diff --git a/src/cmd/compile/internal/gc/testdata/arith_test.go b/src/cmd/compile/internal/gc/testdata/arith_test.go
index 9821095f97514692bc16cb58a2896f0818162263..158fedc28efec5fb67260f644b1693f03102539f 100644
--- a/src/cmd/compile/internal/gc/testdata/arith_test.go
+++ b/src/cmd/compile/internal/gc/testdata/arith_test.go
@@ -1283,24 +1283,65 @@ func div19_uint64(n uint64) bool {
 	return n%19 == 0
 }
 
+//go:noinline
+func div6_int8(n int8) bool {
+	return n%6 == 0
+}
+
+//go:noinline
+func div6_int16(n int16) bool {
+	return n%6 == 0
+}
+
+//go:noinline
+func div6_int32(n int32) bool {
+	return n%6 == 0
+}
+
+//go:noinline
+func div6_int64(n int64) bool {
+	return n%6 == 0
+}
+
+//go:noinline
+func div19_int8(n int8) bool {
+	return n%19 == 0
+}
+
+//go:noinline
+func div19_int16(n int16) bool {
+	return n%19 == 0
+}
+
+//go:noinline
+func div19_int32(n int32) bool {
+	return n%19 == 0
+}
+
+//go:noinline
+func div19_int64(n int64) bool {
+	return n%19 == 0
+}
+
 // testDivisibility confirms that rewrite rules x%c ==0 for c constant are correct.
 func testDivisibility(t *testing.T) {
+	// unsigned tests
 	// test an even and an odd divisor
-	var six, nineteen uint64 = 6, 19
+	var sixU, nineteenU uint64 = 6, 19
 	// test all inputs for uint8, uint16
 	for i := uint64(0); i <= math.MaxUint16; i++ {
 		if i <= math.MaxUint8 {
-			if want, got := uint8(i)%uint8(six) == 0, div6_uint8(uint8(i)); got != want {
+			if want, got := uint8(i)%uint8(sixU) == 0, div6_uint8(uint8(i)); got != want {
 				t.Errorf("div6_uint8(%d) = %v want %v", i, got, want)
 			}
-			if want, got := uint8(i)%uint8(nineteen) == 0, div19_uint8(uint8(i)); got != want {
+			if want, got := uint8(i)%uint8(nineteenU) == 0, div19_uint8(uint8(i)); got != want {
 				t.Errorf("div6_uint19(%d) = %v want %v", i, got, want)
 			}
 		}
-		if want, got := uint16(i)%uint16(six) == 0, div6_uint16(uint16(i)); got != want {
+		if want, got := uint16(i)%uint16(sixU) == 0, div6_uint16(uint16(i)); got != want {
 			t.Errorf("div6_uint16(%d) = %v want %v", i, got, want)
 		}
-		if want, got := uint16(i)%uint16(nineteen) == 0, div19_uint16(uint16(i)); got != want {
+		if want, got := uint16(i)%uint16(nineteenU) == 0, div19_uint16(uint16(i)); got != want {
 			t.Errorf("div19_uint16(%d) = %v want %v", i, got, want)
 		}
 	}
@@ -1308,35 +1349,106 @@ func testDivisibility(t *testing.T) {
 	// spot check inputs for uint32 and uint64
 	xu := []uint64{
 		0, 1, 2, 3, 4, 5,
-		six, 2 * six, 3 * six, 5 * six, 12345 * six,
-		six + 1, 2*six - 5, 3*six + 3, 5*six + 4, 12345*six - 2,
-		nineteen, 2 * nineteen, 3 * nineteen, 5 * nineteen, 12345 * nineteen,
-		nineteen + 1, 2*nineteen - 5, 3*nineteen + 3, 5*nineteen + 4, 12345*nineteen - 2,
+		sixU, 2 * sixU, 3 * sixU, 5 * sixU, 12345 * sixU,
+		sixU + 1, 2*sixU - 5, 3*sixU + 3, 5*sixU + 4, 12345*sixU - 2,
+		nineteenU, 2 * nineteenU, 3 * nineteenU, 5 * nineteenU, 12345 * nineteenU,
+		nineteenU + 1, 2*nineteenU - 5, 3*nineteenU + 3, 5*nineteenU + 4, 12345*nineteenU - 2,
 		maxU32, maxU32 - 1, maxU32 - 2, maxU32 - 3, maxU32 - 4,
-		maxU32, maxU32 - 5, maxU32 - 6, maxU32 - 7, maxU32 - 8,
-		maxU32, maxU32 - 9, maxU32 - 10, maxU32 - 11, maxU32 - 12,
-		maxU32, maxU32 - 13, maxU32 - 14, maxU32 - 15, maxU32 - 16,
-		maxU32, maxU32 - 17, maxU32 - 18, maxU32 - 19, maxU32 - 20,
+		maxU32 - 5, maxU32 - 6, maxU32 - 7, maxU32 - 8,
+		maxU32 - 9, maxU32 - 10, maxU32 - 11, maxU32 - 12,
+		maxU32 - 13, maxU32 - 14, maxU32 - 15, maxU32 - 16,
+		maxU32 - 17, maxU32 - 18, maxU32 - 19, maxU32 - 20,
 		maxU64, maxU64 - 1, maxU64 - 2, maxU64 - 3, maxU64 - 4,
-		maxU64, maxU64 - 5, maxU64 - 6, maxU64 - 7, maxU64 - 8,
-		maxU64, maxU64 - 9, maxU64 - 10, maxU64 - 11, maxU64 - 12,
-		maxU64, maxU64 - 13, maxU64 - 14, maxU64 - 15, maxU64 - 16,
-		maxU64, maxU64 - 17, maxU64 - 18, maxU64 - 19, maxU64 - 20,
+		maxU64 - 5, maxU64 - 6, maxU64 - 7, maxU64 - 8,
+		maxU64 - 9, maxU64 - 10, maxU64 - 11, maxU64 - 12,
+		maxU64 - 13, maxU64 - 14, maxU64 - 15, maxU64 - 16,
+		maxU64 - 17, maxU64 - 18, maxU64 - 19, maxU64 - 20,
 	}
 	for _, x := range xu {
 		if x <= maxU32 {
-			if want, got := uint32(x)%uint32(six) == 0, div6_uint32(uint32(x)); got != want {
+			if want, got := uint32(x)%uint32(sixU) == 0, div6_uint32(uint32(x)); got != want {
 				t.Errorf("div6_uint32(%d) = %v want %v", x, got, want)
 			}
-			if want, got := uint32(x)%uint32(nineteen) == 0, div19_uint32(uint32(x)); got != want {
+			if want, got := uint32(x)%uint32(nineteenU) == 0, div19_uint32(uint32(x)); got != want {
 				t.Errorf("div19_uint32(%d) = %v want %v", x, got, want)
 			}
 		}
-		if want, got := x%six == 0, div6_uint64(x); got != want {
+		if want, got := x%sixU == 0, div6_uint64(x); got != want {
 			t.Errorf("div6_uint64(%d) = %v want %v", x, got, want)
 		}
-		if want, got := x%nineteen == 0, div19_uint64(x); got != want {
+		if want, got := x%nineteenU == 0, div19_uint64(x); got != want {
 			t.Errorf("div19_uint64(%d) = %v want %v", x, got, want)
 		}
 	}
+
+	// signed tests
+	// test an even and an odd divisor
+	var sixS, nineteenS int64 = 6, 19
+	// test all inputs for int8, int16
+	for i := int64(math.MinInt16); i <= math.MaxInt16; i++ {
+		if math.MinInt8 <= i && i <= math.MaxInt8 {
+			if want, got := int8(i)%int8(sixS) == 0, div6_int8(int8(i)); got != want {
+				t.Errorf("div6_int8(%d) = %v want %v", i, got, want)
+			}
+			if want, got := int8(i)%int8(nineteenS) == 0, div19_int8(int8(i)); got != want {
+				t.Errorf("div6_int19(%d) = %v want %v", i, got, want)
+			}
+		}
+		if want, got := int16(i)%int16(sixS) == 0, div6_int16(int16(i)); got != want {
+			t.Errorf("div6_int16(%d) = %v want %v", i, got, want)
+		}
+		if want, got := int16(i)%int16(nineteenS) == 0, div19_int16(int16(i)); got != want {
+			t.Errorf("div19_int16(%d) = %v want %v", i, got, want)
+		}
+	}
+	var minI32, maxI32, minI64, maxI64 int64 = math.MinInt32, math.MaxInt32, math.MinInt64, math.MaxInt64
+	// spot check inputs for int32 and int64
+	xs := []int64{
+		0, 1, 2, 3, 4, 5,
+		-1, -2, -3, -4, -5,
+		sixS, 2 * sixS, 3 * sixS, 5 * sixS, 12345 * sixS,
+		sixS + 1, 2*sixS - 5, 3*sixS + 3, 5*sixS + 4, 12345*sixS - 2,
+		-sixS, -2 * sixS, -3 * sixS, -5 * sixS, -12345 * sixS,
+		-sixS + 1, -2*sixS - 5, -3*sixS + 3, -5*sixS + 4, -12345*sixS - 2,
+		nineteenS, 2 * nineteenS, 3 * nineteenS, 5 * nineteenS, 12345 * nineteenS,
+		nineteenS + 1, 2*nineteenS - 5, 3*nineteenS + 3, 5*nineteenS + 4, 12345*nineteenS - 2,
+		-nineteenS, -2 * nineteenS, -3 * nineteenS, -5 * nineteenS, -12345 * nineteenS,
+		-nineteenS + 1, -2*nineteenS - 5, -3*nineteenS + 3, -5*nineteenS + 4, -12345*nineteenS - 2,
+		minI32, minI32 + 1, minI32 + 2, minI32 + 3, minI32 + 4,
+		minI32 + 5, minI32 + 6, minI32 + 7, minI32 + 8,
+		minI32 + 9, minI32 + 10, minI32 + 11, minI32 + 12,
+		minI32 + 13, minI32 + 14, minI32 + 15, minI32 + 16,
+		minI32 + 17, minI32 + 18, minI32 + 19, minI32 + 20,
+		maxI32, maxI32 - 1, maxI32 - 2, maxI32 - 3, maxI32 - 4,
+		maxI32 - 5, maxI32 - 6, maxI32 - 7, maxI32 - 8,
+		maxI32 - 9, maxI32 - 10, maxI32 - 11, maxI32 - 12,
+		maxI32 - 13, maxI32 - 14, maxI32 - 15, maxI32 - 16,
+		maxI32 - 17, maxI32 - 18, maxI32 - 19, maxI32 - 20,
+		minI64, minI64 + 1, minI64 + 2, minI64 + 3, minI64 + 4,
+		minI64 + 5, minI64 + 6, minI64 + 7, minI64 + 8,
+		minI64 + 9, minI64 + 10, minI64 + 11, minI64 + 12,
+		minI64 + 13, minI64 + 14, minI64 + 15, minI64 + 16,
+		minI64 + 17, minI64 + 18, minI64 + 19, minI64 + 20,
+		maxI64, maxI64 - 1, maxI64 - 2, maxI64 - 3, maxI64 - 4,
+		maxI64 - 5, maxI64 - 6, maxI64 - 7, maxI64 - 8,
+		maxI64 - 9, maxI64 - 10, maxI64 - 11, maxI64 - 12,
+		maxI64 - 13, maxI64 - 14, maxI64 - 15, maxI64 - 16,
+		maxI64 - 17, maxI64 - 18, maxI64 - 19, maxI64 - 20,
+	}
+	for _, x := range xs {
+		if minI32 <= x && x <= maxI32 {
+			if want, got := int32(x)%int32(sixS) == 0, div6_int32(int32(x)); got != want {
+				t.Errorf("div6_int32(%d) = %v want %v", x, got, want)
+			}
+			if want, got := int32(x)%int32(nineteenS) == 0, div19_int32(int32(x)); got != want {
+				t.Errorf("div19_int32(%d) = %v want %v", x, got, want)
+			}
+		}
+		if want, got := x%sixS == 0, div6_int64(x); got != want {
+			t.Errorf("div6_int64(%d) = %v want %v", x, got, want)
+		}
+		if want, got := x%nineteenS == 0, div19_int64(x); got != want {
+			t.Errorf("div19_int64(%d) = %v want %v", x, got, want)
+		}
+	}
 }
diff --git a/src/cmd/compile/internal/ssa/gen/generic.rules b/src/cmd/compile/internal/ssa/gen/generic.rules
index 27ce28aa59cc572b9c10c7adf61350033ff51498..454eb498c6c37b66cfde101f56979935638c06e4 100644
--- a/src/cmd/compile/internal/ssa/gen/generic.rules
+++ b/src/cmd/compile/internal/ssa/gen/generic.rules
@@ -1174,6 +1174,10 @@
 	(Eq32 (Mod32u <typ.UInt32> (ZeroExt8to32 <typ.UInt32> x) (Const32 <typ.UInt32> [c&0xff])) (Const32 <typ.UInt32> [0]))
 (Eq16 (Mod16u x (Const16  [c])) (Const16 [0])) && x.Op != OpConst16 && udivisibleOK(16,c) && !hasSmallRotate(config) ->
 	(Eq32 (Mod32u <typ.UInt32> (ZeroExt16to32 <typ.UInt32> x) (Const32 <typ.UInt32> [c&0xffff])) (Const32 <typ.UInt32> [0]))
+(Eq8 (Mod8 x (Const8  [c])) (Const8 [0])) && x.Op != OpConst8 && sdivisibleOK(8,c) && !hasSmallRotate(config) ->
+	(Eq32 (Mod32 <typ.Int32> (SignExt8to32 <typ.Int32> x) (Const32 <typ.Int32> [c])) (Const32 <typ.Int32> [0]))
+(Eq16 (Mod16 x (Const16  [c])) (Const16 [0])) && x.Op != OpConst16 && sdivisibleOK(16,c) && !hasSmallRotate(config) ->
+	(Eq32 (Mod32 <typ.Int32> (SignExt16to32 <typ.Int32> x) (Const32 <typ.Int32> [c])) (Const32 <typ.Int32> [0]))
 
 // Divisibility checks x%c == 0 convert to multiply and rotate.
 // Note, x%c == 0 is rewritten as x == c*(x/c) during the opt pass
@@ -1184,6 +1188,7 @@
 // Note that if there were an intermediate opt pass, this rule could be applied
 // directly on the Div op and magic division rewrites could be delayed to late opt.
 
+// Unsigned divisibility checks convert to multiply and rotate.
 (Eq8 x (Mul8 (Const8 [c])
   (Trunc32to8
     (Rsh32Ux64
@@ -1489,8 +1494,209 @@
 			(Const64 <typ.UInt64> [int64(udivisible(64,c).max)])
 		)
 
+// Signed divisibility checks convert to multiply, add and rotate.
+(Eq8 x (Mul8 (Const8 [c])
+  (Sub8
+    (Rsh32x64
+      mul:(Mul32
+        (Const32 [m])
+        (SignExt8to32 x))
+      (Const64 [s]))
+    (Rsh32x64
+      (SignExt8to32 x)
+      (Const64 [31])))
+	)
+)
+  && v.Block.Func.pass.name != "opt" && mul.Uses == 1
+  && m == int64(smagic(8,c).m) && s == 8+smagic(8,c).s
+	&& x.Op != OpConst8 && sdivisibleOK(8,c)
+ -> (Leq8U
+			(RotateLeft8 <typ.UInt8>
+				(Add8 <typ.UInt8>
+					(Mul8 <typ.UInt8>
+						(Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).m))])
+						x)
+					(Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).a))])
+				)
+				(Const8 <typ.UInt8> [int64(8-sdivisible(8,c).k)])
+			)
+			(Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).max))])
+		)
+
+(Eq16 x (Mul16 (Const16 [c])
+  (Sub16
+    (Rsh32x64
+      mul:(Mul32
+        (Const32 [m])
+        (SignExt16to32 x))
+      (Const64 [s]))
+    (Rsh32x64
+      (SignExt16to32 x)
+      (Const64 [31])))
+	)
+)
+  && v.Block.Func.pass.name != "opt" && mul.Uses == 1
+  && m == int64(smagic(16,c).m) && s == 16+smagic(16,c).s
+	&& x.Op != OpConst16 && sdivisibleOK(16,c)
+ -> (Leq16U
+			(RotateLeft16 <typ.UInt16>
+				(Add16 <typ.UInt16>
+					(Mul16 <typ.UInt16>
+						(Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).m))])
+						x)
+					(Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).a))])
+				)
+				(Const16 <typ.UInt16> [int64(16-sdivisible(16,c).k)])
+			)
+			(Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).max))])
+		)
+
+(Eq32 x (Mul32 (Const32 [c])
+  (Sub32
+    (Rsh64x64
+      mul:(Mul64
+        (Const64 [m])
+        (SignExt32to64 x))
+      (Const64 [s]))
+    (Rsh64x64
+      (SignExt32to64 x)
+      (Const64 [63])))
+	)
+)
+  && v.Block.Func.pass.name != "opt" && mul.Uses == 1
+  && m == int64(smagic(32,c).m) && s == 32+smagic(32,c).s
+	&& x.Op != OpConst32 && sdivisibleOK(32,c)
+ -> (Leq32U
+			(RotateLeft32 <typ.UInt32>
+				(Add32 <typ.UInt32>
+					(Mul32 <typ.UInt32>
+						(Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))])
+						x)
+					(Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))])
+				)
+				(Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)])
+			)
+			(Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))])
+		)
+
+(Eq32 x (Mul32 (Const32 [c])
+  (Sub32
+    (Rsh32x64
+      mul:(Hmul32
+        (Const32 [m])
+        x)
+      (Const64 [s]))
+    (Rsh32x64
+      x
+      (Const64 [31])))
+	)
+)
+  && v.Block.Func.pass.name != "opt" && mul.Uses == 1
+  && m == int64(int32(smagic(32,c).m/2)) && s == smagic(32,c).s-1
+	&& x.Op != OpConst32 && sdivisibleOK(32,c)
+ -> (Leq32U
+			(RotateLeft32 <typ.UInt32>
+				(Add32 <typ.UInt32>
+					(Mul32 <typ.UInt32>
+						(Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))])
+						x)
+					(Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))])
+				)
+				(Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)])
+			)
+			(Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))])
+		)
+
+(Eq32 x (Mul32 (Const32 [c])
+  (Sub32
+    (Rsh32x64
+      (Add32
+        mul:(Hmul32
+          (Const32 [m])
+          x)
+        x)
+      (Const64 [s]))
+    (Rsh32x64
+      x
+      (Const64 [31])))
+	)
+)
+  && v.Block.Func.pass.name != "opt" && mul.Uses == 1
+  && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s
+	&& x.Op != OpConst32 && sdivisibleOK(32,c)
+ -> (Leq32U
+			(RotateLeft32 <typ.UInt32>
+				(Add32 <typ.UInt32>
+					(Mul32 <typ.UInt32>
+						(Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))])
+						x)
+					(Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))])
+				)
+				(Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)])
+			)
+			(Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))])
+		)
+
+(Eq64 x (Mul64 (Const64 [c])
+  (Sub64
+    (Rsh64x64
+      mul:(Hmul64
+        (Const64 [m])
+        x)
+      (Const64 [s]))
+    (Rsh64x64
+      x
+      (Const64 [63])))
+	)
+)
+  && v.Block.Func.pass.name != "opt" && mul.Uses == 1
+  && m == int64(smagic(64,c).m/2) && s == smagic(64,c).s-1
+	&& x.Op != OpConst64 && sdivisibleOK(64,c)
+ -> (Leq64U
+			(RotateLeft64 <typ.UInt64>
+				(Add64 <typ.UInt64>
+					(Mul64 <typ.UInt64>
+						(Const64 <typ.UInt64> [int64(sdivisible(64,c).m)])
+						x)
+					(Const64 <typ.UInt64> [int64(sdivisible(64,c).a)])
+				)
+				(Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)])
+			)
+			(Const64 <typ.UInt64> [int64(sdivisible(64,c).max)])
+		)
+
+(Eq64 x (Mul64 (Const64 [c])
+  (Sub64
+    (Rsh64x64
+      (Add64
+        mul:(Hmul64
+          (Const64 [m])
+          x)
+        x)
+      (Const64 [s]))
+    (Rsh64x64
+      x
+      (Const64 [63])))
+	)
+)
+  && v.Block.Func.pass.name != "opt" && mul.Uses == 1
+  && m == int64(smagic(64,c).m) && s == smagic(64,c).s
+	&& x.Op != OpConst64 && sdivisibleOK(64,c)
+ -> (Leq64U
+			(RotateLeft64 <typ.UInt64>
+				(Add64 <typ.UInt64>
+					(Mul64 <typ.UInt64>
+						(Const64 <typ.UInt64> [int64(sdivisible(64,c).m)])
+						x)
+					(Const64 <typ.UInt64> [int64(sdivisible(64,c).a)])
+				)
+				(Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)])
+			)
+			(Const64 <typ.UInt64> [int64(sdivisible(64,c).max)])
+		)
+
 // Divisibility check for signed integers for power of two constant are simple mask.
-// However, we must match against the rewritten n%c == 0 -> n - c*(n/c) == 0 -> n == c *(n/c)
+// However, we must match against the rewritten n%c == 0 -> n - c*(n/c) == 0 -> n == c*(n/c)
 // where n/c contains fixup code to handle signed n.
 (Eq8 n (Lsh8x64
   (Rsh8x64
diff --git a/src/cmd/compile/internal/ssa/magic.go b/src/cmd/compile/internal/ssa/magic.go
index b1c4eb1222de0a2fa6460b051d3da51233685664..e0c627184bbcd3b11ea8df3fe7585eaa9a6b4bdb 100644
--- a/src/cmd/compile/internal/ssa/magic.go
+++ b/src/cmd/compile/internal/ssa/magic.go
@@ -195,7 +195,7 @@ func smagic(n uint, c int64) smagicData {
 // by using the modular inverse with respect to the word size 2^n.
 //
 // Given c, compute m such that (c * m) mod 2^n == 1
-// Then if c divides x (x%c ==0), the quotient is given by q = x/c == x*cinv mod 2^n
+// Then if c divides x (x%c ==0), the quotient is given by q = x/c == x*m mod 2^n
 //
 // x can range from 0, c, 2c, 3c, ... ⎣(2^n - 1)/c⎦ * c the maximum multiple
 // Thus, x*m mod 2^n is 0, 1, 2, 3, ... ⎣(2^n - 1)/c⎦
@@ -285,3 +285,97 @@ func udivisible(n uint, c int64) udivisibleData {
 		max: max,
 	}
 }
+
+// For signed integers, a similar method follows.
+//
+// Given c > 1 and odd, compute m such that (c * m) mod 2^n == 1
+// Then if c divides x (x%c ==0), the quotient is given by q = x/c == x*m mod 2^n
+//
+// x can range from ⎡-2^(n-1)/c⎤ * c, ... -c, 0, c, ...  ⎣(2^(n-1) - 1)/c⎦ * c
+// Thus, x*m mod 2^n is ⎡-2^(n-1)/c⎤, ... -2, -1, 0, 1, 2, ... ⎣(2^(n-1) - 1)/c⎦
+//
+// So, x is a multiple of c if and only if:
+// ⎡-2^(n-1)/c⎤ <= x*m mod 2^n <= ⎣(2^(n-1) - 1)/c⎦
+//
+// Since c > 1 and odd, this can be simplified by
+// ⎡-2^(n-1)/c⎤ == ⎡(-2^(n-1) + 1)/c⎤ == -⎣(2^(n-1) - 1)/c⎦
+//
+// -⎣(2^(n-1) - 1)/c⎦ <= x*m mod 2^n <= ⎣(2^(n-1) - 1)/c⎦
+//
+// To extend this to even integers, consider c = d0 * 2^k where d0 is odd.
+// We can test whether x is divisible by both d0 and 2^k.
+//
+// Let m be such that (d0 * m) mod 2^n == 1.
+// Let q = x*m mod 2^n. Then c divides x if:
+//
+// -⎣(2^(n-1) - 1)/d0⎦ <= q <= ⎣(2^(n-1) - 1)/d0⎦ and q ends in at least k 0-bits
+//
+// To transform this to a single comparison, we use the following theorem (ZRS in Hacker's Delight).
+//
+// For a >= 0 the following conditions are equivalent:
+// 1) -a <= x <= a and x ends in at least k 0-bits
+// 2) RotRight(x+a', k) <= ⎣2a'/2^k⎦
+//
+// Where a' = a & -2^k (a with its right k bits set to zero)
+//
+// To see that 1 & 2 are equivalent, note that -a <= x <= a is equivalent to
+// -a' <= x <= a' if and only if x ends in at least k 0-bits.  Adding -a' to each side gives,
+// 0 <= x + a' <= 2a' and x + a' ends in at least k 0-bits if and only if x does since a' has
+// k 0-bits by definition.  We can use theorem ZRU above with x -> x + a' and a -> 2a' giving 1) == 2).
+//
+// Let m be such that (d0 * m) mod 2^n == 1.
+// Let q = x*m mod 2^n.
+// Let a' = ⎣(2^(n-1) - 1)/d0⎦ & -2^k
+//
+// Then the divisibility test is:
+//
+// RotRight(q+a', k) <= ⎣2a'/2^k⎦
+//
+// Note that the calculation is performed using unsigned integers.
+// Since a' can have n-1 bits, 2a' may have n bits and there is no risk of overflow.
+
+// sdivisibleOK reports whether we should strength reduce a n-bit dividisibilty check by c.
+func sdivisibleOK(n uint, c int64) bool {
+	if c < 0 {
+		// Doesn't work for negative c.
+		return false
+	}
+	// Doesn't work for 0.
+	// Don't use it for powers of 2.
+	return c&(c-1) != 0
+}
+
+type sdivisibleData struct {
+	k   int64  // trailingZeros(c)
+	m   uint64 // m * (c>>k) mod 2^n == 1 multiplicative inverse of odd portion modulo 2^n
+	a   uint64 // ⎣(2^(n-1) - 1)/ (c>>k)⎦ & -(1<<k) additive constant
+	max uint64 // ⎣(2 a) / (1<<k)⎦ max value to for divisibility
+}
+
+func sdivisible(n uint, c int64) sdivisibleData {
+	d := uint64(c)
+	k := bits.TrailingZeros64(d)
+	d0 := d >> uint(k) // the odd portion of the divisor
+
+	mask := ^uint64(0) >> (64 - n)
+
+	// Calculate the multiplicative inverse via Newton's method.
+	// Quadratic convergence doubles the number of correct bits per iteration.
+	m := d0            // initial guess correct to 3-bits d0*d0 mod 8 == 1
+	m = m * (2 - m*d0) // 6-bits
+	m = m * (2 - m*d0) // 12-bits
+	m = m * (2 - m*d0) // 24-bits
+	m = m * (2 - m*d0) // 48-bits
+	m = m * (2 - m*d0) // 96-bits >= 64-bits
+	m = m & mask
+
+	a := ((mask >> 1) / d0) & -(1 << uint(k))
+	max := (2 * a) >> uint(k)
+
+	return sdivisibleData{
+		k:   int64(k),
+		m:   m,
+		a:   a,
+		max: max,
+	}
+}
diff --git a/src/cmd/compile/internal/ssa/magic_test.go b/src/cmd/compile/internal/ssa/magic_test.go
index 1d15baf5372fac7011cf5ddfd898f75dd6699576..7c6009dea6c83b9e0daeedf30b13a89b36d84844 100644
--- a/src/cmd/compile/internal/ssa/magic_test.go
+++ b/src/cmd/compile/internal/ssa/magic_test.go
@@ -184,7 +184,7 @@ func TestMagicSigned(t *testing.T) {
 				-c - 1, -c, -c + 1, c - 1, c, c + 1,
 				-2*c - 1, -2 * c, -2*c + 1, 2*c - 1, 2 * c, 2*c + 1,
 				-mul - 1, -mul, -mul + 1, mul - 1, mul, mul + 1,
-				int64(1)<<n - 1, -int64(1)<<n + 1,
+				int64(1)<<(n-1) - 1, -int64(1) << (n - 1),
 			} {
 				X := new(big.Int).SetInt64(x)
 				if X.Cmp(Min) < 0 || X.Cmp(Max) > 0 {
@@ -303,3 +303,108 @@ func TestDivisibleUnsigned(t *testing.T) {
 		}
 	}
 }
+
+func testDivisibleExhaustive(t *testing.T, n uint) {
+	minI := -int64(1) << (n - 1)
+	maxI := int64(1) << (n - 1)
+	for c := int64(1); c < maxI; c++ {
+		if !sdivisibleOK(n, int64(c)) {
+			continue
+		}
+		k := sdivisible(n, int64(c)).k
+		m := sdivisible(n, int64(c)).m
+		a := sdivisible(n, int64(c)).a
+		max := sdivisible(n, int64(c)).max
+		mask := ^uint64(0) >> (64 - n)
+		for i := minI; i < maxI; i++ {
+			want := i%c == 0
+			mul := (uint64(i)*m + a) & mask
+			rot := (mul>>uint(k) | mul<<(n-uint(k))) & mask
+			got := rot <= max
+			if want != got {
+				t.Errorf("signed divisible wrong for %d %% %d == 0: got %v, want %v (k=%d,m=%d,a=%d,max=%d)\n", i, c, got, want, k, m, a, max)
+			}
+		}
+	}
+}
+
+func TestDivisibleExhaustive8(t *testing.T) {
+	testDivisibleExhaustive(t, 8)
+}
+
+func TestDivisibleExhaustive16(t *testing.T) {
+	if testing.Short() {
+		t.Skip("slow test; skipping")
+	}
+	testDivisibleExhaustive(t, 16)
+}
+
+func TestDivisibleSigned(t *testing.T) {
+	One := new(big.Int).SetInt64(1)
+	for _, n := range [...]uint{8, 16, 32, 64} {
+		TwoNMinusOne := new(big.Int).Lsh(One, n-1)
+		Max := new(big.Int).Sub(TwoNMinusOne, One)
+		Min := new(big.Int).Neg(TwoNMinusOne)
+		for _, c := range [...]int64{
+			3,
+			5,
+			6,
+			7,
+			9,
+			10,
+			11,
+			12,
+			13,
+			14,
+			15,
+			17,
+			1<<7 - 1,
+			1<<7 + 1,
+			1<<15 - 1,
+			1<<15 + 1,
+			1<<31 - 1,
+			1<<31 + 1,
+			1<<63 - 1,
+		} {
+			if c>>(n-1) != 0 {
+				continue // not appropriate for the given n.
+			}
+			if !sdivisibleOK(n, int64(c)) {
+				t.Errorf("expected n=%d c=%d to pass\n", n, c)
+			}
+			k := sdivisible(n, int64(c)).k
+			m := sdivisible(n, int64(c)).m
+			a := sdivisible(n, int64(c)).a
+			max := sdivisible(n, int64(c)).max
+			mask := ^uint64(0) >> (64 - n)
+
+			C := new(big.Int).SetInt64(c)
+
+			// Find largest multiple of c.
+			Mul := new(big.Int).Div(Max, C)
+			Mul.Mul(Mul, C)
+			mul := Mul.Int64()
+
+			// Try some input values, mostly around multiples of c.
+			for _, x := range [...]int64{
+				-1, 1,
+				-c - 1, -c, -c + 1, c - 1, c, c + 1,
+				-2*c - 1, -2 * c, -2*c + 1, 2*c - 1, 2 * c, 2*c + 1,
+				-mul - 1, -mul, -mul + 1, mul - 1, mul, mul + 1,
+				int64(1)<<(n-1) - 1, -int64(1) << (n - 1),
+			} {
+				X := new(big.Int).SetInt64(x)
+				if X.Cmp(Min) < 0 || X.Cmp(Max) > 0 {
+					continue
+				}
+				want := x%c == 0
+				mul := (uint64(x)*m + a) & mask
+				rot := (mul>>uint(k) | mul<<(n-uint(k))) & mask
+				got := rot <= max
+				if want != got {
+					t.Errorf("signed divisible wrong for %d %% %d == 0: got %v, want %v (k=%d,m=%d,a=%d,max=%d)\n", x, c, got, want, k, m, a, max)
+				}
+			}
+		}
+	}
+}
diff --git a/src/cmd/compile/internal/ssa/rewritegeneric.go b/src/cmd/compile/internal/ssa/rewritegeneric.go
index cefa12d4333d0a2b2ae94fa51e18e3c4cd2952ac..7117f77d2481ff1ecce2515579fd428f7242af52 100644
--- a/src/cmd/compile/internal/ssa/rewritegeneric.go
+++ b/src/cmd/compile/internal/ssa/rewritegeneric.go
@@ -98,17 +98,17 @@ func rewriteValuegeneric(v *Value) bool {
 	case OpDiv8u:
 		return rewriteValuegeneric_OpDiv8u_0(v)
 	case OpEq16:
-		return rewriteValuegeneric_OpEq16_0(v) || rewriteValuegeneric_OpEq16_10(v) || rewriteValuegeneric_OpEq16_20(v) || rewriteValuegeneric_OpEq16_30(v) || rewriteValuegeneric_OpEq16_40(v)
+		return rewriteValuegeneric_OpEq16_0(v) || rewriteValuegeneric_OpEq16_10(v) || rewriteValuegeneric_OpEq16_20(v) || rewriteValuegeneric_OpEq16_30(v) || rewriteValuegeneric_OpEq16_40(v) || rewriteValuegeneric_OpEq16_50(v)
 	case OpEq32:
-		return rewriteValuegeneric_OpEq32_0(v) || rewriteValuegeneric_OpEq32_10(v) || rewriteValuegeneric_OpEq32_20(v) || rewriteValuegeneric_OpEq32_30(v) || rewriteValuegeneric_OpEq32_40(v) || rewriteValuegeneric_OpEq32_50(v) || rewriteValuegeneric_OpEq32_60(v)
+		return rewriteValuegeneric_OpEq32_0(v) || rewriteValuegeneric_OpEq32_10(v) || rewriteValuegeneric_OpEq32_20(v) || rewriteValuegeneric_OpEq32_30(v) || rewriteValuegeneric_OpEq32_40(v) || rewriteValuegeneric_OpEq32_50(v) || rewriteValuegeneric_OpEq32_60(v) || rewriteValuegeneric_OpEq32_70(v) || rewriteValuegeneric_OpEq32_80(v) || rewriteValuegeneric_OpEq32_90(v)
 	case OpEq32F:
 		return rewriteValuegeneric_OpEq32F_0(v)
 	case OpEq64:
-		return rewriteValuegeneric_OpEq64_0(v) || rewriteValuegeneric_OpEq64_10(v) || rewriteValuegeneric_OpEq64_20(v) || rewriteValuegeneric_OpEq64_30(v)
+		return rewriteValuegeneric_OpEq64_0(v) || rewriteValuegeneric_OpEq64_10(v) || rewriteValuegeneric_OpEq64_20(v) || rewriteValuegeneric_OpEq64_30(v) || rewriteValuegeneric_OpEq64_40(v) || rewriteValuegeneric_OpEq64_50(v) || rewriteValuegeneric_OpEq64_60(v)
 	case OpEq64F:
 		return rewriteValuegeneric_OpEq64F_0(v)
 	case OpEq8:
-		return rewriteValuegeneric_OpEq8_0(v) || rewriteValuegeneric_OpEq8_10(v) || rewriteValuegeneric_OpEq8_20(v)
+		return rewriteValuegeneric_OpEq8_0(v) || rewriteValuegeneric_OpEq8_10(v) || rewriteValuegeneric_OpEq8_20(v) || rewriteValuegeneric_OpEq8_30(v)
 	case OpEqB:
 		return rewriteValuegeneric_OpEqB_0(v)
 	case OpEqInter:
@@ -9041,6 +9041,92 @@ func rewriteValuegeneric_OpEq16_0(v *Value) bool {
 		v.AddArg(v3)
 		return true
 	}
+	// match: (Eq16 (Mod16 x (Const16 [c])) (Const16 [0]))
+	// cond: x.Op != OpConst16 && sdivisibleOK(16,c) && !hasSmallRotate(config)
+	// result: (Eq32 (Mod32 <typ.Int32> (SignExt16to32 <typ.Int32> x) (Const32 <typ.Int32> [c])) (Const32 <typ.Int32> [0]))
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMod16 {
+			break
+		}
+		_ = v_0.Args[1]
+		x := v_0.Args[0]
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst16 {
+			break
+		}
+		c := v_0_1.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst16 {
+			break
+		}
+		if v_1.AuxInt != 0 {
+			break
+		}
+		if !(x.Op != OpConst16 && sdivisibleOK(16, c) && !hasSmallRotate(config)) {
+			break
+		}
+		v.reset(OpEq32)
+		v0 := b.NewValue0(v.Pos, OpMod32, typ.Int32)
+		v1 := b.NewValue0(v.Pos, OpSignExt16to32, typ.Int32)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.Int32)
+		v2.AuxInt = c
+		v0.AddArg(v2)
+		v.AddArg(v0)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.Int32)
+		v3.AuxInt = 0
+		v.AddArg(v3)
+		return true
+	}
+	return false
+}
+func rewriteValuegeneric_OpEq16_10(v *Value) bool {
+	b := v.Block
+	config := b.Func.Config
+	typ := &b.Func.Config.Types
+	// match: (Eq16 (Const16 [0]) (Mod16 x (Const16 [c])))
+	// cond: x.Op != OpConst16 && sdivisibleOK(16,c) && !hasSmallRotate(config)
+	// result: (Eq32 (Mod32 <typ.Int32> (SignExt16to32 <typ.Int32> x) (Const32 <typ.Int32> [c])) (Const32 <typ.Int32> [0]))
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst16 {
+			break
+		}
+		if v_0.AuxInt != 0 {
+			break
+		}
+		v_1 := v.Args[1]
+		if v_1.Op != OpMod16 {
+			break
+		}
+		_ = v_1.Args[1]
+		x := v_1.Args[0]
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst16 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(x.Op != OpConst16 && sdivisibleOK(16, c) && !hasSmallRotate(config)) {
+			break
+		}
+		v.reset(OpEq32)
+		v0 := b.NewValue0(v.Pos, OpMod32, typ.Int32)
+		v1 := b.NewValue0(v.Pos, OpSignExt16to32, typ.Int32)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.Int32)
+		v2.AuxInt = c
+		v0.AddArg(v2)
+		v.AddArg(v0)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.Int32)
+		v3.AuxInt = 0
+		v.AddArg(v3)
+		return true
+	}
 	// match: (Eq16 x (Mul16 (Const16 [c]) (Trunc64to16 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (ZeroExt16to64 x)) (Const64 [s])))))
 	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<16+umagic(16,c).m) && s == 16+umagic(16,c).s && x.Op != OpConst16 && udivisibleOK(16,c)
 	// result: (Leq16U (RotateLeft16 <typ.UInt16> (Mul16 <typ.UInt16> (Const16 <typ.UInt16> [int64(int16(udivisible(16,c).m))]) x) (Const16 <typ.UInt16> [int64(16-udivisible(16,c).k)]) ) (Const16 <typ.UInt16> [int64(int16(udivisible(16,c).max))]) )
@@ -9108,11 +9194,6 @@ func rewriteValuegeneric_OpEq16_0(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	return false
-}
-func rewriteValuegeneric_OpEq16_10(v *Value) bool {
-	b := v.Block
-	typ := &b.Func.Config.Types
 	// match: (Eq16 x (Mul16 (Const16 [c]) (Trunc64to16 (Rsh64Ux64 mul:(Mul64 (ZeroExt16to64 x) (Const64 [m])) (Const64 [s])))))
 	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<16+umagic(16,c).m) && s == 16+umagic(16,c).s && x.Op != OpConst16 && udivisibleOK(16,c)
 	// result: (Leq16U (RotateLeft16 <typ.UInt16> (Mul16 <typ.UInt16> (Const16 <typ.UInt16> [int64(int16(udivisible(16,c).m))]) x) (Const16 <typ.UInt16> [int64(16-udivisible(16,c).k)]) ) (Const16 <typ.UInt16> [int64(int16(udivisible(16,c).max))]) )
@@ -9645,6 +9726,11 @@ func rewriteValuegeneric_OpEq16_10(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
+	return false
+}
+func rewriteValuegeneric_OpEq16_20(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
 	// match: (Eq16 x (Mul16 (Const16 [c]) (Trunc32to16 (Rsh32Ux64 mul:(Mul32 (ZeroExt16to32 x) (Const32 [m])) (Const64 [s])))))
 	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<15+umagic(16,c).m/2) && s == 16+umagic(16,c).s-1 && x.Op != OpConst16 && udivisibleOK(16,c)
 	// result: (Leq16U (RotateLeft16 <typ.UInt16> (Mul16 <typ.UInt16> (Const16 <typ.UInt16> [int64(int16(udivisible(16,c).m))]) x) (Const16 <typ.UInt16> [int64(16-udivisible(16,c).k)]) ) (Const16 <typ.UInt16> [int64(int16(udivisible(16,c).max))]) )
@@ -9779,11 +9865,6 @@ func rewriteValuegeneric_OpEq16_10(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	return false
-}
-func rewriteValuegeneric_OpEq16_20(v *Value) bool {
-	b := v.Block
-	typ := &b.Func.Config.Types
 	// match: (Eq16 x (Mul16 (Trunc32to16 (Rsh32Ux64 mul:(Mul32 (ZeroExt16to32 x) (Const32 [m])) (Const64 [s]))) (Const16 [c])))
 	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<15+umagic(16,c).m/2) && s == 16+umagic(16,c).s-1 && x.Op != OpConst16 && udivisibleOK(16,c)
 	// result: (Leq16U (RotateLeft16 <typ.UInt16> (Mul16 <typ.UInt16> (Const16 <typ.UInt16> [int64(int16(udivisible(16,c).m))]) x) (Const16 <typ.UInt16> [int64(16-udivisible(16,c).k)]) ) (Const16 <typ.UInt16> [int64(int16(udivisible(16,c).max))]) )
@@ -10352,6 +10433,11 @@ func rewriteValuegeneric_OpEq16_20(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
+	return false
+}
+func rewriteValuegeneric_OpEq16_30(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
 	// match: (Eq16 x (Mul16 (Trunc32to16 (Rsh32Ux64 mul:(Mul32 (Rsh32Ux64 (ZeroExt16to32 x) (Const64 [1])) (Const32 [m])) (Const64 [s]))) (Const16 [c])))
 	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<15+(umagic(16,c).m+1)/2) && s == 16+umagic(16,c).s-2 && x.Op != OpConst16 && udivisibleOK(16,c)
 	// result: (Leq16U (RotateLeft16 <typ.UInt16> (Mul16 <typ.UInt16> (Const16 <typ.UInt16> [int64(int16(udivisible(16,c).m))]) x) (Const16 <typ.UInt16> [int64(16-udivisible(16,c).k)]) ) (Const16 <typ.UInt16> [int64(int16(udivisible(16,c).max))]) )
@@ -10509,11 +10595,6 @@ func rewriteValuegeneric_OpEq16_20(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	return false
-}
-func rewriteValuegeneric_OpEq16_30(v *Value) bool {
-	b := v.Block
-	typ := &b.Func.Config.Types
 	// match: (Eq16 (Mul16 (Const16 [c]) (Trunc32to16 (Rsh32Ux64 mul:(Mul32 (Rsh32Ux64 (ZeroExt16to32 x) (Const64 [1])) (Const32 [m])) (Const64 [s])))) x)
 	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<15+(umagic(16,c).m+1)/2) && s == 16+umagic(16,c).s-2 && x.Op != OpConst16 && udivisibleOK(16,c)
 	// result: (Leq16U (RotateLeft16 <typ.UInt16> (Mul16 <typ.UInt16> (Const16 <typ.UInt16> [int64(int16(udivisible(16,c).m))]) x) (Const16 <typ.UInt16> [int64(16-udivisible(16,c).k)]) ) (Const16 <typ.UInt16> [int64(int16(udivisible(16,c).max))]) )
@@ -11202,6 +11283,11 @@ func rewriteValuegeneric_OpEq16_30(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
+	return false
+}
+func rewriteValuegeneric_OpEq16_40(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
 	// match: (Eq16 (Mul16 (Const16 [c]) (Trunc32to16 (Rsh32Ux64 (Avg32u (Lsh32x64 (ZeroExt16to32 x) (Const64 [16])) mul:(Mul32 (ZeroExt16to32 x) (Const32 [m]))) (Const64 [s])))) x)
 	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(16,c).m) && s == 16+umagic(16,c).s-1 && x.Op != OpConst16 && udivisibleOK(16,c)
 	// result: (Leq16U (RotateLeft16 <typ.UInt16> (Mul16 <typ.UInt16> (Const16 <typ.UInt16> [int64(int16(udivisible(16,c).m))]) x) (Const16 <typ.UInt16> [int64(16-udivisible(16,c).k)]) ) (Const16 <typ.UInt16> [int64(int16(udivisible(16,c).max))]) )
@@ -11382,11 +11468,6 @@ func rewriteValuegeneric_OpEq16_30(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	return false
-}
-func rewriteValuegeneric_OpEq16_40(v *Value) bool {
-	b := v.Block
-	typ := &b.Func.Config.Types
 	// match: (Eq16 (Mul16 (Trunc32to16 (Rsh32Ux64 (Avg32u (Lsh32x64 (ZeroExt16to32 x) (Const64 [16])) mul:(Mul32 (ZeroExt16to32 x) (Const32 [m]))) (Const64 [s]))) (Const16 [c])) x)
 	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(16,c).m) && s == 16+umagic(16,c).s-1 && x.Op != OpConst16 && udivisibleOK(16,c)
 	// result: (Leq16U (RotateLeft16 <typ.UInt16> (Mul16 <typ.UInt16> (Const16 <typ.UInt16> [int64(int16(udivisible(16,c).m))]) x) (Const16 <typ.UInt16> [int64(16-udivisible(16,c).k)]) ) (Const16 <typ.UInt16> [int64(int16(udivisible(16,c).max))]) )
@@ -11477,703 +11558,682 @@ func rewriteValuegeneric_OpEq16_40(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq16 n (Lsh16x64 (Rsh16x64 (Add16 <t> n (Rsh16Ux64 <t> (Rsh16x64 <t> n (Const64 <typ.UInt64> [15])) (Const64 <typ.UInt64> [kbar]))) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])))
-	// cond: k > 0 && k < 15 && kbar == 16 - k
-	// result: (Eq16 (And16 <t> n (Const16 <t> [int64(1<<uint(k)-1)])) (Const16 <t> [0]))
+	// match: (Eq16 x (Mul16 (Const16 [c]) (Sub16 (Rsh32x64 mul:(Mul32 (Const32 [m]) (SignExt16to32 x)) (Const64 [s])) (Rsh32x64 (SignExt16to32 x) (Const64 [31])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(16,c).m) && s == 16+smagic(16,c).s && x.Op != OpConst16 && sdivisibleOK(16,c)
+	// result: (Leq16U (RotateLeft16 <typ.UInt16> (Add16 <typ.UInt16> (Mul16 <typ.UInt16> (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).m))]) x) (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).a))]) ) (Const16 <typ.UInt16> [int64(16-sdivisible(16,c).k)]) ) (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).max))]) )
 	for {
 		_ = v.Args[1]
-		n := v.Args[0]
+		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpLsh16x64 {
+		if v_1.Op != OpMul16 {
 			break
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh16x64 {
-			break
-		}
-		_ = v_1_0.Args[1]
-		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpAdd16 {
-			break
-		}
-		t := v_1_0_0.Type
-		_ = v_1_0_0.Args[1]
-		if n != v_1_0_0.Args[0] {
-			break
-		}
-		v_1_0_0_1 := v_1_0_0.Args[1]
-		if v_1_0_0_1.Op != OpRsh16Ux64 {
-			break
-		}
-		if v_1_0_0_1.Type != t {
-			break
-		}
-		_ = v_1_0_0_1.Args[1]
-		v_1_0_0_1_0 := v_1_0_0_1.Args[0]
-		if v_1_0_0_1_0.Op != OpRsh16x64 {
+		if v_1_0.Op != OpConst16 {
 			break
 		}
-		if v_1_0_0_1_0.Type != t {
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpSub16 {
 			break
 		}
-		_ = v_1_0_0_1_0.Args[1]
-		if n != v_1_0_0_1_0.Args[0] {
+		_ = v_1_1.Args[1]
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh32x64 {
 			break
 		}
-		v_1_0_0_1_0_1 := v_1_0_0_1_0.Args[1]
-		if v_1_0_0_1_0_1.Op != OpConst64 {
+		_ = v_1_1_0.Args[1]
+		mul := v_1_1_0.Args[0]
+		if mul.Op != OpMul32 {
 			break
 		}
-		if v_1_0_0_1_0_1.Type != typ.UInt64 {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst32 {
 			break
 		}
-		if v_1_0_0_1_0_1.AuxInt != 15 {
+		m := mul_0.AuxInt
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpSignExt16to32 {
 			break
 		}
-		v_1_0_0_1_1 := v_1_0_0_1.Args[1]
-		if v_1_0_0_1_1.Op != OpConst64 {
+		if x != mul_1.Args[0] {
 			break
 		}
-		if v_1_0_0_1_1.Type != typ.UInt64 {
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
 			break
 		}
-		kbar := v_1_0_0_1_1.AuxInt
-		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		s := v_1_1_0_1.AuxInt
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpRsh32x64 {
 			break
 		}
-		if v_1_0_1.Type != typ.UInt64 {
+		_ = v_1_1_1.Args[1]
+		v_1_1_1_0 := v_1_1_1.Args[0]
+		if v_1_1_1_0.Op != OpSignExt16to32 {
 			break
 		}
-		k := v_1_0_1.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst64 {
+		if x != v_1_1_1_0.Args[0] {
 			break
 		}
-		if v_1_1.Type != typ.UInt64 {
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
 			break
 		}
-		if v_1_1.AuxInt != k {
+		if v_1_1_1_1.AuxInt != 31 {
 			break
 		}
-		if !(k > 0 && k < 15 && kbar == 16-k) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(16, c).m) && s == 16+smagic(16, c).s && x.Op != OpConst16 && sdivisibleOK(16, c)) {
 			break
 		}
-		v.reset(OpEq16)
-		v0 := b.NewValue0(v.Pos, OpAnd16, t)
-		v0.AddArg(n)
-		v1 := b.NewValue0(v.Pos, OpConst16, t)
-		v1.AuxInt = int64(1<<uint(k) - 1)
+		v.reset(OpLeq16U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft16, typ.UInt16)
+		v1 := b.NewValue0(v.Pos, OpAdd16, typ.UInt16)
+		v2 := b.NewValue0(v.Pos, OpMul16, typ.UInt16)
+		v3 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v3.AuxInt = int64(int16(sdivisible(16, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v4.AuxInt = int64(int16(sdivisible(16, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v5.AuxInt = int64(16 - sdivisible(16, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v2 := b.NewValue0(v.Pos, OpConst16, t)
-		v2.AuxInt = 0
-		v.AddArg(v2)
+		v6 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v6.AuxInt = int64(int16(sdivisible(16, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq16 n (Lsh16x64 (Rsh16x64 (Add16 <t> (Rsh16Ux64 <t> (Rsh16x64 <t> n (Const64 <typ.UInt64> [15])) (Const64 <typ.UInt64> [kbar])) n) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])))
-	// cond: k > 0 && k < 15 && kbar == 16 - k
-	// result: (Eq16 (And16 <t> n (Const16 <t> [int64(1<<uint(k)-1)])) (Const16 <t> [0]))
+	// match: (Eq16 x (Mul16 (Const16 [c]) (Sub16 (Rsh32x64 mul:(Mul32 (SignExt16to32 x) (Const32 [m])) (Const64 [s])) (Rsh32x64 (SignExt16to32 x) (Const64 [31])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(16,c).m) && s == 16+smagic(16,c).s && x.Op != OpConst16 && sdivisibleOK(16,c)
+	// result: (Leq16U (RotateLeft16 <typ.UInt16> (Add16 <typ.UInt16> (Mul16 <typ.UInt16> (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).m))]) x) (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).a))]) ) (Const16 <typ.UInt16> [int64(16-sdivisible(16,c).k)]) ) (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).max))]) )
 	for {
 		_ = v.Args[1]
-		n := v.Args[0]
+		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpLsh16x64 {
+		if v_1.Op != OpMul16 {
 			break
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh16x64 {
-			break
-		}
-		_ = v_1_0.Args[1]
-		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpAdd16 {
-			break
-		}
-		t := v_1_0_0.Type
-		_ = v_1_0_0.Args[1]
-		v_1_0_0_0 := v_1_0_0.Args[0]
-		if v_1_0_0_0.Op != OpRsh16Ux64 {
-			break
-		}
-		if v_1_0_0_0.Type != t {
-			break
-		}
-		_ = v_1_0_0_0.Args[1]
-		v_1_0_0_0_0 := v_1_0_0_0.Args[0]
-		if v_1_0_0_0_0.Op != OpRsh16x64 {
-			break
-		}
-		if v_1_0_0_0_0.Type != t {
+		if v_1_0.Op != OpConst16 {
 			break
 		}
-		_ = v_1_0_0_0_0.Args[1]
-		if n != v_1_0_0_0_0.Args[0] {
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpSub16 {
 			break
 		}
-		v_1_0_0_0_0_1 := v_1_0_0_0_0.Args[1]
-		if v_1_0_0_0_0_1.Op != OpConst64 {
+		_ = v_1_1.Args[1]
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh32x64 {
 			break
 		}
-		if v_1_0_0_0_0_1.Type != typ.UInt64 {
+		_ = v_1_1_0.Args[1]
+		mul := v_1_1_0.Args[0]
+		if mul.Op != OpMul32 {
 			break
 		}
-		if v_1_0_0_0_0_1.AuxInt != 15 {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpSignExt16to32 {
 			break
 		}
-		v_1_0_0_0_1 := v_1_0_0_0.Args[1]
-		if v_1_0_0_0_1.Op != OpConst64 {
+		if x != mul_0.Args[0] {
 			break
 		}
-		if v_1_0_0_0_1.Type != typ.UInt64 {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst32 {
 			break
 		}
-		kbar := v_1_0_0_0_1.AuxInt
-		if n != v_1_0_0.Args[1] {
+		m := mul_1.AuxInt
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
 			break
 		}
-		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		s := v_1_1_0_1.AuxInt
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpRsh32x64 {
 			break
 		}
-		if v_1_0_1.Type != typ.UInt64 {
+		_ = v_1_1_1.Args[1]
+		v_1_1_1_0 := v_1_1_1.Args[0]
+		if v_1_1_1_0.Op != OpSignExt16to32 {
 			break
 		}
-		k := v_1_0_1.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst64 {
+		if x != v_1_1_1_0.Args[0] {
 			break
 		}
-		if v_1_1.Type != typ.UInt64 {
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
 			break
 		}
-		if v_1_1.AuxInt != k {
+		if v_1_1_1_1.AuxInt != 31 {
 			break
 		}
-		if !(k > 0 && k < 15 && kbar == 16-k) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(16, c).m) && s == 16+smagic(16, c).s && x.Op != OpConst16 && sdivisibleOK(16, c)) {
 			break
 		}
-		v.reset(OpEq16)
-		v0 := b.NewValue0(v.Pos, OpAnd16, t)
-		v0.AddArg(n)
-		v1 := b.NewValue0(v.Pos, OpConst16, t)
-		v1.AuxInt = int64(1<<uint(k) - 1)
+		v.reset(OpLeq16U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft16, typ.UInt16)
+		v1 := b.NewValue0(v.Pos, OpAdd16, typ.UInt16)
+		v2 := b.NewValue0(v.Pos, OpMul16, typ.UInt16)
+		v3 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v3.AuxInt = int64(int16(sdivisible(16, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v4.AuxInt = int64(int16(sdivisible(16, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v5.AuxInt = int64(16 - sdivisible(16, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v2 := b.NewValue0(v.Pos, OpConst16, t)
-		v2.AuxInt = 0
-		v.AddArg(v2)
+		v6 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v6.AuxInt = int64(int16(sdivisible(16, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq16 (Lsh16x64 (Rsh16x64 (Add16 <t> n (Rsh16Ux64 <t> (Rsh16x64 <t> n (Const64 <typ.UInt64> [15])) (Const64 <typ.UInt64> [kbar]))) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])) n)
-	// cond: k > 0 && k < 15 && kbar == 16 - k
-	// result: (Eq16 (And16 <t> n (Const16 <t> [int64(1<<uint(k)-1)])) (Const16 <t> [0]))
+	// match: (Eq16 x (Mul16 (Sub16 (Rsh32x64 mul:(Mul32 (Const32 [m]) (SignExt16to32 x)) (Const64 [s])) (Rsh32x64 (SignExt16to32 x) (Const64 [31]))) (Const16 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(16,c).m) && s == 16+smagic(16,c).s && x.Op != OpConst16 && sdivisibleOK(16,c)
+	// result: (Leq16U (RotateLeft16 <typ.UInt16> (Add16 <typ.UInt16> (Mul16 <typ.UInt16> (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).m))]) x) (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).a))]) ) (Const16 <typ.UInt16> [int64(16-sdivisible(16,c).k)]) ) (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).max))]) )
 	for {
-		n := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpLsh16x64 {
-			break
-		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh16x64 {
-			break
-		}
-		_ = v_0_0.Args[1]
-		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpAdd16 {
-			break
-		}
-		t := v_0_0_0.Type
-		_ = v_0_0_0.Args[1]
-		if n != v_0_0_0.Args[0] {
-			break
-		}
-		v_0_0_0_1 := v_0_0_0.Args[1]
-		if v_0_0_0_1.Op != OpRsh16Ux64 {
-			break
-		}
-		if v_0_0_0_1.Type != t {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul16 {
 			break
 		}
-		_ = v_0_0_0_1.Args[1]
-		v_0_0_0_1_0 := v_0_0_0_1.Args[0]
-		if v_0_0_0_1_0.Op != OpRsh16x64 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpSub16 {
 			break
 		}
-		if v_0_0_0_1_0.Type != t {
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh32x64 {
 			break
 		}
-		_ = v_0_0_0_1_0.Args[1]
-		if n != v_0_0_0_1_0.Args[0] {
+		_ = v_1_0_0.Args[1]
+		mul := v_1_0_0.Args[0]
+		if mul.Op != OpMul32 {
 			break
 		}
-		v_0_0_0_1_0_1 := v_0_0_0_1_0.Args[1]
-		if v_0_0_0_1_0_1.Op != OpConst64 {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst32 {
 			break
 		}
-		if v_0_0_0_1_0_1.Type != typ.UInt64 {
+		m := mul_0.AuxInt
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpSignExt16to32 {
 			break
 		}
-		if v_0_0_0_1_0_1.AuxInt != 15 {
+		if x != mul_1.Args[0] {
 			break
 		}
-		v_0_0_0_1_1 := v_0_0_0_1.Args[1]
-		if v_0_0_0_1_1.Op != OpConst64 {
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
 			break
 		}
-		if v_0_0_0_1_1.Type != typ.UInt64 {
+		s := v_1_0_0_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpRsh32x64 {
 			break
 		}
-		kbar := v_0_0_0_1_1.AuxInt
-		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
+		_ = v_1_0_1.Args[1]
+		v_1_0_1_0 := v_1_0_1.Args[0]
+		if v_1_0_1_0.Op != OpSignExt16to32 {
 			break
 		}
-		if v_0_0_1.Type != typ.UInt64 {
+		if x != v_1_0_1_0.Args[0] {
 			break
 		}
-		k := v_0_0_1.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst64 {
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
 			break
 		}
-		if v_0_1.Type != typ.UInt64 {
+		if v_1_0_1_1.AuxInt != 31 {
 			break
 		}
-		if v_0_1.AuxInt != k {
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst16 {
 			break
 		}
-		if !(k > 0 && k < 15 && kbar == 16-k) {
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(16, c).m) && s == 16+smagic(16, c).s && x.Op != OpConst16 && sdivisibleOK(16, c)) {
 			break
 		}
-		v.reset(OpEq16)
-		v0 := b.NewValue0(v.Pos, OpAnd16, t)
-		v0.AddArg(n)
-		v1 := b.NewValue0(v.Pos, OpConst16, t)
-		v1.AuxInt = int64(1<<uint(k) - 1)
+		v.reset(OpLeq16U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft16, typ.UInt16)
+		v1 := b.NewValue0(v.Pos, OpAdd16, typ.UInt16)
+		v2 := b.NewValue0(v.Pos, OpMul16, typ.UInt16)
+		v3 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v3.AuxInt = int64(int16(sdivisible(16, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v4.AuxInt = int64(int16(sdivisible(16, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v5.AuxInt = int64(16 - sdivisible(16, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v2 := b.NewValue0(v.Pos, OpConst16, t)
-		v2.AuxInt = 0
-		v.AddArg(v2)
+		v6 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v6.AuxInt = int64(int16(sdivisible(16, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq16 (Lsh16x64 (Rsh16x64 (Add16 <t> (Rsh16Ux64 <t> (Rsh16x64 <t> n (Const64 <typ.UInt64> [15])) (Const64 <typ.UInt64> [kbar])) n) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])) n)
-	// cond: k > 0 && k < 15 && kbar == 16 - k
-	// result: (Eq16 (And16 <t> n (Const16 <t> [int64(1<<uint(k)-1)])) (Const16 <t> [0]))
+	// match: (Eq16 x (Mul16 (Sub16 (Rsh32x64 mul:(Mul32 (SignExt16to32 x) (Const32 [m])) (Const64 [s])) (Rsh32x64 (SignExt16to32 x) (Const64 [31]))) (Const16 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(16,c).m) && s == 16+smagic(16,c).s && x.Op != OpConst16 && sdivisibleOK(16,c)
+	// result: (Leq16U (RotateLeft16 <typ.UInt16> (Add16 <typ.UInt16> (Mul16 <typ.UInt16> (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).m))]) x) (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).a))]) ) (Const16 <typ.UInt16> [int64(16-sdivisible(16,c).k)]) ) (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).max))]) )
 	for {
-		n := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpLsh16x64 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul16 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh16x64 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpSub16 {
 			break
 		}
-		_ = v_0_0.Args[1]
-		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpAdd16 {
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh32x64 {
 			break
 		}
-		t := v_0_0_0.Type
-		_ = v_0_0_0.Args[1]
-		v_0_0_0_0 := v_0_0_0.Args[0]
-		if v_0_0_0_0.Op != OpRsh16Ux64 {
+		_ = v_1_0_0.Args[1]
+		mul := v_1_0_0.Args[0]
+		if mul.Op != OpMul32 {
 			break
 		}
-		if v_0_0_0_0.Type != t {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpSignExt16to32 {
 			break
 		}
-		_ = v_0_0_0_0.Args[1]
-		v_0_0_0_0_0 := v_0_0_0_0.Args[0]
-		if v_0_0_0_0_0.Op != OpRsh16x64 {
+		if x != mul_0.Args[0] {
 			break
 		}
-		if v_0_0_0_0_0.Type != t {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst32 {
 			break
 		}
-		_ = v_0_0_0_0_0.Args[1]
-		if n != v_0_0_0_0_0.Args[0] {
+		m := mul_1.AuxInt
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
 			break
 		}
-		v_0_0_0_0_0_1 := v_0_0_0_0_0.Args[1]
-		if v_0_0_0_0_0_1.Op != OpConst64 {
+		s := v_1_0_0_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpRsh32x64 {
 			break
 		}
-		if v_0_0_0_0_0_1.Type != typ.UInt64 {
+		_ = v_1_0_1.Args[1]
+		v_1_0_1_0 := v_1_0_1.Args[0]
+		if v_1_0_1_0.Op != OpSignExt16to32 {
 			break
 		}
-		if v_0_0_0_0_0_1.AuxInt != 15 {
+		if x != v_1_0_1_0.Args[0] {
 			break
 		}
-		v_0_0_0_0_1 := v_0_0_0_0.Args[1]
-		if v_0_0_0_0_1.Op != OpConst64 {
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
 			break
 		}
-		if v_0_0_0_0_1.Type != typ.UInt64 {
+		if v_1_0_1_1.AuxInt != 31 {
 			break
 		}
-		kbar := v_0_0_0_0_1.AuxInt
-		if n != v_0_0_0.Args[1] {
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst16 {
 			break
 		}
-		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(16, c).m) && s == 16+smagic(16, c).s && x.Op != OpConst16 && sdivisibleOK(16, c)) {
 			break
 		}
-		if v_0_0_1.Type != typ.UInt64 {
+		v.reset(OpLeq16U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft16, typ.UInt16)
+		v1 := b.NewValue0(v.Pos, OpAdd16, typ.UInt16)
+		v2 := b.NewValue0(v.Pos, OpMul16, typ.UInt16)
+		v3 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v3.AuxInt = int64(int16(sdivisible(16, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v4.AuxInt = int64(int16(sdivisible(16, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v5.AuxInt = int64(16 - sdivisible(16, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v6.AuxInt = int64(int16(sdivisible(16, c).max))
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq16 (Mul16 (Const16 [c]) (Sub16 (Rsh32x64 mul:(Mul32 (Const32 [m]) (SignExt16to32 x)) (Const64 [s])) (Rsh32x64 (SignExt16to32 x) (Const64 [31])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(16,c).m) && s == 16+smagic(16,c).s && x.Op != OpConst16 && sdivisibleOK(16,c)
+	// result: (Leq16U (RotateLeft16 <typ.UInt16> (Add16 <typ.UInt16> (Mul16 <typ.UInt16> (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).m))]) x) (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).a))]) ) (Const16 <typ.UInt16> [int64(16-sdivisible(16,c).k)]) ) (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).max))]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul16 {
 			break
 		}
-		k := v_0_0_1.AuxInt
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst16 {
+			break
+		}
+		c := v_0_0.AuxInt
 		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst64 {
+		if v_0_1.Op != OpSub16 {
 			break
 		}
-		if v_0_1.Type != typ.UInt64 {
+		_ = v_0_1.Args[1]
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh32x64 {
 			break
 		}
-		if v_0_1.AuxInt != k {
+		_ = v_0_1_0.Args[1]
+		mul := v_0_1_0.Args[0]
+		if mul.Op != OpMul32 {
 			break
 		}
-		if !(k > 0 && k < 15 && kbar == 16-k) {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst32 {
 			break
 		}
-		v.reset(OpEq16)
-		v0 := b.NewValue0(v.Pos, OpAnd16, t)
-		v0.AddArg(n)
-		v1 := b.NewValue0(v.Pos, OpConst16, t)
-		v1.AuxInt = int64(1<<uint(k) - 1)
-		v0.AddArg(v1)
-		v.AddArg(v0)
-		v2 := b.NewValue0(v.Pos, OpConst16, t)
-		v2.AuxInt = 0
-		v.AddArg(v2)
-		return true
-	}
-	// match: (Eq16 s:(Sub16 x y) (Const16 [0]))
-	// cond: s.Uses == 1
-	// result: (Eq16 x y)
-	for {
-		_ = v.Args[1]
-		s := v.Args[0]
-		if s.Op != OpSub16 {
+		m := mul_0.AuxInt
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpSignExt16to32 {
 			break
 		}
-		y := s.Args[1]
-		x := s.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst16 {
+		if x != mul_1.Args[0] {
 			break
 		}
-		if v_1.AuxInt != 0 {
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
 			break
 		}
-		if !(s.Uses == 1) {
+		s := v_0_1_0_1.AuxInt
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpRsh32x64 {
 			break
 		}
-		v.reset(OpEq16)
-		v.AddArg(x)
-		v.AddArg(y)
-		return true
-	}
-	// match: (Eq16 (Const16 [0]) s:(Sub16 x y))
-	// cond: s.Uses == 1
-	// result: (Eq16 x y)
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst16 {
+		_ = v_0_1_1.Args[1]
+		v_0_1_1_0 := v_0_1_1.Args[0]
+		if v_0_1_1_0.Op != OpSignExt16to32 {
 			break
 		}
-		if v_0.AuxInt != 0 {
+		if x != v_0_1_1_0.Args[0] {
 			break
 		}
-		s := v.Args[1]
-		if s.Op != OpSub16 {
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
 			break
 		}
-		y := s.Args[1]
-		x := s.Args[0]
-		if !(s.Uses == 1) {
+		if v_0_1_1_1.AuxInt != 31 {
 			break
 		}
-		v.reset(OpEq16)
-		v.AddArg(x)
-		v.AddArg(y)
-		return true
-	}
-	return false
-}
-func rewriteValuegeneric_OpEq32_0(v *Value) bool {
-	b := v.Block
-	typ := &b.Func.Config.Types
-	// match: (Eq32 x x)
-	// cond:
-	// result: (ConstBool [1])
-	for {
-		x := v.Args[1]
-		if x != v.Args[0] {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(16, c).m) && s == 16+smagic(16, c).s && x.Op != OpConst16 && sdivisibleOK(16, c)) {
 			break
 		}
-		v.reset(OpConstBool)
-		v.AuxInt = 1
+		v.reset(OpLeq16U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft16, typ.UInt16)
+		v1 := b.NewValue0(v.Pos, OpAdd16, typ.UInt16)
+		v2 := b.NewValue0(v.Pos, OpMul16, typ.UInt16)
+		v3 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v3.AuxInt = int64(int16(sdivisible(16, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v4.AuxInt = int64(int16(sdivisible(16, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v5.AuxInt = int64(16 - sdivisible(16, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v6.AuxInt = int64(int16(sdivisible(16, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq32 (Const32 <t> [c]) (Add32 (Const32 <t> [d]) x))
-	// cond:
-	// result: (Eq32 (Const32 <t> [int64(int32(c-d))]) x)
+	// match: (Eq16 (Mul16 (Const16 [c]) (Sub16 (Rsh32x64 mul:(Mul32 (SignExt16to32 x) (Const32 [m])) (Const64 [s])) (Rsh32x64 (SignExt16to32 x) (Const64 [31])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(16,c).m) && s == 16+smagic(16,c).s && x.Op != OpConst16 && sdivisibleOK(16,c)
+	// result: (Leq16U (RotateLeft16 <typ.UInt16> (Add16 <typ.UInt16> (Mul16 <typ.UInt16> (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).m))]) x) (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).a))]) ) (Const16 <typ.UInt16> [int64(16-sdivisible(16,c).k)]) ) (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).max))]) )
 	for {
-		_ = v.Args[1]
+		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpConst32 {
+		if v_0.Op != OpMul16 {
 			break
 		}
-		t := v_0.Type
-		c := v_0.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpAdd32 {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst16 {
 			break
 		}
-		x := v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst32 {
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpSub16 {
 			break
 		}
-		if v_1_0.Type != t {
+		_ = v_0_1.Args[1]
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh32x64 {
 			break
 		}
-		d := v_1_0.AuxInt
-		v.reset(OpEq32)
-		v0 := b.NewValue0(v.Pos, OpConst32, t)
-		v0.AuxInt = int64(int32(c - d))
-		v.AddArg(v0)
-		v.AddArg(x)
-		return true
-	}
-	// match: (Eq32 (Const32 <t> [c]) (Add32 x (Const32 <t> [d])))
-	// cond:
-	// result: (Eq32 (Const32 <t> [int64(int32(c-d))]) x)
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst32 {
+		_ = v_0_1_0.Args[1]
+		mul := v_0_1_0.Args[0]
+		if mul.Op != OpMul32 {
 			break
 		}
-		t := v_0.Type
-		c := v_0.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpAdd32 {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpSignExt16to32 {
 			break
 		}
-		_ = v_1.Args[1]
-		x := v_1.Args[0]
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst32 {
+		if x != mul_0.Args[0] {
 			break
 		}
-		if v_1_1.Type != t {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst32 {
 			break
 		}
-		d := v_1_1.AuxInt
-		v.reset(OpEq32)
-		v0 := b.NewValue0(v.Pos, OpConst32, t)
-		v0.AuxInt = int64(int32(c - d))
-		v.AddArg(v0)
-		v.AddArg(x)
-		return true
-	}
-	// match: (Eq32 (Add32 (Const32 <t> [d]) x) (Const32 <t> [c]))
-	// cond:
-	// result: (Eq32 (Const32 <t> [int64(int32(c-d))]) x)
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpAdd32 {
+		m := mul_1.AuxInt
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
 			break
 		}
-		x := v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst32 {
+		s := v_0_1_0_1.AuxInt
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpRsh32x64 {
 			break
 		}
-		t := v_0_0.Type
-		d := v_0_0.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst32 {
+		_ = v_0_1_1.Args[1]
+		v_0_1_1_0 := v_0_1_1.Args[0]
+		if v_0_1_1_0.Op != OpSignExt16to32 {
 			break
 		}
-		if v_1.Type != t {
+		if x != v_0_1_1_0.Args[0] {
 			break
 		}
-		c := v_1.AuxInt
-		v.reset(OpEq32)
-		v0 := b.NewValue0(v.Pos, OpConst32, t)
-		v0.AuxInt = int64(int32(c - d))
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 31 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(16, c).m) && s == 16+smagic(16, c).s && x.Op != OpConst16 && sdivisibleOK(16, c)) {
+			break
+		}
+		v.reset(OpLeq16U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft16, typ.UInt16)
+		v1 := b.NewValue0(v.Pos, OpAdd16, typ.UInt16)
+		v2 := b.NewValue0(v.Pos, OpMul16, typ.UInt16)
+		v3 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v3.AuxInt = int64(int16(sdivisible(16, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v4.AuxInt = int64(int16(sdivisible(16, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v5.AuxInt = int64(16 - sdivisible(16, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v.AddArg(x)
+		v6 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v6.AuxInt = int64(int16(sdivisible(16, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq32 (Add32 x (Const32 <t> [d])) (Const32 <t> [c]))
-	// cond:
-	// result: (Eq32 (Const32 <t> [int64(int32(c-d))]) x)
+	// match: (Eq16 (Mul16 (Sub16 (Rsh32x64 mul:(Mul32 (Const32 [m]) (SignExt16to32 x)) (Const64 [s])) (Rsh32x64 (SignExt16to32 x) (Const64 [31]))) (Const16 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(16,c).m) && s == 16+smagic(16,c).s && x.Op != OpConst16 && sdivisibleOK(16,c)
+	// result: (Leq16U (RotateLeft16 <typ.UInt16> (Add16 <typ.UInt16> (Mul16 <typ.UInt16> (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).m))]) x) (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).a))]) ) (Const16 <typ.UInt16> [int64(16-sdivisible(16,c).k)]) ) (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).max))]) )
 	for {
-		_ = v.Args[1]
+		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpAdd32 {
+		if v_0.Op != OpMul16 {
 			break
 		}
 		_ = v_0.Args[1]
-		x := v_0.Args[0]
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst32 {
-			break
-		}
-		t := v_0_1.Type
-		d := v_0_1.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst32 {
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpSub16 {
 			break
 		}
-		if v_1.Type != t {
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh32x64 {
 			break
 		}
-		c := v_1.AuxInt
-		v.reset(OpEq32)
-		v0 := b.NewValue0(v.Pos, OpConst32, t)
-		v0.AuxInt = int64(int32(c - d))
-		v.AddArg(v0)
-		v.AddArg(x)
-		return true
-	}
-	// match: (Eq32 (Const32 [c]) (Const32 [d]))
-	// cond:
-	// result: (ConstBool [b2i(c == d)])
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst32 {
+		_ = v_0_0_0.Args[1]
+		mul := v_0_0_0.Args[0]
+		if mul.Op != OpMul32 {
 			break
 		}
-		c := v_0.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst32 {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst32 {
 			break
 		}
-		d := v_1.AuxInt
-		v.reset(OpConstBool)
-		v.AuxInt = b2i(c == d)
-		return true
-	}
-	// match: (Eq32 (Const32 [d]) (Const32 [c]))
-	// cond:
-	// result: (ConstBool [b2i(c == d)])
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst32 {
+		m := mul_0.AuxInt
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpSignExt16to32 {
 			break
 		}
-		d := v_0.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst32 {
+		if x != mul_1.Args[0] {
 			break
 		}
-		c := v_1.AuxInt
-		v.reset(OpConstBool)
-		v.AuxInt = b2i(c == d)
-		return true
-	}
-	// match: (Eq32 x (Mul32 (Const32 [c]) (Rsh32Ux64 mul:(Hmul32u (Const32 [m]) x) (Const64 [s]))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32,c).m/2)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
-	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
-	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst32 {
+		s := v_0_0_0_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpRsh32x64 {
 			break
 		}
-		c := v_1_0.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpRsh32Ux64 {
+		_ = v_0_0_1.Args[1]
+		v_0_0_1_0 := v_0_0_1.Args[0]
+		if v_0_0_1_0.Op != OpSignExt16to32 {
 			break
 		}
-		_ = v_1_1.Args[1]
-		mul := v_1_1.Args[0]
-		if mul.Op != OpHmul32u {
+		if x != v_0_0_1_0.Args[0] {
 			break
 		}
-		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst32 {
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
 			break
 		}
-		m := mul_0.AuxInt
-		if x != mul.Args[1] {
+		if v_0_0_1_1.AuxInt != 31 {
 			break
 		}
-		v_1_1_1 := v_1_1.Args[1]
-		if v_1_1_1.Op != OpConst64 {
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst16 {
 			break
 		}
-		s := v_1_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32, c).m/2)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(16, c).m) && s == 16+smagic(16, c).s && x.Op != OpConst16 && sdivisibleOK(16, c)) {
 			break
 		}
-		v.reset(OpLeq32U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
-		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
-		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v2.AuxInt = int64(int32(udivisible(32, c).m))
+		v.reset(OpLeq16U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft16, typ.UInt16)
+		v1 := b.NewValue0(v.Pos, OpAdd16, typ.UInt16)
+		v2 := b.NewValue0(v.Pos, OpMul16, typ.UInt16)
+		v3 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v3.AuxInt = int64(int16(sdivisible(16, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v4.AuxInt = int64(int16(sdivisible(16, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v3.AuxInt = int64(32 - udivisible(32, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v5.AuxInt = int64(16 - sdivisible(16, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v4.AuxInt = int64(int32(udivisible(32, c).max))
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v6.AuxInt = int64(int16(sdivisible(16, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Const32 [c]) (Rsh32Ux64 mul:(Hmul32u x (Const32 [m])) (Const64 [s]))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32,c).m/2)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
-	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
-	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
+	return false
+}
+func rewriteValuegeneric_OpEq16_50(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
+	// match: (Eq16 (Mul16 (Sub16 (Rsh32x64 mul:(Mul32 (SignExt16to32 x) (Const32 [m])) (Const64 [s])) (Rsh32x64 (SignExt16to32 x) (Const64 [31]))) (Const16 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(16,c).m) && s == 16+smagic(16,c).s && x.Op != OpConst16 && sdivisibleOK(16,c)
+	// result: (Leq16U (RotateLeft16 <typ.UInt16> (Add16 <typ.UInt16> (Mul16 <typ.UInt16> (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).m))]) x) (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).a))]) ) (Const16 <typ.UInt16> [int64(16-sdivisible(16,c).k)]) ) (Const16 <typ.UInt16> [int64(int16(sdivisible(16,c).max))]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul16 {
 			break
 		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst32 {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpSub16 {
 			break
 		}
-		c := v_1_0.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpRsh32Ux64 {
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh32x64 {
 			break
 		}
-		_ = v_1_1.Args[1]
-		mul := v_1_1.Args[0]
-		if mul.Op != OpHmul32u {
+		_ = v_0_0_0.Args[1]
+		mul := v_0_0_0.Args[0]
+		if mul.Op != OpMul32 {
 			break
 		}
 		_ = mul.Args[1]
-		if x != mul.Args[0] {
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpSignExt16to32 {
+			break
+		}
+		if x != mul_0.Args[0] {
 			break
 		}
 		mul_1 := mul.Args[1]
@@ -12181,703 +12241,693 @@ func rewriteValuegeneric_OpEq32_0(v *Value) bool {
 			break
 		}
 		m := mul_1.AuxInt
-		v_1_1_1 := v_1_1.Args[1]
-		if v_1_1_1.Op != OpConst64 {
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32, c).m/2)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		s := v_0_0_0_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpRsh32x64 {
 			break
 		}
-		v.reset(OpLeq32U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
-		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
-		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v2.AuxInt = int64(int32(udivisible(32, c).m))
+		_ = v_0_0_1.Args[1]
+		v_0_0_1_0 := v_0_0_1.Args[0]
+		if v_0_0_1_0.Op != OpSignExt16to32 {
+			break
+		}
+		if x != v_0_0_1_0.Args[0] {
+			break
+		}
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1_1.AuxInt != 31 {
+			break
+		}
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst16 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(16, c).m) && s == 16+smagic(16, c).s && x.Op != OpConst16 && sdivisibleOK(16, c)) {
+			break
+		}
+		v.reset(OpLeq16U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft16, typ.UInt16)
+		v1 := b.NewValue0(v.Pos, OpAdd16, typ.UInt16)
+		v2 := b.NewValue0(v.Pos, OpMul16, typ.UInt16)
+		v3 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v3.AuxInt = int64(int16(sdivisible(16, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v4.AuxInt = int64(int16(sdivisible(16, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v3.AuxInt = int64(32 - udivisible(32, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v5.AuxInt = int64(16 - sdivisible(16, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v4.AuxInt = int64(int32(udivisible(32, c).max))
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst16, typ.UInt16)
+		v6.AuxInt = int64(int16(sdivisible(16, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Rsh32Ux64 mul:(Hmul32u (Const32 [m]) x) (Const64 [s])) (Const32 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32,c).m/2)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
-	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
+	// match: (Eq16 n (Lsh16x64 (Rsh16x64 (Add16 <t> n (Rsh16Ux64 <t> (Rsh16x64 <t> n (Const64 <typ.UInt64> [15])) (Const64 <typ.UInt64> [kbar]))) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])))
+	// cond: k > 0 && k < 15 && kbar == 16 - k
+	// result: (Eq16 (And16 <t> n (Const16 <t> [int64(1<<uint(k)-1)])) (Const16 <t> [0]))
 	for {
 		_ = v.Args[1]
-		x := v.Args[0]
+		n := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
+		if v_1.Op != OpLsh16x64 {
 			break
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh32Ux64 {
+		if v_1_0.Op != OpRsh16x64 {
 			break
 		}
 		_ = v_1_0.Args[1]
-		mul := v_1_0.Args[0]
-		if mul.Op != OpHmul32u {
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpAdd16 {
 			break
 		}
-		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst32 {
+		t := v_1_0_0.Type
+		_ = v_1_0_0.Args[1]
+		if n != v_1_0_0.Args[0] {
 			break
 		}
-		m := mul_0.AuxInt
-		if x != mul.Args[1] {
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpRsh16Ux64 {
 			break
 		}
-		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		if v_1_0_0_1.Type != t {
 			break
 		}
-		s := v_1_0_1.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst32 {
+		_ = v_1_0_0_1.Args[1]
+		v_1_0_0_1_0 := v_1_0_0_1.Args[0]
+		if v_1_0_0_1_0.Op != OpRsh16x64 {
 			break
 		}
-		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32, c).m/2)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		if v_1_0_0_1_0.Type != t {
 			break
 		}
-		v.reset(OpLeq32U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
-		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
-		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v2.AuxInt = int64(int32(udivisible(32, c).m))
-		v1.AddArg(v2)
-		v1.AddArg(x)
-		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v3.AuxInt = int64(32 - udivisible(32, c).k)
-		v0.AddArg(v3)
-		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v4.AuxInt = int64(int32(udivisible(32, c).max))
-		v.AddArg(v4)
-		return true
-	}
-	return false
-}
-func rewriteValuegeneric_OpEq32_10(v *Value) bool {
-	b := v.Block
-	typ := &b.Func.Config.Types
-	// match: (Eq32 x (Mul32 (Rsh32Ux64 mul:(Hmul32u x (Const32 [m])) (Const64 [s])) (Const32 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32,c).m/2)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
-	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
-	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
+		_ = v_1_0_0_1_0.Args[1]
+		if n != v_1_0_0_1_0.Args[0] {
 			break
 		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh32Ux64 {
+		v_1_0_0_1_0_1 := v_1_0_0_1_0.Args[1]
+		if v_1_0_0_1_0_1.Op != OpConst64 {
 			break
 		}
-		_ = v_1_0.Args[1]
-		mul := v_1_0.Args[0]
-		if mul.Op != OpHmul32u {
+		if v_1_0_0_1_0_1.Type != typ.UInt64 {
 			break
 		}
-		_ = mul.Args[1]
-		if x != mul.Args[0] {
+		if v_1_0_0_1_0_1.AuxInt != 15 {
 			break
 		}
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst32 {
+		v_1_0_0_1_1 := v_1_0_0_1.Args[1]
+		if v_1_0_0_1_1.Op != OpConst64 {
 			break
 		}
-		m := mul_1.AuxInt
+		if v_1_0_0_1_1.Type != typ.UInt64 {
+			break
+		}
+		kbar := v_1_0_0_1_1.AuxInt
 		v_1_0_1 := v_1_0.Args[1]
 		if v_1_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_0_1.AuxInt
+		if v_1_0_1.Type != typ.UInt64 {
+			break
+		}
+		k := v_1_0_1.AuxInt
 		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst32 {
+		if v_1_1.Op != OpConst64 {
 			break
 		}
-		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32, c).m/2)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		if v_1_1.Type != typ.UInt64 {
 			break
 		}
-		v.reset(OpLeq32U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
-		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
-		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v2.AuxInt = int64(int32(udivisible(32, c).m))
-		v1.AddArg(v2)
-		v1.AddArg(x)
+		if v_1_1.AuxInt != k {
+			break
+		}
+		if !(k > 0 && k < 15 && kbar == 16-k) {
+			break
+		}
+		v.reset(OpEq16)
+		v0 := b.NewValue0(v.Pos, OpAnd16, t)
+		v0.AddArg(n)
+		v1 := b.NewValue0(v.Pos, OpConst16, t)
+		v1.AuxInt = int64(1<<uint(k) - 1)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v3.AuxInt = int64(32 - udivisible(32, c).k)
-		v0.AddArg(v3)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v4.AuxInt = int64(int32(udivisible(32, c).max))
-		v.AddArg(v4)
+		v2 := b.NewValue0(v.Pos, OpConst16, t)
+		v2.AuxInt = 0
+		v.AddArg(v2)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Const32 [c]) (Rsh32Ux64 mul:(Hmul32u (Const32 [m]) x) (Const64 [s]))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32,c).m/2)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
-	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
+	// match: (Eq16 n (Lsh16x64 (Rsh16x64 (Add16 <t> (Rsh16Ux64 <t> (Rsh16x64 <t> n (Const64 <typ.UInt64> [15])) (Const64 <typ.UInt64> [kbar])) n) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])))
+	// cond: k > 0 && k < 15 && kbar == 16 - k
+	// result: (Eq16 (And16 <t> n (Const16 <t> [int64(1<<uint(k)-1)])) (Const16 <t> [0]))
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v.Args[1]
+		n := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpLsh16x64 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst32 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh16x64 {
 			break
 		}
-		c := v_0_0.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpRsh32Ux64 {
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpAdd16 {
 			break
 		}
-		_ = v_0_1.Args[1]
-		mul := v_0_1.Args[0]
-		if mul.Op != OpHmul32u {
+		t := v_1_0_0.Type
+		_ = v_1_0_0.Args[1]
+		v_1_0_0_0 := v_1_0_0.Args[0]
+		if v_1_0_0_0.Op != OpRsh16Ux64 {
 			break
 		}
-		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst32 {
+		if v_1_0_0_0.Type != t {
 			break
 		}
-		m := mul_0.AuxInt
-		if x != mul.Args[1] {
+		_ = v_1_0_0_0.Args[1]
+		v_1_0_0_0_0 := v_1_0_0_0.Args[0]
+		if v_1_0_0_0_0.Op != OpRsh16x64 {
 			break
 		}
-		v_0_1_1 := v_0_1.Args[1]
-		if v_0_1_1.Op != OpConst64 {
+		if v_1_0_0_0_0.Type != t {
 			break
 		}
-		s := v_0_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32, c).m/2)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		_ = v_1_0_0_0_0.Args[1]
+		if n != v_1_0_0_0_0.Args[0] {
 			break
 		}
-		v.reset(OpLeq32U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
-		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
-		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v2.AuxInt = int64(int32(udivisible(32, c).m))
-		v1.AddArg(v2)
-		v1.AddArg(x)
-		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v3.AuxInt = int64(32 - udivisible(32, c).k)
-		v0.AddArg(v3)
-		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v4.AuxInt = int64(int32(udivisible(32, c).max))
-		v.AddArg(v4)
-		return true
-	}
-	// match: (Eq32 (Mul32 (Const32 [c]) (Rsh32Ux64 mul:(Hmul32u x (Const32 [m])) (Const64 [s]))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32,c).m/2)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
-	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
-	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		v_1_0_0_0_0_1 := v_1_0_0_0_0.Args[1]
+		if v_1_0_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst32 {
+		if v_1_0_0_0_0_1.Type != typ.UInt64 {
 			break
 		}
-		c := v_0_0.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpRsh32Ux64 {
+		if v_1_0_0_0_0_1.AuxInt != 15 {
 			break
 		}
-		_ = v_0_1.Args[1]
-		mul := v_0_1.Args[0]
-		if mul.Op != OpHmul32u {
+		v_1_0_0_0_1 := v_1_0_0_0.Args[1]
+		if v_1_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		_ = mul.Args[1]
-		if x != mul.Args[0] {
+		if v_1_0_0_0_1.Type != typ.UInt64 {
 			break
 		}
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst32 {
+		kbar := v_1_0_0_0_1.AuxInt
+		if n != v_1_0_0.Args[1] {
 			break
 		}
-		m := mul_1.AuxInt
-		v_0_1_1 := v_0_1.Args[1]
-		if v_0_1_1.Op != OpConst64 {
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32, c).m/2)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		if v_1_0_1.Type != typ.UInt64 {
 			break
 		}
-		v.reset(OpLeq32U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
-		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
-		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v2.AuxInt = int64(int32(udivisible(32, c).m))
-		v1.AddArg(v2)
-		v1.AddArg(x)
+		k := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1.Type != typ.UInt64 {
+			break
+		}
+		if v_1_1.AuxInt != k {
+			break
+		}
+		if !(k > 0 && k < 15 && kbar == 16-k) {
+			break
+		}
+		v.reset(OpEq16)
+		v0 := b.NewValue0(v.Pos, OpAnd16, t)
+		v0.AddArg(n)
+		v1 := b.NewValue0(v.Pos, OpConst16, t)
+		v1.AuxInt = int64(1<<uint(k) - 1)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v3.AuxInt = int64(32 - udivisible(32, c).k)
-		v0.AddArg(v3)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v4.AuxInt = int64(int32(udivisible(32, c).max))
-		v.AddArg(v4)
+		v2 := b.NewValue0(v.Pos, OpConst16, t)
+		v2.AuxInt = 0
+		v.AddArg(v2)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Rsh32Ux64 mul:(Hmul32u (Const32 [m]) x) (Const64 [s])) (Const32 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32,c).m/2)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
-	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
+	// match: (Eq16 (Lsh16x64 (Rsh16x64 (Add16 <t> n (Rsh16Ux64 <t> (Rsh16x64 <t> n (Const64 <typ.UInt64> [15])) (Const64 <typ.UInt64> [kbar]))) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])) n)
+	// cond: k > 0 && k < 15 && kbar == 16 - k
+	// result: (Eq16 (And16 <t> n (Const16 <t> [int64(1<<uint(k)-1)])) (Const16 <t> [0]))
 	for {
-		x := v.Args[1]
+		n := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		if v_0.Op != OpLsh16x64 {
 			break
 		}
 		_ = v_0.Args[1]
 		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh32Ux64 {
+		if v_0_0.Op != OpRsh16x64 {
 			break
 		}
 		_ = v_0_0.Args[1]
-		mul := v_0_0.Args[0]
-		if mul.Op != OpHmul32u {
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpAdd16 {
 			break
 		}
-		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst32 {
+		t := v_0_0_0.Type
+		_ = v_0_0_0.Args[1]
+		if n != v_0_0_0.Args[0] {
 			break
 		}
-		m := mul_0.AuxInt
-		if x != mul.Args[1] {
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpRsh16Ux64 {
 			break
 		}
-		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
+		if v_0_0_0_1.Type != t {
 			break
 		}
-		s := v_0_0_1.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst32 {
+		_ = v_0_0_0_1.Args[1]
+		v_0_0_0_1_0 := v_0_0_0_1.Args[0]
+		if v_0_0_0_1_0.Op != OpRsh16x64 {
 			break
 		}
-		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32, c).m/2)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		if v_0_0_0_1_0.Type != t {
 			break
 		}
-		v.reset(OpLeq32U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
-		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
-		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v2.AuxInt = int64(int32(udivisible(32, c).m))
-		v1.AddArg(v2)
-		v1.AddArg(x)
-		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v3.AuxInt = int64(32 - udivisible(32, c).k)
-		v0.AddArg(v3)
-		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v4.AuxInt = int64(int32(udivisible(32, c).max))
-		v.AddArg(v4)
-		return true
-	}
-	// match: (Eq32 (Mul32 (Rsh32Ux64 mul:(Hmul32u x (Const32 [m])) (Const64 [s])) (Const32 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32,c).m/2)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
-	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
-	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v_0_0_0_1_0.Args[1]
+		if n != v_0_0_0_1_0.Args[0] {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh32Ux64 {
+		v_0_0_0_1_0_1 := v_0_0_0_1_0.Args[1]
+		if v_0_0_0_1_0_1.Op != OpConst64 {
 			break
 		}
-		_ = v_0_0.Args[1]
-		mul := v_0_0.Args[0]
-		if mul.Op != OpHmul32u {
+		if v_0_0_0_1_0_1.Type != typ.UInt64 {
 			break
 		}
-		_ = mul.Args[1]
-		if x != mul.Args[0] {
+		if v_0_0_0_1_0_1.AuxInt != 15 {
 			break
 		}
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst32 {
+		v_0_0_0_1_1 := v_0_0_0_1.Args[1]
+		if v_0_0_0_1_1.Op != OpConst64 {
 			break
 		}
-		m := mul_1.AuxInt
+		if v_0_0_0_1_1.Type != typ.UInt64 {
+			break
+		}
+		kbar := v_0_0_0_1_1.AuxInt
 		v_0_0_1 := v_0_0.Args[1]
 		if v_0_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_0_1.AuxInt
+		if v_0_0_1.Type != typ.UInt64 {
+			break
+		}
+		k := v_0_0_1.AuxInt
 		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst32 {
+		if v_0_1.Op != OpConst64 {
 			break
 		}
-		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32, c).m/2)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		if v_0_1.Type != typ.UInt64 {
 			break
 		}
-		v.reset(OpLeq32U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
-		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
-		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v2.AuxInt = int64(int32(udivisible(32, c).m))
-		v1.AddArg(v2)
-		v1.AddArg(x)
+		if v_0_1.AuxInt != k {
+			break
+		}
+		if !(k > 0 && k < 15 && kbar == 16-k) {
+			break
+		}
+		v.reset(OpEq16)
+		v0 := b.NewValue0(v.Pos, OpAnd16, t)
+		v0.AddArg(n)
+		v1 := b.NewValue0(v.Pos, OpConst16, t)
+		v1.AuxInt = int64(1<<uint(k) - 1)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v3.AuxInt = int64(32 - udivisible(32, c).k)
-		v0.AddArg(v3)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v4.AuxInt = int64(int32(udivisible(32, c).max))
-		v.AddArg(v4)
+		v2 := b.NewValue0(v.Pos, OpConst16, t)
+		v2.AuxInt = 0
+		v.AddArg(v2)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Const32 [c]) (Rsh32Ux64 mul:(Hmul32u (Const32 <typ.UInt32> [m]) (Rsh32Ux64 x (Const64 [1]))) (Const64 [s]))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32,c).m+1)/2)) && s == umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
-	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
+	// match: (Eq16 (Lsh16x64 (Rsh16x64 (Add16 <t> (Rsh16Ux64 <t> (Rsh16x64 <t> n (Const64 <typ.UInt64> [15])) (Const64 <typ.UInt64> [kbar])) n) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])) n)
+	// cond: k > 0 && k < 15 && kbar == 16 - k
+	// result: (Eq16 (And16 <t> n (Const16 <t> [int64(1<<uint(k)-1)])) (Const16 <t> [0]))
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
+		n := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpLsh16x64 {
 			break
 		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst32 {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh16x64 {
 			break
 		}
-		c := v_1_0.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpRsh32Ux64 {
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpAdd16 {
 			break
 		}
-		_ = v_1_1.Args[1]
-		mul := v_1_1.Args[0]
-		if mul.Op != OpHmul32u {
+		t := v_0_0_0.Type
+		_ = v_0_0_0.Args[1]
+		v_0_0_0_0 := v_0_0_0.Args[0]
+		if v_0_0_0_0.Op != OpRsh16Ux64 {
 			break
 		}
-		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst32 {
+		if v_0_0_0_0.Type != t {
 			break
 		}
-		if mul_0.Type != typ.UInt32 {
+		_ = v_0_0_0_0.Args[1]
+		v_0_0_0_0_0 := v_0_0_0_0.Args[0]
+		if v_0_0_0_0_0.Op != OpRsh16x64 {
 			break
 		}
-		m := mul_0.AuxInt
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpRsh32Ux64 {
+		if v_0_0_0_0_0.Type != t {
 			break
 		}
-		_ = mul_1.Args[1]
-		if x != mul_1.Args[0] {
+		_ = v_0_0_0_0_0.Args[1]
+		if n != v_0_0_0_0_0.Args[0] {
 			break
 		}
-		mul_1_1 := mul_1.Args[1]
-		if mul_1_1.Op != OpConst64 {
-			break
+		v_0_0_0_0_0_1 := v_0_0_0_0_0.Args[1]
+		if v_0_0_0_0_0_1.Op != OpConst64 {
+			break
 		}
-		if mul_1_1.AuxInt != 1 {
+		if v_0_0_0_0_0_1.Type != typ.UInt64 {
 			break
 		}
-		v_1_1_1 := v_1_1.Args[1]
-		if v_1_1_1.Op != OpConst64 {
+		if v_0_0_0_0_0_1.AuxInt != 15 {
 			break
 		}
-		s := v_1_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32, c).m+1)/2)) && s == umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		v_0_0_0_0_1 := v_0_0_0_0.Args[1]
+		if v_0_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		v.reset(OpLeq32U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
-		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
-		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v2.AuxInt = int64(int32(udivisible(32, c).m))
-		v1.AddArg(v2)
-		v1.AddArg(x)
-		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v3.AuxInt = int64(32 - udivisible(32, c).k)
-		v0.AddArg(v3)
-		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v4.AuxInt = int64(int32(udivisible(32, c).max))
-		v.AddArg(v4)
-		return true
-	}
-	// match: (Eq32 x (Mul32 (Const32 [c]) (Rsh32Ux64 mul:(Hmul32u (Rsh32Ux64 x (Const64 [1])) (Const32 <typ.UInt32> [m])) (Const64 [s]))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32,c).m+1)/2)) && s == umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
-	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
-	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
+		if v_0_0_0_0_1.Type != typ.UInt64 {
 			break
 		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst32 {
+		kbar := v_0_0_0_0_1.AuxInt
+		if n != v_0_0_0.Args[1] {
 			break
 		}
-		c := v_1_0.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpRsh32Ux64 {
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
 			break
 		}
-		_ = v_1_1.Args[1]
-		mul := v_1_1.Args[0]
-		if mul.Op != OpHmul32u {
+		if v_0_0_1.Type != typ.UInt64 {
 			break
 		}
-		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpRsh32Ux64 {
+		k := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
 			break
 		}
-		_ = mul_0.Args[1]
-		if x != mul_0.Args[0] {
+		if v_0_1.Type != typ.UInt64 {
 			break
 		}
-		mul_0_1 := mul_0.Args[1]
-		if mul_0_1.Op != OpConst64 {
+		if v_0_1.AuxInt != k {
 			break
 		}
-		if mul_0_1.AuxInt != 1 {
+		if !(k > 0 && k < 15 && kbar == 16-k) {
 			break
 		}
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst32 {
+		v.reset(OpEq16)
+		v0 := b.NewValue0(v.Pos, OpAnd16, t)
+		v0.AddArg(n)
+		v1 := b.NewValue0(v.Pos, OpConst16, t)
+		v1.AuxInt = int64(1<<uint(k) - 1)
+		v0.AddArg(v1)
+		v.AddArg(v0)
+		v2 := b.NewValue0(v.Pos, OpConst16, t)
+		v2.AuxInt = 0
+		v.AddArg(v2)
+		return true
+	}
+	// match: (Eq16 s:(Sub16 x y) (Const16 [0]))
+	// cond: s.Uses == 1
+	// result: (Eq16 x y)
+	for {
+		_ = v.Args[1]
+		s := v.Args[0]
+		if s.Op != OpSub16 {
 			break
 		}
-		if mul_1.Type != typ.UInt32 {
+		y := s.Args[1]
+		x := s.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst16 {
 			break
 		}
-		m := mul_1.AuxInt
-		v_1_1_1 := v_1_1.Args[1]
-		if v_1_1_1.Op != OpConst64 {
+		if v_1.AuxInt != 0 {
 			break
 		}
-		s := v_1_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32, c).m+1)/2)) && s == umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		if !(s.Uses == 1) {
 			break
 		}
-		v.reset(OpLeq32U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
-		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
-		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v2.AuxInt = int64(int32(udivisible(32, c).m))
-		v1.AddArg(v2)
-		v1.AddArg(x)
-		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v3.AuxInt = int64(32 - udivisible(32, c).k)
-		v0.AddArg(v3)
-		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v4.AuxInt = int64(int32(udivisible(32, c).max))
-		v.AddArg(v4)
+		v.reset(OpEq16)
+		v.AddArg(x)
+		v.AddArg(y)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Rsh32Ux64 mul:(Hmul32u (Const32 <typ.UInt32> [m]) (Rsh32Ux64 x (Const64 [1]))) (Const64 [s])) (Const32 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32,c).m+1)/2)) && s == umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
-	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
+	// match: (Eq16 (Const16 [0]) s:(Sub16 x y))
+	// cond: s.Uses == 1
+	// result: (Eq16 x y)
 	for {
 		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst16 {
 			break
 		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh32Ux64 {
+		if v_0.AuxInt != 0 {
 			break
 		}
-		_ = v_1_0.Args[1]
-		mul := v_1_0.Args[0]
-		if mul.Op != OpHmul32u {
+		s := v.Args[1]
+		if s.Op != OpSub16 {
 			break
 		}
-		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst32 {
+		y := s.Args[1]
+		x := s.Args[0]
+		if !(s.Uses == 1) {
 			break
 		}
-		if mul_0.Type != typ.UInt32 {
+		v.reset(OpEq16)
+		v.AddArg(x)
+		v.AddArg(y)
+		return true
+	}
+	return false
+}
+func rewriteValuegeneric_OpEq32_0(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
+	// match: (Eq32 x x)
+	// cond:
+	// result: (ConstBool [1])
+	for {
+		x := v.Args[1]
+		if x != v.Args[0] {
 			break
 		}
-		m := mul_0.AuxInt
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpRsh32Ux64 {
+		v.reset(OpConstBool)
+		v.AuxInt = 1
+		return true
+	}
+	// match: (Eq32 (Const32 <t> [c]) (Add32 (Const32 <t> [d]) x))
+	// cond:
+	// result: (Eq32 (Const32 <t> [int64(int32(c-d))]) x)
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst32 {
 			break
 		}
-		_ = mul_1.Args[1]
-		if x != mul_1.Args[0] {
+		t := v_0.Type
+		c := v_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpAdd32 {
 			break
 		}
-		mul_1_1 := mul_1.Args[1]
-		if mul_1_1.Op != OpConst64 {
+		x := v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst32 {
 			break
 		}
-		if mul_1_1.AuxInt != 1 {
+		if v_1_0.Type != t {
 			break
 		}
-		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		d := v_1_0.AuxInt
+		v.reset(OpEq32)
+		v0 := b.NewValue0(v.Pos, OpConst32, t)
+		v0.AuxInt = int64(int32(c - d))
+		v.AddArg(v0)
+		v.AddArg(x)
+		return true
+	}
+	// match: (Eq32 (Const32 <t> [c]) (Add32 x (Const32 <t> [d])))
+	// cond:
+	// result: (Eq32 (Const32 <t> [int64(int32(c-d))]) x)
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst32 {
 			break
 		}
-		s := v_1_0_1.AuxInt
+		t := v_0.Type
+		c := v_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpAdd32 {
+			break
+		}
+		_ = v_1.Args[1]
+		x := v_1.Args[0]
 		v_1_1 := v_1.Args[1]
 		if v_1_1.Op != OpConst32 {
 			break
 		}
-		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32, c).m+1)/2)) && s == umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		if v_1_1.Type != t {
 			break
 		}
-		v.reset(OpLeq32U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
-		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
-		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v2.AuxInt = int64(int32(udivisible(32, c).m))
-		v1.AddArg(v2)
-		v1.AddArg(x)
-		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v3.AuxInt = int64(32 - udivisible(32, c).k)
-		v0.AddArg(v3)
+		d := v_1_1.AuxInt
+		v.reset(OpEq32)
+		v0 := b.NewValue0(v.Pos, OpConst32, t)
+		v0.AuxInt = int64(int32(c - d))
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v4.AuxInt = int64(int32(udivisible(32, c).max))
-		v.AddArg(v4)
+		v.AddArg(x)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Rsh32Ux64 mul:(Hmul32u (Rsh32Ux64 x (Const64 [1])) (Const32 <typ.UInt32> [m])) (Const64 [s])) (Const32 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32,c).m+1)/2)) && s == umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
-	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
+	// match: (Eq32 (Add32 (Const32 <t> [d]) x) (Const32 <t> [c]))
+	// cond:
+	// result: (Eq32 (Const32 <t> [int64(int32(c-d))]) x)
 	for {
 		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
+		v_0 := v.Args[0]
+		if v_0.Op != OpAdd32 {
 			break
 		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh32Ux64 {
+		x := v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst32 {
 			break
 		}
-		_ = v_1_0.Args[1]
-		mul := v_1_0.Args[0]
-		if mul.Op != OpHmul32u {
-			break
+		t := v_0_0.Type
+		d := v_0_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst32 {
+			break
 		}
-		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpRsh32Ux64 {
+		if v_1.Type != t {
 			break
 		}
-		_ = mul_0.Args[1]
-		if x != mul_0.Args[0] {
+		c := v_1.AuxInt
+		v.reset(OpEq32)
+		v0 := b.NewValue0(v.Pos, OpConst32, t)
+		v0.AuxInt = int64(int32(c - d))
+		v.AddArg(v0)
+		v.AddArg(x)
+		return true
+	}
+	// match: (Eq32 (Add32 x (Const32 <t> [d])) (Const32 <t> [c]))
+	// cond:
+	// result: (Eq32 (Const32 <t> [int64(int32(c-d))]) x)
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpAdd32 {
 			break
 		}
-		mul_0_1 := mul_0.Args[1]
-		if mul_0_1.Op != OpConst64 {
+		_ = v_0.Args[1]
+		x := v_0.Args[0]
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst32 {
 			break
 		}
-		if mul_0_1.AuxInt != 1 {
+		t := v_0_1.Type
+		d := v_0_1.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst32 {
 			break
 		}
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst32 {
+		if v_1.Type != t {
 			break
 		}
-		if mul_1.Type != typ.UInt32 {
+		c := v_1.AuxInt
+		v.reset(OpEq32)
+		v0 := b.NewValue0(v.Pos, OpConst32, t)
+		v0.AuxInt = int64(int32(c - d))
+		v.AddArg(v0)
+		v.AddArg(x)
+		return true
+	}
+	// match: (Eq32 (Const32 [c]) (Const32 [d]))
+	// cond:
+	// result: (ConstBool [b2i(c == d)])
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst32 {
 			break
 		}
-		m := mul_1.AuxInt
-		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		c := v_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst32 {
 			break
 		}
-		s := v_1_0_1.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst32 {
+		d := v_1.AuxInt
+		v.reset(OpConstBool)
+		v.AuxInt = b2i(c == d)
+		return true
+	}
+	// match: (Eq32 (Const32 [d]) (Const32 [c]))
+	// cond:
+	// result: (ConstBool [b2i(c == d)])
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst32 {
 			break
 		}
-		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32, c).m+1)/2)) && s == umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		d := v_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst32 {
 			break
 		}
-		v.reset(OpLeq32U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
-		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
-		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v2.AuxInt = int64(int32(udivisible(32, c).m))
-		v1.AddArg(v2)
-		v1.AddArg(x)
-		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v3.AuxInt = int64(32 - udivisible(32, c).k)
-		v0.AddArg(v3)
-		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v4.AuxInt = int64(int32(udivisible(32, c).max))
-		v.AddArg(v4)
+		c := v_1.AuxInt
+		v.reset(OpConstBool)
+		v.AuxInt = b2i(c == d)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Const32 [c]) (Rsh32Ux64 mul:(Hmul32u (Const32 <typ.UInt32> [m]) (Rsh32Ux64 x (Const64 [1]))) (Const64 [s]))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32,c).m+1)/2)) && s == umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Rsh32Ux64 mul:(Hmul32u (Const32 [m]) x) (Const64 [s]))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32,c).m/2)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst32 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst32 {
 			break
 		}
-		c := v_0_0.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpRsh32Ux64 {
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpRsh32Ux64 {
 			break
 		}
-		_ = v_0_1.Args[1]
-		mul := v_0_1.Args[0]
+		_ = v_1_1.Args[1]
+		mul := v_1_1.Args[0]
 		if mul.Op != OpHmul32u {
 			break
 		}
@@ -12886,31 +12936,16 @@ func rewriteValuegeneric_OpEq32_10(v *Value) bool {
 		if mul_0.Op != OpConst32 {
 			break
 		}
-		if mul_0.Type != typ.UInt32 {
-			break
-		}
 		m := mul_0.AuxInt
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpRsh32Ux64 {
-			break
-		}
-		_ = mul_1.Args[1]
-		if x != mul_1.Args[0] {
-			break
-		}
-		mul_1_1 := mul_1.Args[1]
-		if mul_1_1.Op != OpConst64 {
-			break
-		}
-		if mul_1_1.AuxInt != 1 {
+		if x != mul.Args[1] {
 			break
 		}
-		v_0_1_1 := v_0_1.Args[1]
-		if v_0_1_1.Op != OpConst64 {
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32, c).m+1)/2)) && s == umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		s := v_1_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32, c).m/2)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -12930,65 +12965,46 @@ func rewriteValuegeneric_OpEq32_10(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	return false
-}
-func rewriteValuegeneric_OpEq32_20(v *Value) bool {
-	b := v.Block
-	typ := &b.Func.Config.Types
-	// match: (Eq32 (Mul32 (Const32 [c]) (Rsh32Ux64 mul:(Hmul32u (Rsh32Ux64 x (Const64 [1])) (Const32 <typ.UInt32> [m])) (Const64 [s]))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32,c).m+1)/2)) && s == umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Rsh32Ux64 mul:(Hmul32u x (Const32 [m])) (Const64 [s]))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32,c).m/2)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst32 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst32 {
 			break
 		}
-		c := v_0_0.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpRsh32Ux64 {
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpRsh32Ux64 {
 			break
 		}
-		_ = v_0_1.Args[1]
-		mul := v_0_1.Args[0]
+		_ = v_1_1.Args[1]
+		mul := v_1_1.Args[0]
 		if mul.Op != OpHmul32u {
 			break
 		}
 		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpRsh32Ux64 {
-			break
-		}
-		_ = mul_0.Args[1]
-		if x != mul_0.Args[0] {
-			break
-		}
-		mul_0_1 := mul_0.Args[1]
-		if mul_0_1.Op != OpConst64 {
-			break
-		}
-		if mul_0_1.AuxInt != 1 {
+		if x != mul.Args[0] {
 			break
 		}
 		mul_1 := mul.Args[1]
 		if mul_1.Op != OpConst32 {
 			break
 		}
-		if mul_1.Type != typ.UInt32 {
-			break
-		}
 		m := mul_1.AuxInt
-		v_0_1_1 := v_0_1.Args[1]
-		if v_0_1_1.Op != OpConst64 {
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32, c).m+1)/2)) && s == umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		s := v_1_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32, c).m/2)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -13008,22 +13024,23 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Rsh32Ux64 mul:(Hmul32u (Const32 <typ.UInt32> [m]) (Rsh32Ux64 x (Const64 [1]))) (Const64 [s])) (Const32 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32,c).m+1)/2)) && s == umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Rsh32Ux64 mul:(Hmul32u (Const32 [m]) x) (Const64 [s])) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32,c).m/2)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh32Ux64 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh32Ux64 {
 			break
 		}
-		_ = v_0_0.Args[1]
-		mul := v_0_0.Args[0]
+		_ = v_1_0.Args[1]
+		mul := v_1_0.Args[0]
 		if mul.Op != OpHmul32u {
 			break
 		}
@@ -13032,36 +13049,21 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 		if mul_0.Op != OpConst32 {
 			break
 		}
-		if mul_0.Type != typ.UInt32 {
-			break
-		}
 		m := mul_0.AuxInt
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpRsh32Ux64 {
-			break
-		}
-		_ = mul_1.Args[1]
-		if x != mul_1.Args[0] {
+		if x != mul.Args[1] {
 			break
 		}
-		mul_1_1 := mul_1.Args[1]
-		if mul_1_1.Op != OpConst64 {
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
 			break
 		}
-		if mul_1_1.AuxInt != 1 {
+		s := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst32 {
 			break
 		}
-		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
-			break
-		}
-		s := v_0_0_1.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst32 {
-			break
-		}
-		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32, c).m+1)/2)) && s == umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32, c).m/2)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -13081,60 +13083,51 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Rsh32Ux64 mul:(Hmul32u (Rsh32Ux64 x (Const64 [1])) (Const32 <typ.UInt32> [m])) (Const64 [s])) (Const32 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32,c).m+1)/2)) && s == umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
+	return false
+}
+func rewriteValuegeneric_OpEq32_10(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
+	// match: (Eq32 x (Mul32 (Rsh32Ux64 mul:(Hmul32u x (Const32 [m])) (Const64 [s])) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32,c).m/2)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh32Ux64 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh32Ux64 {
 			break
 		}
-		_ = v_0_0.Args[1]
-		mul := v_0_0.Args[0]
+		_ = v_1_0.Args[1]
+		mul := v_1_0.Args[0]
 		if mul.Op != OpHmul32u {
 			break
 		}
 		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpRsh32Ux64 {
-			break
-		}
-		_ = mul_0.Args[1]
-		if x != mul_0.Args[0] {
-			break
-		}
-		mul_0_1 := mul_0.Args[1]
-		if mul_0_1.Op != OpConst64 {
-			break
-		}
-		if mul_0_1.AuxInt != 1 {
+		if x != mul.Args[0] {
 			break
 		}
 		mul_1 := mul.Args[1]
 		if mul_1.Op != OpConst32 {
 			break
 		}
-		if mul_1.Type != typ.UInt32 {
-			break
-		}
 		m := mul_1.AuxInt
-		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_0_1.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst32 {
+		s := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst32 {
 			break
 		}
-		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32, c).m+1)/2)) && s == umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32, c).m/2)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -13154,36 +13147,27 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Const32 [c]) (Rsh32Ux64 (Avg32u x mul:(Hmul32u (Const32 [m]) x)) (Const64 [s]))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32,c).m)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 (Mul32 (Const32 [c]) (Rsh32Ux64 mul:(Hmul32u (Const32 [m]) x) (Const64 [s]))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32,c).m/2)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
-			break
-		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst32 {
-			break
-		}
-		c := v_1_0.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpRsh32Ux64 {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		_ = v_1_1.Args[1]
-		v_1_1_0 := v_1_1.Args[0]
-		if v_1_1_0.Op != OpAvg32u {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst32 {
 			break
 		}
-		_ = v_1_1_0.Args[1]
-		if x != v_1_1_0.Args[0] {
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpRsh32Ux64 {
 			break
 		}
-		mul := v_1_1_0.Args[1]
+		_ = v_0_1.Args[1]
+		mul := v_0_1.Args[0]
 		if mul.Op != OpHmul32u {
 			break
 		}
@@ -13196,12 +13180,12 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 		if x != mul.Args[1] {
 			break
 		}
-		v_1_1_1 := v_1_1.Args[1]
-		if v_1_1_1.Op != OpConst64 {
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32, c).m)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		s := v_0_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32, c).m/2)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -13221,36 +13205,27 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Const32 [c]) (Rsh32Ux64 (Avg32u x mul:(Hmul32u x (Const32 [m]))) (Const64 [s]))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32,c).m)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 (Mul32 (Const32 [c]) (Rsh32Ux64 mul:(Hmul32u x (Const32 [m])) (Const64 [s]))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32,c).m/2)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
-			break
-		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst32 {
-			break
-		}
-		c := v_1_0.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpRsh32Ux64 {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		_ = v_1_1.Args[1]
-		v_1_1_0 := v_1_1.Args[0]
-		if v_1_1_0.Op != OpAvg32u {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst32 {
 			break
 		}
-		_ = v_1_1_0.Args[1]
-		if x != v_1_1_0.Args[0] {
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpRsh32Ux64 {
 			break
 		}
-		mul := v_1_1_0.Args[1]
+		_ = v_0_1.Args[1]
+		mul := v_0_1.Args[0]
 		if mul.Op != OpHmul32u {
 			break
 		}
@@ -13263,12 +13238,12 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 			break
 		}
 		m := mul_1.AuxInt
-		v_1_1_1 := v_1_1.Args[1]
-		if v_1_1_1.Op != OpConst64 {
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32, c).m)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		s := v_0_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32, c).m/2)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -13288,31 +13263,22 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Rsh32Ux64 (Avg32u x mul:(Hmul32u (Const32 [m]) x)) (Const64 [s])) (Const32 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32,c).m)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 (Mul32 (Rsh32Ux64 mul:(Hmul32u (Const32 [m]) x) (Const64 [s])) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32,c).m/2)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
-			break
-		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh32Ux64 {
-			break
-		}
-		_ = v_1_0.Args[1]
-		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpAvg32u {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		_ = v_1_0_0.Args[1]
-		if x != v_1_0_0.Args[0] {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh32Ux64 {
 			break
 		}
-		mul := v_1_0_0.Args[1]
+		_ = v_0_0.Args[1]
+		mul := v_0_0.Args[0]
 		if mul.Op != OpHmul32u {
 			break
 		}
@@ -13325,17 +13291,17 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 		if x != mul.Args[1] {
 			break
 		}
-		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_0_1.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst32 {
+		s := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst32 {
 			break
 		}
-		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32, c).m)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32, c).m/2)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -13355,31 +13321,22 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Rsh32Ux64 (Avg32u x mul:(Hmul32u x (Const32 [m]))) (Const64 [s])) (Const32 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32,c).m)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 (Mul32 (Rsh32Ux64 mul:(Hmul32u x (Const32 [m])) (Const64 [s])) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32,c).m/2)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
-			break
-		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh32Ux64 {
-			break
-		}
-		_ = v_1_0.Args[1]
-		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpAvg32u {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		_ = v_1_0_0.Args[1]
-		if x != v_1_0_0.Args[0] {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh32Ux64 {
 			break
 		}
-		mul := v_1_0_0.Args[1]
+		_ = v_0_0.Args[1]
+		mul := v_0_0.Args[0]
 		if mul.Op != OpHmul32u {
 			break
 		}
@@ -13392,17 +13349,17 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 			break
 		}
 		m := mul_1.AuxInt
-		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_0_1.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst32 {
+		s := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst32 {
 			break
 		}
-		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32, c).m)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+umagic(32, c).m/2)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -13422,35 +13379,28 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Const32 [c]) (Rsh32Ux64 (Avg32u x mul:(Hmul32u (Const32 [m]) x)) (Const64 [s]))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32,c).m)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Rsh32Ux64 mul:(Hmul32u (Const32 <typ.UInt32> [m]) (Rsh32Ux64 x (Const64 [1]))) (Const64 [s]))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32,c).m+1)/2)) && s == umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
-			break
-		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst32 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		c := v_0_0.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpRsh32Ux64 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst32 {
 			break
 		}
-		_ = v_0_1.Args[1]
-		v_0_1_0 := v_0_1.Args[0]
-		if v_0_1_0.Op != OpAvg32u {
-			break
-		}
-		_ = v_0_1_0.Args[1]
-		if x != v_0_1_0.Args[0] {
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpRsh32Ux64 {
 			break
 		}
-		mul := v_0_1_0.Args[1]
+		_ = v_1_1.Args[1]
+		mul := v_1_1.Args[0]
 		if mul.Op != OpHmul32u {
 			break
 		}
@@ -13459,16 +13409,31 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 		if mul_0.Op != OpConst32 {
 			break
 		}
+		if mul_0.Type != typ.UInt32 {
+			break
+		}
 		m := mul_0.AuxInt
-		if x != mul.Args[1] {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpRsh32Ux64 {
 			break
 		}
-		v_0_1_1 := v_0_1.Args[1]
-		if v_0_1_1.Op != OpConst64 {
+		_ = mul_1.Args[1]
+		if x != mul_1.Args[0] {
 			break
 		}
-		s := v_0_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32, c).m)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		mul_1_1 := mul_1.Args[1]
+		if mul_1_1.Op != OpConst64 {
+			break
+		}
+		if mul_1_1.AuxInt != 1 {
+			break
+		}
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32, c).m+1)/2)) && s == umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -13488,53 +13453,61 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Const32 [c]) (Rsh32Ux64 (Avg32u x mul:(Hmul32u x (Const32 [m]))) (Const64 [s]))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32,c).m)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Rsh32Ux64 mul:(Hmul32u (Rsh32Ux64 x (Const64 [1])) (Const32 <typ.UInt32> [m])) (Const64 [s]))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32,c).m+1)/2)) && s == umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst32 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst32 {
 			break
 		}
-		c := v_0_0.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpRsh32Ux64 {
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpRsh32Ux64 {
 			break
 		}
-		_ = v_0_1.Args[1]
-		v_0_1_0 := v_0_1.Args[0]
-		if v_0_1_0.Op != OpAvg32u {
+		_ = v_1_1.Args[1]
+		mul := v_1_1.Args[0]
+		if mul.Op != OpHmul32u {
 			break
 		}
-		_ = v_0_1_0.Args[1]
-		if x != v_0_1_0.Args[0] {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpRsh32Ux64 {
 			break
 		}
-		mul := v_0_1_0.Args[1]
-		if mul.Op != OpHmul32u {
+		_ = mul_0.Args[1]
+		if x != mul_0.Args[0] {
 			break
 		}
-		_ = mul.Args[1]
-		if x != mul.Args[0] {
+		mul_0_1 := mul_0.Args[1]
+		if mul_0_1.Op != OpConst64 {
+			break
+		}
+		if mul_0_1.AuxInt != 1 {
 			break
 		}
 		mul_1 := mul.Args[1]
 		if mul_1.Op != OpConst32 {
 			break
 		}
+		if mul_1.Type != typ.UInt32 {
+			break
+		}
 		m := mul_1.AuxInt
-		v_0_1_1 := v_0_1.Args[1]
-		if v_0_1_1.Op != OpConst64 {
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32, c).m)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		s := v_1_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32, c).m+1)/2)) && s == umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -13554,30 +13527,23 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Rsh32Ux64 (Avg32u x mul:(Hmul32u (Const32 [m]) x)) (Const64 [s])) (Const32 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32,c).m)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Rsh32Ux64 mul:(Hmul32u (Const32 <typ.UInt32> [m]) (Rsh32Ux64 x (Const64 [1]))) (Const64 [s])) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32,c).m+1)/2)) && s == umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
-			break
-		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh32Ux64 {
-			break
-		}
-		_ = v_0_0.Args[1]
-		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpAvg32u {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0_0_0.Args[1]
-		if x != v_0_0_0.Args[0] {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh32Ux64 {
 			break
 		}
-		mul := v_0_0_0.Args[1]
+		_ = v_1_0.Args[1]
+		mul := v_1_0.Args[0]
 		if mul.Op != OpHmul32u {
 			break
 		}
@@ -13586,21 +13552,36 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 		if mul_0.Op != OpConst32 {
 			break
 		}
+		if mul_0.Type != typ.UInt32 {
+			break
+		}
 		m := mul_0.AuxInt
-		if x != mul.Args[1] {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpRsh32Ux64 {
 			break
 		}
-		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
+		_ = mul_1.Args[1]
+		if x != mul_1.Args[0] {
 			break
 		}
-		s := v_0_0_1.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst32 {
+		mul_1_1 := mul_1.Args[1]
+		if mul_1_1.Op != OpConst64 {
 			break
 		}
-		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32, c).m)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		if mul_1_1.AuxInt != 1 {
+			break
+		}
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst32 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32, c).m+1)/2)) && s == umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -13620,58 +13601,61 @@ func rewriteValuegeneric_OpEq32_20(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	return false
-}
-func rewriteValuegeneric_OpEq32_30(v *Value) bool {
-	b := v.Block
-	typ := &b.Func.Config.Types
-	// match: (Eq32 (Mul32 (Rsh32Ux64 (Avg32u x mul:(Hmul32u x (Const32 [m]))) (Const64 [s])) (Const32 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32,c).m)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Rsh32Ux64 mul:(Hmul32u (Rsh32Ux64 x (Const64 [1])) (Const32 <typ.UInt32> [m])) (Const64 [s])) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32,c).m+1)/2)) && s == umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh32Ux64 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh32Ux64 {
 			break
 		}
-		_ = v_0_0.Args[1]
-		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpAvg32u {
+		_ = v_1_0.Args[1]
+		mul := v_1_0.Args[0]
+		if mul.Op != OpHmul32u {
 			break
 		}
-		_ = v_0_0_0.Args[1]
-		if x != v_0_0_0.Args[0] {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpRsh32Ux64 {
 			break
 		}
-		mul := v_0_0_0.Args[1]
-		if mul.Op != OpHmul32u {
+		_ = mul_0.Args[1]
+		if x != mul_0.Args[0] {
 			break
 		}
-		_ = mul.Args[1]
-		if x != mul.Args[0] {
+		mul_0_1 := mul_0.Args[1]
+		if mul_0_1.Op != OpConst64 {
+			break
+		}
+		if mul_0_1.AuxInt != 1 {
 			break
 		}
 		mul_1 := mul.Args[1]
 		if mul_1.Op != OpConst32 {
 			break
 		}
+		if mul_1.Type != typ.UInt32 {
+			break
+		}
 		m := mul_1.AuxInt
-		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_0_1.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst32 {
+		s := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst32 {
 			break
 		}
-		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32, c).m)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32, c).m+1)/2)) && s == umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -13691,54 +13675,60 @@ func rewriteValuegeneric_OpEq32_30(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (ZeroExt32to64 x)) (Const64 [s])))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32,c).m/2) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 (Mul32 (Const32 [c]) (Rsh32Ux64 mul:(Hmul32u (Const32 <typ.UInt32> [m]) (Rsh32Ux64 x (Const64 [1]))) (Const64 [s]))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32,c).m+1)/2)) && s == umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
-			break
-		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst32 {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		c := v_1_0.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpTrunc64to32 {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst32 {
 			break
 		}
-		v_1_1_0 := v_1_1.Args[0]
-		if v_1_1_0.Op != OpRsh64Ux64 {
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpRsh32Ux64 {
 			break
 		}
-		_ = v_1_1_0.Args[1]
-		mul := v_1_1_0.Args[0]
-		if mul.Op != OpMul64 {
+		_ = v_0_1.Args[1]
+		mul := v_0_1.Args[0]
+		if mul.Op != OpHmul32u {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst64 {
+		if mul_0.Op != OpConst32 {
+			break
+		}
+		if mul_0.Type != typ.UInt32 {
 			break
 		}
 		m := mul_0.AuxInt
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpZeroExt32to64 {
+		if mul_1.Op != OpRsh32Ux64 {
 			break
 		}
+		_ = mul_1.Args[1]
 		if x != mul_1.Args[0] {
 			break
 		}
-		v_1_1_0_1 := v_1_1_0.Args[1]
-		if v_1_1_0_1.Op != OpConst64 {
+		mul_1_1 := mul_1.Args[1]
+		if mul_1_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_1_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32, c).m/2) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		if mul_1_1.AuxInt != 1 {
+			break
+		}
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32, c).m+1)/2)) && s == umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -13758,54 +13748,65 @@ func rewriteValuegeneric_OpEq32_30(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (ZeroExt32to64 x) (Const64 [m])) (Const64 [s])))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32,c).m/2) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	return false
+}
+func rewriteValuegeneric_OpEq32_20(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
+	// match: (Eq32 (Mul32 (Const32 [c]) (Rsh32Ux64 mul:(Hmul32u (Rsh32Ux64 x (Const64 [1])) (Const32 <typ.UInt32> [m])) (Const64 [s]))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32,c).m+1)/2)) && s == umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
-			break
-		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst32 {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		c := v_1_0.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpTrunc64to32 {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst32 {
 			break
 		}
-		v_1_1_0 := v_1_1.Args[0]
-		if v_1_1_0.Op != OpRsh64Ux64 {
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpRsh32Ux64 {
 			break
 		}
-		_ = v_1_1_0.Args[1]
-		mul := v_1_1_0.Args[0]
-		if mul.Op != OpMul64 {
+		_ = v_0_1.Args[1]
+		mul := v_0_1.Args[0]
+		if mul.Op != OpHmul32u {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpZeroExt32to64 {
+		if mul_0.Op != OpRsh32Ux64 {
 			break
 		}
+		_ = mul_0.Args[1]
 		if x != mul_0.Args[0] {
 			break
 		}
+		mul_0_1 := mul_0.Args[1]
+		if mul_0_1.Op != OpConst64 {
+			break
+		}
+		if mul_0_1.AuxInt != 1 {
+			break
+		}
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst64 {
+		if mul_1.Op != OpConst32 {
+			break
+		}
+		if mul_1.Type != typ.UInt32 {
 			break
 		}
 		m := mul_1.AuxInt
-		v_1_1_0_1 := v_1_1_0.Args[1]
-		if v_1_1_0_1.Op != OpConst64 {
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_1_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32, c).m/2) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		s := v_0_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32, c).m+1)/2)) && s == umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -13825,54 +13826,60 @@ func rewriteValuegeneric_OpEq32_30(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (ZeroExt32to64 x)) (Const64 [s]))) (Const32 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32,c).m/2) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 (Mul32 (Rsh32Ux64 mul:(Hmul32u (Const32 <typ.UInt32> [m]) (Rsh32Ux64 x (Const64 [1]))) (Const64 [s])) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32,c).m+1)/2)) && s == umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
-			break
-		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpTrunc64to32 {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpRsh64Ux64 {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh32Ux64 {
 			break
 		}
-		_ = v_1_0_0.Args[1]
-		mul := v_1_0_0.Args[0]
-		if mul.Op != OpMul64 {
+		_ = v_0_0.Args[1]
+		mul := v_0_0.Args[0]
+		if mul.Op != OpHmul32u {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst64 {
+		if mul_0.Op != OpConst32 {
+			break
+		}
+		if mul_0.Type != typ.UInt32 {
 			break
 		}
 		m := mul_0.AuxInt
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpZeroExt32to64 {
+		if mul_1.Op != OpRsh32Ux64 {
 			break
 		}
+		_ = mul_1.Args[1]
 		if x != mul_1.Args[0] {
 			break
 		}
-		v_1_0_0_1 := v_1_0_0.Args[1]
-		if v_1_0_0_1.Op != OpConst64 {
+		mul_1_1 := mul_1.Args[1]
+		if mul_1_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_0_0_1.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst32 {
+		if mul_1_1.AuxInt != 1 {
 			break
 		}
-		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32, c).m/2) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst32 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32, c).m+1)/2)) && s == umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -13892,54 +13899,60 @@ func rewriteValuegeneric_OpEq32_30(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (ZeroExt32to64 x) (Const64 [m])) (Const64 [s]))) (Const32 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32,c).m/2) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 (Mul32 (Rsh32Ux64 mul:(Hmul32u (Rsh32Ux64 x (Const64 [1])) (Const32 <typ.UInt32> [m])) (Const64 [s])) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32,c).m+1)/2)) && s == umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
-			break
-		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpTrunc64to32 {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpRsh64Ux64 {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh32Ux64 {
 			break
 		}
-		_ = v_1_0_0.Args[1]
-		mul := v_1_0_0.Args[0]
-		if mul.Op != OpMul64 {
+		_ = v_0_0.Args[1]
+		mul := v_0_0.Args[0]
+		if mul.Op != OpHmul32u {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpZeroExt32to64 {
+		if mul_0.Op != OpRsh32Ux64 {
 			break
 		}
+		_ = mul_0.Args[1]
 		if x != mul_0.Args[0] {
 			break
 		}
+		mul_0_1 := mul_0.Args[1]
+		if mul_0_1.Op != OpConst64 {
+			break
+		}
+		if mul_0_1.AuxInt != 1 {
+			break
+		}
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst64 {
+		if mul_1.Op != OpConst32 {
+			break
+		}
+		if mul_1.Type != typ.UInt32 {
 			break
 		}
 		m := mul_1.AuxInt
-		v_1_0_0_1 := v_1_0_0.Args[1]
-		if v_1_0_0_1.Op != OpConst64 {
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_0_0_1.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst32 {
+		s := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst32 {
 			break
 		}
-		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32, c).m/2) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(1<<31+(umagic(32, c).m+1)/2)) && s == umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -13959,53 +13972,54 @@ func rewriteValuegeneric_OpEq32_30(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (ZeroExt32to64 x)) (Const64 [s])))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32,c).m/2) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Rsh32Ux64 (Avg32u x mul:(Hmul32u (Const32 [m]) x)) (Const64 [s]))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32,c).m)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst32 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst32 {
 			break
 		}
-		c := v_0_0.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpTrunc64to32 {
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpRsh32Ux64 {
 			break
 		}
-		v_0_1_0 := v_0_1.Args[0]
-		if v_0_1_0.Op != OpRsh64Ux64 {
+		_ = v_1_1.Args[1]
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpAvg32u {
 			break
 		}
-		_ = v_0_1_0.Args[1]
-		mul := v_0_1_0.Args[0]
-		if mul.Op != OpMul64 {
+		_ = v_1_1_0.Args[1]
+		if x != v_1_1_0.Args[0] {
+			break
+		}
+		mul := v_1_1_0.Args[1]
+		if mul.Op != OpHmul32u {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst64 {
+		if mul_0.Op != OpConst32 {
 			break
 		}
 		m := mul_0.AuxInt
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpZeroExt32to64 {
-			break
-		}
-		if x != mul_1.Args[0] {
+		if x != mul.Args[1] {
 			break
 		}
-		v_0_1_0_1 := v_0_1_0.Args[1]
-		if v_0_1_0_1.Op != OpConst64 {
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_1_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32, c).m/2) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		s := v_1_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32, c).m)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -14025,53 +14039,54 @@ func rewriteValuegeneric_OpEq32_30(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (ZeroExt32to64 x) (Const64 [m])) (Const64 [s])))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32,c).m/2) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Rsh32Ux64 (Avg32u x mul:(Hmul32u x (Const32 [m]))) (Const64 [s]))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32,c).m)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst32 {
-			break
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst32 {
+			break
 		}
-		c := v_0_0.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpTrunc64to32 {
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpRsh32Ux64 {
 			break
 		}
-		v_0_1_0 := v_0_1.Args[0]
-		if v_0_1_0.Op != OpRsh64Ux64 {
+		_ = v_1_1.Args[1]
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpAvg32u {
 			break
 		}
-		_ = v_0_1_0.Args[1]
-		mul := v_0_1_0.Args[0]
-		if mul.Op != OpMul64 {
+		_ = v_1_1_0.Args[1]
+		if x != v_1_1_0.Args[0] {
 			break
 		}
-		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpZeroExt32to64 {
+		mul := v_1_1_0.Args[1]
+		if mul.Op != OpHmul32u {
 			break
 		}
-		if x != mul_0.Args[0] {
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
 			break
 		}
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst64 {
+		if mul_1.Op != OpConst32 {
 			break
 		}
 		m := mul_1.AuxInt
-		v_0_1_0_1 := v_0_1_0.Args[1]
-		if v_0_1_0_1.Op != OpConst64 {
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_1_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32, c).m/2) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		s := v_1_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32, c).m)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -14091,53 +14106,54 @@ func rewriteValuegeneric_OpEq32_30(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (ZeroExt32to64 x)) (Const64 [s]))) (Const32 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32,c).m/2) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Rsh32Ux64 (Avg32u x mul:(Hmul32u (Const32 [m]) x)) (Const64 [s])) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32,c).m)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpTrunc64to32 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh32Ux64 {
 			break
 		}
-		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpRsh64Ux64 {
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpAvg32u {
 			break
 		}
-		_ = v_0_0_0.Args[1]
-		mul := v_0_0_0.Args[0]
-		if mul.Op != OpMul64 {
+		_ = v_1_0_0.Args[1]
+		if x != v_1_0_0.Args[0] {
+			break
+		}
+		mul := v_1_0_0.Args[1]
+		if mul.Op != OpHmul32u {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst64 {
+		if mul_0.Op != OpConst32 {
 			break
 		}
 		m := mul_0.AuxInt
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpZeroExt32to64 {
-			break
-		}
-		if x != mul_1.Args[0] {
+		if x != mul.Args[1] {
 			break
 		}
-		v_0_0_0_1 := v_0_0_0.Args[1]
-		if v_0_0_0_1.Op != OpConst64 {
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_0_0_1.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst32 {
+		s := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst32 {
 			break
 		}
-		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32, c).m/2) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32, c).m)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -14157,53 +14173,54 @@ func rewriteValuegeneric_OpEq32_30(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (ZeroExt32to64 x) (Const64 [m])) (Const64 [s]))) (Const32 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32,c).m/2) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Rsh32Ux64 (Avg32u x mul:(Hmul32u x (Const32 [m]))) (Const64 [s])) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32,c).m)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpTrunc64to32 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh32Ux64 {
 			break
 		}
-		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpRsh64Ux64 {
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpAvg32u {
 			break
 		}
-		_ = v_0_0_0.Args[1]
-		mul := v_0_0_0.Args[0]
-		if mul.Op != OpMul64 {
+		_ = v_1_0_0.Args[1]
+		if x != v_1_0_0.Args[0] {
 			break
 		}
-		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpZeroExt32to64 {
+		mul := v_1_0_0.Args[1]
+		if mul.Op != OpHmul32u {
 			break
 		}
-		if x != mul_0.Args[0] {
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
 			break
 		}
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst64 {
+		if mul_1.Op != OpConst32 {
 			break
 		}
 		m := mul_1.AuxInt
-		v_0_0_0_1 := v_0_0_0.Args[1]
-		if v_0_0_0_1.Op != OpConst64 {
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_0_0_1.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst32 {
+		s := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst32 {
 			break
 		}
-		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32, c).m/2) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32, c).m)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -14223,66 +14240,53 @@ func rewriteValuegeneric_OpEq32_30(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (Rsh64Ux64 (ZeroExt32to64 x) (Const64 [1]))) (Const64 [s])))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32,c).m+1)/2) && s == 32+umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 (Mul32 (Const32 [c]) (Rsh32Ux64 (Avg32u x mul:(Hmul32u (Const32 [m]) x)) (Const64 [s]))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32,c).m)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst32 {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst32 {
 			break
 		}
-		c := v_1_0.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpTrunc64to32 {
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpRsh32Ux64 {
 			break
 		}
-		v_1_1_0 := v_1_1.Args[0]
-		if v_1_1_0.Op != OpRsh64Ux64 {
+		_ = v_0_1.Args[1]
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpAvg32u {
 			break
 		}
-		_ = v_1_1_0.Args[1]
-		mul := v_1_1_0.Args[0]
-		if mul.Op != OpMul64 {
+		_ = v_0_1_0.Args[1]
+		if x != v_0_1_0.Args[0] {
+			break
+		}
+		mul := v_0_1_0.Args[1]
+		if mul.Op != OpHmul32u {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst64 {
+		if mul_0.Op != OpConst32 {
 			break
 		}
 		m := mul_0.AuxInt
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpRsh64Ux64 {
-			break
-		}
-		_ = mul_1.Args[1]
-		mul_1_0 := mul_1.Args[0]
-		if mul_1_0.Op != OpZeroExt32to64 {
-			break
-		}
-		if x != mul_1_0.Args[0] {
-			break
-		}
-		mul_1_1 := mul_1.Args[1]
-		if mul_1_1.Op != OpConst64 {
-			break
-		}
-		if mul_1_1.AuxInt != 1 {
+		if x != mul.Args[1] {
 			break
 		}
-		v_1_1_0_1 := v_1_1_0.Args[1]
-		if v_1_1_0_1.Op != OpConst64 {
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_1_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32, c).m+1)/2) && s == 32+umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		s := v_0_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32, c).m)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -14302,71 +14306,53 @@ func rewriteValuegeneric_OpEq32_30(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	return false
-}
-func rewriteValuegeneric_OpEq32_40(v *Value) bool {
-	b := v.Block
-	typ := &b.Func.Config.Types
-	// match: (Eq32 x (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Rsh64Ux64 (ZeroExt32to64 x) (Const64 [1])) (Const64 [m])) (Const64 [s])))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32,c).m+1)/2) && s == 32+umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 (Mul32 (Const32 [c]) (Rsh32Ux64 (Avg32u x mul:(Hmul32u x (Const32 [m]))) (Const64 [s]))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32,c).m)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst32 {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst32 {
 			break
 		}
-		c := v_1_0.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpTrunc64to32 {
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpRsh32Ux64 {
 			break
 		}
-		v_1_1_0 := v_1_1.Args[0]
-		if v_1_1_0.Op != OpRsh64Ux64 {
+		_ = v_0_1.Args[1]
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpAvg32u {
 			break
 		}
-		_ = v_1_1_0.Args[1]
-		mul := v_1_1_0.Args[0]
-		if mul.Op != OpMul64 {
+		_ = v_0_1_0.Args[1]
+		if x != v_0_1_0.Args[0] {
 			break
 		}
-		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpRsh64Ux64 {
+		mul := v_0_1_0.Args[1]
+		if mul.Op != OpHmul32u {
 			break
 		}
-		_ = mul_0.Args[1]
-		mul_0_0 := mul_0.Args[0]
-		if mul_0_0.Op != OpZeroExt32to64 {
-			break
-		}
-		if x != mul_0_0.Args[0] {
-			break
-		}
-		mul_0_1 := mul_0.Args[1]
-		if mul_0_1.Op != OpConst64 {
-			break
-		}
-		if mul_0_1.AuxInt != 1 {
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
 			break
 		}
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst64 {
+		if mul_1.Op != OpConst32 {
 			break
 		}
 		m := mul_1.AuxInt
-		v_1_1_0_1 := v_1_1_0.Args[1]
-		if v_1_1_0_1.Op != OpConst64 {
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_1_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32, c).m+1)/2) && s == 32+umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		s := v_0_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32, c).m)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -14386,66 +14372,53 @@ func rewriteValuegeneric_OpEq32_40(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (Rsh64Ux64 (ZeroExt32to64 x) (Const64 [1]))) (Const64 [s]))) (Const32 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32,c).m+1)/2) && s == 32+umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 (Mul32 (Rsh32Ux64 (Avg32u x mul:(Hmul32u (Const32 [m]) x)) (Const64 [s])) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32,c).m)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpTrunc64to32 {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh32Ux64 {
 			break
 		}
-		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpRsh64Ux64 {
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpAvg32u {
 			break
 		}
-		_ = v_1_0_0.Args[1]
-		mul := v_1_0_0.Args[0]
-		if mul.Op != OpMul64 {
+		_ = v_0_0_0.Args[1]
+		if x != v_0_0_0.Args[0] {
+			break
+		}
+		mul := v_0_0_0.Args[1]
+		if mul.Op != OpHmul32u {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst64 {
+		if mul_0.Op != OpConst32 {
 			break
 		}
 		m := mul_0.AuxInt
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpRsh64Ux64 {
-			break
-		}
-		_ = mul_1.Args[1]
-		mul_1_0 := mul_1.Args[0]
-		if mul_1_0.Op != OpZeroExt32to64 {
-			break
-		}
-		if x != mul_1_0.Args[0] {
-			break
-		}
-		mul_1_1 := mul_1.Args[1]
-		if mul_1_1.Op != OpConst64 {
-			break
-		}
-		if mul_1_1.AuxInt != 1 {
+		if x != mul.Args[1] {
 			break
 		}
-		v_1_0_0_1 := v_1_0_0.Args[1]
-		if v_1_0_0_1.Op != OpConst64 {
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_0_0_1.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst32 {
+		s := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst32 {
 			break
 		}
-		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32, c).m+1)/2) && s == 32+umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32, c).m)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -14465,66 +14438,58 @@ func rewriteValuegeneric_OpEq32_40(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Rsh64Ux64 (ZeroExt32to64 x) (Const64 [1])) (Const64 [m])) (Const64 [s]))) (Const32 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32,c).m+1)/2) && s == 32+umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
+	return false
+}
+func rewriteValuegeneric_OpEq32_30(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
+	// match: (Eq32 (Mul32 (Rsh32Ux64 (Avg32u x mul:(Hmul32u x (Const32 [m]))) (Const64 [s])) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32,c).m)) && s == umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
-			break
-		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpTrunc64to32 {
-			break
-		}
-		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpRsh64Ux64 {
-			break
-		}
-		_ = v_1_0_0.Args[1]
-		mul := v_1_0_0.Args[0]
-		if mul.Op != OpMul64 {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpRsh64Ux64 {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh32Ux64 {
 			break
 		}
-		_ = mul_0.Args[1]
-		mul_0_0 := mul_0.Args[0]
-		if mul_0_0.Op != OpZeroExt32to64 {
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpAvg32u {
 			break
 		}
-		if x != mul_0_0.Args[0] {
+		_ = v_0_0_0.Args[1]
+		if x != v_0_0_0.Args[0] {
 			break
 		}
-		mul_0_1 := mul_0.Args[1]
-		if mul_0_1.Op != OpConst64 {
+		mul := v_0_0_0.Args[1]
+		if mul.Op != OpHmul32u {
 			break
 		}
-		if mul_0_1.AuxInt != 1 {
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
 			break
 		}
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst64 {
+		if mul_1.Op != OpConst32 {
 			break
 		}
 		m := mul_1.AuxInt
-		v_1_0_0_1 := v_1_0_0.Args[1]
-		if v_1_0_0_1.Op != OpConst64 {
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_0_0_1.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst32 {
+		s := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst32 {
 			break
 		}
-		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32, c).m+1)/2) && s == 32+umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(umagic(32, c).m)) && s == umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -14544,31 +14509,32 @@ func rewriteValuegeneric_OpEq32_40(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (Rsh64Ux64 (ZeroExt32to64 x) (Const64 [1]))) (Const64 [s])))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32,c).m+1)/2) && s == 32+umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (ZeroExt32to64 x)) (Const64 [s])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32,c).m/2) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst32 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst32 {
 			break
 		}
-		c := v_0_0.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpTrunc64to32 {
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpTrunc64to32 {
 			break
 		}
-		v_0_1_0 := v_0_1.Args[0]
-		if v_0_1_0.Op != OpRsh64Ux64 {
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh64Ux64 {
 			break
 		}
-		_ = v_0_1_0.Args[1]
-		mul := v_0_1_0.Args[0]
+		_ = v_1_1_0.Args[1]
+		mul := v_1_1_0.Args[0]
 		if mul.Op != OpMul64 {
 			break
 		}
@@ -14579,30 +14545,18 @@ func rewriteValuegeneric_OpEq32_40(v *Value) bool {
 		}
 		m := mul_0.AuxInt
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpRsh64Ux64 {
-			break
-		}
-		_ = mul_1.Args[1]
-		mul_1_0 := mul_1.Args[0]
-		if mul_1_0.Op != OpZeroExt32to64 {
-			break
-		}
-		if x != mul_1_0.Args[0] {
-			break
-		}
-		mul_1_1 := mul_1.Args[1]
-		if mul_1_1.Op != OpConst64 {
+		if mul_1.Op != OpZeroExt32to64 {
 			break
 		}
-		if mul_1_1.AuxInt != 1 {
+		if x != mul_1.Args[0] {
 			break
 		}
-		v_0_1_0_1 := v_0_1_0.Args[1]
-		if v_0_1_0_1.Op != OpConst64 {
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_1_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32, c).m+1)/2) && s == 32+umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		s := v_1_1_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32, c).m/2) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -14622,65 +14576,54 @@ func rewriteValuegeneric_OpEq32_40(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Rsh64Ux64 (ZeroExt32to64 x) (Const64 [1])) (Const64 [m])) (Const64 [s])))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32,c).m+1)/2) && s == 32+umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (ZeroExt32to64 x) (Const64 [m])) (Const64 [s])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32,c).m/2) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst32 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst32 {
 			break
 		}
-		c := v_0_0.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpTrunc64to32 {
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpTrunc64to32 {
 			break
 		}
-		v_0_1_0 := v_0_1.Args[0]
-		if v_0_1_0.Op != OpRsh64Ux64 {
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh64Ux64 {
 			break
 		}
-		_ = v_0_1_0.Args[1]
-		mul := v_0_1_0.Args[0]
+		_ = v_1_1_0.Args[1]
+		mul := v_1_1_0.Args[0]
 		if mul.Op != OpMul64 {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpRsh64Ux64 {
+		if mul_0.Op != OpZeroExt32to64 {
 			break
 		}
-		_ = mul_0.Args[1]
-		mul_0_0 := mul_0.Args[0]
-		if mul_0_0.Op != OpZeroExt32to64 {
+		if x != mul_0.Args[0] {
 			break
 		}
-		if x != mul_0_0.Args[0] {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
 			break
 		}
-		mul_0_1 := mul_0.Args[1]
-		if mul_0_1.Op != OpConst64 {
+		m := mul_1.AuxInt
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
 			break
 		}
-		if mul_0_1.AuxInt != 1 {
-			break
-		}
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst64 {
-			break
-		}
-		m := mul_1.AuxInt
-		v_0_1_0_1 := v_0_1_0.Args[1]
-		if v_0_1_0_1.Op != OpConst64 {
-			break
-		}
-		s := v_0_1_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32, c).m+1)/2) && s == 32+umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		s := v_1_1_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32, c).m/2) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -14700,26 +14643,27 @@ func rewriteValuegeneric_OpEq32_40(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (Rsh64Ux64 (ZeroExt32to64 x) (Const64 [1]))) (Const64 [s]))) (Const32 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32,c).m+1)/2) && s == 32+umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (ZeroExt32to64 x)) (Const64 [s]))) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32,c).m/2) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpTrunc64to32 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpTrunc64to32 {
 			break
 		}
-		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpRsh64Ux64 {
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh64Ux64 {
 			break
 		}
-		_ = v_0_0_0.Args[1]
-		mul := v_0_0_0.Args[0]
+		_ = v_1_0_0.Args[1]
+		mul := v_1_0_0.Args[0]
 		if mul.Op != OpMul64 {
 			break
 		}
@@ -14730,35 +14674,23 @@ func rewriteValuegeneric_OpEq32_40(v *Value) bool {
 		}
 		m := mul_0.AuxInt
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpRsh64Ux64 {
-			break
-		}
-		_ = mul_1.Args[1]
-		mul_1_0 := mul_1.Args[0]
-		if mul_1_0.Op != OpZeroExt32to64 {
-			break
-		}
-		if x != mul_1_0.Args[0] {
-			break
-		}
-		mul_1_1 := mul_1.Args[1]
-		if mul_1_1.Op != OpConst64 {
+		if mul_1.Op != OpZeroExt32to64 {
 			break
 		}
-		if mul_1_1.AuxInt != 1 {
+		if x != mul_1.Args[0] {
 			break
 		}
-		v_0_0_0_1 := v_0_0_0.Args[1]
-		if v_0_0_0_1.Op != OpConst64 {
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_0_0_1.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst32 {
+		s := v_1_0_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst32 {
 			break
 		}
-		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32, c).m+1)/2) && s == 32+umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32, c).m/2) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -14778,47 +14710,36 @@ func rewriteValuegeneric_OpEq32_40(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Rsh64Ux64 (ZeroExt32to64 x) (Const64 [1])) (Const64 [m])) (Const64 [s]))) (Const32 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32,c).m+1)/2) && s == 32+umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (ZeroExt32to64 x) (Const64 [m])) (Const64 [s]))) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32,c).m/2) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpTrunc64to32 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpTrunc64to32 {
 			break
 		}
-		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpRsh64Ux64 {
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh64Ux64 {
 			break
 		}
-		_ = v_0_0_0.Args[1]
-		mul := v_0_0_0.Args[0]
+		_ = v_1_0_0.Args[1]
+		mul := v_1_0_0.Args[0]
 		if mul.Op != OpMul64 {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpRsh64Ux64 {
-			break
-		}
-		_ = mul_0.Args[1]
-		mul_0_0 := mul_0.Args[0]
-		if mul_0_0.Op != OpZeroExt32to64 {
-			break
-		}
-		if x != mul_0_0.Args[0] {
-			break
-		}
-		mul_0_1 := mul_0.Args[1]
-		if mul_0_1.Op != OpConst64 {
+		if mul_0.Op != OpZeroExt32to64 {
 			break
 		}
-		if mul_0_1.AuxInt != 1 {
+		if x != mul_0.Args[0] {
 			break
 		}
 		mul_1 := mul.Args[1]
@@ -14826,17 +14747,17 @@ func rewriteValuegeneric_OpEq32_40(v *Value) bool {
 			break
 		}
 		m := mul_1.AuxInt
-		v_0_0_0_1 := v_0_0_0.Args[1]
-		if v_0_0_0_1.Op != OpConst64 {
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_0_0_1.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst32 {
+		s := v_1_0_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst32 {
 			break
 		}
-		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32, c).m+1)/2) && s == 32+umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32, c).m/2) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -14856,56 +14777,31 @@ func rewriteValuegeneric_OpEq32_40(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 (Avg64u (Lsh64x64 (ZeroExt32to64 x) (Const64 [32])) mul:(Mul64 (Const64 [m]) (ZeroExt32to64 x))) (Const64 [s])))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32,c).m) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (ZeroExt32to64 x)) (Const64 [s])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32,c).m/2) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
-			break
-		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst32 {
-			break
-		}
-		c := v_1_0.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpTrunc64to32 {
-			break
-		}
-		v_1_1_0 := v_1_1.Args[0]
-		if v_1_1_0.Op != OpRsh64Ux64 {
-			break
-		}
-		_ = v_1_1_0.Args[1]
-		v_1_1_0_0 := v_1_1_0.Args[0]
-		if v_1_1_0_0.Op != OpAvg64u {
-			break
-		}
-		_ = v_1_1_0_0.Args[1]
-		v_1_1_0_0_0 := v_1_1_0_0.Args[0]
-		if v_1_1_0_0_0.Op != OpLsh64x64 {
-			break
-		}
-		_ = v_1_1_0_0_0.Args[1]
-		v_1_1_0_0_0_0 := v_1_1_0_0_0.Args[0]
-		if v_1_1_0_0_0_0.Op != OpZeroExt32to64 {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		if x != v_1_1_0_0_0_0.Args[0] {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst32 {
 			break
 		}
-		v_1_1_0_0_0_1 := v_1_1_0_0_0.Args[1]
-		if v_1_1_0_0_0_1.Op != OpConst64 {
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpTrunc64to32 {
 			break
 		}
-		if v_1_1_0_0_0_1.AuxInt != 32 {
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh64Ux64 {
 			break
 		}
-		mul := v_1_1_0_0.Args[1]
+		_ = v_0_1_0.Args[1]
+		mul := v_0_1_0.Args[0]
 		if mul.Op != OpMul64 {
 			break
 		}
@@ -14922,12 +14818,12 @@ func rewriteValuegeneric_OpEq32_40(v *Value) bool {
 		if x != mul_1.Args[0] {
 			break
 		}
-		v_1_1_0_1 := v_1_1_0.Args[1]
-		if v_1_1_0_1.Op != OpConst64 {
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_1_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32, c).m) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		s := v_0_1_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32, c).m/2) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -14947,56 +14843,31 @@ func rewriteValuegeneric_OpEq32_40(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 (Avg64u (Lsh64x64 (ZeroExt32to64 x) (Const64 [32])) mul:(Mul64 (ZeroExt32to64 x) (Const64 [m]))) (Const64 [s])))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32,c).m) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (ZeroExt32to64 x) (Const64 [m])) (Const64 [s])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32,c).m/2) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
-			break
-		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst32 {
-			break
-		}
-		c := v_1_0.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpTrunc64to32 {
-			break
-		}
-		v_1_1_0 := v_1_1.Args[0]
-		if v_1_1_0.Op != OpRsh64Ux64 {
-			break
-		}
-		_ = v_1_1_0.Args[1]
-		v_1_1_0_0 := v_1_1_0.Args[0]
-		if v_1_1_0_0.Op != OpAvg64u {
-			break
-		}
-		_ = v_1_1_0_0.Args[1]
-		v_1_1_0_0_0 := v_1_1_0_0.Args[0]
-		if v_1_1_0_0_0.Op != OpLsh64x64 {
-			break
-		}
-		_ = v_1_1_0_0_0.Args[1]
-		v_1_1_0_0_0_0 := v_1_1_0_0_0.Args[0]
-		if v_1_1_0_0_0_0.Op != OpZeroExt32to64 {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		if x != v_1_1_0_0_0_0.Args[0] {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst32 {
 			break
 		}
-		v_1_1_0_0_0_1 := v_1_1_0_0_0.Args[1]
-		if v_1_1_0_0_0_1.Op != OpConst64 {
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpTrunc64to32 {
 			break
 		}
-		if v_1_1_0_0_0_1.AuxInt != 32 {
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh64Ux64 {
 			break
 		}
-		mul := v_1_1_0_0.Args[1]
+		_ = v_0_1_0.Args[1]
+		mul := v_0_1_0.Args[0]
 		if mul.Op != OpMul64 {
 			break
 		}
@@ -15013,12 +14884,12 @@ func rewriteValuegeneric_OpEq32_40(v *Value) bool {
 			break
 		}
 		m := mul_1.AuxInt
-		v_1_1_0_1 := v_1_1_0.Args[1]
-		if v_1_1_0_1.Op != OpConst64 {
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_1_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32, c).m) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		s := v_0_1_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32, c).m/2) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -15038,51 +14909,26 @@ func rewriteValuegeneric_OpEq32_40(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 x (Mul32 (Trunc64to32 (Rsh64Ux64 (Avg64u (Lsh64x64 (ZeroExt32to64 x) (Const64 [32])) mul:(Mul64 (Const64 [m]) (ZeroExt32to64 x))) (Const64 [s]))) (Const32 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32,c).m) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 (Mul32 (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (ZeroExt32to64 x)) (Const64 [s]))) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32,c).m/2) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
-			break
-		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpTrunc64to32 {
-			break
-		}
-		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpRsh64Ux64 {
-			break
-		}
-		_ = v_1_0_0.Args[1]
-		v_1_0_0_0 := v_1_0_0.Args[0]
-		if v_1_0_0_0.Op != OpAvg64u {
-			break
-		}
-		_ = v_1_0_0_0.Args[1]
-		v_1_0_0_0_0 := v_1_0_0_0.Args[0]
-		if v_1_0_0_0_0.Op != OpLsh64x64 {
-			break
-		}
-		_ = v_1_0_0_0_0.Args[1]
-		v_1_0_0_0_0_0 := v_1_0_0_0_0.Args[0]
-		if v_1_0_0_0_0_0.Op != OpZeroExt32to64 {
-			break
-		}
-		if x != v_1_0_0_0_0_0.Args[0] {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		v_1_0_0_0_0_1 := v_1_0_0_0_0.Args[1]
-		if v_1_0_0_0_0_1.Op != OpConst64 {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpTrunc64to32 {
 			break
 		}
-		if v_1_0_0_0_0_1.AuxInt != 32 {
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh64Ux64 {
 			break
 		}
-		mul := v_1_0_0_0.Args[1]
+		_ = v_0_0_0.Args[1]
+		mul := v_0_0_0.Args[0]
 		if mul.Op != OpMul64 {
 			break
 		}
@@ -15099,17 +14945,17 @@ func rewriteValuegeneric_OpEq32_40(v *Value) bool {
 		if x != mul_1.Args[0] {
 			break
 		}
-		v_1_0_0_1 := v_1_0_0.Args[1]
-		if v_1_0_0_1.Op != OpConst64 {
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_0_0_1.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst32 {
+		s := v_0_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst32 {
 			break
 		}
-		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32, c).m) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32, c).m/2) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -15129,56 +14975,26 @@ func rewriteValuegeneric_OpEq32_40(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	return false
-}
-func rewriteValuegeneric_OpEq32_50(v *Value) bool {
-	b := v.Block
-	typ := &b.Func.Config.Types
-	// match: (Eq32 x (Mul32 (Trunc64to32 (Rsh64Ux64 (Avg64u (Lsh64x64 (ZeroExt32to64 x) (Const64 [32])) mul:(Mul64 (ZeroExt32to64 x) (Const64 [m]))) (Const64 [s]))) (Const32 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32,c).m) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 (Mul32 (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (ZeroExt32to64 x) (Const64 [m])) (Const64 [s]))) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32,c).m/2) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul32 {
-			break
-		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpTrunc64to32 {
-			break
-		}
-		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpRsh64Ux64 {
-			break
-		}
-		_ = v_1_0_0.Args[1]
-		v_1_0_0_0 := v_1_0_0.Args[0]
-		if v_1_0_0_0.Op != OpAvg64u {
-			break
-		}
-		_ = v_1_0_0_0.Args[1]
-		v_1_0_0_0_0 := v_1_0_0_0.Args[0]
-		if v_1_0_0_0_0.Op != OpLsh64x64 {
-			break
-		}
-		_ = v_1_0_0_0_0.Args[1]
-		v_1_0_0_0_0_0 := v_1_0_0_0_0.Args[0]
-		if v_1_0_0_0_0_0.Op != OpZeroExt32to64 {
-			break
-		}
-		if x != v_1_0_0_0_0_0.Args[0] {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		v_1_0_0_0_0_1 := v_1_0_0_0_0.Args[1]
-		if v_1_0_0_0_0_1.Op != OpConst64 {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpTrunc64to32 {
 			break
 		}
-		if v_1_0_0_0_0_1.AuxInt != 32 {
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh64Ux64 {
 			break
 		}
-		mul := v_1_0_0_0.Args[1]
+		_ = v_0_0_0.Args[1]
+		mul := v_0_0_0.Args[0]
 		if mul.Op != OpMul64 {
 			break
 		}
@@ -15195,17 +15011,17 @@ func rewriteValuegeneric_OpEq32_50(v *Value) bool {
 			break
 		}
 		m := mul_1.AuxInt
-		v_1_0_0_1 := v_1_0_0.Args[1]
-		if v_1_0_0_1.Op != OpConst64 {
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_0_0_1.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst32 {
+		s := v_0_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst32 {
 			break
 		}
-		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32, c).m) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+umagic(32, c).m/2) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -15225,55 +15041,32 @@ func rewriteValuegeneric_OpEq32_50(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 (Avg64u (Lsh64x64 (ZeroExt32to64 x) (Const64 [32])) mul:(Mul64 (Const64 [m]) (ZeroExt32to64 x))) (Const64 [s])))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32,c).m) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (Rsh64Ux64 (ZeroExt32to64 x) (Const64 [1]))) (Const64 [s])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32,c).m+1)/2) && s == 32+umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
-			break
-		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst32 {
-			break
-		}
-		c := v_0_0.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpTrunc64to32 {
-			break
-		}
-		v_0_1_0 := v_0_1.Args[0]
-		if v_0_1_0.Op != OpRsh64Ux64 {
-			break
-		}
-		_ = v_0_1_0.Args[1]
-		v_0_1_0_0 := v_0_1_0.Args[0]
-		if v_0_1_0_0.Op != OpAvg64u {
-			break
-		}
-		_ = v_0_1_0_0.Args[1]
-		v_0_1_0_0_0 := v_0_1_0_0.Args[0]
-		if v_0_1_0_0_0.Op != OpLsh64x64 {
-			break
-		}
-		_ = v_0_1_0_0_0.Args[1]
-		v_0_1_0_0_0_0 := v_0_1_0_0_0.Args[0]
-		if v_0_1_0_0_0_0.Op != OpZeroExt32to64 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		if x != v_0_1_0_0_0_0.Args[0] {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst32 {
 			break
 		}
-		v_0_1_0_0_0_1 := v_0_1_0_0_0.Args[1]
-		if v_0_1_0_0_0_1.Op != OpConst64 {
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpTrunc64to32 {
 			break
 		}
-		if v_0_1_0_0_0_1.AuxInt != 32 {
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh64Ux64 {
 			break
 		}
-		mul := v_0_1_0_0.Args[1]
+		_ = v_1_1_0.Args[1]
+		mul := v_1_1_0.Args[0]
 		if mul.Op != OpMul64 {
 			break
 		}
@@ -15284,18 +15077,30 @@ func rewriteValuegeneric_OpEq32_50(v *Value) bool {
 		}
 		m := mul_0.AuxInt
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpZeroExt32to64 {
+		if mul_1.Op != OpRsh64Ux64 {
 			break
 		}
-		if x != mul_1.Args[0] {
+		_ = mul_1.Args[1]
+		mul_1_0 := mul_1.Args[0]
+		if mul_1_0.Op != OpZeroExt32to64 {
 			break
 		}
-		v_0_1_0_1 := v_0_1_0.Args[1]
-		if v_0_1_0_1.Op != OpConst64 {
+		if x != mul_1_0.Args[0] {
 			break
 		}
-		s := v_0_1_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32, c).m) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		mul_1_1 := mul_1.Args[1]
+		if mul_1_1.Op != OpConst64 {
+			break
+		}
+		if mul_1_1.AuxInt != 1 {
+			break
+		}
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32, c).m+1)/2) && s == 32+umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -15315,64 +15120,58 @@ func rewriteValuegeneric_OpEq32_50(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 (Avg64u (Lsh64x64 (ZeroExt32to64 x) (Const64 [32])) mul:(Mul64 (ZeroExt32to64 x) (Const64 [m]))) (Const64 [s])))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32,c).m) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	return false
+}
+func rewriteValuegeneric_OpEq32_40(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Rsh64Ux64 (ZeroExt32to64 x) (Const64 [1])) (Const64 [m])) (Const64 [s])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32,c).m+1)/2) && s == 32+umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst32 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst32 {
 			break
 		}
-		c := v_0_0.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpTrunc64to32 {
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpTrunc64to32 {
 			break
 		}
-		v_0_1_0 := v_0_1.Args[0]
-		if v_0_1_0.Op != OpRsh64Ux64 {
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh64Ux64 {
 			break
 		}
-		_ = v_0_1_0.Args[1]
-		v_0_1_0_0 := v_0_1_0.Args[0]
-		if v_0_1_0_0.Op != OpAvg64u {
+		_ = v_1_1_0.Args[1]
+		mul := v_1_1_0.Args[0]
+		if mul.Op != OpMul64 {
 			break
 		}
-		_ = v_0_1_0_0.Args[1]
-		v_0_1_0_0_0 := v_0_1_0_0.Args[0]
-		if v_0_1_0_0_0.Op != OpLsh64x64 {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpRsh64Ux64 {
 			break
 		}
-		_ = v_0_1_0_0_0.Args[1]
-		v_0_1_0_0_0_0 := v_0_1_0_0_0.Args[0]
-		if v_0_1_0_0_0_0.Op != OpZeroExt32to64 {
+		_ = mul_0.Args[1]
+		mul_0_0 := mul_0.Args[0]
+		if mul_0_0.Op != OpZeroExt32to64 {
 			break
 		}
-		if x != v_0_1_0_0_0_0.Args[0] {
+		if x != mul_0_0.Args[0] {
 			break
 		}
-		v_0_1_0_0_0_1 := v_0_1_0_0_0.Args[1]
-		if v_0_1_0_0_0_1.Op != OpConst64 {
-			break
-		}
-		if v_0_1_0_0_0_1.AuxInt != 32 {
-			break
-		}
-		mul := v_0_1_0_0.Args[1]
-		if mul.Op != OpMul64 {
-			break
-		}
-		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpZeroExt32to64 {
+		mul_0_1 := mul_0.Args[1]
+		if mul_0_1.Op != OpConst64 {
 			break
 		}
-		if x != mul_0.Args[0] {
+		if mul_0_1.AuxInt != 1 {
 			break
 		}
 		mul_1 := mul.Args[1]
@@ -15380,12 +15179,12 @@ func rewriteValuegeneric_OpEq32_50(v *Value) bool {
 			break
 		}
 		m := mul_1.AuxInt
-		v_0_1_0_1 := v_0_1_0.Args[1]
-		if v_0_1_0_1.Op != OpConst64 {
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_1_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32, c).m) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		s := v_1_1_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32, c).m+1)/2) && s == 32+umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -15405,50 +15204,27 @@ func rewriteValuegeneric_OpEq32_50(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Trunc64to32 (Rsh64Ux64 (Avg64u (Lsh64x64 (ZeroExt32to64 x) (Const64 [32])) mul:(Mul64 (Const64 [m]) (ZeroExt32to64 x))) (Const64 [s]))) (Const32 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32,c).m) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (Rsh64Ux64 (ZeroExt32to64 x) (Const64 [1]))) (Const64 [s]))) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32,c).m+1)/2) && s == 32+umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
-			break
-		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpTrunc64to32 {
-			break
-		}
-		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpRsh64Ux64 {
-			break
-		}
-		_ = v_0_0_0.Args[1]
-		v_0_0_0_0 := v_0_0_0.Args[0]
-		if v_0_0_0_0.Op != OpAvg64u {
-			break
-		}
-		_ = v_0_0_0_0.Args[1]
-		v_0_0_0_0_0 := v_0_0_0_0.Args[0]
-		if v_0_0_0_0_0.Op != OpLsh64x64 {
-			break
-		}
-		_ = v_0_0_0_0_0.Args[1]
-		v_0_0_0_0_0_0 := v_0_0_0_0_0.Args[0]
-		if v_0_0_0_0_0_0.Op != OpZeroExt32to64 {
-			break
-		}
-		if x != v_0_0_0_0_0_0.Args[0] {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		v_0_0_0_0_0_1 := v_0_0_0_0_0.Args[1]
-		if v_0_0_0_0_0_1.Op != OpConst64 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpTrunc64to32 {
 			break
 		}
-		if v_0_0_0_0_0_1.AuxInt != 32 {
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh64Ux64 {
 			break
 		}
-		mul := v_0_0_0_0.Args[1]
+		_ = v_1_0_0.Args[1]
+		mul := v_1_0_0.Args[0]
 		if mul.Op != OpMul64 {
 			break
 		}
@@ -15459,23 +15235,35 @@ func rewriteValuegeneric_OpEq32_50(v *Value) bool {
 		}
 		m := mul_0.AuxInt
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpZeroExt32to64 {
+		if mul_1.Op != OpRsh64Ux64 {
 			break
 		}
-		if x != mul_1.Args[0] {
+		_ = mul_1.Args[1]
+		mul_1_0 := mul_1.Args[0]
+		if mul_1_0.Op != OpZeroExt32to64 {
 			break
 		}
-		v_0_0_0_1 := v_0_0_0.Args[1]
-		if v_0_0_0_1.Op != OpConst64 {
+		if x != mul_1_0.Args[0] {
 			break
 		}
-		s := v_0_0_0_1.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst32 {
+		mul_1_1 := mul_1.Args[1]
+		if mul_1_1.Op != OpConst64 {
 			break
 		}
-		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32, c).m) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		if mul_1_1.AuxInt != 1 {
+			break
+		}
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst32 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32, c).m+1)/2) && s == 32+umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -15495,59 +15283,48 @@ func rewriteValuegeneric_OpEq32_50(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Mul32 (Trunc64to32 (Rsh64Ux64 (Avg64u (Lsh64x64 (ZeroExt32to64 x) (Const64 [32])) mul:(Mul64 (ZeroExt32to64 x) (Const64 [m]))) (Const64 [s]))) (Const32 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32,c).m) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// match: (Eq32 x (Mul32 (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Rsh64Ux64 (ZeroExt32to64 x) (Const64 [1])) (Const64 [m])) (Const64 [s]))) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32,c).m+1)/2) && s == 32+umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
 	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul32 {
-			break
-		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpTrunc64to32 {
-			break
-		}
-		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpRsh64Ux64 {
-			break
-		}
-		_ = v_0_0_0.Args[1]
-		v_0_0_0_0 := v_0_0_0.Args[0]
-		if v_0_0_0_0.Op != OpAvg64u {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		_ = v_0_0_0_0.Args[1]
-		v_0_0_0_0_0 := v_0_0_0_0.Args[0]
-		if v_0_0_0_0_0.Op != OpLsh64x64 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpTrunc64to32 {
 			break
 		}
-		_ = v_0_0_0_0_0.Args[1]
-		v_0_0_0_0_0_0 := v_0_0_0_0_0.Args[0]
-		if v_0_0_0_0_0_0.Op != OpZeroExt32to64 {
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh64Ux64 {
 			break
 		}
-		if x != v_0_0_0_0_0_0.Args[0] {
+		_ = v_1_0_0.Args[1]
+		mul := v_1_0_0.Args[0]
+		if mul.Op != OpMul64 {
 			break
 		}
-		v_0_0_0_0_0_1 := v_0_0_0_0_0.Args[1]
-		if v_0_0_0_0_0_1.Op != OpConst64 {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpRsh64Ux64 {
 			break
 		}
-		if v_0_0_0_0_0_1.AuxInt != 32 {
+		_ = mul_0.Args[1]
+		mul_0_0 := mul_0.Args[0]
+		if mul_0_0.Op != OpZeroExt32to64 {
 			break
 		}
-		mul := v_0_0_0_0.Args[1]
-		if mul.Op != OpMul64 {
+		if x != mul_0_0.Args[0] {
 			break
 		}
-		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpZeroExt32to64 {
+		mul_0_1 := mul_0.Args[1]
+		if mul_0_1.Op != OpConst64 {
 			break
 		}
-		if x != mul_0.Args[0] {
+		if mul_0_1.AuxInt != 1 {
 			break
 		}
 		mul_1 := mul.Args[1]
@@ -15555,17 +15332,17 @@ func rewriteValuegeneric_OpEq32_50(v *Value) bool {
 			break
 		}
 		m := mul_1.AuxInt
-		v_0_0_0_1 := v_0_0_0.Args[1]
-		if v_0_0_0_1.Op != OpConst64 {
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_0_0_1.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst32 {
+		s := v_1_0_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst32 {
 			break
 		}
-		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32, c).m) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32, c).m+1)/2) && s == 32+umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
 		v.reset(OpLeq32U)
@@ -15585,684 +15362,546 @@ func rewriteValuegeneric_OpEq32_50(v *Value) bool {
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 n (Lsh32x64 (Rsh32x64 (Add32 <t> n (Rsh32Ux64 <t> (Rsh32x64 <t> n (Const64 <typ.UInt64> [31])) (Const64 <typ.UInt64> [kbar]))) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])))
-	// cond: k > 0 && k < 31 && kbar == 32 - k
-	// result: (Eq32 (And32 <t> n (Const32 <t> [int64(1<<uint(k)-1)])) (Const32 <t> [0]))
+	// match: (Eq32 (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (Rsh64Ux64 (ZeroExt32to64 x) (Const64 [1]))) (Const64 [s])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32,c).m+1)/2) && s == 32+umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		n := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpLsh32x64 {
-			break
-		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh32x64 {
-			break
-		}
-		_ = v_1_0.Args[1]
-		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpAdd32 {
-			break
-		}
-		t := v_1_0_0.Type
-		_ = v_1_0_0.Args[1]
-		if n != v_1_0_0.Args[0] {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		v_1_0_0_1 := v_1_0_0.Args[1]
-		if v_1_0_0_1.Op != OpRsh32Ux64 {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst32 {
 			break
 		}
-		if v_1_0_0_1.Type != t {
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpTrunc64to32 {
 			break
 		}
-		_ = v_1_0_0_1.Args[1]
-		v_1_0_0_1_0 := v_1_0_0_1.Args[0]
-		if v_1_0_0_1_0.Op != OpRsh32x64 {
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh64Ux64 {
 			break
 		}
-		if v_1_0_0_1_0.Type != t {
+		_ = v_0_1_0.Args[1]
+		mul := v_0_1_0.Args[0]
+		if mul.Op != OpMul64 {
 			break
 		}
-		_ = v_1_0_0_1_0.Args[1]
-		if n != v_1_0_0_1_0.Args[0] {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
 			break
 		}
-		v_1_0_0_1_0_1 := v_1_0_0_1_0.Args[1]
-		if v_1_0_0_1_0_1.Op != OpConst64 {
+		m := mul_0.AuxInt
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpRsh64Ux64 {
 			break
 		}
-		if v_1_0_0_1_0_1.Type != typ.UInt64 {
+		_ = mul_1.Args[1]
+		mul_1_0 := mul_1.Args[0]
+		if mul_1_0.Op != OpZeroExt32to64 {
 			break
 		}
-		if v_1_0_0_1_0_1.AuxInt != 31 {
+		if x != mul_1_0.Args[0] {
 			break
 		}
-		v_1_0_0_1_1 := v_1_0_0_1.Args[1]
-		if v_1_0_0_1_1.Op != OpConst64 {
+		mul_1_1 := mul_1.Args[1]
+		if mul_1_1.Op != OpConst64 {
 			break
 		}
-		if v_1_0_0_1_1.Type != typ.UInt64 {
+		if mul_1_1.AuxInt != 1 {
 			break
 		}
-		kbar := v_1_0_0_1_1.AuxInt
-		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
 			break
 		}
-		if v_1_0_1.Type != typ.UInt64 {
+		s := v_0_1_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32, c).m+1)/2) && s == 32+umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
-		k := v_1_0_1.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst64 {
-			break
-		}
-		if v_1_1.Type != typ.UInt64 {
-			break
-		}
-		if v_1_1.AuxInt != k {
-			break
-		}
-		if !(k > 0 && k < 31 && kbar == 32-k) {
-			break
-		}
-		v.reset(OpEq32)
-		v0 := b.NewValue0(v.Pos, OpAnd32, t)
-		v0.AddArg(n)
-		v1 := b.NewValue0(v.Pos, OpConst32, t)
-		v1.AuxInt = int64(1<<uint(k) - 1)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v2.AuxInt = int64(int32(udivisible(32, c).m))
+		v1.AddArg(v2)
+		v1.AddArg(x)
 		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(32 - udivisible(32, c).k)
+		v0.AddArg(v3)
 		v.AddArg(v0)
-		v2 := b.NewValue0(v.Pos, OpConst32, t)
-		v2.AuxInt = 0
-		v.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(udivisible(32, c).max))
+		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 n (Lsh32x64 (Rsh32x64 (Add32 <t> (Rsh32Ux64 <t> (Rsh32x64 <t> n (Const64 <typ.UInt64> [31])) (Const64 <typ.UInt64> [kbar])) n) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])))
-	// cond: k > 0 && k < 31 && kbar == 32 - k
-	// result: (Eq32 (And32 <t> n (Const32 <t> [int64(1<<uint(k)-1)])) (Const32 <t> [0]))
+	// match: (Eq32 (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Rsh64Ux64 (ZeroExt32to64 x) (Const64 [1])) (Const64 [m])) (Const64 [s])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32,c).m+1)/2) && s == 32+umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		n := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpLsh32x64 {
-			break
-		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh32x64 {
-			break
-		}
-		_ = v_1_0.Args[1]
-		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpAdd32 {
-			break
-		}
-		t := v_1_0_0.Type
-		_ = v_1_0_0.Args[1]
-		v_1_0_0_0 := v_1_0_0.Args[0]
-		if v_1_0_0_0.Op != OpRsh32Ux64 {
-			break
-		}
-		if v_1_0_0_0.Type != t {
-			break
-		}
-		_ = v_1_0_0_0.Args[1]
-		v_1_0_0_0_0 := v_1_0_0_0.Args[0]
-		if v_1_0_0_0_0.Op != OpRsh32x64 {
-			break
-		}
-		if v_1_0_0_0_0.Type != t {
-			break
-		}
-		_ = v_1_0_0_0_0.Args[1]
-		if n != v_1_0_0_0_0.Args[0] {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		v_1_0_0_0_0_1 := v_1_0_0_0_0.Args[1]
-		if v_1_0_0_0_0_1.Op != OpConst64 {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst32 {
 			break
 		}
-		if v_1_0_0_0_0_1.Type != typ.UInt64 {
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpTrunc64to32 {
 			break
 		}
-		if v_1_0_0_0_0_1.AuxInt != 31 {
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh64Ux64 {
 			break
 		}
-		v_1_0_0_0_1 := v_1_0_0_0.Args[1]
-		if v_1_0_0_0_1.Op != OpConst64 {
+		_ = v_0_1_0.Args[1]
+		mul := v_0_1_0.Args[0]
+		if mul.Op != OpMul64 {
 			break
 		}
-		if v_1_0_0_0_1.Type != typ.UInt64 {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpRsh64Ux64 {
 			break
 		}
-		kbar := v_1_0_0_0_1.AuxInt
-		if n != v_1_0_0.Args[1] {
+		_ = mul_0.Args[1]
+		mul_0_0 := mul_0.Args[0]
+		if mul_0_0.Op != OpZeroExt32to64 {
 			break
 		}
-		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		if x != mul_0_0.Args[0] {
 			break
 		}
-		if v_1_0_1.Type != typ.UInt64 {
+		mul_0_1 := mul_0.Args[1]
+		if mul_0_1.Op != OpConst64 {
 			break
 		}
-		k := v_1_0_1.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst64 {
+		if mul_0_1.AuxInt != 1 {
 			break
 		}
-		if v_1_1.Type != typ.UInt64 {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
 			break
 		}
-		if v_1_1.AuxInt != k {
+		m := mul_1.AuxInt
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
 			break
 		}
-		if !(k > 0 && k < 31 && kbar == 32-k) {
+		s := v_0_1_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32, c).m+1)/2) && s == 32+umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
-		v.reset(OpEq32)
-		v0 := b.NewValue0(v.Pos, OpAnd32, t)
-		v0.AddArg(n)
-		v1 := b.NewValue0(v.Pos, OpConst32, t)
-		v1.AuxInt = int64(1<<uint(k) - 1)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v2.AuxInt = int64(int32(udivisible(32, c).m))
+		v1.AddArg(v2)
+		v1.AddArg(x)
 		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(32 - udivisible(32, c).k)
+		v0.AddArg(v3)
 		v.AddArg(v0)
-		v2 := b.NewValue0(v.Pos, OpConst32, t)
-		v2.AuxInt = 0
-		v.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(udivisible(32, c).max))
+		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Lsh32x64 (Rsh32x64 (Add32 <t> n (Rsh32Ux64 <t> (Rsh32x64 <t> n (Const64 <typ.UInt64> [31])) (Const64 <typ.UInt64> [kbar]))) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])) n)
-	// cond: k > 0 && k < 31 && kbar == 32 - k
-	// result: (Eq32 (And32 <t> n (Const32 <t> [int64(1<<uint(k)-1)])) (Const32 <t> [0]))
+	// match: (Eq32 (Mul32 (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Const64 [m]) (Rsh64Ux64 (ZeroExt32to64 x) (Const64 [1]))) (Const64 [s]))) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32,c).m+1)/2) && s == 32+umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		n := v.Args[1]
+		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpLsh32x64 {
+		if v_0.Op != OpMul32 {
 			break
 		}
 		_ = v_0.Args[1]
 		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh32x64 {
+		if v_0_0.Op != OpTrunc64to32 {
 			break
 		}
-		_ = v_0_0.Args[1]
 		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpAdd32 {
+		if v_0_0_0.Op != OpRsh64Ux64 {
 			break
 		}
-		t := v_0_0_0.Type
 		_ = v_0_0_0.Args[1]
-		if n != v_0_0_0.Args[0] {
-			break
-		}
-		v_0_0_0_1 := v_0_0_0.Args[1]
-		if v_0_0_0_1.Op != OpRsh32Ux64 {
-			break
-		}
-		if v_0_0_0_1.Type != t {
-			break
-		}
-		_ = v_0_0_0_1.Args[1]
-		v_0_0_0_1_0 := v_0_0_0_1.Args[0]
-		if v_0_0_0_1_0.Op != OpRsh32x64 {
-			break
-		}
-		if v_0_0_0_1_0.Type != t {
-			break
-		}
-		_ = v_0_0_0_1_0.Args[1]
-		if n != v_0_0_0_1_0.Args[0] {
+		mul := v_0_0_0.Args[0]
+		if mul.Op != OpMul64 {
 			break
 		}
-		v_0_0_0_1_0_1 := v_0_0_0_1_0.Args[1]
-		if v_0_0_0_1_0_1.Op != OpConst64 {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
 			break
 		}
-		if v_0_0_0_1_0_1.Type != typ.UInt64 {
+		m := mul_0.AuxInt
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpRsh64Ux64 {
 			break
 		}
-		if v_0_0_0_1_0_1.AuxInt != 31 {
+		_ = mul_1.Args[1]
+		mul_1_0 := mul_1.Args[0]
+		if mul_1_0.Op != OpZeroExt32to64 {
 			break
 		}
-		v_0_0_0_1_1 := v_0_0_0_1.Args[1]
-		if v_0_0_0_1_1.Op != OpConst64 {
+		if x != mul_1_0.Args[0] {
 			break
 		}
-		if v_0_0_0_1_1.Type != typ.UInt64 {
+		mul_1_1 := mul_1.Args[1]
+		if mul_1_1.Op != OpConst64 {
 			break
 		}
-		kbar := v_0_0_0_1_1.AuxInt
-		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
+		if mul_1_1.AuxInt != 1 {
 			break
 		}
-		if v_0_0_1.Type != typ.UInt64 {
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		k := v_0_0_1.AuxInt
+		s := v_0_0_0_1.AuxInt
 		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst64 {
-			break
-		}
-		if v_0_1.Type != typ.UInt64 {
-			break
-		}
-		if v_0_1.AuxInt != k {
+		if v_0_1.Op != OpConst32 {
 			break
 		}
-		if !(k > 0 && k < 31 && kbar == 32-k) {
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32, c).m+1)/2) && s == 32+umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
-		v.reset(OpEq32)
-		v0 := b.NewValue0(v.Pos, OpAnd32, t)
-		v0.AddArg(n)
-		v1 := b.NewValue0(v.Pos, OpConst32, t)
-		v1.AuxInt = int64(1<<uint(k) - 1)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v2.AuxInt = int64(int32(udivisible(32, c).m))
+		v1.AddArg(v2)
+		v1.AddArg(x)
 		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(32 - udivisible(32, c).k)
+		v0.AddArg(v3)
 		v.AddArg(v0)
-		v2 := b.NewValue0(v.Pos, OpConst32, t)
-		v2.AuxInt = 0
-		v.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(udivisible(32, c).max))
+		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 (Lsh32x64 (Rsh32x64 (Add32 <t> (Rsh32Ux64 <t> (Rsh32x64 <t> n (Const64 <typ.UInt64> [31])) (Const64 <typ.UInt64> [kbar])) n) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])) n)
-	// cond: k > 0 && k < 31 && kbar == 32 - k
-	// result: (Eq32 (And32 <t> n (Const32 <t> [int64(1<<uint(k)-1)])) (Const32 <t> [0]))
+	// match: (Eq32 (Mul32 (Trunc64to32 (Rsh64Ux64 mul:(Mul64 (Rsh64Ux64 (ZeroExt32to64 x) (Const64 [1])) (Const64 [m])) (Const64 [s]))) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32,c).m+1)/2) && s == 32+umagic(32,c).s-2 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		n := v.Args[1]
+		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpLsh32x64 {
+		if v_0.Op != OpMul32 {
 			break
 		}
 		_ = v_0.Args[1]
 		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh32x64 {
+		if v_0_0.Op != OpTrunc64to32 {
 			break
 		}
-		_ = v_0_0.Args[1]
 		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpAdd32 {
+		if v_0_0_0.Op != OpRsh64Ux64 {
 			break
 		}
-		t := v_0_0_0.Type
 		_ = v_0_0_0.Args[1]
-		v_0_0_0_0 := v_0_0_0.Args[0]
-		if v_0_0_0_0.Op != OpRsh32Ux64 {
-			break
-		}
-		if v_0_0_0_0.Type != t {
-			break
-		}
-		_ = v_0_0_0_0.Args[1]
-		v_0_0_0_0_0 := v_0_0_0_0.Args[0]
-		if v_0_0_0_0_0.Op != OpRsh32x64 {
-			break
-		}
-		if v_0_0_0_0_0.Type != t {
-			break
-		}
-		_ = v_0_0_0_0_0.Args[1]
-		if n != v_0_0_0_0_0.Args[0] {
-			break
-		}
-		v_0_0_0_0_0_1 := v_0_0_0_0_0.Args[1]
-		if v_0_0_0_0_0_1.Op != OpConst64 {
+		mul := v_0_0_0.Args[0]
+		if mul.Op != OpMul64 {
 			break
 		}
-		if v_0_0_0_0_0_1.Type != typ.UInt64 {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpRsh64Ux64 {
 			break
 		}
-		if v_0_0_0_0_0_1.AuxInt != 31 {
+		_ = mul_0.Args[1]
+		mul_0_0 := mul_0.Args[0]
+		if mul_0_0.Op != OpZeroExt32to64 {
 			break
 		}
-		v_0_0_0_0_1 := v_0_0_0_0.Args[1]
-		if v_0_0_0_0_1.Op != OpConst64 {
+		if x != mul_0_0.Args[0] {
 			break
 		}
-		if v_0_0_0_0_1.Type != typ.UInt64 {
+		mul_0_1 := mul_0.Args[1]
+		if mul_0_1.Op != OpConst64 {
 			break
 		}
-		kbar := v_0_0_0_0_1.AuxInt
-		if n != v_0_0_0.Args[1] {
+		if mul_0_1.AuxInt != 1 {
 			break
 		}
-		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
 			break
 		}
-		if v_0_0_1.Type != typ.UInt64 {
+		m := mul_1.AuxInt
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		k := v_0_0_1.AuxInt
+		s := v_0_0_0_1.AuxInt
 		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst64 {
-			break
-		}
-		if v_0_1.Type != typ.UInt64 {
-			break
-		}
-		if v_0_1.AuxInt != k {
+		if v_0_1.Op != OpConst32 {
 			break
 		}
-		if !(k > 0 && k < 31 && kbar == 32-k) {
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<31+(umagic(32, c).m+1)/2) && s == 32+umagic(32, c).s-2 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
-		v.reset(OpEq32)
-		v0 := b.NewValue0(v.Pos, OpAnd32, t)
-		v0.AddArg(n)
-		v1 := b.NewValue0(v.Pos, OpConst32, t)
-		v1.AuxInt = int64(1<<uint(k) - 1)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v2.AuxInt = int64(int32(udivisible(32, c).m))
+		v1.AddArg(v2)
+		v1.AddArg(x)
 		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(32 - udivisible(32, c).k)
+		v0.AddArg(v3)
 		v.AddArg(v0)
-		v2 := b.NewValue0(v.Pos, OpConst32, t)
-		v2.AuxInt = 0
-		v.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(udivisible(32, c).max))
+		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq32 s:(Sub32 x y) (Const32 [0]))
-	// cond: s.Uses == 1
-	// result: (Eq32 x y)
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 (Avg64u (Lsh64x64 (ZeroExt32to64 x) (Const64 [32])) mul:(Mul64 (Const64 [m]) (ZeroExt32to64 x))) (Const64 [s])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32,c).m) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
-		s := v.Args[0]
-		if s.Op != OpSub32 {
-			break
-		}
-		y := s.Args[1]
-		x := s.Args[0]
+		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpConst32 {
+		if v_1.Op != OpMul32 {
 			break
 		}
-		if v_1.AuxInt != 0 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst32 {
 			break
 		}
-		if !(s.Uses == 1) {
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpTrunc64to32 {
 			break
 		}
-		v.reset(OpEq32)
-		v.AddArg(x)
-		v.AddArg(y)
-		return true
-	}
-	return false
-}
-func rewriteValuegeneric_OpEq32_60(v *Value) bool {
-	// match: (Eq32 (Const32 [0]) s:(Sub32 x y))
-	// cond: s.Uses == 1
-	// result: (Eq32 x y)
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst32 {
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh64Ux64 {
 			break
 		}
-		if v_0.AuxInt != 0 {
+		_ = v_1_1_0.Args[1]
+		v_1_1_0_0 := v_1_1_0.Args[0]
+		if v_1_1_0_0.Op != OpAvg64u {
 			break
 		}
-		s := v.Args[1]
-		if s.Op != OpSub32 {
+		_ = v_1_1_0_0.Args[1]
+		v_1_1_0_0_0 := v_1_1_0_0.Args[0]
+		if v_1_1_0_0_0.Op != OpLsh64x64 {
 			break
 		}
-		y := s.Args[1]
-		x := s.Args[0]
-		if !(s.Uses == 1) {
+		_ = v_1_1_0_0_0.Args[1]
+		v_1_1_0_0_0_0 := v_1_1_0_0_0.Args[0]
+		if v_1_1_0_0_0_0.Op != OpZeroExt32to64 {
 			break
 		}
-		v.reset(OpEq32)
-		v.AddArg(x)
-		v.AddArg(y)
-		return true
-	}
-	return false
-}
-func rewriteValuegeneric_OpEq32F_0(v *Value) bool {
-	// match: (Eq32F (Const32F [c]) (Const32F [d]))
-	// cond:
-	// result: (ConstBool [b2i(auxTo32F(c) == auxTo32F(d))])
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst32F {
+		if x != v_1_1_0_0_0_0.Args[0] {
 			break
 		}
-		c := v_0.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst32F {
+		v_1_1_0_0_0_1 := v_1_1_0_0_0.Args[1]
+		if v_1_1_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		d := v_1.AuxInt
-		v.reset(OpConstBool)
-		v.AuxInt = b2i(auxTo32F(c) == auxTo32F(d))
-		return true
-	}
-	// match: (Eq32F (Const32F [d]) (Const32F [c]))
-	// cond:
-	// result: (ConstBool [b2i(auxTo32F(c) == auxTo32F(d))])
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst32F {
+		if v_1_1_0_0_0_1.AuxInt != 32 {
 			break
 		}
-		d := v_0.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst32F {
+		mul := v_1_1_0_0.Args[1]
+		if mul.Op != OpMul64 {
 			break
 		}
-		c := v_1.AuxInt
-		v.reset(OpConstBool)
-		v.AuxInt = b2i(auxTo32F(c) == auxTo32F(d))
-		return true
-	}
-	return false
-}
-func rewriteValuegeneric_OpEq64_0(v *Value) bool {
-	b := v.Block
-	typ := &b.Func.Config.Types
-	// match: (Eq64 x x)
-	// cond:
-	// result: (ConstBool [1])
-	for {
-		x := v.Args[1]
-		if x != v.Args[0] {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
 			break
 		}
-		v.reset(OpConstBool)
-		v.AuxInt = 1
-		return true
-	}
-	// match: (Eq64 (Const64 <t> [c]) (Add64 (Const64 <t> [d]) x))
-	// cond:
-	// result: (Eq64 (Const64 <t> [c-d]) x)
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst64 {
+		m := mul_0.AuxInt
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpZeroExt32to64 {
 			break
 		}
-		t := v_0.Type
-		c := v_0.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpAdd64 {
+		if x != mul_1.Args[0] {
 			break
 		}
-		x := v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst64 {
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
 			break
 		}
-		if v_1_0.Type != t {
+		s := v_1_1_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32, c).m) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
-		d := v_1_0.AuxInt
-		v.reset(OpEq64)
-		v0 := b.NewValue0(v.Pos, OpConst64, t)
-		v0.AuxInt = c - d
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v2.AuxInt = int64(int32(udivisible(32, c).m))
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(32 - udivisible(32, c).k)
+		v0.AddArg(v3)
 		v.AddArg(v0)
-		v.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(udivisible(32, c).max))
+		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq64 (Const64 <t> [c]) (Add64 x (Const64 <t> [d])))
-	// cond:
-	// result: (Eq64 (Const64 <t> [c-d]) x)
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 (Avg64u (Lsh64x64 (ZeroExt32to64 x) (Const64 [32])) mul:(Mul64 (ZeroExt32to64 x) (Const64 [m]))) (Const64 [s])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32,c).m) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst64 {
-			break
-		}
-		t := v_0.Type
-		c := v_0.AuxInt
+		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpAdd64 {
+		if v_1.Op != OpMul32 {
 			break
 		}
 		_ = v_1.Args[1]
-		x := v_1.Args[0]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst32 {
+			break
+		}
+		c := v_1_0.AuxInt
 		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst64 {
+		if v_1_1.Op != OpTrunc64to32 {
 			break
 		}
-		if v_1_1.Type != t {
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh64Ux64 {
 			break
 		}
-		d := v_1_1.AuxInt
-		v.reset(OpEq64)
-		v0 := b.NewValue0(v.Pos, OpConst64, t)
-		v0.AuxInt = c - d
-		v.AddArg(v0)
-		v.AddArg(x)
-		return true
-	}
-	// match: (Eq64 (Add64 (Const64 <t> [d]) x) (Const64 <t> [c]))
-	// cond:
-	// result: (Eq64 (Const64 <t> [c-d]) x)
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpAdd64 {
+		_ = v_1_1_0.Args[1]
+		v_1_1_0_0 := v_1_1_0.Args[0]
+		if v_1_1_0_0.Op != OpAvg64u {
 			break
 		}
-		x := v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst64 {
+		_ = v_1_1_0_0.Args[1]
+		v_1_1_0_0_0 := v_1_1_0_0.Args[0]
+		if v_1_1_0_0_0.Op != OpLsh64x64 {
 			break
 		}
-		t := v_0_0.Type
-		d := v_0_0.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst64 {
+		_ = v_1_1_0_0_0.Args[1]
+		v_1_1_0_0_0_0 := v_1_1_0_0_0.Args[0]
+		if v_1_1_0_0_0_0.Op != OpZeroExt32to64 {
 			break
 		}
-		if v_1.Type != t {
+		if x != v_1_1_0_0_0_0.Args[0] {
 			break
 		}
-		c := v_1.AuxInt
-		v.reset(OpEq64)
-		v0 := b.NewValue0(v.Pos, OpConst64, t)
-		v0.AuxInt = c - d
-		v.AddArg(v0)
-		v.AddArg(x)
-		return true
-	}
-	// match: (Eq64 (Add64 x (Const64 <t> [d])) (Const64 <t> [c]))
-	// cond:
-	// result: (Eq64 (Const64 <t> [c-d]) x)
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpAdd64 {
+		v_1_1_0_0_0_1 := v_1_1_0_0_0.Args[1]
+		if v_1_1_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		_ = v_0.Args[1]
-		x := v_0.Args[0]
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst64 {
+		if v_1_1_0_0_0_1.AuxInt != 32 {
 			break
 		}
-		t := v_0_1.Type
-		d := v_0_1.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst64 {
+		mul := v_1_1_0_0.Args[1]
+		if mul.Op != OpMul64 {
 			break
 		}
-		if v_1.Type != t {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpZeroExt32to64 {
 			break
 		}
-		c := v_1.AuxInt
-		v.reset(OpEq64)
-		v0 := b.NewValue0(v.Pos, OpConst64, t)
-		v0.AuxInt = c - d
-		v.AddArg(v0)
-		v.AddArg(x)
-		return true
-	}
-	// match: (Eq64 (Const64 [c]) (Const64 [d]))
-	// cond:
-	// result: (ConstBool [b2i(c == d)])
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst64 {
+		if x != mul_0.Args[0] {
 			break
 		}
-		c := v_0.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst64 {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
 			break
 		}
-		d := v_1.AuxInt
-		v.reset(OpConstBool)
-		v.AuxInt = b2i(c == d)
-		return true
-	}
-	// match: (Eq64 (Const64 [d]) (Const64 [c]))
-	// cond:
-	// result: (ConstBool [b2i(c == d)])
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst64 {
+		m := mul_1.AuxInt
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
 			break
 		}
-		d := v_0.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst64 {
+		s := v_1_1_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32, c).m) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
-		c := v_1.AuxInt
-		v.reset(OpConstBool)
-		v.AuxInt = b2i(c == d)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v2.AuxInt = int64(int32(udivisible(32, c).m))
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(32 - udivisible(32, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(udivisible(32, c).max))
+		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq64 x (Mul64 (Const64 [c]) (Rsh64Ux64 mul:(Hmul64u (Const64 [m]) x) (Const64 [s]))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64,c).m/2) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 x (Mul32 (Trunc64to32 (Rsh64Ux64 (Avg64u (Lsh64x64 (ZeroExt32to64 x) (Const64 [32])) mul:(Mul64 (Const64 [m]) (ZeroExt32to64 x))) (Const64 [s]))) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32,c).m) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
 		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpMul64 {
+		if v_1.Op != OpMul32 {
 			break
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst64 {
+		if v_1_0.Op != OpTrunc64to32 {
 			break
 		}
-		c := v_1_0.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpRsh64Ux64 {
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh64Ux64 {
 			break
 		}
-		_ = v_1_1.Args[1]
-		mul := v_1_1.Args[0]
-		if mul.Op != OpHmul64u {
+		_ = v_1_0_0.Args[1]
+		v_1_0_0_0 := v_1_0_0.Args[0]
+		if v_1_0_0_0.Op != OpAvg64u {
+			break
+		}
+		_ = v_1_0_0_0.Args[1]
+		v_1_0_0_0_0 := v_1_0_0_0.Args[0]
+		if v_1_0_0_0_0.Op != OpLsh64x64 {
+			break
+		}
+		_ = v_1_0_0_0_0.Args[1]
+		v_1_0_0_0_0_0 := v_1_0_0_0_0.Args[0]
+		if v_1_0_0_0_0_0.Op != OpZeroExt32to64 {
+			break
+		}
+		if x != v_1_0_0_0_0_0.Args[0] {
+			break
+		}
+		v_1_0_0_0_0_1 := v_1_0_0_0_0.Args[1]
+		if v_1_0_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_0_0_0_1.AuxInt != 32 {
+			break
+		}
+		mul := v_1_0_0_0.Args[1]
+		if mul.Op != OpMul64 {
 			break
 		}
 		_ = mul.Args[1]
@@ -16271,238 +15910,189 @@ func rewriteValuegeneric_OpEq64_0(v *Value) bool {
 			break
 		}
 		m := mul_0.AuxInt
-		if x != mul.Args[1] {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpZeroExt32to64 {
 			break
 		}
-		v_1_1_1 := v_1_1.Args[1]
-		if v_1_1_1.Op != OpConst64 {
+		if x != mul_1.Args[0] {
 			break
 		}
-		s := v_1_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64, c).m/2) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		s := v_1_0_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst32 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32, c).m) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v2.AuxInt = int64(int32(udivisible(32, c).m))
 		v1.AddArg(v2)
 		v1.AddArg(x)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(32 - udivisible(32, c).k)
 		v0.AddArg(v3)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(udivisible(32, c).max))
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq64 x (Mul64 (Const64 [c]) (Rsh64Ux64 mul:(Hmul64u x (Const64 [m])) (Const64 [s]))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64,c).m/2) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	return false
+}
+func rewriteValuegeneric_OpEq32_50(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
+	// match: (Eq32 x (Mul32 (Trunc64to32 (Rsh64Ux64 (Avg64u (Lsh64x64 (ZeroExt32to64 x) (Const64 [32])) mul:(Mul64 (ZeroExt32to64 x) (Const64 [m]))) (Const64 [s]))) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32,c).m) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
 		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpMul64 {
+		if v_1.Op != OpMul32 {
 			break
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst64 {
+		if v_1_0.Op != OpTrunc64to32 {
 			break
 		}
-		c := v_1_0.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpRsh64Ux64 {
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh64Ux64 {
 			break
 		}
-		_ = v_1_1.Args[1]
-		mul := v_1_1.Args[0]
-		if mul.Op != OpHmul64u {
+		_ = v_1_0_0.Args[1]
+		v_1_0_0_0 := v_1_0_0.Args[0]
+		if v_1_0_0_0.Op != OpAvg64u {
 			break
 		}
-		_ = mul.Args[1]
-		if x != mul.Args[0] {
+		_ = v_1_0_0_0.Args[1]
+		v_1_0_0_0_0 := v_1_0_0_0.Args[0]
+		if v_1_0_0_0_0.Op != OpLsh64x64 {
 			break
 		}
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst64 {
+		_ = v_1_0_0_0_0.Args[1]
+		v_1_0_0_0_0_0 := v_1_0_0_0_0.Args[0]
+		if v_1_0_0_0_0_0.Op != OpZeroExt32to64 {
 			break
 		}
-		m := mul_1.AuxInt
-		v_1_1_1 := v_1_1.Args[1]
-		if v_1_1_1.Op != OpConst64 {
-			break
-		}
-		s := v_1_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64, c).m/2) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		if x != v_1_0_0_0_0_0.Args[0] {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
-		v1.AddArg(v2)
-		v1.AddArg(x)
-		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
-		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
-		return true
-	}
-	// match: (Eq64 x (Mul64 (Rsh64Ux64 mul:(Hmul64u (Const64 [m]) x) (Const64 [s])) (Const64 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64,c).m/2) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
-	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul64 {
+		v_1_0_0_0_0_1 := v_1_0_0_0_0.Args[1]
+		if v_1_0_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh64Ux64 {
+		if v_1_0_0_0_0_1.AuxInt != 32 {
 			break
 		}
-		_ = v_1_0.Args[1]
-		mul := v_1_0.Args[0]
-		if mul.Op != OpHmul64u {
+		mul := v_1_0_0_0.Args[1]
+		if mul.Op != OpMul64 {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst64 {
+		if mul_0.Op != OpZeroExt32to64 {
 			break
 		}
-		m := mul_0.AuxInt
-		if x != mul.Args[1] {
+		if x != mul_0.Args[0] {
 			break
 		}
-		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
 			break
 		}
-		s := v_1_0_1.AuxInt
+		m := mul_1.AuxInt
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_0_1.AuxInt
 		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst64 {
+		if v_1_1.Op != OpConst32 {
 			break
 		}
 		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64, c).m/2) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32, c).m) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v2.AuxInt = int64(int32(udivisible(32, c).m))
 		v1.AddArg(v2)
 		v1.AddArg(x)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(32 - udivisible(32, c).k)
 		v0.AddArg(v3)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(udivisible(32, c).max))
 		v.AddArg(v4)
 		return true
 	}
-	return false
-}
-func rewriteValuegeneric_OpEq64_10(v *Value) bool {
-	b := v.Block
-	typ := &b.Func.Config.Types
-	// match: (Eq64 x (Mul64 (Rsh64Ux64 mul:(Hmul64u x (Const64 [m])) (Const64 [s])) (Const64 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64,c).m/2) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 (Avg64u (Lsh64x64 (ZeroExt32to64 x) (Const64 [32])) mul:(Mul64 (Const64 [m]) (ZeroExt32to64 x))) (Const64 [s])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32,c).m) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
-		x := v.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpMul64 {
-			break
-		}
-		_ = v_1.Args[1]
-		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh64Ux64 {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
 			break
 		}
-		_ = v_1_0.Args[1]
-		mul := v_1_0.Args[0]
-		if mul.Op != OpHmul64u {
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst32 {
 			break
 		}
-		_ = mul.Args[1]
-		if x != mul.Args[0] {
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpTrunc64to32 {
 			break
 		}
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst64 {
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh64Ux64 {
 			break
 		}
-		m := mul_1.AuxInt
-		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		_ = v_0_1_0.Args[1]
+		v_0_1_0_0 := v_0_1_0.Args[0]
+		if v_0_1_0_0.Op != OpAvg64u {
 			break
 		}
-		s := v_1_0_1.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst64 {
+		_ = v_0_1_0_0.Args[1]
+		v_0_1_0_0_0 := v_0_1_0_0.Args[0]
+		if v_0_1_0_0_0.Op != OpLsh64x64 {
 			break
 		}
-		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64, c).m/2) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		_ = v_0_1_0_0_0.Args[1]
+		v_0_1_0_0_0_0 := v_0_1_0_0_0.Args[0]
+		if v_0_1_0_0_0_0.Op != OpZeroExt32to64 {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
-		v1.AddArg(v2)
-		v1.AddArg(x)
-		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
-		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
-		return true
-	}
-	// match: (Eq64 (Mul64 (Const64 [c]) (Rsh64Ux64 mul:(Hmul64u (Const64 [m]) x) (Const64 [s]))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64,c).m/2) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
-	for {
-		x := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpMul64 {
+		if x != v_0_1_0_0_0_0.Args[0] {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst64 {
+		v_0_1_0_0_0_1 := v_0_1_0_0_0.Args[1]
+		if v_0_1_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		c := v_0_0.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpRsh64Ux64 {
+		if v_0_1_0_0_0_1.AuxInt != 32 {
 			break
 		}
-		_ = v_0_1.Args[1]
-		mul := v_0_1.Args[0]
-		if mul.Op != OpHmul64u {
+		mul := v_0_1_0_0.Args[1]
+		if mul.Op != OpMul64 {
 			break
 		}
 		_ = mul.Args[1]
@@ -16511,109 +16101,173 @@ func rewriteValuegeneric_OpEq64_10(v *Value) bool {
 			break
 		}
 		m := mul_0.AuxInt
-		if x != mul.Args[1] {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpZeroExt32to64 {
 			break
 		}
-		v_0_1_1 := v_0_1.Args[1]
-		if v_0_1_1.Op != OpConst64 {
+		if x != mul_1.Args[0] {
 			break
 		}
-		s := v_0_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64, c).m/2) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		s := v_0_1_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32, c).m) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v2.AuxInt = int64(int32(udivisible(32, c).m))
 		v1.AddArg(v2)
 		v1.AddArg(x)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(32 - udivisible(32, c).k)
 		v0.AddArg(v3)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(udivisible(32, c).max))
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq64 (Mul64 (Const64 [c]) (Rsh64Ux64 mul:(Hmul64u x (Const64 [m])) (Const64 [s]))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64,c).m/2) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 (Mul32 (Const32 [c]) (Trunc64to32 (Rsh64Ux64 (Avg64u (Lsh64x64 (ZeroExt32to64 x) (Const64 [32])) mul:(Mul64 (ZeroExt32to64 x) (Const64 [m]))) (Const64 [s])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32,c).m) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
 		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpMul64 {
+		if v_0.Op != OpMul32 {
 			break
 		}
 		_ = v_0.Args[1]
 		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst64 {
+		if v_0_0.Op != OpConst32 {
 			break
 		}
 		c := v_0_0.AuxInt
 		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpRsh64Ux64 {
+		if v_0_1.Op != OpTrunc64to32 {
 			break
 		}
-		_ = v_0_1.Args[1]
-		mul := v_0_1.Args[0]
-		if mul.Op != OpHmul64u {
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh64Ux64 {
 			break
 		}
-		_ = mul.Args[1]
-		if x != mul.Args[0] {
+		_ = v_0_1_0.Args[1]
+		v_0_1_0_0 := v_0_1_0.Args[0]
+		if v_0_1_0_0.Op != OpAvg64u {
 			break
 		}
-		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst64 {
+		_ = v_0_1_0_0.Args[1]
+		v_0_1_0_0_0 := v_0_1_0_0.Args[0]
+		if v_0_1_0_0_0.Op != OpLsh64x64 {
 			break
 		}
-		m := mul_1.AuxInt
-		v_0_1_1 := v_0_1.Args[1]
-		if v_0_1_1.Op != OpConst64 {
+		_ = v_0_1_0_0_0.Args[1]
+		v_0_1_0_0_0_0 := v_0_1_0_0_0.Args[0]
+		if v_0_1_0_0_0_0.Op != OpZeroExt32to64 {
 			break
 		}
-		s := v_0_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64, c).m/2) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		if x != v_0_1_0_0_0_0.Args[0] {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
-		v1.AddArg(v2)
-		v1.AddArg(x)
-		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
-		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v_0_1_0_0_0_1 := v_0_1_0_0_0.Args[1]
+		if v_0_1_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_0_0_0_1.AuxInt != 32 {
+			break
+		}
+		mul := v_0_1_0_0.Args[1]
+		if mul.Op != OpMul64 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpZeroExt32to64 {
+			break
+		}
+		if x != mul_0.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32, c).m) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v2.AuxInt = int64(int32(udivisible(32, c).m))
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(32 - udivisible(32, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(udivisible(32, c).max))
+		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq64 (Mul64 (Rsh64Ux64 mul:(Hmul64u (Const64 [m]) x) (Const64 [s])) (Const64 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64,c).m/2) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 (Mul32 (Trunc64to32 (Rsh64Ux64 (Avg64u (Lsh64x64 (ZeroExt32to64 x) (Const64 [32])) mul:(Mul64 (Const64 [m]) (ZeroExt32to64 x))) (Const64 [s]))) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32,c).m) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
 		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpMul64 {
+		if v_0.Op != OpMul32 {
 			break
 		}
 		_ = v_0.Args[1]
 		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh64Ux64 {
+		if v_0_0.Op != OpTrunc64to32 {
 			break
 		}
-		_ = v_0_0.Args[1]
-		mul := v_0_0.Args[0]
-		if mul.Op != OpHmul64u {
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_0_0_0.Args[1]
+		v_0_0_0_0 := v_0_0_0.Args[0]
+		if v_0_0_0_0.Op != OpAvg64u {
+			break
+		}
+		_ = v_0_0_0_0.Args[1]
+		v_0_0_0_0_0 := v_0_0_0_0.Args[0]
+		if v_0_0_0_0_0.Op != OpLsh64x64 {
+			break
+		}
+		_ = v_0_0_0_0_0.Args[1]
+		v_0_0_0_0_0_0 := v_0_0_0_0_0.Args[0]
+		if v_0_0_0_0_0_0.Op != OpZeroExt32to64 {
+			break
+		}
+		if x != v_0_0_0_0_0_0.Args[0] {
+			break
+		}
+		v_0_0_0_0_0_1 := v_0_0_0_0_0.Args[1]
+		if v_0_0_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_0_0_0_1.AuxInt != 32 {
+			break
+		}
+		mul := v_0_0_0_0.Args[1]
+		if mul.Op != OpMul64 {
 			break
 		}
 		_ = mul.Args[1]
@@ -16622,60 +16276,96 @@ func rewriteValuegeneric_OpEq64_10(v *Value) bool {
 			break
 		}
 		m := mul_0.AuxInt
-		if x != mul.Args[1] {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpZeroExt32to64 {
 			break
 		}
-		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
+		if x != mul_1.Args[0] {
 			break
 		}
-		s := v_0_0_1.AuxInt
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_0_1.AuxInt
 		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst64 {
+		if v_0_1.Op != OpConst32 {
 			break
 		}
 		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64, c).m/2) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32, c).m) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v2.AuxInt = int64(int32(udivisible(32, c).m))
 		v1.AddArg(v2)
 		v1.AddArg(x)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(32 - udivisible(32, c).k)
 		v0.AddArg(v3)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(udivisible(32, c).max))
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq64 (Mul64 (Rsh64Ux64 mul:(Hmul64u x (Const64 [m])) (Const64 [s])) (Const64 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64,c).m/2) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 (Mul32 (Trunc64to32 (Rsh64Ux64 (Avg64u (Lsh64x64 (ZeroExt32to64 x) (Const64 [32])) mul:(Mul64 (ZeroExt32to64 x) (Const64 [m]))) (Const64 [s]))) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32,c).m) && s == 32+umagic(32,c).s-1 && x.Op != OpConst32 && udivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(32-udivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(udivisible(32,c).max))]) )
 	for {
 		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpMul64 {
+		if v_0.Op != OpMul32 {
 			break
 		}
 		_ = v_0.Args[1]
 		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh64Ux64 {
+		if v_0_0.Op != OpTrunc64to32 {
 			break
 		}
-		_ = v_0_0.Args[1]
-		mul := v_0_0.Args[0]
-		if mul.Op != OpHmul64u {
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_0_0_0.Args[1]
+		v_0_0_0_0 := v_0_0_0.Args[0]
+		if v_0_0_0_0.Op != OpAvg64u {
+			break
+		}
+		_ = v_0_0_0_0.Args[1]
+		v_0_0_0_0_0 := v_0_0_0_0.Args[0]
+		if v_0_0_0_0_0.Op != OpLsh64x64 {
+			break
+		}
+		_ = v_0_0_0_0_0.Args[1]
+		v_0_0_0_0_0_0 := v_0_0_0_0_0.Args[0]
+		if v_0_0_0_0_0_0.Op != OpZeroExt32to64 {
+			break
+		}
+		if x != v_0_0_0_0_0_0.Args[0] {
+			break
+		}
+		v_0_0_0_0_0_1 := v_0_0_0_0_0.Args[1]
+		if v_0_0_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_0_0_0_1.AuxInt != 32 {
+			break
+		}
+		mul := v_0_0_0_0.Args[1]
+		if mul.Op != OpMul64 {
 			break
 		}
 		_ = mul.Args[1]
-		if x != mul.Args[0] {
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpZeroExt32to64 {
+			break
+		}
+		if x != mul_0.Args[0] {
 			break
 		}
 		mul_1 := mul.Args[1]
@@ -16683,59 +16373,64 @@ func rewriteValuegeneric_OpEq64_10(v *Value) bool {
 			break
 		}
 		m := mul_1.AuxInt
-		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		s := v_0_0_1.AuxInt
+		s := v_0_0_0_1.AuxInt
 		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst64 {
+		if v_0_1.Op != OpConst32 {
 			break
 		}
 		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64, c).m/2) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(32, c).m) && s == 32+umagic(32, c).s-1 && x.Op != OpConst32 && udivisibleOK(32, c)) {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v2.AuxInt = int64(int32(udivisible(32, c).m))
 		v1.AddArg(v2)
 		v1.AddArg(x)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(32 - udivisible(32, c).k)
 		v0.AddArg(v3)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(udivisible(32, c).max))
 		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq64 x (Mul64 (Const64 [c]) (Rsh64Ux64 mul:(Hmul64u (Const64 [m]) (Rsh64Ux64 x (Const64 [1]))) (Const64 [s]))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64,c).m+1)/2) && s == umagic(64,c).s-2 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Sub32 (Rsh64x64 mul:(Mul64 (Const64 [m]) (SignExt32to64 x)) (Const64 [s])) (Rsh64x64 (SignExt32to64 x) (Const64 [63])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(32,c).m) && s == 32+smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
 		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpMul64 {
+		if v_1.Op != OpMul32 {
 			break
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst64 {
+		if v_1_0.Op != OpConst32 {
 			break
 		}
 		c := v_1_0.AuxInt
 		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpRsh64Ux64 {
+		if v_1_1.Op != OpSub32 {
 			break
 		}
 		_ = v_1_1.Args[1]
-		mul := v_1_1.Args[0]
-		if mul.Op != OpHmul64u {
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_1_0.Args[1]
+		mul := v_1_1_0.Args[0]
+		if mul.Op != OpMul64 {
 			break
 		}
 		_ = mul.Args[1]
@@ -16745,134 +16440,176 @@ func rewriteValuegeneric_OpEq64_10(v *Value) bool {
 		}
 		m := mul_0.AuxInt
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpRsh64Ux64 {
+		if mul_1.Op != OpSignExt32to64 {
 			break
 		}
-		_ = mul_1.Args[1]
 		if x != mul_1.Args[0] {
 			break
 		}
-		mul_1_1 := mul_1.Args[1]
-		if mul_1_1.Op != OpConst64 {
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
 			break
 		}
-		if mul_1_1.AuxInt != 1 {
+		s := v_1_1_0_1.AuxInt
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpRsh64x64 {
 			break
 		}
-		v_1_1_1 := v_1_1.Args[1]
-		if v_1_1_1.Op != OpConst64 {
+		_ = v_1_1_1.Args[1]
+		v_1_1_1_0 := v_1_1_1.Args[0]
+		if v_1_1_1_0.Op != OpSignExt32to64 {
 			break
 		}
-		s := v_1_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64, c).m+1)/2) && s == umagic(64, c).s-2 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		if x != v_1_1_1_0.Args[0] {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1_1_1.AuxInt != 63 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(32, c).m) && s == 32+smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq64 x (Mul64 (Const64 [c]) (Rsh64Ux64 mul:(Hmul64u (Rsh64Ux64 x (Const64 [1])) (Const64 [m])) (Const64 [s]))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64,c).m+1)/2) && s == umagic(64,c).s-2 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Sub32 (Rsh64x64 mul:(Mul64 (SignExt32to64 x) (Const64 [m])) (Const64 [s])) (Rsh64x64 (SignExt32to64 x) (Const64 [63])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(32,c).m) && s == 32+smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
 		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpMul64 {
+		if v_1.Op != OpMul32 {
 			break
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst64 {
+		if v_1_0.Op != OpConst32 {
 			break
 		}
 		c := v_1_0.AuxInt
 		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpRsh64Ux64 {
+		if v_1_1.Op != OpSub32 {
 			break
 		}
 		_ = v_1_1.Args[1]
-		mul := v_1_1.Args[0]
-		if mul.Op != OpHmul64u {
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_1_0.Args[1]
+		mul := v_1_1_0.Args[0]
+		if mul.Op != OpMul64 {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpRsh64Ux64 {
+		if mul_0.Op != OpSignExt32to64 {
 			break
 		}
-		_ = mul_0.Args[1]
 		if x != mul_0.Args[0] {
 			break
 		}
-		mul_0_1 := mul_0.Args[1]
-		if mul_0_1.Op != OpConst64 {
-			break
-		}
-		if mul_0_1.AuxInt != 1 {
-			break
-		}
 		mul_1 := mul.Args[1]
 		if mul_1.Op != OpConst64 {
 			break
 		}
 		m := mul_1.AuxInt
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_0_1.AuxInt
 		v_1_1_1 := v_1_1.Args[1]
-		if v_1_1_1.Op != OpConst64 {
+		if v_1_1_1.Op != OpRsh64x64 {
 			break
 		}
-		s := v_1_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64, c).m+1)/2) && s == umagic(64, c).s-2 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		_ = v_1_1_1.Args[1]
+		v_1_1_1_0 := v_1_1_1.Args[0]
+		if v_1_1_1_0.Op != OpSignExt32to64 {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		if x != v_1_1_1_0.Args[0] {
+			break
+		}
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1_1_1.AuxInt != 63 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(32, c).m) && s == 32+smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq64 x (Mul64 (Rsh64Ux64 mul:(Hmul64u (Const64 [m]) (Rsh64Ux64 x (Const64 [1]))) (Const64 [s])) (Const64 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64,c).m+1)/2) && s == umagic(64,c).s-2 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 x (Mul32 (Sub32 (Rsh64x64 mul:(Mul64 (Const64 [m]) (SignExt32to64 x)) (Const64 [s])) (Rsh64x64 (SignExt32to64 x) (Const64 [63]))) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(32,c).m) && s == 32+smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
 		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpMul64 {
+		if v_1.Op != OpMul32 {
 			break
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh64Ux64 {
+		if v_1_0.Op != OpSub32 {
 			break
 		}
 		_ = v_1_0.Args[1]
-		mul := v_1_0.Args[0]
-		if mul.Op != OpHmul64u {
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0_0.Args[1]
+		mul := v_1_0_0.Args[0]
+		if mul.Op != OpMul64 {
 			break
 		}
 		_ = mul.Args[1]
@@ -16882,143 +16619,185 @@ func rewriteValuegeneric_OpEq64_10(v *Value) bool {
 		}
 		m := mul_0.AuxInt
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpRsh64Ux64 {
+		if mul_1.Op != OpSignExt32to64 {
 			break
 		}
-		_ = mul_1.Args[1]
 		if x != mul_1.Args[0] {
 			break
 		}
-		mul_1_1 := mul_1.Args[1]
-		if mul_1_1.Op != OpConst64 {
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
 			break
 		}
-		if mul_1_1.AuxInt != 1 {
+		s := v_1_0_0_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpRsh64x64 {
 			break
 		}
-		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		_ = v_1_0_1.Args[1]
+		v_1_0_1_0 := v_1_0_1.Args[0]
+		if v_1_0_1_0.Op != OpSignExt32to64 {
+			break
+		}
+		if x != v_1_0_1_0.Args[0] {
+			break
+		}
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1_1.AuxInt != 63 {
 			break
 		}
-		s := v_1_0_1.AuxInt
 		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst64 {
+		if v_1_1.Op != OpConst32 {
 			break
 		}
 		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64, c).m+1)/2) && s == umagic(64, c).s-2 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(32, c).m) && s == 32+smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq64 x (Mul64 (Rsh64Ux64 mul:(Hmul64u (Rsh64Ux64 x (Const64 [1])) (Const64 [m])) (Const64 [s])) (Const64 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64,c).m+1)/2) && s == umagic(64,c).s-2 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 x (Mul32 (Sub32 (Rsh64x64 mul:(Mul64 (SignExt32to64 x) (Const64 [m])) (Const64 [s])) (Rsh64x64 (SignExt32to64 x) (Const64 [63]))) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(32,c).m) && s == 32+smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
 		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpMul64 {
+		if v_1.Op != OpMul32 {
 			break
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh64Ux64 {
+		if v_1_0.Op != OpSub32 {
 			break
 		}
 		_ = v_1_0.Args[1]
-		mul := v_1_0.Args[0]
-		if mul.Op != OpHmul64u {
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0_0.Args[1]
+		mul := v_1_0_0.Args[0]
+		if mul.Op != OpMul64 {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpRsh64Ux64 {
+		if mul_0.Op != OpSignExt32to64 {
 			break
 		}
-		_ = mul_0.Args[1]
 		if x != mul_0.Args[0] {
 			break
 		}
-		mul_0_1 := mul_0.Args[1]
-		if mul_0_1.Op != OpConst64 {
-			break
-		}
-		if mul_0_1.AuxInt != 1 {
-			break
-		}
 		mul_1 := mul.Args[1]
 		if mul_1.Op != OpConst64 {
 			break
 		}
 		m := mul_1.AuxInt
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_0_1.AuxInt
 		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		if v_1_0_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0_1.Args[1]
+		v_1_0_1_0 := v_1_0_1.Args[0]
+		if v_1_0_1_0.Op != OpSignExt32to64 {
+			break
+		}
+		if x != v_1_0_1_0.Args[0] {
+			break
+		}
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1_1.AuxInt != 63 {
 			break
 		}
-		s := v_1_0_1.AuxInt
 		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst64 {
+		if v_1_1.Op != OpConst32 {
 			break
 		}
 		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64, c).m+1)/2) && s == umagic(64, c).s-2 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(32, c).m) && s == 32+smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq64 (Mul64 (Const64 [c]) (Rsh64Ux64 mul:(Hmul64u (Const64 [m]) (Rsh64Ux64 x (Const64 [1]))) (Const64 [s]))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64,c).m+1)/2) && s == umagic(64,c).s-2 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 (Mul32 (Const32 [c]) (Sub32 (Rsh64x64 mul:(Mul64 (Const64 [m]) (SignExt32to64 x)) (Const64 [s])) (Rsh64x64 (SignExt32to64 x) (Const64 [63])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(32,c).m) && s == 32+smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpMul64 {
+		if v_0.Op != OpMul32 {
 			break
 		}
 		_ = v_0.Args[1]
 		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst64 {
+		if v_0_0.Op != OpConst32 {
 			break
 		}
 		c := v_0_0.AuxInt
 		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpRsh64Ux64 {
+		if v_0_1.Op != OpSub32 {
 			break
 		}
 		_ = v_0_1.Args[1]
-		mul := v_0_1.Args[0]
-		if mul.Op != OpHmul64u {
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_1_0.Args[1]
+		mul := v_0_1_0.Args[0]
+		if mul.Op != OpMul64 {
 			break
 		}
 		_ = mul.Args[1]
@@ -17028,88 +16807,101 @@ func rewriteValuegeneric_OpEq64_10(v *Value) bool {
 		}
 		m := mul_0.AuxInt
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpRsh64Ux64 {
+		if mul_1.Op != OpSignExt32to64 {
 			break
 		}
-		_ = mul_1.Args[1]
 		if x != mul_1.Args[0] {
 			break
 		}
-		mul_1_1 := mul_1.Args[1]
-		if mul_1_1.Op != OpConst64 {
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
 			break
 		}
-		if mul_1_1.AuxInt != 1 {
+		s := v_0_1_0_1.AuxInt
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpRsh64x64 {
 			break
 		}
-		v_0_1_1 := v_0_1.Args[1]
-		if v_0_1_1.Op != OpConst64 {
+		_ = v_0_1_1.Args[1]
+		v_0_1_1_0 := v_0_1_1.Args[0]
+		if v_0_1_1_0.Op != OpSignExt32to64 {
 			break
 		}
-		s := v_0_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64, c).m+1)/2) && s == umagic(64, c).s-2 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		if x != v_0_1_1_0.Args[0] {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 63 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(32, c).m) && s == 32+smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
 	return false
 }
-func rewriteValuegeneric_OpEq64_20(v *Value) bool {
+func rewriteValuegeneric_OpEq32_60(v *Value) bool {
 	b := v.Block
 	typ := &b.Func.Config.Types
-	// match: (Eq64 (Mul64 (Const64 [c]) (Rsh64Ux64 mul:(Hmul64u (Rsh64Ux64 x (Const64 [1])) (Const64 [m])) (Const64 [s]))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64,c).m+1)/2) && s == umagic(64,c).s-2 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 (Mul32 (Const32 [c]) (Sub32 (Rsh64x64 mul:(Mul64 (SignExt32to64 x) (Const64 [m])) (Const64 [s])) (Rsh64x64 (SignExt32to64 x) (Const64 [63])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(32,c).m) && s == 32+smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpMul64 {
+		if v_0.Op != OpMul32 {
 			break
 		}
 		_ = v_0.Args[1]
 		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst64 {
+		if v_0_0.Op != OpConst32 {
 			break
 		}
 		c := v_0_0.AuxInt
 		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpRsh64Ux64 {
+		if v_0_1.Op != OpSub32 {
 			break
 		}
 		_ = v_0_1.Args[1]
-		mul := v_0_1.Args[0]
-		if mul.Op != OpHmul64u {
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh64x64 {
 			break
 		}
-		_ = mul.Args[1]
-		mul_0 := mul.Args[0]
-		if mul_0.Op != OpRsh64Ux64 {
-			break
-		}
-		_ = mul_0.Args[1]
-		if x != mul_0.Args[0] {
+		_ = v_0_1_0.Args[1]
+		mul := v_0_1_0.Args[0]
+		if mul.Op != OpMul64 {
 			break
 		}
-		mul_0_1 := mul_0.Args[1]
-		if mul_0_1.Op != OpConst64 {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpSignExt32to64 {
 			break
 		}
-		if mul_0_1.AuxInt != 1 {
+		if x != mul_0.Args[0] {
 			break
 		}
 		mul_1 := mul.Args[1]
@@ -17117,48 +16909,77 @@ func rewriteValuegeneric_OpEq64_20(v *Value) bool {
 			break
 		}
 		m := mul_1.AuxInt
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_0_1.AuxInt
 		v_0_1_1 := v_0_1.Args[1]
-		if v_0_1_1.Op != OpConst64 {
+		if v_0_1_1.Op != OpRsh64x64 {
 			break
 		}
-		s := v_0_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64, c).m+1)/2) && s == umagic(64, c).s-2 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		_ = v_0_1_1.Args[1]
+		v_0_1_1_0 := v_0_1_1.Args[0]
+		if v_0_1_1_0.Op != OpSignExt32to64 {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		if x != v_0_1_1_0.Args[0] {
+			break
+		}
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 63 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(32, c).m) && s == 32+smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq64 (Mul64 (Rsh64Ux64 mul:(Hmul64u (Const64 [m]) (Rsh64Ux64 x (Const64 [1]))) (Const64 [s])) (Const64 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64,c).m+1)/2) && s == umagic(64,c).s-2 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 (Mul32 (Sub32 (Rsh64x64 mul:(Mul64 (Const64 [m]) (SignExt32to64 x)) (Const64 [s])) (Rsh64x64 (SignExt32to64 x) (Const64 [63]))) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(32,c).m) && s == 32+smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpMul64 {
+		if v_0.Op != OpMul32 {
 			break
 		}
 		_ = v_0.Args[1]
 		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh64Ux64 {
+		if v_0_0.Op != OpSub32 {
 			break
 		}
 		_ = v_0_0.Args[1]
-		mul := v_0_0.Args[0]
-		if mul.Op != OpHmul64u {
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0_0.Args[1]
+		mul := v_0_0_0.Args[0]
+		if mul.Op != OpMul64 {
 			break
 		}
 		_ = mul.Args[1]
@@ -17168,218 +16989,269 @@ func rewriteValuegeneric_OpEq64_20(v *Value) bool {
 		}
 		m := mul_0.AuxInt
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpRsh64Ux64 {
+		if mul_1.Op != OpSignExt32to64 {
 			break
 		}
-		_ = mul_1.Args[1]
 		if x != mul_1.Args[0] {
 			break
 		}
-		mul_1_1 := mul_1.Args[1]
-		if mul_1_1.Op != OpConst64 {
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		if mul_1_1.AuxInt != 1 {
+		s := v_0_0_0_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpRsh64x64 {
 			break
 		}
-		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
+		_ = v_0_0_1.Args[1]
+		v_0_0_1_0 := v_0_0_1.Args[0]
+		if v_0_0_1_0.Op != OpSignExt32to64 {
+			break
+		}
+		if x != v_0_0_1_0.Args[0] {
+			break
+		}
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1_1.AuxInt != 63 {
 			break
 		}
-		s := v_0_0_1.AuxInt
 		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst64 {
+		if v_0_1.Op != OpConst32 {
 			break
 		}
 		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64, c).m+1)/2) && s == umagic(64, c).s-2 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(32, c).m) && s == 32+smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq64 (Mul64 (Rsh64Ux64 mul:(Hmul64u (Rsh64Ux64 x (Const64 [1])) (Const64 [m])) (Const64 [s])) (Const64 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64,c).m+1)/2) && s == umagic(64,c).s-2 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 (Mul32 (Sub32 (Rsh64x64 mul:(Mul64 (SignExt32to64 x) (Const64 [m])) (Const64 [s])) (Rsh64x64 (SignExt32to64 x) (Const64 [63]))) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(32,c).m) && s == 32+smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpMul64 {
+		if v_0.Op != OpMul32 {
 			break
 		}
 		_ = v_0.Args[1]
 		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh64Ux64 {
+		if v_0_0.Op != OpSub32 {
 			break
 		}
 		_ = v_0_0.Args[1]
-		mul := v_0_0.Args[0]
-		if mul.Op != OpHmul64u {
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0_0.Args[1]
+		mul := v_0_0_0.Args[0]
+		if mul.Op != OpMul64 {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpRsh64Ux64 {
+		if mul_0.Op != OpSignExt32to64 {
 			break
 		}
-		_ = mul_0.Args[1]
 		if x != mul_0.Args[0] {
 			break
 		}
-		mul_0_1 := mul_0.Args[1]
-		if mul_0_1.Op != OpConst64 {
-			break
-		}
-		if mul_0_1.AuxInt != 1 {
-			break
-		}
 		mul_1 := mul.Args[1]
 		if mul_1.Op != OpConst64 {
 			break
 		}
 		m := mul_1.AuxInt
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_0_1.AuxInt
 		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
+		if v_0_0_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0_1.Args[1]
+		v_0_0_1_0 := v_0_0_1.Args[0]
+		if v_0_0_1_0.Op != OpSignExt32to64 {
+			break
+		}
+		if x != v_0_0_1_0.Args[0] {
+			break
+		}
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1_1.AuxInt != 63 {
 			break
 		}
-		s := v_0_0_1.AuxInt
 		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst64 {
+		if v_0_1.Op != OpConst32 {
 			break
 		}
 		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64, c).m+1)/2) && s == umagic(64, c).s-2 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(32, c).m) && s == 32+smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq64 x (Mul64 (Const64 [c]) (Rsh64Ux64 (Avg64u x mul:(Hmul64u (Const64 [m]) x)) (Const64 [s]))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64,c).m) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Sub32 (Rsh32x64 mul:(Hmul32 (Const32 [m]) x) (Const64 [s])) (Rsh32x64 x (Const64 [31])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m/2)) && s == smagic(32,c).s-1 && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
 		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpMul64 {
+		if v_1.Op != OpMul32 {
 			break
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst64 {
+		if v_1_0.Op != OpConst32 {
 			break
 		}
 		c := v_1_0.AuxInt
 		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpRsh64Ux64 {
+		if v_1_1.Op != OpSub32 {
 			break
 		}
 		_ = v_1_1.Args[1]
 		v_1_1_0 := v_1_1.Args[0]
-		if v_1_1_0.Op != OpAvg64u {
+		if v_1_1_0.Op != OpRsh32x64 {
 			break
 		}
 		_ = v_1_1_0.Args[1]
-		if x != v_1_1_0.Args[0] {
-			break
-		}
-		mul := v_1_1_0.Args[1]
-		if mul.Op != OpHmul64u {
+		mul := v_1_1_0.Args[0]
+		if mul.Op != OpHmul32 {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst64 {
+		if mul_0.Op != OpConst32 {
 			break
 		}
 		m := mul_0.AuxInt
 		if x != mul.Args[1] {
 			break
 		}
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_0_1.AuxInt
 		v_1_1_1 := v_1_1.Args[1]
-		if v_1_1_1.Op != OpConst64 {
+		if v_1_1_1.Op != OpRsh32x64 {
 			break
 		}
-		s := v_1_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64, c).m) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		_ = v_1_1_1.Args[1]
+		if x != v_1_1_1.Args[0] {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1_1_1.AuxInt != 31 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m/2)) && s == smagic(32, c).s-1 && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq64 x (Mul64 (Const64 [c]) (Rsh64Ux64 (Avg64u x mul:(Hmul64u x (Const64 [m]))) (Const64 [s]))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64,c).m) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Sub32 (Rsh32x64 mul:(Hmul32 x (Const32 [m])) (Const64 [s])) (Rsh32x64 x (Const64 [31])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m/2)) && s == smagic(32,c).s-1 && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
 		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpMul64 {
+		if v_1.Op != OpMul32 {
 			break
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst64 {
+		if v_1_0.Op != OpConst32 {
 			break
 		}
 		c := v_1_0.AuxInt
 		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpRsh64Ux64 {
+		if v_1_1.Op != OpSub32 {
 			break
 		}
 		_ = v_1_1.Args[1]
 		v_1_1_0 := v_1_1.Args[0]
-		if v_1_1_0.Op != OpAvg64u {
+		if v_1_1_0.Op != OpRsh32x64 {
 			break
 		}
 		_ = v_1_1_0.Args[1]
-		if x != v_1_1_0.Args[0] {
-			break
-		}
-		mul := v_1_1_0.Args[1]
-		if mul.Op != OpHmul64u {
+		mul := v_1_1_0.Args[0]
+		if mul.Op != OpHmul32 {
 			break
 		}
 		_ = mul.Args[1]
@@ -17387,128 +17259,162 @@ func rewriteValuegeneric_OpEq64_20(v *Value) bool {
 			break
 		}
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst64 {
+		if mul_1.Op != OpConst32 {
 			break
 		}
 		m := mul_1.AuxInt
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_0_1.AuxInt
 		v_1_1_1 := v_1_1.Args[1]
-		if v_1_1_1.Op != OpConst64 {
+		if v_1_1_1.Op != OpRsh32x64 {
 			break
 		}
-		s := v_1_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64, c).m) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		_ = v_1_1_1.Args[1]
+		if x != v_1_1_1.Args[0] {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
-		v1.AddArg(v2)
-		v1.AddArg(x)
-		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
-		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1_1_1.AuxInt != 31 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m/2)) && s == smagic(32, c).s-1 && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq64 x (Mul64 (Rsh64Ux64 (Avg64u x mul:(Hmul64u (Const64 [m]) x)) (Const64 [s])) (Const64 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64,c).m) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 x (Mul32 (Sub32 (Rsh32x64 mul:(Hmul32 (Const32 [m]) x) (Const64 [s])) (Rsh32x64 x (Const64 [31]))) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m/2)) && s == smagic(32,c).s-1 && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
 		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpMul64 {
+		if v_1.Op != OpMul32 {
 			break
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh64Ux64 {
+		if v_1_0.Op != OpSub32 {
 			break
 		}
 		_ = v_1_0.Args[1]
 		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpAvg64u {
+		if v_1_0_0.Op != OpRsh32x64 {
 			break
 		}
 		_ = v_1_0_0.Args[1]
-		if x != v_1_0_0.Args[0] {
-			break
-		}
-		mul := v_1_0_0.Args[1]
-		if mul.Op != OpHmul64u {
+		mul := v_1_0_0.Args[0]
+		if mul.Op != OpHmul32 {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst64 {
+		if mul_0.Op != OpConst32 {
 			break
 		}
 		m := mul_0.AuxInt
 		if x != mul.Args[1] {
 			break
 		}
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_0_1.AuxInt
 		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		if v_1_0_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_1_0_1.Args[1]
+		if x != v_1_0_1.Args[0] {
+			break
+		}
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1_1.AuxInt != 31 {
 			break
 		}
-		s := v_1_0_1.AuxInt
 		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst64 {
+		if v_1_1.Op != OpConst32 {
 			break
 		}
 		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64, c).m) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m/2)) && s == smagic(32, c).s-1 && x.Op != OpConst32 && sdivisibleOK(32, c)) {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq64 x (Mul64 (Rsh64Ux64 (Avg64u x mul:(Hmul64u x (Const64 [m]))) (Const64 [s])) (Const64 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64,c).m) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 x (Mul32 (Sub32 (Rsh32x64 mul:(Hmul32 x (Const32 [m])) (Const64 [s])) (Rsh32x64 x (Const64 [31]))) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m/2)) && s == smagic(32,c).s-1 && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
 		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpMul64 {
+		if v_1.Op != OpMul32 {
 			break
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh64Ux64 {
+		if v_1_0.Op != OpSub32 {
 			break
 		}
 		_ = v_1_0.Args[1]
 		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpAvg64u {
+		if v_1_0_0.Op != OpRsh32x64 {
 			break
 		}
 		_ = v_1_0_0.Args[1]
-		if x != v_1_0_0.Args[0] {
-			break
-		}
-		mul := v_1_0_0.Args[1]
-		if mul.Op != OpHmul64u {
+		mul := v_1_0_0.Args[0]
+		if mul.Op != OpHmul32 {
 			break
 		}
 		_ = mul.Args[1]
@@ -17516,136 +17422,170 @@ func rewriteValuegeneric_OpEq64_20(v *Value) bool {
 			break
 		}
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst64 {
+		if mul_1.Op != OpConst32 {
 			break
 		}
 		m := mul_1.AuxInt
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_0_1.AuxInt
 		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		if v_1_0_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_1_0_1.Args[1]
+		if x != v_1_0_1.Args[0] {
+			break
+		}
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1_1.AuxInt != 31 {
 			break
 		}
-		s := v_1_0_1.AuxInt
 		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst64 {
+		if v_1_1.Op != OpConst32 {
 			break
 		}
 		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64, c).m) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m/2)) && s == smagic(32, c).s-1 && x.Op != OpConst32 && sdivisibleOK(32, c)) {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq64 (Mul64 (Const64 [c]) (Rsh64Ux64 (Avg64u x mul:(Hmul64u (Const64 [m]) x)) (Const64 [s]))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64,c).m) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 (Mul32 (Const32 [c]) (Sub32 (Rsh32x64 mul:(Hmul32 (Const32 [m]) x) (Const64 [s])) (Rsh32x64 x (Const64 [31])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m/2)) && s == smagic(32,c).s-1 && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpMul64 {
+		if v_0.Op != OpMul32 {
 			break
 		}
 		_ = v_0.Args[1]
 		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst64 {
+		if v_0_0.Op != OpConst32 {
 			break
 		}
 		c := v_0_0.AuxInt
 		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpRsh64Ux64 {
+		if v_0_1.Op != OpSub32 {
 			break
 		}
 		_ = v_0_1.Args[1]
 		v_0_1_0 := v_0_1.Args[0]
-		if v_0_1_0.Op != OpAvg64u {
+		if v_0_1_0.Op != OpRsh32x64 {
 			break
 		}
 		_ = v_0_1_0.Args[1]
-		if x != v_0_1_0.Args[0] {
-			break
-		}
-		mul := v_0_1_0.Args[1]
-		if mul.Op != OpHmul64u {
+		mul := v_0_1_0.Args[0]
+		if mul.Op != OpHmul32 {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst64 {
+		if mul_0.Op != OpConst32 {
 			break
 		}
 		m := mul_0.AuxInt
 		if x != mul.Args[1] {
 			break
 		}
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_0_1.AuxInt
 		v_0_1_1 := v_0_1.Args[1]
-		if v_0_1_1.Op != OpConst64 {
+		if v_0_1_1.Op != OpRsh32x64 {
 			break
 		}
-		s := v_0_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64, c).m) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		_ = v_0_1_1.Args[1]
+		if x != v_0_1_1.Args[0] {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 31 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m/2)) && s == smagic(32, c).s-1 && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq64 (Mul64 (Const64 [c]) (Rsh64Ux64 (Avg64u x mul:(Hmul64u x (Const64 [m]))) (Const64 [s]))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64,c).m) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 (Mul32 (Const32 [c]) (Sub32 (Rsh32x64 mul:(Hmul32 x (Const32 [m])) (Const64 [s])) (Rsh32x64 x (Const64 [31])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m/2)) && s == smagic(32,c).s-1 && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpMul64 {
+		if v_0.Op != OpMul32 {
 			break
 		}
 		_ = v_0.Args[1]
 		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst64 {
+		if v_0_0.Op != OpConst32 {
 			break
 		}
 		c := v_0_0.AuxInt
 		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpRsh64Ux64 {
+		if v_0_1.Op != OpSub32 {
 			break
 		}
 		_ = v_0_1.Args[1]
 		v_0_1_0 := v_0_1.Args[0]
-		if v_0_1_0.Op != OpAvg64u {
+		if v_0_1_0.Op != OpRsh32x64 {
 			break
 		}
 		_ = v_0_1_0.Args[1]
-		if x != v_0_1_0.Args[0] {
-			break
-		}
-		mul := v_0_1_0.Args[1]
-		if mul.Op != OpHmul64u {
+		mul := v_0_1_0.Args[0]
+		if mul.Op != OpHmul32 {
 			break
 		}
 		_ = mul.Args[1]
@@ -17653,131 +17593,165 @@ func rewriteValuegeneric_OpEq64_20(v *Value) bool {
 			break
 		}
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst64 {
+		if mul_1.Op != OpConst32 {
 			break
 		}
 		m := mul_1.AuxInt
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_0_1.AuxInt
 		v_0_1_1 := v_0_1.Args[1]
-		if v_0_1_1.Op != OpConst64 {
+		if v_0_1_1.Op != OpRsh32x64 {
 			break
 		}
-		s := v_0_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64, c).m) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		_ = v_0_1_1.Args[1]
+		if x != v_0_1_1.Args[0] {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 31 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m/2)) && s == smagic(32, c).s-1 && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq64 (Mul64 (Rsh64Ux64 (Avg64u x mul:(Hmul64u (Const64 [m]) x)) (Const64 [s])) (Const64 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64,c).m) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 (Mul32 (Sub32 (Rsh32x64 mul:(Hmul32 (Const32 [m]) x) (Const64 [s])) (Rsh32x64 x (Const64 [31]))) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m/2)) && s == smagic(32,c).s-1 && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpMul64 {
+		if v_0.Op != OpMul32 {
 			break
 		}
 		_ = v_0.Args[1]
 		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh64Ux64 {
+		if v_0_0.Op != OpSub32 {
 			break
 		}
 		_ = v_0_0.Args[1]
 		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpAvg64u {
+		if v_0_0_0.Op != OpRsh32x64 {
 			break
 		}
 		_ = v_0_0_0.Args[1]
-		if x != v_0_0_0.Args[0] {
-			break
-		}
-		mul := v_0_0_0.Args[1]
-		if mul.Op != OpHmul64u {
+		mul := v_0_0_0.Args[0]
+		if mul.Op != OpHmul32 {
 			break
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpConst64 {
+		if mul_0.Op != OpConst32 {
 			break
 		}
 		m := mul_0.AuxInt
 		if x != mul.Args[1] {
 			break
 		}
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_0_1.AuxInt
 		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
+		if v_0_0_1.Op != OpRsh32x64 {
 			break
 		}
-		s := v_0_0_1.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst64 {
+		_ = v_0_0_1.Args[1]
+		if x != v_0_0_1.Args[0] {
 			break
 		}
-		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64, c).m) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		if v_0_0_1_1.AuxInt != 31 {
+			break
+		}
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst32 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m/2)) && s == smagic(32, c).s-1 && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
 	return false
 }
-func rewriteValuegeneric_OpEq64_30(v *Value) bool {
+func rewriteValuegeneric_OpEq32_70(v *Value) bool {
 	b := v.Block
 	typ := &b.Func.Config.Types
-	// match: (Eq64 (Mul64 (Rsh64Ux64 (Avg64u x mul:(Hmul64u x (Const64 [m]))) (Const64 [s])) (Const64 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64,c).m) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
-	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	// match: (Eq32 (Mul32 (Sub32 (Rsh32x64 mul:(Hmul32 x (Const32 [m])) (Const64 [s])) (Rsh32x64 x (Const64 [31]))) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m/2)) && s == smagic(32,c).s-1 && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpMul64 {
+		if v_0.Op != OpMul32 {
 			break
 		}
 		_ = v_0.Args[1]
 		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh64Ux64 {
+		if v_0_0.Op != OpSub32 {
 			break
 		}
 		_ = v_0_0.Args[1]
 		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpAvg64u {
+		if v_0_0_0.Op != OpRsh32x64 {
 			break
 		}
 		_ = v_0_0_0.Args[1]
-		if x != v_0_0_0.Args[0] {
-			break
-		}
-		mul := v_0_0_0.Args[1]
-		if mul.Op != OpHmul64u {
+		mul := v_0_0_0.Args[0]
+		if mul.Op != OpHmul32 {
 			break
 		}
 		_ = mul.Args[1]
@@ -17785,776 +17759,7264 @@ func rewriteValuegeneric_OpEq64_30(v *Value) bool {
 			break
 		}
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpConst64 {
+		if mul_1.Op != OpConst32 {
 			break
 		}
 		m := mul_1.AuxInt
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_0_1.AuxInt
 		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
+		if v_0_0_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_0_1.Args[1]
+		if x != v_0_0_1.Args[0] {
+			break
+		}
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1_1.AuxInt != 31 {
 			break
 		}
-		s := v_0_0_1.AuxInt
 		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst64 {
+		if v_0_1.Op != OpConst32 {
 			break
 		}
 		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64, c).m) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m/2)) && s == smagic(32, c).s-1 && x.Op != OpConst32 && sdivisibleOK(32, c)) {
 			break
 		}
-		v.reset(OpLeq64U)
-		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
-		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
-		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v2.AuxInt = int64(udivisible(64, c).m)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v3.AuxInt = int64(64 - udivisible(64, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
-		v4.AuxInt = int64(udivisible(64, c).max)
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq64 n (Lsh64x64 (Rsh64x64 (Add64 <t> n (Rsh64Ux64 <t> (Rsh64x64 <t> n (Const64 <typ.UInt64> [63])) (Const64 <typ.UInt64> [kbar]))) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])))
-	// cond: k > 0 && k < 63 && kbar == 64 - k
-	// result: (Eq64 (And64 <t> n (Const64 <t> [int64(1<<uint(k)-1)])) (Const64 <t> [0]))
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Sub32 (Rsh32x64 (Add32 mul:(Hmul32 (Const32 [m]) x) x) (Const64 [s])) (Rsh32x64 x (Const64 [31])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
-		n := v.Args[0]
+		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpLsh64x64 {
+		if v_1.Op != OpMul32 {
 			break
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh64x64 {
-			break
-		}
-		_ = v_1_0.Args[1]
-		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpAdd64 {
-			break
-		}
-		t := v_1_0_0.Type
-		_ = v_1_0_0.Args[1]
-		if n != v_1_0_0.Args[0] {
-			break
-		}
-		v_1_0_0_1 := v_1_0_0.Args[1]
-		if v_1_0_0_1.Op != OpRsh64Ux64 {
-			break
-		}
-		if v_1_0_0_1.Type != t {
-			break
-		}
-		_ = v_1_0_0_1.Args[1]
-		v_1_0_0_1_0 := v_1_0_0_1.Args[0]
-		if v_1_0_0_1_0.Op != OpRsh64x64 {
+		if v_1_0.Op != OpConst32 {
 			break
 		}
-		if v_1_0_0_1_0.Type != t {
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpSub32 {
 			break
 		}
-		_ = v_1_0_0_1_0.Args[1]
-		if n != v_1_0_0_1_0.Args[0] {
+		_ = v_1_1.Args[1]
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh32x64 {
 			break
 		}
-		v_1_0_0_1_0_1 := v_1_0_0_1_0.Args[1]
-		if v_1_0_0_1_0_1.Op != OpConst64 {
+		_ = v_1_1_0.Args[1]
+		v_1_1_0_0 := v_1_1_0.Args[0]
+		if v_1_1_0_0.Op != OpAdd32 {
 			break
 		}
-		if v_1_0_0_1_0_1.Type != typ.UInt64 {
+		_ = v_1_1_0_0.Args[1]
+		mul := v_1_1_0_0.Args[0]
+		if mul.Op != OpHmul32 {
 			break
 		}
-		if v_1_0_0_1_0_1.AuxInt != 63 {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst32 {
 			break
 		}
-		v_1_0_0_1_1 := v_1_0_0_1.Args[1]
-		if v_1_0_0_1_1.Op != OpConst64 {
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
 			break
 		}
-		if v_1_0_0_1_1.Type != typ.UInt64 {
+		if x != v_1_1_0_0.Args[1] {
 			break
 		}
-		kbar := v_1_0_0_1_1.AuxInt
-		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
 			break
 		}
-		if v_1_0_1.Type != typ.UInt64 {
+		s := v_1_1_0_1.AuxInt
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpRsh32x64 {
 			break
 		}
-		k := v_1_0_1.AuxInt
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst64 {
+		_ = v_1_1_1.Args[1]
+		if x != v_1_1_1.Args[0] {
 			break
 		}
-		if v_1_1.Type != typ.UInt64 {
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
 			break
 		}
-		if v_1_1.AuxInt != k {
+		if v_1_1_1_1.AuxInt != 31 {
 			break
 		}
-		if !(k > 0 && k < 63 && kbar == 64-k) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m)) && s == smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
 			break
 		}
-		v.reset(OpEq64)
-		v0 := b.NewValue0(v.Pos, OpAnd64, t)
-		v0.AddArg(n)
-		v1 := b.NewValue0(v.Pos, OpConst64, t)
-		v1.AuxInt = int64(1<<uint(k) - 1)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v2 := b.NewValue0(v.Pos, OpConst64, t)
-		v2.AuxInt = 0
-		v.AddArg(v2)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq64 n (Lsh64x64 (Rsh64x64 (Add64 <t> (Rsh64Ux64 <t> (Rsh64x64 <t> n (Const64 <typ.UInt64> [63])) (Const64 <typ.UInt64> [kbar])) n) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])))
-	// cond: k > 0 && k < 63 && kbar == 64 - k
-	// result: (Eq64 (And64 <t> n (Const64 <t> [int64(1<<uint(k)-1)])) (Const64 <t> [0]))
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Sub32 (Rsh32x64 (Add32 mul:(Hmul32 x (Const32 [m])) x) (Const64 [s])) (Rsh32x64 x (Const64 [31])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
-		n := v.Args[0]
+		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpLsh64x64 {
+		if v_1.Op != OpMul32 {
 			break
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpRsh64x64 {
+		if v_1_0.Op != OpConst32 {
 			break
 		}
-		_ = v_1_0.Args[1]
-		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpAdd64 {
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpSub32 {
 			break
 		}
-		t := v_1_0_0.Type
-		_ = v_1_0_0.Args[1]
-		v_1_0_0_0 := v_1_0_0.Args[0]
-		if v_1_0_0_0.Op != OpRsh64Ux64 {
+		_ = v_1_1.Args[1]
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh32x64 {
 			break
 		}
-		if v_1_0_0_0.Type != t {
+		_ = v_1_1_0.Args[1]
+		v_1_1_0_0 := v_1_1_0.Args[0]
+		if v_1_1_0_0.Op != OpAdd32 {
 			break
 		}
-		_ = v_1_0_0_0.Args[1]
-		v_1_0_0_0_0 := v_1_0_0_0.Args[0]
-		if v_1_0_0_0_0.Op != OpRsh64x64 {
+		_ = v_1_1_0_0.Args[1]
+		mul := v_1_1_0_0.Args[0]
+		if mul.Op != OpHmul32 {
 			break
 		}
-		if v_1_0_0_0_0.Type != t {
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
 			break
 		}
-		_ = v_1_0_0_0_0.Args[1]
-		if n != v_1_0_0_0_0.Args[0] {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst32 {
 			break
 		}
-		v_1_0_0_0_0_1 := v_1_0_0_0_0.Args[1]
-		if v_1_0_0_0_0_1.Op != OpConst64 {
+		m := mul_1.AuxInt
+		if x != v_1_1_0_0.Args[1] {
 			break
 		}
-		if v_1_0_0_0_0_1.Type != typ.UInt64 {
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
 			break
 		}
-		if v_1_0_0_0_0_1.AuxInt != 63 {
+		s := v_1_1_0_1.AuxInt
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpRsh32x64 {
 			break
 		}
-		v_1_0_0_0_1 := v_1_0_0_0.Args[1]
-		if v_1_0_0_0_1.Op != OpConst64 {
+		_ = v_1_1_1.Args[1]
+		if x != v_1_1_1.Args[0] {
 			break
 		}
-		if v_1_0_0_0_1.Type != typ.UInt64 {
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
 			break
 		}
-		kbar := v_1_0_0_0_1.AuxInt
-		if n != v_1_0_0.Args[1] {
+		if v_1_1_1_1.AuxInt != 31 {
 			break
 		}
-		v_1_0_1 := v_1_0.Args[1]
-		if v_1_0_1.Op != OpConst64 {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m)) && s == smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
 			break
 		}
-		if v_1_0_1.Type != typ.UInt64 {
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Sub32 (Rsh32x64 (Add32 x mul:(Hmul32 (Const32 [m]) x)) (Const64 [s])) (Rsh32x64 x (Const64 [31])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		k := v_1_0_1.AuxInt
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst32 {
+			break
+		}
+		c := v_1_0.AuxInt
 		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst64 {
+		if v_1_1.Op != OpSub32 {
 			break
 		}
-		if v_1_1.Type != typ.UInt64 {
+		_ = v_1_1.Args[1]
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh32x64 {
 			break
 		}
-		if v_1_1.AuxInt != k {
+		_ = v_1_1_0.Args[1]
+		v_1_1_0_0 := v_1_1_0.Args[0]
+		if v_1_1_0_0.Op != OpAdd32 {
 			break
 		}
-		if !(k > 0 && k < 63 && kbar == 64-k) {
+		_ = v_1_1_0_0.Args[1]
+		if x != v_1_1_0_0.Args[0] {
 			break
 		}
-		v.reset(OpEq64)
-		v0 := b.NewValue0(v.Pos, OpAnd64, t)
-		v0.AddArg(n)
-		v1 := b.NewValue0(v.Pos, OpConst64, t)
-		v1.AuxInt = int64(1<<uint(k) - 1)
-		v0.AddArg(v1)
-		v.AddArg(v0)
-		v2 := b.NewValue0(v.Pos, OpConst64, t)
-		v2.AuxInt = 0
-		v.AddArg(v2)
-		return true
-	}
-	// match: (Eq64 (Lsh64x64 (Rsh64x64 (Add64 <t> n (Rsh64Ux64 <t> (Rsh64x64 <t> n (Const64 <typ.UInt64> [63])) (Const64 <typ.UInt64> [kbar]))) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])) n)
-	// cond: k > 0 && k < 63 && kbar == 64 - k
-	// result: (Eq64 (And64 <t> n (Const64 <t> [int64(1<<uint(k)-1)])) (Const64 <t> [0]))
-	for {
-		n := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpLsh64x64 {
-			break
-		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh64x64 {
+		mul := v_1_1_0_0.Args[1]
+		if mul.Op != OpHmul32 {
 			break
 		}
-		_ = v_0_0.Args[1]
-		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpAdd64 {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst32 {
 			break
 		}
-		t := v_0_0_0.Type
-		_ = v_0_0_0.Args[1]
-		if n != v_0_0_0.Args[0] {
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
 			break
 		}
-		v_0_0_0_1 := v_0_0_0.Args[1]
-		if v_0_0_0_1.Op != OpRsh64Ux64 {
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
 			break
 		}
-		if v_0_0_0_1.Type != t {
+		s := v_1_1_0_1.AuxInt
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpRsh32x64 {
 			break
 		}
-		_ = v_0_0_0_1.Args[1]
-		v_0_0_0_1_0 := v_0_0_0_1.Args[0]
-		if v_0_0_0_1_0.Op != OpRsh64x64 {
+		_ = v_1_1_1.Args[1]
+		if x != v_1_1_1.Args[0] {
 			break
 		}
-		if v_0_0_0_1_0.Type != t {
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
 			break
 		}
-		_ = v_0_0_0_1_0.Args[1]
-		if n != v_0_0_0_1_0.Args[0] {
+		if v_1_1_1_1.AuxInt != 31 {
 			break
 		}
-		v_0_0_0_1_0_1 := v_0_0_0_1_0.Args[1]
-		if v_0_0_0_1_0_1.Op != OpConst64 {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m)) && s == smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
 			break
 		}
-		if v_0_0_0_1_0_1.Type != typ.UInt64 {
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq32 x (Mul32 (Const32 [c]) (Sub32 (Rsh32x64 (Add32 x mul:(Hmul32 x (Const32 [m]))) (Const64 [s])) (Rsh32x64 x (Const64 [31])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		if v_0_0_0_1_0_1.AuxInt != 63 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst32 {
 			break
 		}
-		v_0_0_0_1_1 := v_0_0_0_1.Args[1]
-		if v_0_0_0_1_1.Op != OpConst64 {
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpSub32 {
 			break
 		}
-		if v_0_0_0_1_1.Type != typ.UInt64 {
+		_ = v_1_1.Args[1]
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh32x64 {
 			break
 		}
-		kbar := v_0_0_0_1_1.AuxInt
-		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
+		_ = v_1_1_0.Args[1]
+		v_1_1_0_0 := v_1_1_0.Args[0]
+		if v_1_1_0_0.Op != OpAdd32 {
 			break
 		}
-		if v_0_0_1.Type != typ.UInt64 {
+		_ = v_1_1_0_0.Args[1]
+		if x != v_1_1_0_0.Args[0] {
 			break
 		}
-		k := v_0_0_1.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst64 {
+		mul := v_1_1_0_0.Args[1]
+		if mul.Op != OpHmul32 {
 			break
 		}
-		if v_0_1.Type != typ.UInt64 {
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
 			break
 		}
-		if v_0_1.AuxInt != k {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst32 {
 			break
 		}
-		if !(k > 0 && k < 63 && kbar == 64-k) {
+		m := mul_1.AuxInt
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
 			break
 		}
-		v.reset(OpEq64)
-		v0 := b.NewValue0(v.Pos, OpAnd64, t)
-		v0.AddArg(n)
-		v1 := b.NewValue0(v.Pos, OpConst64, t)
-		v1.AuxInt = int64(1<<uint(k) - 1)
-		v0.AddArg(v1)
-		v.AddArg(v0)
-		v2 := b.NewValue0(v.Pos, OpConst64, t)
-		v2.AuxInt = 0
-		v.AddArg(v2)
-		return true
-	}
-	// match: (Eq64 (Lsh64x64 (Rsh64x64 (Add64 <t> (Rsh64Ux64 <t> (Rsh64x64 <t> n (Const64 <typ.UInt64> [63])) (Const64 <typ.UInt64> [kbar])) n) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])) n)
-	// cond: k > 0 && k < 63 && kbar == 64 - k
-	// result: (Eq64 (And64 <t> n (Const64 <t> [int64(1<<uint(k)-1)])) (Const64 <t> [0]))
-	for {
-		n := v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpLsh64x64 {
+		s := v_1_1_0_1.AuxInt
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpRsh32x64 {
 			break
 		}
-		_ = v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpRsh64x64 {
+		_ = v_1_1_1.Args[1]
+		if x != v_1_1_1.Args[0] {
 			break
 		}
-		_ = v_0_0.Args[1]
-		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpAdd64 {
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
 			break
 		}
-		t := v_0_0_0.Type
-		_ = v_0_0_0.Args[1]
-		v_0_0_0_0 := v_0_0_0.Args[0]
-		if v_0_0_0_0.Op != OpRsh64Ux64 {
+		if v_1_1_1_1.AuxInt != 31 {
 			break
 		}
-		if v_0_0_0_0.Type != t {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m)) && s == smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
 			break
 		}
-		_ = v_0_0_0_0.Args[1]
-		v_0_0_0_0_0 := v_0_0_0_0.Args[0]
-		if v_0_0_0_0_0.Op != OpRsh64x64 {
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq32 x (Mul32 (Sub32 (Rsh32x64 (Add32 mul:(Hmul32 (Const32 [m]) x) x) (Const64 [s])) (Rsh32x64 x (Const64 [31]))) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		if v_0_0_0_0_0.Type != t {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpSub32 {
 			break
 		}
-		_ = v_0_0_0_0_0.Args[1]
-		if n != v_0_0_0_0_0.Args[0] {
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh32x64 {
 			break
 		}
-		v_0_0_0_0_0_1 := v_0_0_0_0_0.Args[1]
-		if v_0_0_0_0_0_1.Op != OpConst64 {
+		_ = v_1_0_0.Args[1]
+		v_1_0_0_0 := v_1_0_0.Args[0]
+		if v_1_0_0_0.Op != OpAdd32 {
 			break
 		}
-		if v_0_0_0_0_0_1.Type != typ.UInt64 {
+		_ = v_1_0_0_0.Args[1]
+		mul := v_1_0_0_0.Args[0]
+		if mul.Op != OpHmul32 {
 			break
 		}
-		if v_0_0_0_0_0_1.AuxInt != 63 {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst32 {
 			break
 		}
-		v_0_0_0_0_1 := v_0_0_0_0.Args[1]
-		if v_0_0_0_0_1.Op != OpConst64 {
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
 			break
 		}
-		if v_0_0_0_0_1.Type != typ.UInt64 {
+		if x != v_1_0_0_0.Args[1] {
 			break
 		}
-		kbar := v_0_0_0_0_1.AuxInt
-		if n != v_0_0_0.Args[1] {
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
 			break
 		}
-		v_0_0_1 := v_0_0.Args[1]
-		if v_0_0_1.Op != OpConst64 {
+		s := v_1_0_0_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpRsh32x64 {
 			break
 		}
-		if v_0_0_1.Type != typ.UInt64 {
+		_ = v_1_0_1.Args[1]
+		if x != v_1_0_1.Args[0] {
 			break
 		}
-		k := v_0_0_1.AuxInt
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst64 {
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
 			break
 		}
-		if v_0_1.Type != typ.UInt64 {
+		if v_1_0_1_1.AuxInt != 31 {
 			break
 		}
-		if v_0_1.AuxInt != k {
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst32 {
 			break
 		}
-		if !(k > 0 && k < 63 && kbar == 64-k) {
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m)) && s == smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
 			break
 		}
-		v.reset(OpEq64)
-		v0 := b.NewValue0(v.Pos, OpAnd64, t)
-		v0.AddArg(n)
-		v1 := b.NewValue0(v.Pos, OpConst64, t)
-		v1.AuxInt = int64(1<<uint(k) - 1)
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v2 := b.NewValue0(v.Pos, OpConst64, t)
-		v2.AuxInt = 0
-		v.AddArg(v2)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq64 s:(Sub64 x y) (Const64 [0]))
-	// cond: s.Uses == 1
-	// result: (Eq64 x y)
+	// match: (Eq32 x (Mul32 (Sub32 (Rsh32x64 (Add32 mul:(Hmul32 x (Const32 [m])) x) (Const64 [s])) (Rsh32x64 x (Const64 [31]))) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
-		s := v.Args[0]
-		if s.Op != OpSub64 {
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul32 {
 			break
 		}
-		y := s.Args[1]
-		x := s.Args[0]
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst64 {
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpSub32 {
 			break
 		}
-		if v_1.AuxInt != 0 {
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh32x64 {
 			break
 		}
-		if !(s.Uses == 1) {
+		_ = v_1_0_0.Args[1]
+		v_1_0_0_0 := v_1_0_0.Args[0]
+		if v_1_0_0_0.Op != OpAdd32 {
 			break
 		}
-		v.reset(OpEq64)
-		v.AddArg(x)
-		v.AddArg(y)
-		return true
-	}
-	// match: (Eq64 (Const64 [0]) s:(Sub64 x y))
-	// cond: s.Uses == 1
-	// result: (Eq64 x y)
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst64 {
+		_ = v_1_0_0_0.Args[1]
+		mul := v_1_0_0_0.Args[0]
+		if mul.Op != OpHmul32 {
 			break
 		}
-		if v_0.AuxInt != 0 {
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
 			break
 		}
-		s := v.Args[1]
-		if s.Op != OpSub64 {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst32 {
 			break
 		}
-		y := s.Args[1]
-		x := s.Args[0]
-		if !(s.Uses == 1) {
+		m := mul_1.AuxInt
+		if x != v_1_0_0_0.Args[1] {
 			break
 		}
-		v.reset(OpEq64)
-		v.AddArg(x)
-		v.AddArg(y)
-		return true
-	}
-	return false
-}
-func rewriteValuegeneric_OpEq64F_0(v *Value) bool {
-	// match: (Eq64F (Const64F [c]) (Const64F [d]))
-	// cond:
-	// result: (ConstBool [b2i(auxTo64F(c) == auxTo64F(d))])
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst64F {
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
 			break
 		}
-		c := v_0.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst64F {
+		s := v_1_0_0_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpRsh32x64 {
 			break
 		}
-		d := v_1.AuxInt
-		v.reset(OpConstBool)
-		v.AuxInt = b2i(auxTo64F(c) == auxTo64F(d))
-		return true
-	}
-	// match: (Eq64F (Const64F [d]) (Const64F [c]))
-	// cond:
-	// result: (ConstBool [b2i(auxTo64F(c) == auxTo64F(d))])
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst64F {
+		_ = v_1_0_1.Args[1]
+		if x != v_1_0_1.Args[0] {
 			break
 		}
-		d := v_0.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst64F {
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
 			break
 		}
-		c := v_1.AuxInt
-		v.reset(OpConstBool)
-		v.AuxInt = b2i(auxTo64F(c) == auxTo64F(d))
-		return true
-	}
-	return false
-}
-func rewriteValuegeneric_OpEq8_0(v *Value) bool {
-	b := v.Block
-	config := b.Func.Config
-	typ := &b.Func.Config.Types
-	// match: (Eq8 x x)
-	// cond:
-	// result: (ConstBool [1])
-	for {
-		x := v.Args[1]
-		if x != v.Args[0] {
+		if v_1_0_1_1.AuxInt != 31 {
 			break
 		}
-		v.reset(OpConstBool)
-		v.AuxInt = 1
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst32 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m)) && s == smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq8 (Const8 <t> [c]) (Add8 (Const8 <t> [d]) x))
-	// cond:
-	// result: (Eq8 (Const8 <t> [int64(int8(c-d))]) x)
+	// match: (Eq32 x (Mul32 (Sub32 (Rsh32x64 (Add32 x mul:(Hmul32 (Const32 [m]) x)) (Const64 [s])) (Rsh32x64 x (Const64 [31]))) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst8 {
-			break
-		}
-		t := v_0.Type
-		c := v_0.AuxInt
+		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpAdd8 {
+		if v_1.Op != OpMul32 {
 			break
 		}
-		x := v_1.Args[1]
+		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpConst8 {
+		if v_1_0.Op != OpSub32 {
 			break
 		}
-		if v_1_0.Type != t {
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh32x64 {
 			break
 		}
-		d := v_1_0.AuxInt
-		v.reset(OpEq8)
-		v0 := b.NewValue0(v.Pos, OpConst8, t)
-		v0.AuxInt = int64(int8(c - d))
+		_ = v_1_0_0.Args[1]
+		v_1_0_0_0 := v_1_0_0.Args[0]
+		if v_1_0_0_0.Op != OpAdd32 {
+			break
+		}
+		_ = v_1_0_0_0.Args[1]
+		if x != v_1_0_0_0.Args[0] {
+			break
+		}
+		mul := v_1_0_0_0.Args[1]
+		if mul.Op != OpHmul32 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst32 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_0_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_1_0_1.Args[1]
+		if x != v_1_0_1.Args[0] {
+			break
+		}
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1_1.AuxInt != 31 {
+			break
+		}
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst32 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m)) && s == smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v.AddArg(x)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq8 (Const8 <t> [c]) (Add8 x (Const8 <t> [d])))
-	// cond:
-	// result: (Eq8 (Const8 <t> [int64(int8(c-d))]) x)
+	// match: (Eq32 x (Mul32 (Sub32 (Rsh32x64 (Add32 x mul:(Hmul32 x (Const32 [m]))) (Const64 [s])) (Rsh32x64 x (Const64 [31]))) (Const32 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
 		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst8 {
-			break
-		}
-		t := v_0.Type
-		c := v_0.AuxInt
+		x := v.Args[0]
 		v_1 := v.Args[1]
-		if v_1.Op != OpAdd8 {
+		if v_1.Op != OpMul32 {
 			break
 		}
 		_ = v_1.Args[1]
-		x := v_1.Args[0]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpSub32 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_1_0_0.Args[1]
+		v_1_0_0_0 := v_1_0_0.Args[0]
+		if v_1_0_0_0.Op != OpAdd32 {
+			break
+		}
+		_ = v_1_0_0_0.Args[1]
+		if x != v_1_0_0_0.Args[0] {
+			break
+		}
+		mul := v_1_0_0_0.Args[1]
+		if mul.Op != OpHmul32 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst32 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_0_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_1_0_1.Args[1]
+		if x != v_1_0_1.Args[0] {
+			break
+		}
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1_1.AuxInt != 31 {
+			break
+		}
 		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst8 {
+		if v_1_1.Op != OpConst32 {
 			break
 		}
-		if v_1_1.Type != t {
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m)) && s == smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
 			break
 		}
-		d := v_1_1.AuxInt
-		v.reset(OpEq8)
-		v0 := b.NewValue0(v.Pos, OpConst8, t)
-		v0.AuxInt = int64(int8(c - d))
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v.AddArg(x)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq8 (Add8 (Const8 <t> [d]) x) (Const8 <t> [c]))
-	// cond:
-	// result: (Eq8 (Const8 <t> [int64(int8(c-d))]) x)
+	// match: (Eq32 (Mul32 (Const32 [c]) (Sub32 (Rsh32x64 (Add32 mul:(Hmul32 (Const32 [m]) x) x) (Const64 [s])) (Rsh32x64 x (Const64 [31])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
 	for {
-		_ = v.Args[1]
+		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpAdd8 {
+		if v_0.Op != OpMul32 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst32 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpSub32 {
+			break
+		}
+		_ = v_0_1.Args[1]
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_1_0.Args[1]
+		v_0_1_0_0 := v_0_1_0.Args[0]
+		if v_0_1_0_0.Op != OpAdd32 {
+			break
+		}
+		_ = v_0_1_0_0.Args[1]
+		mul := v_0_1_0_0.Args[0]
+		if mul.Op != OpHmul32 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst32 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		if x != v_0_1_0_0.Args[1] {
+			break
+		}
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_0_1.AuxInt
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_1_1.Args[1]
+		if x != v_0_1_1.Args[0] {
+			break
+		}
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 31 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m)) && s == smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
+		return true
+	}
+	return false
+}
+func rewriteValuegeneric_OpEq32_80(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
+	// match: (Eq32 (Mul32 (Const32 [c]) (Sub32 (Rsh32x64 (Add32 mul:(Hmul32 x (Const32 [m])) x) (Const64 [s])) (Rsh32x64 x (Const64 [31])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst32 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpSub32 {
+			break
+		}
+		_ = v_0_1.Args[1]
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_1_0.Args[1]
+		v_0_1_0_0 := v_0_1_0.Args[0]
+		if v_0_1_0_0.Op != OpAdd32 {
+			break
+		}
+		_ = v_0_1_0_0.Args[1]
+		mul := v_0_1_0_0.Args[0]
+		if mul.Op != OpHmul32 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst32 {
+			break
+		}
+		m := mul_1.AuxInt
+		if x != v_0_1_0_0.Args[1] {
+			break
+		}
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_0_1.AuxInt
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_1_1.Args[1]
+		if x != v_0_1_1.Args[0] {
+			break
+		}
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 31 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m)) && s == smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq32 (Mul32 (Const32 [c]) (Sub32 (Rsh32x64 (Add32 x mul:(Hmul32 (Const32 [m]) x)) (Const64 [s])) (Rsh32x64 x (Const64 [31])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst32 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpSub32 {
+			break
+		}
+		_ = v_0_1.Args[1]
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_1_0.Args[1]
+		v_0_1_0_0 := v_0_1_0.Args[0]
+		if v_0_1_0_0.Op != OpAdd32 {
+			break
+		}
+		_ = v_0_1_0_0.Args[1]
+		if x != v_0_1_0_0.Args[0] {
+			break
+		}
+		mul := v_0_1_0_0.Args[1]
+		if mul.Op != OpHmul32 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst32 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_0_1.AuxInt
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_1_1.Args[1]
+		if x != v_0_1_1.Args[0] {
+			break
+		}
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 31 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m)) && s == smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq32 (Mul32 (Const32 [c]) (Sub32 (Rsh32x64 (Add32 x mul:(Hmul32 x (Const32 [m]))) (Const64 [s])) (Rsh32x64 x (Const64 [31])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst32 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpSub32 {
+			break
+		}
+		_ = v_0_1.Args[1]
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_1_0.Args[1]
+		v_0_1_0_0 := v_0_1_0.Args[0]
+		if v_0_1_0_0.Op != OpAdd32 {
+			break
+		}
+		_ = v_0_1_0_0.Args[1]
+		if x != v_0_1_0_0.Args[0] {
+			break
+		}
+		mul := v_0_1_0_0.Args[1]
+		if mul.Op != OpHmul32 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst32 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_0_1.AuxInt
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_1_1.Args[1]
+		if x != v_0_1_1.Args[0] {
+			break
+		}
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 31 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m)) && s == smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq32 (Mul32 (Sub32 (Rsh32x64 (Add32 mul:(Hmul32 (Const32 [m]) x) x) (Const64 [s])) (Rsh32x64 x (Const64 [31]))) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpSub32 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_0_0.Args[1]
+		v_0_0_0_0 := v_0_0_0.Args[0]
+		if v_0_0_0_0.Op != OpAdd32 {
+			break
+		}
+		_ = v_0_0_0_0.Args[1]
+		mul := v_0_0_0_0.Args[0]
+		if mul.Op != OpHmul32 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst32 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		if x != v_0_0_0_0.Args[1] {
+			break
+		}
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_0_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_0_1.Args[1]
+		if x != v_0_0_1.Args[0] {
+			break
+		}
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1_1.AuxInt != 31 {
+			break
+		}
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst32 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m)) && s == smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq32 (Mul32 (Sub32 (Rsh32x64 (Add32 mul:(Hmul32 x (Const32 [m])) x) (Const64 [s])) (Rsh32x64 x (Const64 [31]))) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpSub32 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_0_0.Args[1]
+		v_0_0_0_0 := v_0_0_0.Args[0]
+		if v_0_0_0_0.Op != OpAdd32 {
+			break
+		}
+		_ = v_0_0_0_0.Args[1]
+		mul := v_0_0_0_0.Args[0]
+		if mul.Op != OpHmul32 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst32 {
+			break
+		}
+		m := mul_1.AuxInt
+		if x != v_0_0_0_0.Args[1] {
+			break
+		}
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_0_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_0_1.Args[1]
+		if x != v_0_0_1.Args[0] {
+			break
+		}
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1_1.AuxInt != 31 {
+			break
+		}
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst32 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m)) && s == smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq32 (Mul32 (Sub32 (Rsh32x64 (Add32 x mul:(Hmul32 (Const32 [m]) x)) (Const64 [s])) (Rsh32x64 x (Const64 [31]))) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpSub32 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_0_0.Args[1]
+		v_0_0_0_0 := v_0_0_0.Args[0]
+		if v_0_0_0_0.Op != OpAdd32 {
+			break
+		}
+		_ = v_0_0_0_0.Args[1]
+		if x != v_0_0_0_0.Args[0] {
+			break
+		}
+		mul := v_0_0_0_0.Args[1]
+		if mul.Op != OpHmul32 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst32 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_0_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_0_1.Args[1]
+		if x != v_0_0_1.Args[0] {
+			break
+		}
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1_1.AuxInt != 31 {
+			break
+		}
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst32 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m)) && s == smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq32 (Mul32 (Sub32 (Rsh32x64 (Add32 x mul:(Hmul32 x (Const32 [m]))) (Const64 [s])) (Rsh32x64 x (Const64 [31]))) (Const32 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32,c).m)) && s == smagic(32,c).s && x.Op != OpConst32 && sdivisibleOK(32,c)
+	// result: (Leq32U (RotateLeft32 <typ.UInt32> (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).m))]) x) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).a))]) ) (Const32 <typ.UInt32> [int64(32-sdivisible(32,c).k)]) ) (Const32 <typ.UInt32> [int64(int32(sdivisible(32,c).max))]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul32 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpSub32 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_0_0.Args[1]
+		v_0_0_0_0 := v_0_0_0.Args[0]
+		if v_0_0_0_0.Op != OpAdd32 {
+			break
+		}
+		_ = v_0_0_0_0.Args[1]
+		if x != v_0_0_0_0.Args[0] {
+			break
+		}
+		mul := v_0_0_0_0.Args[1]
+		if mul.Op != OpHmul32 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst32 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_0_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_0_1.Args[1]
+		if x != v_0_0_1.Args[0] {
+			break
+		}
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1_1.AuxInt != 31 {
+			break
+		}
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst32 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(int32(smagic(32, c).m)) && s == smagic(32, c).s && x.Op != OpConst32 && sdivisibleOK(32, c)) {
+			break
+		}
+		v.reset(OpLeq32U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft32, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
+		v2 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = int64(int32(sdivisible(32, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v4.AuxInt = int64(int32(sdivisible(32, c).a))
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v5.AuxInt = int64(32 - sdivisible(32, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v6.AuxInt = int64(int32(sdivisible(32, c).max))
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq32 n (Lsh32x64 (Rsh32x64 (Add32 <t> n (Rsh32Ux64 <t> (Rsh32x64 <t> n (Const64 <typ.UInt64> [31])) (Const64 <typ.UInt64> [kbar]))) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])))
+	// cond: k > 0 && k < 31 && kbar == 32 - k
+	// result: (Eq32 (And32 <t> n (Const32 <t> [int64(1<<uint(k)-1)])) (Const32 <t> [0]))
+	for {
+		_ = v.Args[1]
+		n := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpLsh32x64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpAdd32 {
+			break
+		}
+		t := v_1_0_0.Type
+		_ = v_1_0_0.Args[1]
+		if n != v_1_0_0.Args[0] {
+			break
+		}
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpRsh32Ux64 {
+			break
+		}
+		if v_1_0_0_1.Type != t {
+			break
+		}
+		_ = v_1_0_0_1.Args[1]
+		v_1_0_0_1_0 := v_1_0_0_1.Args[0]
+		if v_1_0_0_1_0.Op != OpRsh32x64 {
+			break
+		}
+		if v_1_0_0_1_0.Type != t {
+			break
+		}
+		_ = v_1_0_0_1_0.Args[1]
+		if n != v_1_0_0_1_0.Args[0] {
+			break
+		}
+		v_1_0_0_1_0_1 := v_1_0_0_1_0.Args[1]
+		if v_1_0_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_0_1_0_1.Type != typ.UInt64 {
+			break
+		}
+		if v_1_0_0_1_0_1.AuxInt != 31 {
+			break
+		}
+		v_1_0_0_1_1 := v_1_0_0_1.Args[1]
+		if v_1_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_0_1_1.Type != typ.UInt64 {
+			break
+		}
+		kbar := v_1_0_0_1_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1.Type != typ.UInt64 {
+			break
+		}
+		k := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1.Type != typ.UInt64 {
+			break
+		}
+		if v_1_1.AuxInt != k {
+			break
+		}
+		if !(k > 0 && k < 31 && kbar == 32-k) {
+			break
+		}
+		v.reset(OpEq32)
+		v0 := b.NewValue0(v.Pos, OpAnd32, t)
+		v0.AddArg(n)
+		v1 := b.NewValue0(v.Pos, OpConst32, t)
+		v1.AuxInt = int64(1<<uint(k) - 1)
+		v0.AddArg(v1)
+		v.AddArg(v0)
+		v2 := b.NewValue0(v.Pos, OpConst32, t)
+		v2.AuxInt = 0
+		v.AddArg(v2)
+		return true
+	}
+	// match: (Eq32 n (Lsh32x64 (Rsh32x64 (Add32 <t> (Rsh32Ux64 <t> (Rsh32x64 <t> n (Const64 <typ.UInt64> [31])) (Const64 <typ.UInt64> [kbar])) n) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])))
+	// cond: k > 0 && k < 31 && kbar == 32 - k
+	// result: (Eq32 (And32 <t> n (Const32 <t> [int64(1<<uint(k)-1)])) (Const32 <t> [0]))
+	for {
+		_ = v.Args[1]
+		n := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpLsh32x64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpAdd32 {
+			break
+		}
+		t := v_1_0_0.Type
+		_ = v_1_0_0.Args[1]
+		v_1_0_0_0 := v_1_0_0.Args[0]
+		if v_1_0_0_0.Op != OpRsh32Ux64 {
+			break
+		}
+		if v_1_0_0_0.Type != t {
+			break
+		}
+		_ = v_1_0_0_0.Args[1]
+		v_1_0_0_0_0 := v_1_0_0_0.Args[0]
+		if v_1_0_0_0_0.Op != OpRsh32x64 {
+			break
+		}
+		if v_1_0_0_0_0.Type != t {
+			break
+		}
+		_ = v_1_0_0_0_0.Args[1]
+		if n != v_1_0_0_0_0.Args[0] {
+			break
+		}
+		v_1_0_0_0_0_1 := v_1_0_0_0_0.Args[1]
+		if v_1_0_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_0_0_0_1.Type != typ.UInt64 {
+			break
+		}
+		if v_1_0_0_0_0_1.AuxInt != 31 {
+			break
+		}
+		v_1_0_0_0_1 := v_1_0_0_0.Args[1]
+		if v_1_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_0_0_1.Type != typ.UInt64 {
+			break
+		}
+		kbar := v_1_0_0_0_1.AuxInt
+		if n != v_1_0_0.Args[1] {
+			break
+		}
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1.Type != typ.UInt64 {
+			break
+		}
+		k := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1.Type != typ.UInt64 {
+			break
+		}
+		if v_1_1.AuxInt != k {
+			break
+		}
+		if !(k > 0 && k < 31 && kbar == 32-k) {
+			break
+		}
+		v.reset(OpEq32)
+		v0 := b.NewValue0(v.Pos, OpAnd32, t)
+		v0.AddArg(n)
+		v1 := b.NewValue0(v.Pos, OpConst32, t)
+		v1.AuxInt = int64(1<<uint(k) - 1)
+		v0.AddArg(v1)
+		v.AddArg(v0)
+		v2 := b.NewValue0(v.Pos, OpConst32, t)
+		v2.AuxInt = 0
+		v.AddArg(v2)
+		return true
+	}
+	// match: (Eq32 (Lsh32x64 (Rsh32x64 (Add32 <t> n (Rsh32Ux64 <t> (Rsh32x64 <t> n (Const64 <typ.UInt64> [31])) (Const64 <typ.UInt64> [kbar]))) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])) n)
+	// cond: k > 0 && k < 31 && kbar == 32 - k
+	// result: (Eq32 (And32 <t> n (Const32 <t> [int64(1<<uint(k)-1)])) (Const32 <t> [0]))
+	for {
+		n := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpLsh32x64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpAdd32 {
+			break
+		}
+		t := v_0_0_0.Type
+		_ = v_0_0_0.Args[1]
+		if n != v_0_0_0.Args[0] {
+			break
+		}
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpRsh32Ux64 {
+			break
+		}
+		if v_0_0_0_1.Type != t {
+			break
+		}
+		_ = v_0_0_0_1.Args[1]
+		v_0_0_0_1_0 := v_0_0_0_1.Args[0]
+		if v_0_0_0_1_0.Op != OpRsh32x64 {
+			break
+		}
+		if v_0_0_0_1_0.Type != t {
+			break
+		}
+		_ = v_0_0_0_1_0.Args[1]
+		if n != v_0_0_0_1_0.Args[0] {
+			break
+		}
+		v_0_0_0_1_0_1 := v_0_0_0_1_0.Args[1]
+		if v_0_0_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_0_1_0_1.Type != typ.UInt64 {
+			break
+		}
+		if v_0_0_0_1_0_1.AuxInt != 31 {
+			break
+		}
+		v_0_0_0_1_1 := v_0_0_0_1.Args[1]
+		if v_0_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_0_1_1.Type != typ.UInt64 {
+			break
+		}
+		kbar := v_0_0_0_1_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1.Type != typ.UInt64 {
+			break
+		}
+		k := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1.Type != typ.UInt64 {
+			break
+		}
+		if v_0_1.AuxInt != k {
+			break
+		}
+		if !(k > 0 && k < 31 && kbar == 32-k) {
+			break
+		}
+		v.reset(OpEq32)
+		v0 := b.NewValue0(v.Pos, OpAnd32, t)
+		v0.AddArg(n)
+		v1 := b.NewValue0(v.Pos, OpConst32, t)
+		v1.AuxInt = int64(1<<uint(k) - 1)
+		v0.AddArg(v1)
+		v.AddArg(v0)
+		v2 := b.NewValue0(v.Pos, OpConst32, t)
+		v2.AuxInt = 0
+		v.AddArg(v2)
+		return true
+	}
+	return false
+}
+func rewriteValuegeneric_OpEq32_90(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
+	// match: (Eq32 (Lsh32x64 (Rsh32x64 (Add32 <t> (Rsh32Ux64 <t> (Rsh32x64 <t> n (Const64 <typ.UInt64> [31])) (Const64 <typ.UInt64> [kbar])) n) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])) n)
+	// cond: k > 0 && k < 31 && kbar == 32 - k
+	// result: (Eq32 (And32 <t> n (Const32 <t> [int64(1<<uint(k)-1)])) (Const32 <t> [0]))
+	for {
+		n := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpLsh32x64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpAdd32 {
+			break
+		}
+		t := v_0_0_0.Type
+		_ = v_0_0_0.Args[1]
+		v_0_0_0_0 := v_0_0_0.Args[0]
+		if v_0_0_0_0.Op != OpRsh32Ux64 {
+			break
+		}
+		if v_0_0_0_0.Type != t {
+			break
+		}
+		_ = v_0_0_0_0.Args[1]
+		v_0_0_0_0_0 := v_0_0_0_0.Args[0]
+		if v_0_0_0_0_0.Op != OpRsh32x64 {
+			break
+		}
+		if v_0_0_0_0_0.Type != t {
+			break
+		}
+		_ = v_0_0_0_0_0.Args[1]
+		if n != v_0_0_0_0_0.Args[0] {
+			break
+		}
+		v_0_0_0_0_0_1 := v_0_0_0_0_0.Args[1]
+		if v_0_0_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_0_0_0_1.Type != typ.UInt64 {
+			break
+		}
+		if v_0_0_0_0_0_1.AuxInt != 31 {
+			break
+		}
+		v_0_0_0_0_1 := v_0_0_0_0.Args[1]
+		if v_0_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_0_0_1.Type != typ.UInt64 {
+			break
+		}
+		kbar := v_0_0_0_0_1.AuxInt
+		if n != v_0_0_0.Args[1] {
+			break
+		}
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1.Type != typ.UInt64 {
+			break
+		}
+		k := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1.Type != typ.UInt64 {
+			break
+		}
+		if v_0_1.AuxInt != k {
+			break
+		}
+		if !(k > 0 && k < 31 && kbar == 32-k) {
+			break
+		}
+		v.reset(OpEq32)
+		v0 := b.NewValue0(v.Pos, OpAnd32, t)
+		v0.AddArg(n)
+		v1 := b.NewValue0(v.Pos, OpConst32, t)
+		v1.AuxInt = int64(1<<uint(k) - 1)
+		v0.AddArg(v1)
+		v.AddArg(v0)
+		v2 := b.NewValue0(v.Pos, OpConst32, t)
+		v2.AuxInt = 0
+		v.AddArg(v2)
+		return true
+	}
+	// match: (Eq32 s:(Sub32 x y) (Const32 [0]))
+	// cond: s.Uses == 1
+	// result: (Eq32 x y)
+	for {
+		_ = v.Args[1]
+		s := v.Args[0]
+		if s.Op != OpSub32 {
+			break
+		}
+		y := s.Args[1]
+		x := s.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst32 {
+			break
+		}
+		if v_1.AuxInt != 0 {
+			break
+		}
+		if !(s.Uses == 1) {
+			break
+		}
+		v.reset(OpEq32)
+		v.AddArg(x)
+		v.AddArg(y)
+		return true
+	}
+	// match: (Eq32 (Const32 [0]) s:(Sub32 x y))
+	// cond: s.Uses == 1
+	// result: (Eq32 x y)
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst32 {
+			break
+		}
+		if v_0.AuxInt != 0 {
+			break
+		}
+		s := v.Args[1]
+		if s.Op != OpSub32 {
+			break
+		}
+		y := s.Args[1]
+		x := s.Args[0]
+		if !(s.Uses == 1) {
+			break
+		}
+		v.reset(OpEq32)
+		v.AddArg(x)
+		v.AddArg(y)
+		return true
+	}
+	return false
+}
+func rewriteValuegeneric_OpEq32F_0(v *Value) bool {
+	// match: (Eq32F (Const32F [c]) (Const32F [d]))
+	// cond:
+	// result: (ConstBool [b2i(auxTo32F(c) == auxTo32F(d))])
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst32F {
+			break
+		}
+		c := v_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst32F {
+			break
+		}
+		d := v_1.AuxInt
+		v.reset(OpConstBool)
+		v.AuxInt = b2i(auxTo32F(c) == auxTo32F(d))
+		return true
+	}
+	// match: (Eq32F (Const32F [d]) (Const32F [c]))
+	// cond:
+	// result: (ConstBool [b2i(auxTo32F(c) == auxTo32F(d))])
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst32F {
+			break
+		}
+		d := v_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst32F {
+			break
+		}
+		c := v_1.AuxInt
+		v.reset(OpConstBool)
+		v.AuxInt = b2i(auxTo32F(c) == auxTo32F(d))
+		return true
+	}
+	return false
+}
+func rewriteValuegeneric_OpEq64_0(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
+	// match: (Eq64 x x)
+	// cond:
+	// result: (ConstBool [1])
+	for {
+		x := v.Args[1]
+		if x != v.Args[0] {
+			break
+		}
+		v.reset(OpConstBool)
+		v.AuxInt = 1
+		return true
+	}
+	// match: (Eq64 (Const64 <t> [c]) (Add64 (Const64 <t> [d]) x))
+	// cond:
+	// result: (Eq64 (Const64 <t> [c-d]) x)
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst64 {
+			break
+		}
+		t := v_0.Type
+		c := v_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpAdd64 {
+			break
+		}
+		x := v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst64 {
+			break
+		}
+		if v_1_0.Type != t {
+			break
+		}
+		d := v_1_0.AuxInt
+		v.reset(OpEq64)
+		v0 := b.NewValue0(v.Pos, OpConst64, t)
+		v0.AuxInt = c - d
+		v.AddArg(v0)
+		v.AddArg(x)
+		return true
+	}
+	// match: (Eq64 (Const64 <t> [c]) (Add64 x (Const64 <t> [d])))
+	// cond:
+	// result: (Eq64 (Const64 <t> [c-d]) x)
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst64 {
+			break
+		}
+		t := v_0.Type
+		c := v_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpAdd64 {
+			break
+		}
+		_ = v_1.Args[1]
+		x := v_1.Args[0]
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1.Type != t {
+			break
+		}
+		d := v_1_1.AuxInt
+		v.reset(OpEq64)
+		v0 := b.NewValue0(v.Pos, OpConst64, t)
+		v0.AuxInt = c - d
+		v.AddArg(v0)
+		v.AddArg(x)
+		return true
+	}
+	// match: (Eq64 (Add64 (Const64 <t> [d]) x) (Const64 <t> [c]))
+	// cond:
+	// result: (Eq64 (Const64 <t> [c-d]) x)
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpAdd64 {
+			break
+		}
+		x := v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst64 {
+			break
+		}
+		t := v_0_0.Type
+		d := v_0_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst64 {
+			break
+		}
+		if v_1.Type != t {
+			break
+		}
+		c := v_1.AuxInt
+		v.reset(OpEq64)
+		v0 := b.NewValue0(v.Pos, OpConst64, t)
+		v0.AuxInt = c - d
+		v.AddArg(v0)
+		v.AddArg(x)
+		return true
+	}
+	// match: (Eq64 (Add64 x (Const64 <t> [d])) (Const64 <t> [c]))
+	// cond:
+	// result: (Eq64 (Const64 <t> [c-d]) x)
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_0.Args[1]
+		x := v_0.Args[0]
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		t := v_0_1.Type
+		d := v_0_1.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst64 {
+			break
+		}
+		if v_1.Type != t {
+			break
+		}
+		c := v_1.AuxInt
+		v.reset(OpEq64)
+		v0 := b.NewValue0(v.Pos, OpConst64, t)
+		v0.AuxInt = c - d
+		v.AddArg(v0)
+		v.AddArg(x)
+		return true
+	}
+	// match: (Eq64 (Const64 [c]) (Const64 [d]))
+	// cond:
+	// result: (ConstBool [b2i(c == d)])
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst64 {
+			break
+		}
+		c := v_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst64 {
+			break
+		}
+		d := v_1.AuxInt
+		v.reset(OpConstBool)
+		v.AuxInt = b2i(c == d)
+		return true
+	}
+	// match: (Eq64 (Const64 [d]) (Const64 [c]))
+	// cond:
+	// result: (ConstBool [b2i(c == d)])
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst64 {
+			break
+		}
+		d := v_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst64 {
+			break
+		}
+		c := v_1.AuxInt
+		v.reset(OpConstBool)
+		v.AuxInt = b2i(c == d)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Const64 [c]) (Rsh64Ux64 mul:(Hmul64u (Const64 [m]) x) (Const64 [s]))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64,c).m/2) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst64 {
+			break
+		}
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_1_1.Args[1]
+		mul := v_1_1.Args[0]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64, c).m/2) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Const64 [c]) (Rsh64Ux64 mul:(Hmul64u x (Const64 [m])) (Const64 [s]))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64,c).m/2) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst64 {
+			break
+		}
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_1_1.Args[1]
+		mul := v_1_1.Args[0]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64, c).m/2) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Rsh64Ux64 mul:(Hmul64u (Const64 [m]) x) (Const64 [s])) (Const64 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64,c).m/2) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		mul := v_1_0.Args[0]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64, c).m/2) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	return false
+}
+func rewriteValuegeneric_OpEq64_10(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
+	// match: (Eq64 x (Mul64 (Rsh64Ux64 mul:(Hmul64u x (Const64 [m])) (Const64 [s])) (Const64 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64,c).m/2) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		mul := v_1_0.Args[0]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64, c).m/2) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Const64 [c]) (Rsh64Ux64 mul:(Hmul64u (Const64 [m]) x) (Const64 [s]))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64,c).m/2) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst64 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_0_1.Args[1]
+		mul := v_0_1.Args[0]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64, c).m/2) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Const64 [c]) (Rsh64Ux64 mul:(Hmul64u x (Const64 [m])) (Const64 [s]))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64,c).m/2) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst64 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_0_1.Args[1]
+		mul := v_0_1.Args[0]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64, c).m/2) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Rsh64Ux64 mul:(Hmul64u (Const64 [m]) x) (Const64 [s])) (Const64 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64,c).m/2) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		mul := v_0_0.Args[0]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64, c).m/2) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Rsh64Ux64 mul:(Hmul64u x (Const64 [m])) (Const64 [s])) (Const64 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64,c).m/2) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		mul := v_0_0.Args[0]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+umagic(64, c).m/2) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Const64 [c]) (Rsh64Ux64 mul:(Hmul64u (Const64 [m]) (Rsh64Ux64 x (Const64 [1]))) (Const64 [s]))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64,c).m+1)/2) && s == umagic(64,c).s-2 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst64 {
+			break
+		}
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_1_1.Args[1]
+		mul := v_1_1.Args[0]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = mul_1.Args[1]
+		if x != mul_1.Args[0] {
+			break
+		}
+		mul_1_1 := mul_1.Args[1]
+		if mul_1_1.Op != OpConst64 {
+			break
+		}
+		if mul_1_1.AuxInt != 1 {
+			break
+		}
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64, c).m+1)/2) && s == umagic(64, c).s-2 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Const64 [c]) (Rsh64Ux64 mul:(Hmul64u (Rsh64Ux64 x (Const64 [1])) (Const64 [m])) (Const64 [s]))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64,c).m+1)/2) && s == umagic(64,c).s-2 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst64 {
+			break
+		}
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_1_1.Args[1]
+		mul := v_1_1.Args[0]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = mul_0.Args[1]
+		if x != mul_0.Args[0] {
+			break
+		}
+		mul_0_1 := mul_0.Args[1]
+		if mul_0_1.Op != OpConst64 {
+			break
+		}
+		if mul_0_1.AuxInt != 1 {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64, c).m+1)/2) && s == umagic(64, c).s-2 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Rsh64Ux64 mul:(Hmul64u (Const64 [m]) (Rsh64Ux64 x (Const64 [1]))) (Const64 [s])) (Const64 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64,c).m+1)/2) && s == umagic(64,c).s-2 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		mul := v_1_0.Args[0]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = mul_1.Args[1]
+		if x != mul_1.Args[0] {
+			break
+		}
+		mul_1_1 := mul_1.Args[1]
+		if mul_1_1.Op != OpConst64 {
+			break
+		}
+		if mul_1_1.AuxInt != 1 {
+			break
+		}
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64, c).m+1)/2) && s == umagic(64, c).s-2 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Rsh64Ux64 mul:(Hmul64u (Rsh64Ux64 x (Const64 [1])) (Const64 [m])) (Const64 [s])) (Const64 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64,c).m+1)/2) && s == umagic(64,c).s-2 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		mul := v_1_0.Args[0]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = mul_0.Args[1]
+		if x != mul_0.Args[0] {
+			break
+		}
+		mul_0_1 := mul_0.Args[1]
+		if mul_0_1.Op != OpConst64 {
+			break
+		}
+		if mul_0_1.AuxInt != 1 {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64, c).m+1)/2) && s == umagic(64, c).s-2 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Const64 [c]) (Rsh64Ux64 mul:(Hmul64u (Const64 [m]) (Rsh64Ux64 x (Const64 [1]))) (Const64 [s]))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64,c).m+1)/2) && s == umagic(64,c).s-2 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst64 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_0_1.Args[1]
+		mul := v_0_1.Args[0]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = mul_1.Args[1]
+		if x != mul_1.Args[0] {
+			break
+		}
+		mul_1_1 := mul_1.Args[1]
+		if mul_1_1.Op != OpConst64 {
+			break
+		}
+		if mul_1_1.AuxInt != 1 {
+			break
+		}
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64, c).m+1)/2) && s == umagic(64, c).s-2 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	return false
+}
+func rewriteValuegeneric_OpEq64_20(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
+	// match: (Eq64 (Mul64 (Const64 [c]) (Rsh64Ux64 mul:(Hmul64u (Rsh64Ux64 x (Const64 [1])) (Const64 [m])) (Const64 [s]))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64,c).m+1)/2) && s == umagic(64,c).s-2 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst64 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_0_1.Args[1]
+		mul := v_0_1.Args[0]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = mul_0.Args[1]
+		if x != mul_0.Args[0] {
+			break
+		}
+		mul_0_1 := mul_0.Args[1]
+		if mul_0_1.Op != OpConst64 {
+			break
+		}
+		if mul_0_1.AuxInt != 1 {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64, c).m+1)/2) && s == umagic(64, c).s-2 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Rsh64Ux64 mul:(Hmul64u (Const64 [m]) (Rsh64Ux64 x (Const64 [1]))) (Const64 [s])) (Const64 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64,c).m+1)/2) && s == umagic(64,c).s-2 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		mul := v_0_0.Args[0]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = mul_1.Args[1]
+		if x != mul_1.Args[0] {
+			break
+		}
+		mul_1_1 := mul_1.Args[1]
+		if mul_1_1.Op != OpConst64 {
+			break
+		}
+		if mul_1_1.AuxInt != 1 {
+			break
+		}
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64, c).m+1)/2) && s == umagic(64, c).s-2 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Rsh64Ux64 mul:(Hmul64u (Rsh64Ux64 x (Const64 [1])) (Const64 [m])) (Const64 [s])) (Const64 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64,c).m+1)/2) && s == umagic(64,c).s-2 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		mul := v_0_0.Args[0]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = mul_0.Args[1]
+		if x != mul_0.Args[0] {
+			break
+		}
+		mul_0_1 := mul_0.Args[1]
+		if mul_0_1.Op != OpConst64 {
+			break
+		}
+		if mul_0_1.AuxInt != 1 {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<63+(umagic(64, c).m+1)/2) && s == umagic(64, c).s-2 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Const64 [c]) (Rsh64Ux64 (Avg64u x mul:(Hmul64u (Const64 [m]) x)) (Const64 [s]))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64,c).m) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst64 {
+			break
+		}
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_1_1.Args[1]
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpAvg64u {
+			break
+		}
+		_ = v_1_1_0.Args[1]
+		if x != v_1_1_0.Args[0] {
+			break
+		}
+		mul := v_1_1_0.Args[1]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64, c).m) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Const64 [c]) (Rsh64Ux64 (Avg64u x mul:(Hmul64u x (Const64 [m]))) (Const64 [s]))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64,c).m) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst64 {
+			break
+		}
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_1_1.Args[1]
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpAvg64u {
+			break
+		}
+		_ = v_1_1_0.Args[1]
+		if x != v_1_1_0.Args[0] {
+			break
+		}
+		mul := v_1_1_0.Args[1]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64, c).m) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Rsh64Ux64 (Avg64u x mul:(Hmul64u (Const64 [m]) x)) (Const64 [s])) (Const64 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64,c).m) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpAvg64u {
+			break
+		}
+		_ = v_1_0_0.Args[1]
+		if x != v_1_0_0.Args[0] {
+			break
+		}
+		mul := v_1_0_0.Args[1]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64, c).m) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Rsh64Ux64 (Avg64u x mul:(Hmul64u x (Const64 [m]))) (Const64 [s])) (Const64 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64,c).m) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpAvg64u {
+			break
+		}
+		_ = v_1_0_0.Args[1]
+		if x != v_1_0_0.Args[0] {
+			break
+		}
+		mul := v_1_0_0.Args[1]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64, c).m) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Const64 [c]) (Rsh64Ux64 (Avg64u x mul:(Hmul64u (Const64 [m]) x)) (Const64 [s]))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64,c).m) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst64 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_0_1.Args[1]
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpAvg64u {
+			break
+		}
+		_ = v_0_1_0.Args[1]
+		if x != v_0_1_0.Args[0] {
+			break
+		}
+		mul := v_0_1_0.Args[1]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64, c).m) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Const64 [c]) (Rsh64Ux64 (Avg64u x mul:(Hmul64u x (Const64 [m]))) (Const64 [s]))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64,c).m) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst64 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_0_1.Args[1]
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpAvg64u {
+			break
+		}
+		_ = v_0_1_0.Args[1]
+		if x != v_0_1_0.Args[0] {
+			break
+		}
+		mul := v_0_1_0.Args[1]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64, c).m) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Rsh64Ux64 (Avg64u x mul:(Hmul64u (Const64 [m]) x)) (Const64 [s])) (Const64 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64,c).m) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpAvg64u {
+			break
+		}
+		_ = v_0_0_0.Args[1]
+		if x != v_0_0_0.Args[0] {
+			break
+		}
+		mul := v_0_0_0.Args[1]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64, c).m) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	return false
+}
+func rewriteValuegeneric_OpEq64_30(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
+	// match: (Eq64 (Mul64 (Rsh64Ux64 (Avg64u x mul:(Hmul64u x (Const64 [m]))) (Const64 [s])) (Const64 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64,c).m) && s == umagic(64,c).s-1 && x.Op != OpConst64 && udivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(udivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(64-udivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(udivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh64Ux64 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpAvg64u {
+			break
+		}
+		_ = v_0_0_0.Args[1]
+		if x != v_0_0_0.Args[0] {
+			break
+		}
+		mul := v_0_0_0.Args[1]
+		if mul.Op != OpHmul64u {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(umagic(64, c).m) && s == umagic(64, c).s-1 && x.Op != OpConst64 && udivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v2.AuxInt = int64(udivisible(64, c).m)
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(64 - udivisible(64, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(udivisible(64, c).max)
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Const64 [c]) (Sub64 (Rsh64x64 mul:(Hmul64 (Const64 [m]) x) (Const64 [s])) (Rsh64x64 x (Const64 [63])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m/2) && s == smagic(64,c).s-1 && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst64 {
+			break
+		}
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpSub64 {
+			break
+		}
+		_ = v_1_1.Args[1]
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_1_0.Args[1]
+		mul := v_1_1_0.Args[0]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_0_1.AuxInt
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_1_1.Args[1]
+		if x != v_1_1_1.Args[0] {
+			break
+		}
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1_1_1.AuxInt != 63 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m/2) && s == smagic(64, c).s-1 && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Const64 [c]) (Sub64 (Rsh64x64 mul:(Hmul64 x (Const64 [m])) (Const64 [s])) (Rsh64x64 x (Const64 [63])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m/2) && s == smagic(64,c).s-1 && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst64 {
+			break
+		}
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpSub64 {
+			break
+		}
+		_ = v_1_1.Args[1]
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_1_0.Args[1]
+		mul := v_1_1_0.Args[0]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_0_1.AuxInt
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_1_1.Args[1]
+		if x != v_1_1_1.Args[0] {
+			break
+		}
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1_1_1.AuxInt != 63 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m/2) && s == smagic(64, c).s-1 && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Sub64 (Rsh64x64 mul:(Hmul64 (Const64 [m]) x) (Const64 [s])) (Rsh64x64 x (Const64 [63]))) (Const64 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m/2) && s == smagic(64,c).s-1 && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpSub64 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0_0.Args[1]
+		mul := v_1_0_0.Args[0]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_0_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0_1.Args[1]
+		if x != v_1_0_1.Args[0] {
+			break
+		}
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1_1.AuxInt != 63 {
+			break
+		}
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m/2) && s == smagic(64, c).s-1 && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Sub64 (Rsh64x64 mul:(Hmul64 x (Const64 [m])) (Const64 [s])) (Rsh64x64 x (Const64 [63]))) (Const64 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m/2) && s == smagic(64,c).s-1 && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpSub64 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0_0.Args[1]
+		mul := v_1_0_0.Args[0]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_0_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0_1.Args[1]
+		if x != v_1_0_1.Args[0] {
+			break
+		}
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1_1.AuxInt != 63 {
+			break
+		}
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m/2) && s == smagic(64, c).s-1 && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Const64 [c]) (Sub64 (Rsh64x64 mul:(Hmul64 (Const64 [m]) x) (Const64 [s])) (Rsh64x64 x (Const64 [63])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m/2) && s == smagic(64,c).s-1 && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst64 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpSub64 {
+			break
+		}
+		_ = v_0_1.Args[1]
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_1_0.Args[1]
+		mul := v_0_1_0.Args[0]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_0_1.AuxInt
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_1_1.Args[1]
+		if x != v_0_1_1.Args[0] {
+			break
+		}
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 63 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m/2) && s == smagic(64, c).s-1 && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Const64 [c]) (Sub64 (Rsh64x64 mul:(Hmul64 x (Const64 [m])) (Const64 [s])) (Rsh64x64 x (Const64 [63])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m/2) && s == smagic(64,c).s-1 && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst64 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpSub64 {
+			break
+		}
+		_ = v_0_1.Args[1]
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_1_0.Args[1]
+		mul := v_0_1_0.Args[0]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_0_1.AuxInt
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_1_1.Args[1]
+		if x != v_0_1_1.Args[0] {
+			break
+		}
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 63 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m/2) && s == smagic(64, c).s-1 && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Sub64 (Rsh64x64 mul:(Hmul64 (Const64 [m]) x) (Const64 [s])) (Rsh64x64 x (Const64 [63]))) (Const64 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m/2) && s == smagic(64,c).s-1 && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpSub64 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0_0.Args[1]
+		mul := v_0_0_0.Args[0]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_0_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0_1.Args[1]
+		if x != v_0_0_1.Args[0] {
+			break
+		}
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1_1.AuxInt != 63 {
+			break
+		}
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m/2) && s == smagic(64, c).s-1 && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Sub64 (Rsh64x64 mul:(Hmul64 x (Const64 [m])) (Const64 [s])) (Rsh64x64 x (Const64 [63]))) (Const64 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m/2) && s == smagic(64,c).s-1 && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpSub64 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0_0.Args[1]
+		mul := v_0_0_0.Args[0]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_0_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0_1.Args[1]
+		if x != v_0_0_1.Args[0] {
+			break
+		}
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1_1.AuxInt != 63 {
+			break
+		}
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m/2) && s == smagic(64, c).s-1 && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Const64 [c]) (Sub64 (Rsh64x64 (Add64 mul:(Hmul64 (Const64 [m]) x) x) (Const64 [s])) (Rsh64x64 x (Const64 [63])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m) && s == smagic(64,c).s && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst64 {
+			break
+		}
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpSub64 {
+			break
+		}
+		_ = v_1_1.Args[1]
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_1_0.Args[1]
+		v_1_1_0_0 := v_1_1_0.Args[0]
+		if v_1_1_0_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_1_1_0_0.Args[1]
+		mul := v_1_1_0_0.Args[0]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		if x != v_1_1_0_0.Args[1] {
+			break
+		}
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_0_1.AuxInt
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_1_1.Args[1]
+		if x != v_1_1_1.Args[0] {
+			break
+		}
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1_1_1.AuxInt != 63 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m) && s == smagic(64, c).s && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	return false
+}
+func rewriteValuegeneric_OpEq64_40(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
+	// match: (Eq64 x (Mul64 (Const64 [c]) (Sub64 (Rsh64x64 (Add64 mul:(Hmul64 x (Const64 [m])) x) (Const64 [s])) (Rsh64x64 x (Const64 [63])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m) && s == smagic(64,c).s && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst64 {
+			break
+		}
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpSub64 {
+			break
+		}
+		_ = v_1_1.Args[1]
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_1_0.Args[1]
+		v_1_1_0_0 := v_1_1_0.Args[0]
+		if v_1_1_0_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_1_1_0_0.Args[1]
+		mul := v_1_1_0_0.Args[0]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		if x != v_1_1_0_0.Args[1] {
+			break
+		}
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_0_1.AuxInt
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_1_1.Args[1]
+		if x != v_1_1_1.Args[0] {
+			break
+		}
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1_1_1.AuxInt != 63 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m) && s == smagic(64, c).s && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Const64 [c]) (Sub64 (Rsh64x64 (Add64 x mul:(Hmul64 (Const64 [m]) x)) (Const64 [s])) (Rsh64x64 x (Const64 [63])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m) && s == smagic(64,c).s && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst64 {
+			break
+		}
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpSub64 {
+			break
+		}
+		_ = v_1_1.Args[1]
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_1_0.Args[1]
+		v_1_1_0_0 := v_1_1_0.Args[0]
+		if v_1_1_0_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_1_1_0_0.Args[1]
+		if x != v_1_1_0_0.Args[0] {
+			break
+		}
+		mul := v_1_1_0_0.Args[1]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_0_1.AuxInt
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_1_1.Args[1]
+		if x != v_1_1_1.Args[0] {
+			break
+		}
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1_1_1.AuxInt != 63 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m) && s == smagic(64, c).s && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Const64 [c]) (Sub64 (Rsh64x64 (Add64 x mul:(Hmul64 x (Const64 [m]))) (Const64 [s])) (Rsh64x64 x (Const64 [63])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m) && s == smagic(64,c).s && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst64 {
+			break
+		}
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpSub64 {
+			break
+		}
+		_ = v_1_1.Args[1]
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_1_0.Args[1]
+		v_1_1_0_0 := v_1_1_0.Args[0]
+		if v_1_1_0_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_1_1_0_0.Args[1]
+		if x != v_1_1_0_0.Args[0] {
+			break
+		}
+		mul := v_1_1_0_0.Args[1]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_0_1.AuxInt
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_1_1.Args[1]
+		if x != v_1_1_1.Args[0] {
+			break
+		}
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1_1_1.AuxInt != 63 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m) && s == smagic(64, c).s && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Sub64 (Rsh64x64 (Add64 mul:(Hmul64 (Const64 [m]) x) x) (Const64 [s])) (Rsh64x64 x (Const64 [63]))) (Const64 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m) && s == smagic(64,c).s && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpSub64 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0_0.Args[1]
+		v_1_0_0_0 := v_1_0_0.Args[0]
+		if v_1_0_0_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_1_0_0_0.Args[1]
+		mul := v_1_0_0_0.Args[0]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		if x != v_1_0_0_0.Args[1] {
+			break
+		}
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_0_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0_1.Args[1]
+		if x != v_1_0_1.Args[0] {
+			break
+		}
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1_1.AuxInt != 63 {
+			break
+		}
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m) && s == smagic(64, c).s && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Sub64 (Rsh64x64 (Add64 mul:(Hmul64 x (Const64 [m])) x) (Const64 [s])) (Rsh64x64 x (Const64 [63]))) (Const64 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m) && s == smagic(64,c).s && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpSub64 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0_0.Args[1]
+		v_1_0_0_0 := v_1_0_0.Args[0]
+		if v_1_0_0_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_1_0_0_0.Args[1]
+		mul := v_1_0_0_0.Args[0]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		if x != v_1_0_0_0.Args[1] {
+			break
+		}
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_0_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0_1.Args[1]
+		if x != v_1_0_1.Args[0] {
+			break
+		}
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1_1.AuxInt != 63 {
+			break
+		}
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m) && s == smagic(64, c).s && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Sub64 (Rsh64x64 (Add64 x mul:(Hmul64 (Const64 [m]) x)) (Const64 [s])) (Rsh64x64 x (Const64 [63]))) (Const64 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m) && s == smagic(64,c).s && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpSub64 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0_0.Args[1]
+		v_1_0_0_0 := v_1_0_0.Args[0]
+		if v_1_0_0_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_1_0_0_0.Args[1]
+		if x != v_1_0_0_0.Args[0] {
+			break
+		}
+		mul := v_1_0_0_0.Args[1]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_0_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0_1.Args[1]
+		if x != v_1_0_1.Args[0] {
+			break
+		}
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1_1.AuxInt != 63 {
+			break
+		}
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m) && s == smagic(64, c).s && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 x (Mul64 (Sub64 (Rsh64x64 (Add64 x mul:(Hmul64 x (Const64 [m]))) (Const64 [s])) (Rsh64x64 x (Const64 [63]))) (Const64 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m) && s == smagic(64,c).s && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpSub64 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0_0.Args[1]
+		v_1_0_0_0 := v_1_0_0.Args[0]
+		if v_1_0_0_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_1_0_0_0.Args[1]
+		if x != v_1_0_0_0.Args[0] {
+			break
+		}
+		mul := v_1_0_0_0.Args[1]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_0_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0_1.Args[1]
+		if x != v_1_0_1.Args[0] {
+			break
+		}
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1_1.AuxInt != 63 {
+			break
+		}
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m) && s == smagic(64, c).s && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Const64 [c]) (Sub64 (Rsh64x64 (Add64 mul:(Hmul64 (Const64 [m]) x) x) (Const64 [s])) (Rsh64x64 x (Const64 [63])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m) && s == smagic(64,c).s && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst64 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpSub64 {
+			break
+		}
+		_ = v_0_1.Args[1]
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_1_0.Args[1]
+		v_0_1_0_0 := v_0_1_0.Args[0]
+		if v_0_1_0_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_0_1_0_0.Args[1]
+		mul := v_0_1_0_0.Args[0]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		if x != v_0_1_0_0.Args[1] {
+			break
+		}
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_0_1.AuxInt
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_1_1.Args[1]
+		if x != v_0_1_1.Args[0] {
+			break
+		}
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 63 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m) && s == smagic(64, c).s && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Const64 [c]) (Sub64 (Rsh64x64 (Add64 mul:(Hmul64 x (Const64 [m])) x) (Const64 [s])) (Rsh64x64 x (Const64 [63])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m) && s == smagic(64,c).s && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst64 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpSub64 {
+			break
+		}
+		_ = v_0_1.Args[1]
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_1_0.Args[1]
+		v_0_1_0_0 := v_0_1_0.Args[0]
+		if v_0_1_0_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_0_1_0_0.Args[1]
+		mul := v_0_1_0_0.Args[0]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		if x != v_0_1_0_0.Args[1] {
+			break
+		}
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_0_1.AuxInt
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_1_1.Args[1]
+		if x != v_0_1_1.Args[0] {
+			break
+		}
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 63 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m) && s == smagic(64, c).s && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Const64 [c]) (Sub64 (Rsh64x64 (Add64 x mul:(Hmul64 (Const64 [m]) x)) (Const64 [s])) (Rsh64x64 x (Const64 [63])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m) && s == smagic(64,c).s && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst64 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpSub64 {
+			break
+		}
+		_ = v_0_1.Args[1]
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_1_0.Args[1]
+		v_0_1_0_0 := v_0_1_0.Args[0]
+		if v_0_1_0_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_0_1_0_0.Args[1]
+		if x != v_0_1_0_0.Args[0] {
+			break
+		}
+		mul := v_0_1_0_0.Args[1]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_0_1.AuxInt
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_1_1.Args[1]
+		if x != v_0_1_1.Args[0] {
+			break
+		}
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 63 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m) && s == smagic(64, c).s && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	return false
+}
+func rewriteValuegeneric_OpEq64_50(v *Value) bool {
+	b := v.Block
+	typ := &b.Func.Config.Types
+	// match: (Eq64 (Mul64 (Const64 [c]) (Sub64 (Rsh64x64 (Add64 x mul:(Hmul64 x (Const64 [m]))) (Const64 [s])) (Rsh64x64 x (Const64 [63])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m) && s == smagic(64,c).s && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst64 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpSub64 {
+			break
+		}
+		_ = v_0_1.Args[1]
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_1_0.Args[1]
+		v_0_1_0_0 := v_0_1_0.Args[0]
+		if v_0_1_0_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_0_1_0_0.Args[1]
+		if x != v_0_1_0_0.Args[0] {
+			break
+		}
+		mul := v_0_1_0_0.Args[1]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_0_1.AuxInt
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_1_1.Args[1]
+		if x != v_0_1_1.Args[0] {
+			break
+		}
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 63 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m) && s == smagic(64, c).s && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Sub64 (Rsh64x64 (Add64 mul:(Hmul64 (Const64 [m]) x) x) (Const64 [s])) (Rsh64x64 x (Const64 [63]))) (Const64 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m) && s == smagic(64,c).s && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpSub64 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0_0.Args[1]
+		v_0_0_0_0 := v_0_0_0.Args[0]
+		if v_0_0_0_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_0_0_0_0.Args[1]
+		mul := v_0_0_0_0.Args[0]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		if x != v_0_0_0_0.Args[1] {
+			break
+		}
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_0_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0_1.Args[1]
+		if x != v_0_0_1.Args[0] {
+			break
+		}
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1_1.AuxInt != 63 {
+			break
+		}
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m) && s == smagic(64, c).s && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Sub64 (Rsh64x64 (Add64 mul:(Hmul64 x (Const64 [m])) x) (Const64 [s])) (Rsh64x64 x (Const64 [63]))) (Const64 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m) && s == smagic(64,c).s && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpSub64 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0_0.Args[1]
+		v_0_0_0_0 := v_0_0_0.Args[0]
+		if v_0_0_0_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_0_0_0_0.Args[1]
+		mul := v_0_0_0_0.Args[0]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		if x != v_0_0_0_0.Args[1] {
+			break
+		}
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_0_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0_1.Args[1]
+		if x != v_0_0_1.Args[0] {
+			break
+		}
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1_1.AuxInt != 63 {
+			break
+		}
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m) && s == smagic(64, c).s && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Sub64 (Rsh64x64 (Add64 x mul:(Hmul64 (Const64 [m]) x)) (Const64 [s])) (Rsh64x64 x (Const64 [63]))) (Const64 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m) && s == smagic(64,c).s && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpSub64 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0_0.Args[1]
+		v_0_0_0_0 := v_0_0_0.Args[0]
+		if v_0_0_0_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_0_0_0_0.Args[1]
+		if x != v_0_0_0_0.Args[0] {
+			break
+		}
+		mul := v_0_0_0_0.Args[1]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst64 {
+			break
+		}
+		m := mul_0.AuxInt
+		if x != mul.Args[1] {
+			break
+		}
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_0_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0_1.Args[1]
+		if x != v_0_0_1.Args[0] {
+			break
+		}
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1_1.AuxInt != 63 {
+			break
+		}
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m) && s == smagic(64, c).s && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 (Mul64 (Sub64 (Rsh64x64 (Add64 x mul:(Hmul64 x (Const64 [m]))) (Const64 [s])) (Rsh64x64 x (Const64 [63]))) (Const64 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64,c).m) && s == smagic(64,c).s && x.Op != OpConst64 && sdivisibleOK(64,c)
+	// result: (Leq64U (RotateLeft64 <typ.UInt64> (Add64 <typ.UInt64> (Mul64 <typ.UInt64> (Const64 <typ.UInt64> [int64(sdivisible(64,c).m)]) x) (Const64 <typ.UInt64> [int64(sdivisible(64,c).a)]) ) (Const64 <typ.UInt64> [int64(64-sdivisible(64,c).k)]) ) (Const64 <typ.UInt64> [int64(sdivisible(64,c).max)]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpSub64 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0_0.Args[1]
+		v_0_0_0_0 := v_0_0_0.Args[0]
+		if v_0_0_0_0.Op != OpAdd64 {
+			break
+		}
+		_ = v_0_0_0_0.Args[1]
+		if x != v_0_0_0_0.Args[0] {
+			break
+		}
+		mul := v_0_0_0_0.Args[1]
+		if mul.Op != OpHmul64 {
+			break
+		}
+		_ = mul.Args[1]
+		if x != mul.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst64 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_0_0_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0_1.Args[1]
+		if x != v_0_0_1.Args[0] {
+			break
+		}
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1_1.AuxInt != 63 {
+			break
+		}
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(64, c).m) && s == smagic(64, c).s && x.Op != OpConst64 && sdivisibleOK(64, c)) {
+			break
+		}
+		v.reset(OpLeq64U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft64, typ.UInt64)
+		v1 := b.NewValue0(v.Pos, OpAdd64, typ.UInt64)
+		v2 := b.NewValue0(v.Pos, OpMul64, typ.UInt64)
+		v3 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v3.AuxInt = int64(sdivisible(64, c).m)
+		v2.AddArg(v3)
+		v2.AddArg(x)
+		v1.AddArg(v2)
+		v4 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v4.AuxInt = int64(sdivisible(64, c).a)
+		v1.AddArg(v4)
+		v0.AddArg(v1)
+		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v5.AuxInt = int64(64 - sdivisible(64, c).k)
+		v0.AddArg(v5)
+		v.AddArg(v0)
+		v6 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)
+		v6.AuxInt = int64(sdivisible(64, c).max)
+		v.AddArg(v6)
+		return true
+	}
+	// match: (Eq64 n (Lsh64x64 (Rsh64x64 (Add64 <t> n (Rsh64Ux64 <t> (Rsh64x64 <t> n (Const64 <typ.UInt64> [63])) (Const64 <typ.UInt64> [kbar]))) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])))
+	// cond: k > 0 && k < 63 && kbar == 64 - k
+	// result: (Eq64 (And64 <t> n (Const64 <t> [int64(1<<uint(k)-1)])) (Const64 <t> [0]))
+	for {
+		_ = v.Args[1]
+		n := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpLsh64x64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpAdd64 {
+			break
+		}
+		t := v_1_0_0.Type
+		_ = v_1_0_0.Args[1]
+		if n != v_1_0_0.Args[0] {
+			break
+		}
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpRsh64Ux64 {
+			break
+		}
+		if v_1_0_0_1.Type != t {
+			break
+		}
+		_ = v_1_0_0_1.Args[1]
+		v_1_0_0_1_0 := v_1_0_0_1.Args[0]
+		if v_1_0_0_1_0.Op != OpRsh64x64 {
+			break
+		}
+		if v_1_0_0_1_0.Type != t {
+			break
+		}
+		_ = v_1_0_0_1_0.Args[1]
+		if n != v_1_0_0_1_0.Args[0] {
+			break
+		}
+		v_1_0_0_1_0_1 := v_1_0_0_1_0.Args[1]
+		if v_1_0_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_0_1_0_1.Type != typ.UInt64 {
+			break
+		}
+		if v_1_0_0_1_0_1.AuxInt != 63 {
+			break
+		}
+		v_1_0_0_1_1 := v_1_0_0_1.Args[1]
+		if v_1_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_0_1_1.Type != typ.UInt64 {
+			break
+		}
+		kbar := v_1_0_0_1_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1.Type != typ.UInt64 {
+			break
+		}
+		k := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1.Type != typ.UInt64 {
+			break
+		}
+		if v_1_1.AuxInt != k {
+			break
+		}
+		if !(k > 0 && k < 63 && kbar == 64-k) {
+			break
+		}
+		v.reset(OpEq64)
+		v0 := b.NewValue0(v.Pos, OpAnd64, t)
+		v0.AddArg(n)
+		v1 := b.NewValue0(v.Pos, OpConst64, t)
+		v1.AuxInt = int64(1<<uint(k) - 1)
+		v0.AddArg(v1)
+		v.AddArg(v0)
+		v2 := b.NewValue0(v.Pos, OpConst64, t)
+		v2.AuxInt = 0
+		v.AddArg(v2)
+		return true
+	}
+	// match: (Eq64 n (Lsh64x64 (Rsh64x64 (Add64 <t> (Rsh64Ux64 <t> (Rsh64x64 <t> n (Const64 <typ.UInt64> [63])) (Const64 <typ.UInt64> [kbar])) n) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])))
+	// cond: k > 0 && k < 63 && kbar == 64 - k
+	// result: (Eq64 (And64 <t> n (Const64 <t> [int64(1<<uint(k)-1)])) (Const64 <t> [0]))
+	for {
+		_ = v.Args[1]
+		n := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpLsh64x64 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_1_0.Args[1]
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpAdd64 {
+			break
+		}
+		t := v_1_0_0.Type
+		_ = v_1_0_0.Args[1]
+		v_1_0_0_0 := v_1_0_0.Args[0]
+		if v_1_0_0_0.Op != OpRsh64Ux64 {
+			break
+		}
+		if v_1_0_0_0.Type != t {
+			break
+		}
+		_ = v_1_0_0_0.Args[1]
+		v_1_0_0_0_0 := v_1_0_0_0.Args[0]
+		if v_1_0_0_0_0.Op != OpRsh64x64 {
+			break
+		}
+		if v_1_0_0_0_0.Type != t {
+			break
+		}
+		_ = v_1_0_0_0_0.Args[1]
+		if n != v_1_0_0_0_0.Args[0] {
+			break
+		}
+		v_1_0_0_0_0_1 := v_1_0_0_0_0.Args[1]
+		if v_1_0_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_0_0_0_1.Type != typ.UInt64 {
+			break
+		}
+		if v_1_0_0_0_0_1.AuxInt != 63 {
+			break
+		}
+		v_1_0_0_0_1 := v_1_0_0_0.Args[1]
+		if v_1_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_0_0_1.Type != typ.UInt64 {
+			break
+		}
+		kbar := v_1_0_0_0_1.AuxInt
+		if n != v_1_0_0.Args[1] {
+			break
+		}
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1.Type != typ.UInt64 {
+			break
+		}
+		k := v_1_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1.Type != typ.UInt64 {
+			break
+		}
+		if v_1_1.AuxInt != k {
+			break
+		}
+		if !(k > 0 && k < 63 && kbar == 64-k) {
+			break
+		}
+		v.reset(OpEq64)
+		v0 := b.NewValue0(v.Pos, OpAnd64, t)
+		v0.AddArg(n)
+		v1 := b.NewValue0(v.Pos, OpConst64, t)
+		v1.AuxInt = int64(1<<uint(k) - 1)
+		v0.AddArg(v1)
+		v.AddArg(v0)
+		v2 := b.NewValue0(v.Pos, OpConst64, t)
+		v2.AuxInt = 0
+		v.AddArg(v2)
+		return true
+	}
+	// match: (Eq64 (Lsh64x64 (Rsh64x64 (Add64 <t> n (Rsh64Ux64 <t> (Rsh64x64 <t> n (Const64 <typ.UInt64> [63])) (Const64 <typ.UInt64> [kbar]))) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])) n)
+	// cond: k > 0 && k < 63 && kbar == 64 - k
+	// result: (Eq64 (And64 <t> n (Const64 <t> [int64(1<<uint(k)-1)])) (Const64 <t> [0]))
+	for {
+		n := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpLsh64x64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpAdd64 {
+			break
+		}
+		t := v_0_0_0.Type
+		_ = v_0_0_0.Args[1]
+		if n != v_0_0_0.Args[0] {
+			break
+		}
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpRsh64Ux64 {
+			break
+		}
+		if v_0_0_0_1.Type != t {
+			break
+		}
+		_ = v_0_0_0_1.Args[1]
+		v_0_0_0_1_0 := v_0_0_0_1.Args[0]
+		if v_0_0_0_1_0.Op != OpRsh64x64 {
+			break
+		}
+		if v_0_0_0_1_0.Type != t {
+			break
+		}
+		_ = v_0_0_0_1_0.Args[1]
+		if n != v_0_0_0_1_0.Args[0] {
+			break
+		}
+		v_0_0_0_1_0_1 := v_0_0_0_1_0.Args[1]
+		if v_0_0_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_0_1_0_1.Type != typ.UInt64 {
+			break
+		}
+		if v_0_0_0_1_0_1.AuxInt != 63 {
+			break
+		}
+		v_0_0_0_1_1 := v_0_0_0_1.Args[1]
+		if v_0_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_0_1_1.Type != typ.UInt64 {
+			break
+		}
+		kbar := v_0_0_0_1_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1.Type != typ.UInt64 {
+			break
+		}
+		k := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1.Type != typ.UInt64 {
+			break
+		}
+		if v_0_1.AuxInt != k {
+			break
+		}
+		if !(k > 0 && k < 63 && kbar == 64-k) {
+			break
+		}
+		v.reset(OpEq64)
+		v0 := b.NewValue0(v.Pos, OpAnd64, t)
+		v0.AddArg(n)
+		v1 := b.NewValue0(v.Pos, OpConst64, t)
+		v1.AuxInt = int64(1<<uint(k) - 1)
+		v0.AddArg(v1)
+		v.AddArg(v0)
+		v2 := b.NewValue0(v.Pos, OpConst64, t)
+		v2.AuxInt = 0
+		v.AddArg(v2)
+		return true
+	}
+	// match: (Eq64 (Lsh64x64 (Rsh64x64 (Add64 <t> (Rsh64Ux64 <t> (Rsh64x64 <t> n (Const64 <typ.UInt64> [63])) (Const64 <typ.UInt64> [kbar])) n) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])) n)
+	// cond: k > 0 && k < 63 && kbar == 64 - k
+	// result: (Eq64 (And64 <t> n (Const64 <t> [int64(1<<uint(k)-1)])) (Const64 <t> [0]))
+	for {
+		n := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpLsh64x64 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpRsh64x64 {
+			break
+		}
+		_ = v_0_0.Args[1]
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpAdd64 {
+			break
+		}
+		t := v_0_0_0.Type
+		_ = v_0_0_0.Args[1]
+		v_0_0_0_0 := v_0_0_0.Args[0]
+		if v_0_0_0_0.Op != OpRsh64Ux64 {
+			break
+		}
+		if v_0_0_0_0.Type != t {
+			break
+		}
+		_ = v_0_0_0_0.Args[1]
+		v_0_0_0_0_0 := v_0_0_0_0.Args[0]
+		if v_0_0_0_0_0.Op != OpRsh64x64 {
+			break
+		}
+		if v_0_0_0_0_0.Type != t {
+			break
+		}
+		_ = v_0_0_0_0_0.Args[1]
+		if n != v_0_0_0_0_0.Args[0] {
+			break
+		}
+		v_0_0_0_0_0_1 := v_0_0_0_0_0.Args[1]
+		if v_0_0_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_0_0_0_1.Type != typ.UInt64 {
+			break
+		}
+		if v_0_0_0_0_0_1.AuxInt != 63 {
+			break
+		}
+		v_0_0_0_0_1 := v_0_0_0_0.Args[1]
+		if v_0_0_0_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_0_0_1.Type != typ.UInt64 {
+			break
+		}
+		kbar := v_0_0_0_0_1.AuxInt
+		if n != v_0_0_0.Args[1] {
+			break
+		}
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1.Type != typ.UInt64 {
+			break
+		}
+		k := v_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1.Type != typ.UInt64 {
+			break
+		}
+		if v_0_1.AuxInt != k {
+			break
+		}
+		if !(k > 0 && k < 63 && kbar == 64-k) {
+			break
+		}
+		v.reset(OpEq64)
+		v0 := b.NewValue0(v.Pos, OpAnd64, t)
+		v0.AddArg(n)
+		v1 := b.NewValue0(v.Pos, OpConst64, t)
+		v1.AuxInt = int64(1<<uint(k) - 1)
+		v0.AddArg(v1)
+		v.AddArg(v0)
+		v2 := b.NewValue0(v.Pos, OpConst64, t)
+		v2.AuxInt = 0
+		v.AddArg(v2)
+		return true
+	}
+	// match: (Eq64 s:(Sub64 x y) (Const64 [0]))
+	// cond: s.Uses == 1
+	// result: (Eq64 x y)
+	for {
+		_ = v.Args[1]
+		s := v.Args[0]
+		if s.Op != OpSub64 {
+			break
+		}
+		y := s.Args[1]
+		x := s.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst64 {
+			break
+		}
+		if v_1.AuxInt != 0 {
+			break
+		}
+		if !(s.Uses == 1) {
+			break
+		}
+		v.reset(OpEq64)
+		v.AddArg(x)
+		v.AddArg(y)
+		return true
+	}
+	return false
+}
+func rewriteValuegeneric_OpEq64_60(v *Value) bool {
+	// match: (Eq64 (Const64 [0]) s:(Sub64 x y))
+	// cond: s.Uses == 1
+	// result: (Eq64 x y)
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst64 {
+			break
+		}
+		if v_0.AuxInt != 0 {
+			break
+		}
+		s := v.Args[1]
+		if s.Op != OpSub64 {
+			break
+		}
+		y := s.Args[1]
+		x := s.Args[0]
+		if !(s.Uses == 1) {
+			break
+		}
+		v.reset(OpEq64)
+		v.AddArg(x)
+		v.AddArg(y)
+		return true
+	}
+	return false
+}
+func rewriteValuegeneric_OpEq64F_0(v *Value) bool {
+	// match: (Eq64F (Const64F [c]) (Const64F [d]))
+	// cond:
+	// result: (ConstBool [b2i(auxTo64F(c) == auxTo64F(d))])
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst64F {
+			break
+		}
+		c := v_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst64F {
+			break
+		}
+		d := v_1.AuxInt
+		v.reset(OpConstBool)
+		v.AuxInt = b2i(auxTo64F(c) == auxTo64F(d))
+		return true
+	}
+	// match: (Eq64F (Const64F [d]) (Const64F [c]))
+	// cond:
+	// result: (ConstBool [b2i(auxTo64F(c) == auxTo64F(d))])
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst64F {
+			break
+		}
+		d := v_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst64F {
+			break
+		}
+		c := v_1.AuxInt
+		v.reset(OpConstBool)
+		v.AuxInt = b2i(auxTo64F(c) == auxTo64F(d))
+		return true
+	}
+	return false
+}
+func rewriteValuegeneric_OpEq8_0(v *Value) bool {
+	b := v.Block
+	config := b.Func.Config
+	typ := &b.Func.Config.Types
+	// match: (Eq8 x x)
+	// cond:
+	// result: (ConstBool [1])
+	for {
+		x := v.Args[1]
+		if x != v.Args[0] {
+			break
+		}
+		v.reset(OpConstBool)
+		v.AuxInt = 1
+		return true
+	}
+	// match: (Eq8 (Const8 <t> [c]) (Add8 (Const8 <t> [d]) x))
+	// cond:
+	// result: (Eq8 (Const8 <t> [int64(int8(c-d))]) x)
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst8 {
+			break
+		}
+		t := v_0.Type
+		c := v_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpAdd8 {
+			break
+		}
+		x := v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst8 {
+			break
+		}
+		if v_1_0.Type != t {
+			break
+		}
+		d := v_1_0.AuxInt
+		v.reset(OpEq8)
+		v0 := b.NewValue0(v.Pos, OpConst8, t)
+		v0.AuxInt = int64(int8(c - d))
+		v.AddArg(v0)
+		v.AddArg(x)
+		return true
+	}
+	// match: (Eq8 (Const8 <t> [c]) (Add8 x (Const8 <t> [d])))
+	// cond:
+	// result: (Eq8 (Const8 <t> [int64(int8(c-d))]) x)
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst8 {
+			break
+		}
+		t := v_0.Type
+		c := v_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpAdd8 {
+			break
+		}
+		_ = v_1.Args[1]
+		x := v_1.Args[0]
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst8 {
+			break
+		}
+		if v_1_1.Type != t {
+			break
+		}
+		d := v_1_1.AuxInt
+		v.reset(OpEq8)
+		v0 := b.NewValue0(v.Pos, OpConst8, t)
+		v0.AuxInt = int64(int8(c - d))
+		v.AddArg(v0)
+		v.AddArg(x)
+		return true
+	}
+	// match: (Eq8 (Add8 (Const8 <t> [d]) x) (Const8 <t> [c]))
+	// cond:
+	// result: (Eq8 (Const8 <t> [int64(int8(c-d))]) x)
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpAdd8 {
+			break
+		}
+		x := v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst8 {
+			break
+		}
+		t := v_0_0.Type
+		d := v_0_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst8 {
+			break
+		}
+		if v_1.Type != t {
+			break
+		}
+		c := v_1.AuxInt
+		v.reset(OpEq8)
+		v0 := b.NewValue0(v.Pos, OpConst8, t)
+		v0.AuxInt = int64(int8(c - d))
+		v.AddArg(v0)
+		v.AddArg(x)
+		return true
+	}
+	// match: (Eq8 (Add8 x (Const8 <t> [d])) (Const8 <t> [c]))
+	// cond:
+	// result: (Eq8 (Const8 <t> [int64(int8(c-d))]) x)
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpAdd8 {
+			break
+		}
+		_ = v_0.Args[1]
+		x := v_0.Args[0]
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst8 {
+			break
+		}
+		t := v_0_1.Type
+		d := v_0_1.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst8 {
+			break
+		}
+		if v_1.Type != t {
+			break
+		}
+		c := v_1.AuxInt
+		v.reset(OpEq8)
+		v0 := b.NewValue0(v.Pos, OpConst8, t)
+		v0.AuxInt = int64(int8(c - d))
+		v.AddArg(v0)
+		v.AddArg(x)
+		return true
+	}
+	// match: (Eq8 (Const8 [c]) (Const8 [d]))
+	// cond:
+	// result: (ConstBool [b2i(c == d)])
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst8 {
+			break
+		}
+		c := v_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst8 {
+			break
+		}
+		d := v_1.AuxInt
+		v.reset(OpConstBool)
+		v.AuxInt = b2i(c == d)
+		return true
+	}
+	// match: (Eq8 (Const8 [d]) (Const8 [c]))
+	// cond:
+	// result: (ConstBool [b2i(c == d)])
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst8 {
+			break
+		}
+		d := v_0.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst8 {
+			break
+		}
+		c := v_1.AuxInt
+		v.reset(OpConstBool)
+		v.AuxInt = b2i(c == d)
+		return true
+	}
+	// match: (Eq8 (Mod8u x (Const8 [c])) (Const8 [0]))
+	// cond: x.Op != OpConst8 && udivisibleOK(8,c) && !hasSmallRotate(config)
+	// result: (Eq32 (Mod32u <typ.UInt32> (ZeroExt8to32 <typ.UInt32> x) (Const32 <typ.UInt32> [c&0xff])) (Const32 <typ.UInt32> [0]))
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMod8u {
+			break
+		}
+		_ = v_0.Args[1]
+		x := v_0.Args[0]
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst8 {
+			break
+		}
+		c := v_0_1.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst8 {
+			break
+		}
+		if v_1.AuxInt != 0 {
+			break
+		}
+		if !(x.Op != OpConst8 && udivisibleOK(8, c) && !hasSmallRotate(config)) {
+			break
+		}
+		v.reset(OpEq32)
+		v0 := b.NewValue0(v.Pos, OpMod32u, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v2.AuxInt = c & 0xff
+		v0.AddArg(v2)
+		v.AddArg(v0)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = 0
+		v.AddArg(v3)
+		return true
+	}
+	// match: (Eq8 (Const8 [0]) (Mod8u x (Const8 [c])))
+	// cond: x.Op != OpConst8 && udivisibleOK(8,c) && !hasSmallRotate(config)
+	// result: (Eq32 (Mod32u <typ.UInt32> (ZeroExt8to32 <typ.UInt32> x) (Const32 <typ.UInt32> [c&0xff])) (Const32 <typ.UInt32> [0]))
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst8 {
+			break
+		}
+		if v_0.AuxInt != 0 {
+			break
+		}
+		v_1 := v.Args[1]
+		if v_1.Op != OpMod8u {
+			break
+		}
+		_ = v_1.Args[1]
+		x := v_1.Args[0]
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst8 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(x.Op != OpConst8 && udivisibleOK(8, c) && !hasSmallRotate(config)) {
+			break
+		}
+		v.reset(OpEq32)
+		v0 := b.NewValue0(v.Pos, OpMod32u, typ.UInt32)
+		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v2.AuxInt = c & 0xff
+		v0.AddArg(v2)
+		v.AddArg(v0)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
+		v3.AuxInt = 0
+		v.AddArg(v3)
+		return true
+	}
+	// match: (Eq8 (Mod8 x (Const8 [c])) (Const8 [0]))
+	// cond: x.Op != OpConst8 && sdivisibleOK(8,c) && !hasSmallRotate(config)
+	// result: (Eq32 (Mod32 <typ.Int32> (SignExt8to32 <typ.Int32> x) (Const32 <typ.Int32> [c])) (Const32 <typ.Int32> [0]))
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMod8 {
+			break
+		}
+		_ = v_0.Args[1]
+		x := v_0.Args[0]
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst8 {
+			break
+		}
+		c := v_0_1.AuxInt
+		v_1 := v.Args[1]
+		if v_1.Op != OpConst8 {
+			break
+		}
+		if v_1.AuxInt != 0 {
+			break
+		}
+		if !(x.Op != OpConst8 && sdivisibleOK(8, c) && !hasSmallRotate(config)) {
+			break
+		}
+		v.reset(OpEq32)
+		v0 := b.NewValue0(v.Pos, OpMod32, typ.Int32)
+		v1 := b.NewValue0(v.Pos, OpSignExt8to32, typ.Int32)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.Int32)
+		v2.AuxInt = c
+		v0.AddArg(v2)
+		v.AddArg(v0)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.Int32)
+		v3.AuxInt = 0
+		v.AddArg(v3)
+		return true
+	}
+	return false
+}
+func rewriteValuegeneric_OpEq8_10(v *Value) bool {
+	b := v.Block
+	config := b.Func.Config
+	typ := &b.Func.Config.Types
+	// match: (Eq8 (Const8 [0]) (Mod8 x (Const8 [c])))
+	// cond: x.Op != OpConst8 && sdivisibleOK(8,c) && !hasSmallRotate(config)
+	// result: (Eq32 (Mod32 <typ.Int32> (SignExt8to32 <typ.Int32> x) (Const32 <typ.Int32> [c])) (Const32 <typ.Int32> [0]))
+	for {
+		_ = v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpConst8 {
+			break
+		}
+		if v_0.AuxInt != 0 {
+			break
+		}
+		v_1 := v.Args[1]
+		if v_1.Op != OpMod8 {
+			break
+		}
+		_ = v_1.Args[1]
+		x := v_1.Args[0]
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst8 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(x.Op != OpConst8 && sdivisibleOK(8, c) && !hasSmallRotate(config)) {
+			break
+		}
+		v.reset(OpEq32)
+		v0 := b.NewValue0(v.Pos, OpMod32, typ.Int32)
+		v1 := b.NewValue0(v.Pos, OpSignExt8to32, typ.Int32)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v2 := b.NewValue0(v.Pos, OpConst32, typ.Int32)
+		v2.AuxInt = c
+		v0.AddArg(v2)
+		v.AddArg(v0)
+		v3 := b.NewValue0(v.Pos, OpConst32, typ.Int32)
+		v3.AuxInt = 0
+		v.AddArg(v3)
+		return true
+	}
+	// match: (Eq8 x (Mul8 (Const8 [c]) (Trunc32to8 (Rsh32Ux64 mul:(Mul32 (Const32 [m]) (ZeroExt8to32 x)) (Const64 [s])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8,c).m) && s == 8+umagic(8,c).s && x.Op != OpConst8 && udivisibleOK(8,c)
+	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(8-udivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).max))]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul8 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst8 {
+			break
+		}
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpTrunc32to8 {
+			break
+		}
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh32Ux64 {
+			break
+		}
+		_ = v_1_1_0.Args[1]
+		mul := v_1_1_0.Args[0]
+		if mul.Op != OpMul32 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst32 {
+			break
+		}
+		m := mul_0.AuxInt
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpZeroExt8to32 {
+			break
+		}
+		if x != mul_1.Args[0] {
+			break
+		}
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8, c).m) && s == 8+umagic(8, c).s && x.Op != OpConst8 && udivisibleOK(8, c)) {
+			break
+		}
+		v.reset(OpLeq8U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft8, typ.UInt8)
+		v1 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
+		v2 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v2.AuxInt = int64(int8(udivisible(8, c).m))
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v3.AuxInt = int64(8 - udivisible(8, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v4.AuxInt = int64(int8(udivisible(8, c).max))
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq8 x (Mul8 (Const8 [c]) (Trunc32to8 (Rsh32Ux64 mul:(Mul32 (ZeroExt8to32 x) (Const32 [m])) (Const64 [s])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8,c).m) && s == 8+umagic(8,c).s && x.Op != OpConst8 && udivisibleOK(8,c)
+	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(8-udivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).max))]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul8 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpConst8 {
+			break
+		}
+		c := v_1_0.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpTrunc32to8 {
+			break
+		}
+		v_1_1_0 := v_1_1.Args[0]
+		if v_1_1_0.Op != OpRsh32Ux64 {
+			break
+		}
+		_ = v_1_1_0.Args[1]
+		mul := v_1_1_0.Args[0]
+		if mul.Op != OpMul32 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpZeroExt8to32 {
+			break
+		}
+		if x != mul_0.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst32 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_1_1_0_1 := v_1_1_0.Args[1]
+		if v_1_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_1_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8, c).m) && s == 8+umagic(8, c).s && x.Op != OpConst8 && udivisibleOK(8, c)) {
+			break
+		}
+		v.reset(OpLeq8U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft8, typ.UInt8)
+		v1 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
+		v2 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v2.AuxInt = int64(int8(udivisible(8, c).m))
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v3.AuxInt = int64(8 - udivisible(8, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v4.AuxInt = int64(int8(udivisible(8, c).max))
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq8 x (Mul8 (Trunc32to8 (Rsh32Ux64 mul:(Mul32 (Const32 [m]) (ZeroExt8to32 x)) (Const64 [s]))) (Const8 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8,c).m) && s == 8+umagic(8,c).s && x.Op != OpConst8 && udivisibleOK(8,c)
+	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(8-udivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).max))]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul8 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpTrunc32to8 {
+			break
+		}
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh32Ux64 {
+			break
+		}
+		_ = v_1_0_0.Args[1]
+		mul := v_1_0_0.Args[0]
+		if mul.Op != OpMul32 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst32 {
+			break
+		}
+		m := mul_0.AuxInt
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpZeroExt8to32 {
+			break
+		}
+		if x != mul_1.Args[0] {
+			break
+		}
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst8 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8, c).m) && s == 8+umagic(8, c).s && x.Op != OpConst8 && udivisibleOK(8, c)) {
+			break
+		}
+		v.reset(OpLeq8U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft8, typ.UInt8)
+		v1 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
+		v2 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v2.AuxInt = int64(int8(udivisible(8, c).m))
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v3.AuxInt = int64(8 - udivisible(8, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v4.AuxInt = int64(int8(udivisible(8, c).max))
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq8 x (Mul8 (Trunc32to8 (Rsh32Ux64 mul:(Mul32 (ZeroExt8to32 x) (Const32 [m])) (Const64 [s]))) (Const8 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8,c).m) && s == 8+umagic(8,c).s && x.Op != OpConst8 && udivisibleOK(8,c)
+	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(8-udivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).max))]) )
+	for {
+		_ = v.Args[1]
+		x := v.Args[0]
+		v_1 := v.Args[1]
+		if v_1.Op != OpMul8 {
+			break
+		}
+		_ = v_1.Args[1]
+		v_1_0 := v_1.Args[0]
+		if v_1_0.Op != OpTrunc32to8 {
+			break
+		}
+		v_1_0_0 := v_1_0.Args[0]
+		if v_1_0_0.Op != OpRsh32Ux64 {
+			break
+		}
+		_ = v_1_0_0.Args[1]
+		mul := v_1_0_0.Args[0]
+		if mul.Op != OpMul32 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpZeroExt8to32 {
+			break
+		}
+		if x != mul_0.Args[0] {
+			break
+		}
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst32 {
+			break
+		}
+		m := mul_1.AuxInt
+		v_1_0_0_1 := v_1_0_0.Args[1]
+		if v_1_0_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_1_0_0_1.AuxInt
+		v_1_1 := v_1.Args[1]
+		if v_1_1.Op != OpConst8 {
+			break
+		}
+		c := v_1_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8, c).m) && s == 8+umagic(8, c).s && x.Op != OpConst8 && udivisibleOK(8, c)) {
+			break
+		}
+		v.reset(OpLeq8U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft8, typ.UInt8)
+		v1 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
+		v2 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v2.AuxInt = int64(int8(udivisible(8, c).m))
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v3.AuxInt = int64(8 - udivisible(8, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v4.AuxInt = int64(int8(udivisible(8, c).max))
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq8 (Mul8 (Const8 [c]) (Trunc32to8 (Rsh32Ux64 mul:(Mul32 (Const32 [m]) (ZeroExt8to32 x)) (Const64 [s])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8,c).m) && s == 8+umagic(8,c).s && x.Op != OpConst8 && udivisibleOK(8,c)
+	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(8-udivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).max))]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul8 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst8 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpTrunc32to8 {
+			break
+		}
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh32Ux64 {
+			break
+		}
+		_ = v_0_1_0.Args[1]
+		mul := v_0_1_0.Args[0]
+		if mul.Op != OpMul32 {
+			break
+		}
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst32 {
+			break
+		}
+		m := mul_0.AuxInt
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpZeroExt8to32 {
+			break
+		}
+		if x != mul_1.Args[0] {
+			break
+		}
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8, c).m) && s == 8+umagic(8, c).s && x.Op != OpConst8 && udivisibleOK(8, c)) {
+			break
+		}
+		v.reset(OpLeq8U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft8, typ.UInt8)
+		v1 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
+		v2 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v2.AuxInt = int64(int8(udivisible(8, c).m))
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v3.AuxInt = int64(8 - udivisible(8, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v4.AuxInt = int64(int8(udivisible(8, c).max))
+		v.AddArg(v4)
+		return true
+	}
+	// match: (Eq8 (Mul8 (Const8 [c]) (Trunc32to8 (Rsh32Ux64 mul:(Mul32 (ZeroExt8to32 x) (Const32 [m])) (Const64 [s])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8,c).m) && s == 8+umagic(8,c).s && x.Op != OpConst8 && udivisibleOK(8,c)
+	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(8-udivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).max))]) )
+	for {
+		x := v.Args[1]
+		v_0 := v.Args[0]
+		if v_0.Op != OpMul8 {
+			break
+		}
+		_ = v_0.Args[1]
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpConst8 {
+			break
+		}
+		c := v_0_0.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpTrunc32to8 {
+			break
+		}
+		v_0_1_0 := v_0_1.Args[0]
+		if v_0_1_0.Op != OpRsh32Ux64 {
+			break
+		}
+		_ = v_0_1_0.Args[1]
+		mul := v_0_1_0.Args[0]
+		if mul.Op != OpMul32 {
 			break
 		}
-		x := v_0.Args[1]
-		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpConst8 {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpZeroExt8to32 {
 			break
 		}
-		t := v_0_0.Type
-		d := v_0_0.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst8 {
+		if x != mul_0.Args[0] {
 			break
 		}
-		if v_1.Type != t {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst32 {
 			break
 		}
-		c := v_1.AuxInt
-		v.reset(OpEq8)
-		v0 := b.NewValue0(v.Pos, OpConst8, t)
-		v0.AuxInt = int64(int8(c - d))
+		m := mul_1.AuxInt
+		v_0_1_0_1 := v_0_1_0.Args[1]
+		if v_0_1_0_1.Op != OpConst64 {
+			break
+		}
+		s := v_0_1_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8, c).m) && s == 8+umagic(8, c).s && x.Op != OpConst8 && udivisibleOK(8, c)) {
+			break
+		}
+		v.reset(OpLeq8U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft8, typ.UInt8)
+		v1 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
+		v2 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v2.AuxInt = int64(int8(udivisible(8, c).m))
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v3.AuxInt = int64(8 - udivisible(8, c).k)
+		v0.AddArg(v3)
 		v.AddArg(v0)
-		v.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v4.AuxInt = int64(int8(udivisible(8, c).max))
+		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq8 (Add8 x (Const8 <t> [d])) (Const8 <t> [c]))
-	// cond:
-	// result: (Eq8 (Const8 <t> [int64(int8(c-d))]) x)
+	// match: (Eq8 (Mul8 (Trunc32to8 (Rsh32Ux64 mul:(Mul32 (Const32 [m]) (ZeroExt8to32 x)) (Const64 [s]))) (Const8 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8,c).m) && s == 8+umagic(8,c).s && x.Op != OpConst8 && udivisibleOK(8,c)
+	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(8-udivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).max))]) )
 	for {
-		_ = v.Args[1]
+		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpAdd8 {
+		if v_0.Op != OpMul8 {
 			break
 		}
 		_ = v_0.Args[1]
-		x := v_0.Args[0]
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst8 {
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpTrunc32to8 {
 			break
 		}
-		t := v_0_1.Type
-		d := v_0_1.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst8 {
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh32Ux64 {
 			break
 		}
-		if v_1.Type != t {
+		_ = v_0_0_0.Args[1]
+		mul := v_0_0_0.Args[0]
+		if mul.Op != OpMul32 {
 			break
 		}
-		c := v_1.AuxInt
-		v.reset(OpEq8)
-		v0 := b.NewValue0(v.Pos, OpConst8, t)
-		v0.AuxInt = int64(int8(c - d))
-		v.AddArg(v0)
-		v.AddArg(x)
-		return true
-	}
-	// match: (Eq8 (Const8 [c]) (Const8 [d]))
-	// cond:
-	// result: (ConstBool [b2i(c == d)])
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst8 {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpConst32 {
 			break
 		}
-		c := v_0.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst8 {
+		m := mul_0.AuxInt
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpZeroExt8to32 {
 			break
 		}
-		d := v_1.AuxInt
-		v.reset(OpConstBool)
-		v.AuxInt = b2i(c == d)
-		return true
-	}
-	// match: (Eq8 (Const8 [d]) (Const8 [c]))
-	// cond:
-	// result: (ConstBool [b2i(c == d)])
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst8 {
+		if x != mul_1.Args[0] {
 			break
 		}
-		d := v_0.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst8 {
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		c := v_1.AuxInt
-		v.reset(OpConstBool)
-		v.AuxInt = b2i(c == d)
+		s := v_0_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst8 {
+			break
+		}
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8, c).m) && s == 8+umagic(8, c).s && x.Op != OpConst8 && udivisibleOK(8, c)) {
+			break
+		}
+		v.reset(OpLeq8U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft8, typ.UInt8)
+		v1 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
+		v2 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v2.AuxInt = int64(int8(udivisible(8, c).m))
+		v1.AddArg(v2)
+		v1.AddArg(x)
+		v0.AddArg(v1)
+		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v3.AuxInt = int64(8 - udivisible(8, c).k)
+		v0.AddArg(v3)
+		v.AddArg(v0)
+		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v4.AuxInt = int64(int8(udivisible(8, c).max))
+		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq8 (Mod8u x (Const8 [c])) (Const8 [0]))
-	// cond: x.Op != OpConst8 && udivisibleOK(8,c) && !hasSmallRotate(config)
-	// result: (Eq32 (Mod32u <typ.UInt32> (ZeroExt8to32 <typ.UInt32> x) (Const32 <typ.UInt32> [c&0xff])) (Const32 <typ.UInt32> [0]))
+	// match: (Eq8 (Mul8 (Trunc32to8 (Rsh32Ux64 mul:(Mul32 (ZeroExt8to32 x) (Const32 [m])) (Const64 [s]))) (Const8 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8,c).m) && s == 8+umagic(8,c).s && x.Op != OpConst8 && udivisibleOK(8,c)
+	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(8-udivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).max))]) )
 	for {
-		_ = v.Args[1]
+		x := v.Args[1]
 		v_0 := v.Args[0]
-		if v_0.Op != OpMod8u {
+		if v_0.Op != OpMul8 {
 			break
 		}
 		_ = v_0.Args[1]
-		x := v_0.Args[0]
-		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpConst8 {
+		v_0_0 := v_0.Args[0]
+		if v_0_0.Op != OpTrunc32to8 {
 			break
 		}
-		c := v_0_1.AuxInt
-		v_1 := v.Args[1]
-		if v_1.Op != OpConst8 {
+		v_0_0_0 := v_0_0.Args[0]
+		if v_0_0_0.Op != OpRsh32Ux64 {
 			break
 		}
-		if v_1.AuxInt != 0 {
+		_ = v_0_0_0.Args[1]
+		mul := v_0_0_0.Args[0]
+		if mul.Op != OpMul32 {
 			break
 		}
-		if !(x.Op != OpConst8 && udivisibleOK(8, c) && !hasSmallRotate(config)) {
+		_ = mul.Args[1]
+		mul_0 := mul.Args[0]
+		if mul_0.Op != OpZeroExt8to32 {
 			break
 		}
-		v.reset(OpEq32)
-		v0 := b.NewValue0(v.Pos, OpMod32u, typ.UInt32)
-		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
-		v1.AddArg(x)
-		v0.AddArg(v1)
-		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v2.AuxInt = c & 0xff
-		v0.AddArg(v2)
-		v.AddArg(v0)
-		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v3.AuxInt = 0
-		v.AddArg(v3)
-		return true
-	}
-	// match: (Eq8 (Const8 [0]) (Mod8u x (Const8 [c])))
-	// cond: x.Op != OpConst8 && udivisibleOK(8,c) && !hasSmallRotate(config)
-	// result: (Eq32 (Mod32u <typ.UInt32> (ZeroExt8to32 <typ.UInt32> x) (Const32 <typ.UInt32> [c&0xff])) (Const32 <typ.UInt32> [0]))
-	for {
-		_ = v.Args[1]
-		v_0 := v.Args[0]
-		if v_0.Op != OpConst8 {
+		if x != mul_0.Args[0] {
 			break
 		}
-		if v_0.AuxInt != 0 {
+		mul_1 := mul.Args[1]
+		if mul_1.Op != OpConst32 {
 			break
 		}
-		v_1 := v.Args[1]
-		if v_1.Op != OpMod8u {
+		m := mul_1.AuxInt
+		v_0_0_0_1 := v_0_0_0.Args[1]
+		if v_0_0_0_1.Op != OpConst64 {
 			break
 		}
-		_ = v_1.Args[1]
-		x := v_1.Args[0]
-		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpConst8 {
+		s := v_0_0_0_1.AuxInt
+		v_0_1 := v_0.Args[1]
+		if v_0_1.Op != OpConst8 {
 			break
 		}
-		c := v_1_1.AuxInt
-		if !(x.Op != OpConst8 && udivisibleOK(8, c) && !hasSmallRotate(config)) {
+		c := v_0_1.AuxInt
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8, c).m) && s == 8+umagic(8, c).s && x.Op != OpConst8 && udivisibleOK(8, c)) {
 			break
 		}
-		v.reset(OpEq32)
-		v0 := b.NewValue0(v.Pos, OpMod32u, typ.UInt32)
-		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
+		v.reset(OpLeq8U)
+		v0 := b.NewValue0(v.Pos, OpRotateLeft8, typ.UInt8)
+		v1 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
+		v2 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v2.AuxInt = int64(int8(udivisible(8, c).m))
+		v1.AddArg(v2)
 		v1.AddArg(x)
 		v0.AddArg(v1)
-		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v2.AuxInt = c & 0xff
-		v0.AddArg(v2)
+		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v3.AuxInt = int64(8 - udivisible(8, c).k)
+		v0.AddArg(v3)
 		v.AddArg(v0)
-		v3 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
-		v3.AuxInt = 0
-		v.AddArg(v3)
+		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v4.AuxInt = int64(int8(udivisible(8, c).max))
+		v.AddArg(v4)
 		return true
 	}
-	// match: (Eq8 x (Mul8 (Const8 [c]) (Trunc32to8 (Rsh32Ux64 mul:(Mul32 (Const32 [m]) (ZeroExt8to32 x)) (Const64 [s])))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8,c).m) && s == 8+umagic(8,c).s && x.Op != OpConst8 && udivisibleOK(8,c)
-	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(8-udivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).max))]) )
+	// match: (Eq8 x (Mul8 (Const8 [c]) (Sub8 (Rsh32x64 mul:(Mul32 (Const32 [m]) (SignExt8to32 x)) (Const64 [s])) (Rsh32x64 (SignExt8to32 x) (Const64 [31])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(8,c).m) && s == 8+smagic(8,c).s && x.Op != OpConst8 && sdivisibleOK(8,c)
+	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Add8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).a))]) ) (Const8 <typ.UInt8> [int64(8-sdivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).max))]) )
 	for {
 		_ = v.Args[1]
 		x := v.Args[0]
@@ -18569,11 +25031,12 @@ func rewriteValuegeneric_OpEq8_0(v *Value) bool {
 		}
 		c := v_1_0.AuxInt
 		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpTrunc32to8 {
+		if v_1_1.Op != OpSub8 {
 			break
 		}
+		_ = v_1_1.Args[1]
 		v_1_1_0 := v_1_1.Args[0]
-		if v_1_1_0.Op != OpRsh32Ux64 {
+		if v_1_1_0.Op != OpRsh32x64 {
 			break
 		}
 		_ = v_1_1_0.Args[1]
@@ -18588,7 +25051,7 @@ func rewriteValuegeneric_OpEq8_0(v *Value) bool {
 		}
 		m := mul_0.AuxInt
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpZeroExt8to32 {
+		if mul_1.Op != OpSignExt8to32 {
 			break
 		}
 		if x != mul_1.Args[0] {
@@ -18599,34 +25062,58 @@ func rewriteValuegeneric_OpEq8_0(v *Value) bool {
 			break
 		}
 		s := v_1_1_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8, c).m) && s == 8+umagic(8, c).s && x.Op != OpConst8 && udivisibleOK(8, c)) {
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_1_1_1.Args[1]
+		v_1_1_1_0 := v_1_1_1.Args[0]
+		if v_1_1_1_0.Op != OpSignExt8to32 {
+			break
+		}
+		if x != v_1_1_1_0.Args[0] {
+			break
+		}
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1_1_1.AuxInt != 31 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(8, c).m) && s == 8+smagic(8, c).s && x.Op != OpConst8 && sdivisibleOK(8, c)) {
 			break
 		}
 		v.reset(OpLeq8U)
 		v0 := b.NewValue0(v.Pos, OpRotateLeft8, typ.UInt8)
-		v1 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
-		v2 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v2.AuxInt = int64(int8(udivisible(8, c).m))
+		v1 := b.NewValue0(v.Pos, OpAdd8, typ.UInt8)
+		v2 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
+		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v3.AuxInt = int64(int8(sdivisible(8, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v4.AuxInt = int64(int8(sdivisible(8, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v3.AuxInt = int64(8 - udivisible(8, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v5.AuxInt = int64(8 - sdivisible(8, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v4.AuxInt = int64(int8(udivisible(8, c).max))
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v6.AuxInt = int64(int8(sdivisible(8, c).max))
+		v.AddArg(v6)
 		return true
 	}
 	return false
 }
-func rewriteValuegeneric_OpEq8_10(v *Value) bool {
+func rewriteValuegeneric_OpEq8_20(v *Value) bool {
 	b := v.Block
 	typ := &b.Func.Config.Types
-	// match: (Eq8 x (Mul8 (Const8 [c]) (Trunc32to8 (Rsh32Ux64 mul:(Mul32 (ZeroExt8to32 x) (Const32 [m])) (Const64 [s])))))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8,c).m) && s == 8+umagic(8,c).s && x.Op != OpConst8 && udivisibleOK(8,c)
-	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(8-udivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).max))]) )
+	// match: (Eq8 x (Mul8 (Const8 [c]) (Sub8 (Rsh32x64 mul:(Mul32 (SignExt8to32 x) (Const32 [m])) (Const64 [s])) (Rsh32x64 (SignExt8to32 x) (Const64 [31])))))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(8,c).m) && s == 8+smagic(8,c).s && x.Op != OpConst8 && sdivisibleOK(8,c)
+	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Add8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).a))]) ) (Const8 <typ.UInt8> [int64(8-sdivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).max))]) )
 	for {
 		_ = v.Args[1]
 		x := v.Args[0]
@@ -18641,11 +25128,12 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 		}
 		c := v_1_0.AuxInt
 		v_1_1 := v_1.Args[1]
-		if v_1_1.Op != OpTrunc32to8 {
+		if v_1_1.Op != OpSub8 {
 			break
 		}
+		_ = v_1_1.Args[1]
 		v_1_1_0 := v_1_1.Args[0]
-		if v_1_1_0.Op != OpRsh32Ux64 {
+		if v_1_1_0.Op != OpRsh32x64 {
 			break
 		}
 		_ = v_1_1_0.Args[1]
@@ -18655,7 +25143,7 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpZeroExt8to32 {
+		if mul_0.Op != OpSignExt8to32 {
 			break
 		}
 		if x != mul_0.Args[0] {
@@ -18671,29 +25159,53 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 			break
 		}
 		s := v_1_1_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8, c).m) && s == 8+umagic(8, c).s && x.Op != OpConst8 && udivisibleOK(8, c)) {
+		v_1_1_1 := v_1_1.Args[1]
+		if v_1_1_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_1_1_1.Args[1]
+		v_1_1_1_0 := v_1_1_1.Args[0]
+		if v_1_1_1_0.Op != OpSignExt8to32 {
+			break
+		}
+		if x != v_1_1_1_0.Args[0] {
+			break
+		}
+		v_1_1_1_1 := v_1_1_1.Args[1]
+		if v_1_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_1_1_1.AuxInt != 31 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(8, c).m) && s == 8+smagic(8, c).s && x.Op != OpConst8 && sdivisibleOK(8, c)) {
 			break
 		}
 		v.reset(OpLeq8U)
 		v0 := b.NewValue0(v.Pos, OpRotateLeft8, typ.UInt8)
-		v1 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
-		v2 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v2.AuxInt = int64(int8(udivisible(8, c).m))
+		v1 := b.NewValue0(v.Pos, OpAdd8, typ.UInt8)
+		v2 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
+		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v3.AuxInt = int64(int8(sdivisible(8, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v4.AuxInt = int64(int8(sdivisible(8, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v3.AuxInt = int64(8 - udivisible(8, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v5.AuxInt = int64(8 - sdivisible(8, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v4.AuxInt = int64(int8(udivisible(8, c).max))
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v6.AuxInt = int64(int8(sdivisible(8, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq8 x (Mul8 (Trunc32to8 (Rsh32Ux64 mul:(Mul32 (Const32 [m]) (ZeroExt8to32 x)) (Const64 [s]))) (Const8 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8,c).m) && s == 8+umagic(8,c).s && x.Op != OpConst8 && udivisibleOK(8,c)
-	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(8-udivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).max))]) )
+	// match: (Eq8 x (Mul8 (Sub8 (Rsh32x64 mul:(Mul32 (Const32 [m]) (SignExt8to32 x)) (Const64 [s])) (Rsh32x64 (SignExt8to32 x) (Const64 [31]))) (Const8 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(8,c).m) && s == 8+smagic(8,c).s && x.Op != OpConst8 && sdivisibleOK(8,c)
+	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Add8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).a))]) ) (Const8 <typ.UInt8> [int64(8-sdivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).max))]) )
 	for {
 		_ = v.Args[1]
 		x := v.Args[0]
@@ -18703,11 +25215,12 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpTrunc32to8 {
+		if v_1_0.Op != OpSub8 {
 			break
 		}
+		_ = v_1_0.Args[1]
 		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpRsh32Ux64 {
+		if v_1_0_0.Op != OpRsh32x64 {
 			break
 		}
 		_ = v_1_0_0.Args[1]
@@ -18722,7 +25235,7 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 		}
 		m := mul_0.AuxInt
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpZeroExt8to32 {
+		if mul_1.Op != OpSignExt8to32 {
 			break
 		}
 		if x != mul_1.Args[0] {
@@ -18733,34 +25246,58 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 			break
 		}
 		s := v_1_0_0_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_1_0_1.Args[1]
+		v_1_0_1_0 := v_1_0_1.Args[0]
+		if v_1_0_1_0.Op != OpSignExt8to32 {
+			break
+		}
+		if x != v_1_0_1_0.Args[0] {
+			break
+		}
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1_1.AuxInt != 31 {
+			break
+		}
 		v_1_1 := v_1.Args[1]
 		if v_1_1.Op != OpConst8 {
 			break
 		}
 		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8, c).m) && s == 8+umagic(8, c).s && x.Op != OpConst8 && udivisibleOK(8, c)) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(8, c).m) && s == 8+smagic(8, c).s && x.Op != OpConst8 && sdivisibleOK(8, c)) {
 			break
 		}
 		v.reset(OpLeq8U)
 		v0 := b.NewValue0(v.Pos, OpRotateLeft8, typ.UInt8)
-		v1 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
-		v2 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v2.AuxInt = int64(int8(udivisible(8, c).m))
+		v1 := b.NewValue0(v.Pos, OpAdd8, typ.UInt8)
+		v2 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
+		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v3.AuxInt = int64(int8(sdivisible(8, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v4.AuxInt = int64(int8(sdivisible(8, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v3.AuxInt = int64(8 - udivisible(8, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v5.AuxInt = int64(8 - sdivisible(8, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v4.AuxInt = int64(int8(udivisible(8, c).max))
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v6.AuxInt = int64(int8(sdivisible(8, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq8 x (Mul8 (Trunc32to8 (Rsh32Ux64 mul:(Mul32 (ZeroExt8to32 x) (Const32 [m])) (Const64 [s]))) (Const8 [c])))
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8,c).m) && s == 8+umagic(8,c).s && x.Op != OpConst8 && udivisibleOK(8,c)
-	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(8-udivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).max))]) )
+	// match: (Eq8 x (Mul8 (Sub8 (Rsh32x64 mul:(Mul32 (SignExt8to32 x) (Const32 [m])) (Const64 [s])) (Rsh32x64 (SignExt8to32 x) (Const64 [31]))) (Const8 [c])))
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(8,c).m) && s == 8+smagic(8,c).s && x.Op != OpConst8 && sdivisibleOK(8,c)
+	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Add8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).a))]) ) (Const8 <typ.UInt8> [int64(8-sdivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).max))]) )
 	for {
 		_ = v.Args[1]
 		x := v.Args[0]
@@ -18770,11 +25307,12 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 		}
 		_ = v_1.Args[1]
 		v_1_0 := v_1.Args[0]
-		if v_1_0.Op != OpTrunc32to8 {
+		if v_1_0.Op != OpSub8 {
 			break
 		}
+		_ = v_1_0.Args[1]
 		v_1_0_0 := v_1_0.Args[0]
-		if v_1_0_0.Op != OpRsh32Ux64 {
+		if v_1_0_0.Op != OpRsh32x64 {
 			break
 		}
 		_ = v_1_0_0.Args[1]
@@ -18784,7 +25322,7 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpZeroExt8to32 {
+		if mul_0.Op != OpSignExt8to32 {
 			break
 		}
 		if x != mul_0.Args[0] {
@@ -18800,34 +25338,58 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 			break
 		}
 		s := v_1_0_0_1.AuxInt
+		v_1_0_1 := v_1_0.Args[1]
+		if v_1_0_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_1_0_1.Args[1]
+		v_1_0_1_0 := v_1_0_1.Args[0]
+		if v_1_0_1_0.Op != OpSignExt8to32 {
+			break
+		}
+		if x != v_1_0_1_0.Args[0] {
+			break
+		}
+		v_1_0_1_1 := v_1_0_1.Args[1]
+		if v_1_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_1_0_1_1.AuxInt != 31 {
+			break
+		}
 		v_1_1 := v_1.Args[1]
 		if v_1_1.Op != OpConst8 {
 			break
 		}
 		c := v_1_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8, c).m) && s == 8+umagic(8, c).s && x.Op != OpConst8 && udivisibleOK(8, c)) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(8, c).m) && s == 8+smagic(8, c).s && x.Op != OpConst8 && sdivisibleOK(8, c)) {
 			break
 		}
 		v.reset(OpLeq8U)
 		v0 := b.NewValue0(v.Pos, OpRotateLeft8, typ.UInt8)
-		v1 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
-		v2 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v2.AuxInt = int64(int8(udivisible(8, c).m))
+		v1 := b.NewValue0(v.Pos, OpAdd8, typ.UInt8)
+		v2 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
+		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v3.AuxInt = int64(int8(sdivisible(8, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v4.AuxInt = int64(int8(sdivisible(8, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v3.AuxInt = int64(8 - udivisible(8, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v5.AuxInt = int64(8 - sdivisible(8, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v4.AuxInt = int64(int8(udivisible(8, c).max))
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v6.AuxInt = int64(int8(sdivisible(8, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq8 (Mul8 (Const8 [c]) (Trunc32to8 (Rsh32Ux64 mul:(Mul32 (Const32 [m]) (ZeroExt8to32 x)) (Const64 [s])))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8,c).m) && s == 8+umagic(8,c).s && x.Op != OpConst8 && udivisibleOK(8,c)
-	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(8-udivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).max))]) )
+	// match: (Eq8 (Mul8 (Const8 [c]) (Sub8 (Rsh32x64 mul:(Mul32 (Const32 [m]) (SignExt8to32 x)) (Const64 [s])) (Rsh32x64 (SignExt8to32 x) (Const64 [31])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(8,c).m) && s == 8+smagic(8,c).s && x.Op != OpConst8 && sdivisibleOK(8,c)
+	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Add8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).a))]) ) (Const8 <typ.UInt8> [int64(8-sdivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).max))]) )
 	for {
 		x := v.Args[1]
 		v_0 := v.Args[0]
@@ -18841,11 +25403,12 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 		}
 		c := v_0_0.AuxInt
 		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpTrunc32to8 {
+		if v_0_1.Op != OpSub8 {
 			break
 		}
+		_ = v_0_1.Args[1]
 		v_0_1_0 := v_0_1.Args[0]
-		if v_0_1_0.Op != OpRsh32Ux64 {
+		if v_0_1_0.Op != OpRsh32x64 {
 			break
 		}
 		_ = v_0_1_0.Args[1]
@@ -18860,7 +25423,7 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 		}
 		m := mul_0.AuxInt
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpZeroExt8to32 {
+		if mul_1.Op != OpSignExt8to32 {
 			break
 		}
 		if x != mul_1.Args[0] {
@@ -18871,29 +25434,53 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 			break
 		}
 		s := v_0_1_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8, c).m) && s == 8+umagic(8, c).s && x.Op != OpConst8 && udivisibleOK(8, c)) {
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_1_1.Args[1]
+		v_0_1_1_0 := v_0_1_1.Args[0]
+		if v_0_1_1_0.Op != OpSignExt8to32 {
+			break
+		}
+		if x != v_0_1_1_0.Args[0] {
+			break
+		}
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 31 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(8, c).m) && s == 8+smagic(8, c).s && x.Op != OpConst8 && sdivisibleOK(8, c)) {
 			break
 		}
 		v.reset(OpLeq8U)
 		v0 := b.NewValue0(v.Pos, OpRotateLeft8, typ.UInt8)
-		v1 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
-		v2 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v2.AuxInt = int64(int8(udivisible(8, c).m))
+		v1 := b.NewValue0(v.Pos, OpAdd8, typ.UInt8)
+		v2 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
+		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v3.AuxInt = int64(int8(sdivisible(8, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v4.AuxInt = int64(int8(sdivisible(8, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v3.AuxInt = int64(8 - udivisible(8, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v5.AuxInt = int64(8 - sdivisible(8, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v4.AuxInt = int64(int8(udivisible(8, c).max))
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v6.AuxInt = int64(int8(sdivisible(8, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq8 (Mul8 (Const8 [c]) (Trunc32to8 (Rsh32Ux64 mul:(Mul32 (ZeroExt8to32 x) (Const32 [m])) (Const64 [s])))) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8,c).m) && s == 8+umagic(8,c).s && x.Op != OpConst8 && udivisibleOK(8,c)
-	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(8-udivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).max))]) )
+	// match: (Eq8 (Mul8 (Const8 [c]) (Sub8 (Rsh32x64 mul:(Mul32 (SignExt8to32 x) (Const32 [m])) (Const64 [s])) (Rsh32x64 (SignExt8to32 x) (Const64 [31])))) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(8,c).m) && s == 8+smagic(8,c).s && x.Op != OpConst8 && sdivisibleOK(8,c)
+	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Add8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).a))]) ) (Const8 <typ.UInt8> [int64(8-sdivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).max))]) )
 	for {
 		x := v.Args[1]
 		v_0 := v.Args[0]
@@ -18907,11 +25494,12 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 		}
 		c := v_0_0.AuxInt
 		v_0_1 := v_0.Args[1]
-		if v_0_1.Op != OpTrunc32to8 {
+		if v_0_1.Op != OpSub8 {
 			break
 		}
+		_ = v_0_1.Args[1]
 		v_0_1_0 := v_0_1.Args[0]
-		if v_0_1_0.Op != OpRsh32Ux64 {
+		if v_0_1_0.Op != OpRsh32x64 {
 			break
 		}
 		_ = v_0_1_0.Args[1]
@@ -18921,7 +25509,7 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpZeroExt8to32 {
+		if mul_0.Op != OpSignExt8to32 {
 			break
 		}
 		if x != mul_0.Args[0] {
@@ -18937,29 +25525,53 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 			break
 		}
 		s := v_0_1_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8, c).m) && s == 8+umagic(8, c).s && x.Op != OpConst8 && udivisibleOK(8, c)) {
+		v_0_1_1 := v_0_1.Args[1]
+		if v_0_1_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_1_1.Args[1]
+		v_0_1_1_0 := v_0_1_1.Args[0]
+		if v_0_1_1_0.Op != OpSignExt8to32 {
+			break
+		}
+		if x != v_0_1_1_0.Args[0] {
+			break
+		}
+		v_0_1_1_1 := v_0_1_1.Args[1]
+		if v_0_1_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_1_1_1.AuxInt != 31 {
+			break
+		}
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(8, c).m) && s == 8+smagic(8, c).s && x.Op != OpConst8 && sdivisibleOK(8, c)) {
 			break
 		}
 		v.reset(OpLeq8U)
 		v0 := b.NewValue0(v.Pos, OpRotateLeft8, typ.UInt8)
-		v1 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
-		v2 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v2.AuxInt = int64(int8(udivisible(8, c).m))
+		v1 := b.NewValue0(v.Pos, OpAdd8, typ.UInt8)
+		v2 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
+		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v3.AuxInt = int64(int8(sdivisible(8, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v4.AuxInt = int64(int8(sdivisible(8, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v3.AuxInt = int64(8 - udivisible(8, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v5.AuxInt = int64(8 - sdivisible(8, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v4.AuxInt = int64(int8(udivisible(8, c).max))
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v6.AuxInt = int64(int8(sdivisible(8, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq8 (Mul8 (Trunc32to8 (Rsh32Ux64 mul:(Mul32 (Const32 [m]) (ZeroExt8to32 x)) (Const64 [s]))) (Const8 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8,c).m) && s == 8+umagic(8,c).s && x.Op != OpConst8 && udivisibleOK(8,c)
-	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(8-udivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).max))]) )
+	// match: (Eq8 (Mul8 (Sub8 (Rsh32x64 mul:(Mul32 (Const32 [m]) (SignExt8to32 x)) (Const64 [s])) (Rsh32x64 (SignExt8to32 x) (Const64 [31]))) (Const8 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(8,c).m) && s == 8+smagic(8,c).s && x.Op != OpConst8 && sdivisibleOK(8,c)
+	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Add8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).a))]) ) (Const8 <typ.UInt8> [int64(8-sdivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).max))]) )
 	for {
 		x := v.Args[1]
 		v_0 := v.Args[0]
@@ -18968,11 +25580,12 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 		}
 		_ = v_0.Args[1]
 		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpTrunc32to8 {
+		if v_0_0.Op != OpSub8 {
 			break
 		}
+		_ = v_0_0.Args[1]
 		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpRsh32Ux64 {
+		if v_0_0_0.Op != OpRsh32x64 {
 			break
 		}
 		_ = v_0_0_0.Args[1]
@@ -18987,7 +25600,7 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 		}
 		m := mul_0.AuxInt
 		mul_1 := mul.Args[1]
-		if mul_1.Op != OpZeroExt8to32 {
+		if mul_1.Op != OpSignExt8to32 {
 			break
 		}
 		if x != mul_1.Args[0] {
@@ -18998,34 +25611,58 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 			break
 		}
 		s := v_0_0_0_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_0_1.Args[1]
+		v_0_0_1_0 := v_0_0_1.Args[0]
+		if v_0_0_1_0.Op != OpSignExt8to32 {
+			break
+		}
+		if x != v_0_0_1_0.Args[0] {
+			break
+		}
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1_1.AuxInt != 31 {
+			break
+		}
 		v_0_1 := v_0.Args[1]
 		if v_0_1.Op != OpConst8 {
 			break
 		}
 		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8, c).m) && s == 8+umagic(8, c).s && x.Op != OpConst8 && udivisibleOK(8, c)) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(8, c).m) && s == 8+smagic(8, c).s && x.Op != OpConst8 && sdivisibleOK(8, c)) {
 			break
 		}
 		v.reset(OpLeq8U)
 		v0 := b.NewValue0(v.Pos, OpRotateLeft8, typ.UInt8)
-		v1 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
-		v2 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v2.AuxInt = int64(int8(udivisible(8, c).m))
+		v1 := b.NewValue0(v.Pos, OpAdd8, typ.UInt8)
+		v2 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
+		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v3.AuxInt = int64(int8(sdivisible(8, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v4.AuxInt = int64(int8(sdivisible(8, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v3.AuxInt = int64(8 - udivisible(8, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v5.AuxInt = int64(8 - sdivisible(8, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v4.AuxInt = int64(int8(udivisible(8, c).max))
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v6.AuxInt = int64(int8(sdivisible(8, c).max))
+		v.AddArg(v6)
 		return true
 	}
-	// match: (Eq8 (Mul8 (Trunc32to8 (Rsh32Ux64 mul:(Mul32 (ZeroExt8to32 x) (Const32 [m])) (Const64 [s]))) (Const8 [c])) x)
-	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8,c).m) && s == 8+umagic(8,c).s && x.Op != OpConst8 && udivisibleOK(8,c)
-	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(8-udivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(udivisible(8,c).max))]) )
+	// match: (Eq8 (Mul8 (Sub8 (Rsh32x64 mul:(Mul32 (SignExt8to32 x) (Const32 [m])) (Const64 [s])) (Rsh32x64 (SignExt8to32 x) (Const64 [31]))) (Const8 [c])) x)
+	// cond: v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(8,c).m) && s == 8+smagic(8,c).s && x.Op != OpConst8 && sdivisibleOK(8,c)
+	// result: (Leq8U (RotateLeft8 <typ.UInt8> (Add8 <typ.UInt8> (Mul8 <typ.UInt8> (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).m))]) x) (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).a))]) ) (Const8 <typ.UInt8> [int64(8-sdivisible(8,c).k)]) ) (Const8 <typ.UInt8> [int64(int8(sdivisible(8,c).max))]) )
 	for {
 		x := v.Args[1]
 		v_0 := v.Args[0]
@@ -19034,11 +25671,12 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 		}
 		_ = v_0.Args[1]
 		v_0_0 := v_0.Args[0]
-		if v_0_0.Op != OpTrunc32to8 {
+		if v_0_0.Op != OpSub8 {
 			break
 		}
+		_ = v_0_0.Args[1]
 		v_0_0_0 := v_0_0.Args[0]
-		if v_0_0_0.Op != OpRsh32Ux64 {
+		if v_0_0_0.Op != OpRsh32x64 {
 			break
 		}
 		_ = v_0_0_0.Args[1]
@@ -19048,7 +25686,7 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 		}
 		_ = mul.Args[1]
 		mul_0 := mul.Args[0]
-		if mul_0.Op != OpZeroExt8to32 {
+		if mul_0.Op != OpSignExt8to32 {
 			break
 		}
 		if x != mul_0.Args[0] {
@@ -19064,29 +25702,53 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 			break
 		}
 		s := v_0_0_0_1.AuxInt
+		v_0_0_1 := v_0_0.Args[1]
+		if v_0_0_1.Op != OpRsh32x64 {
+			break
+		}
+		_ = v_0_0_1.Args[1]
+		v_0_0_1_0 := v_0_0_1.Args[0]
+		if v_0_0_1_0.Op != OpSignExt8to32 {
+			break
+		}
+		if x != v_0_0_1_0.Args[0] {
+			break
+		}
+		v_0_0_1_1 := v_0_0_1.Args[1]
+		if v_0_0_1_1.Op != OpConst64 {
+			break
+		}
+		if v_0_0_1_1.AuxInt != 31 {
+			break
+		}
 		v_0_1 := v_0.Args[1]
 		if v_0_1.Op != OpConst8 {
 			break
 		}
 		c := v_0_1.AuxInt
-		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(1<<8+umagic(8, c).m) && s == 8+umagic(8, c).s && x.Op != OpConst8 && udivisibleOK(8, c)) {
+		if !(v.Block.Func.pass.name != "opt" && mul.Uses == 1 && m == int64(smagic(8, c).m) && s == 8+smagic(8, c).s && x.Op != OpConst8 && sdivisibleOK(8, c)) {
 			break
 		}
 		v.reset(OpLeq8U)
 		v0 := b.NewValue0(v.Pos, OpRotateLeft8, typ.UInt8)
-		v1 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
-		v2 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v2.AuxInt = int64(int8(udivisible(8, c).m))
+		v1 := b.NewValue0(v.Pos, OpAdd8, typ.UInt8)
+		v2 := b.NewValue0(v.Pos, OpMul8, typ.UInt8)
+		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v3.AuxInt = int64(int8(sdivisible(8, c).m))
+		v2.AddArg(v3)
+		v2.AddArg(x)
 		v1.AddArg(v2)
-		v1.AddArg(x)
+		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v4.AuxInt = int64(int8(sdivisible(8, c).a))
+		v1.AddArg(v4)
 		v0.AddArg(v1)
-		v3 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v3.AuxInt = int64(8 - udivisible(8, c).k)
-		v0.AddArg(v3)
+		v5 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v5.AuxInt = int64(8 - sdivisible(8, c).k)
+		v0.AddArg(v5)
 		v.AddArg(v0)
-		v4 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
-		v4.AuxInt = int64(int8(udivisible(8, c).max))
-		v.AddArg(v4)
+		v6 := b.NewValue0(v.Pos, OpConst8, typ.UInt8)
+		v6.AuxInt = int64(int8(sdivisible(8, c).max))
+		v.AddArg(v6)
 		return true
 	}
 	// match: (Eq8 n (Lsh8x64 (Rsh8x64 (Add8 <t> n (Rsh8Ux64 <t> (Rsh8x64 <t> n (Const64 <typ.UInt64> [ 7])) (Const64 <typ.UInt64> [kbar]))) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])))
@@ -19375,7 +26037,7 @@ func rewriteValuegeneric_OpEq8_10(v *Value) bool {
 	}
 	return false
 }
-func rewriteValuegeneric_OpEq8_20(v *Value) bool {
+func rewriteValuegeneric_OpEq8_30(v *Value) bool {
 	b := v.Block
 	typ := &b.Func.Config.Types
 	// match: (Eq8 (Lsh8x64 (Rsh8x64 (Add8 <t> (Rsh8Ux64 <t> (Rsh8x64 <t> n (Const64 <typ.UInt64> [ 7])) (Const64 <typ.UInt64> [kbar])) n) (Const64 <typ.UInt64> [k])) (Const64 <typ.UInt64> [k])) n)
@@ -25308,7 +31970,7 @@ func rewriteValuegeneric_OpMod8u_0(v *Value) bool {
 		return true
 	}
 	// match: (Mod8u <t> x (Const8 [c]))
-	// cond: x.Op != OpConst8 && c > 0 && umagicOK(8,c)
+	// cond: x.Op != OpConst8 && c > 0 && umagicOK(8, c)
 	// result: (Sub8 x (Mul8 <t> (Div8u <t> x (Const8 <t> [c])) (Const8 <t> [c])))
 	for {
 		t := v.Type
diff --git a/test/codegen/arithmetic.go b/test/codegen/arithmetic.go
index 16158b2f4bc870ae1acf6fe725f8aae9c88abaaa..dcbc6d3f97655ff84c431491c6694ed08abb5408 100644
--- a/test/codegen/arithmetic.go
+++ b/test/codegen/arithmetic.go
@@ -216,14 +216,14 @@ func ConstMods(n1 uint, n2 int) (uint, int) {
 }
 
 // Check that divisibility checks x%c==0 are converted to MULs and rotates
-func Divisible(n uint) (even, odd bool) {
+func Divisible(n1 uint, n2 int) (bool, bool, bool, bool) {
 	// amd64:"MOVQ\t[$]-6148914691236517205","IMULQ","ROLQ\t[$]63",-"DIVQ"
 	// 386:"IMUL3L\t[$]-1431655765","ROLL\t[$]31",-"DIVQ"
 	// arm64:"MOVD\t[$]-6148914691236517205","MUL","ROR",-"DIV"
 	// arm:"MUL","CMP\t[$]715827882",-".*udiv"
 	// ppc64:"MULLD","ROTL\t[$]63"
 	// ppc64le:"MULLD","ROTL\t[$]63"
-	even = n%6 == 0
+	evenU := n1%6 == 0
 
 	// amd64:"MOVQ\t[$]-8737931403336103397","IMULQ",-"ROLQ",-"DIVQ"
 	// 386:"IMUL3L\t[$]678152731",-"ROLL",-"DIVQ"
@@ -231,8 +231,25 @@ func Divisible(n uint) (even, odd bool) {
 	// arm:"MUL","CMP\t[$]226050910",-".*udiv"
 	// ppc64:"MULLD",-"ROTL"
 	// ppc64le:"MULLD",-"ROTL"
-	odd = n%19 == 0
-	return
+	oddU := n1%19 == 0
+
+	// amd64:"IMULQ","ADD","ROLQ\t[$]63",-"DIVQ"
+	// 386:"IMUL3L\t[$]-1431655765","ADDL\t[$]715827882","ROLL\t[$]31",-"DIVQ"
+	// arm64:"MUL","ADD\t[$]3074457345618258602","ROR",-"DIV"
+	// arm:"MUL","ADD\t[$]715827882",-".*udiv"
+	// ppc64:"MULLD","ADD","ROTL\t[$]63"
+	// ppc64le:"MULLD","ADD","ROTL\t[$]63"
+	evenS := n2%6 == 0
+
+	// amd64:"IMULQ","ADD",-"ROLQ",-"DIVQ"
+	// 386:"IMUL3L\t[$]678152731","ADDL\t[$]113025455",-"ROLL",-"DIVQ"
+	// arm64:"MUL","ADD\t[$]485440633518672410",-"ROR",-"DIV"
+	// arm:"MUL","ADD\t[$]113025455",-".*udiv"
+	// ppc64:"MULLD","ADD",-"ROTL"
+	// ppc64le:"MULLD","ADD",-"ROTL"
+	oddS := n2%19 == 0
+
+	return evenU, oddU, evenS, oddS
 }
 
 // Check that fix-up code is not generated for divisions where it has been proven that