From d65c209b4b5bc99e7e5587817b79e0850cff32cb Mon Sep 17 00:00:00 2001
From: Xiaolin Zhao <zhaoxiaolin@loongson.cn>
Date: Tue, 6 May 2025 10:47:07 +0800
Subject: [PATCH] cmd/internal/obj/loong64: add [X]VF{ADD/SUB/MUL/DIV}.{S/D}
instructions
Go asm syntax:
V{ADD/SUB/MUL/DIV}{F/D} VK, VJ, VD
XV{ADD/SUB/MUL/DIV}{F/D} XK, XJ, XD
Equivalent platform assembler syntax:
vf{add/sub/mul/div}.{s/d} vd, vj, vk
xvf{add/sub/mul/div}.{s/d} xd, xj, xk
Change-Id: I4607884212167ac97d7b6448ea3c849fc0fdd506
Reviewed-on: https://go-review.googlesource.com/c/go/+/670255
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Carlos Amedee <carlos@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
---
.../asm/internal/asm/testdata/loong64enc1.s | 18 +++++++
src/cmd/internal/obj/loong64/a.out.go | 17 +++++++
src/cmd/internal/obj/loong64/anames.go | 16 +++++++
src/cmd/internal/obj/loong64/asm.go | 48 +++++++++++++++++++
4 files changed, 99 insertions(+)
diff --git a/src/cmd/asm/internal/asm/testdata/loong64enc1.s b/src/cmd/asm/internal/asm/testdata/loong64enc1.s
index a901da9b69d..3dfe89aab3f 100644
--- a/src/cmd/asm/internal/asm/testdata/loong64enc1.s
+++ b/src/cmd/asm/internal/asm/testdata/loong64enc1.s
@@ -986,3 +986,21 @@ lable2:
XVFRINTRMD X1, X2 // 22489d76
XVFRINTF X1, X2 // 22349d76
XVFRINTD X1, X2 // 22389d76
+
+ // [X]VF{ADD/SUB/MUL/DIV}.{S/D} instructions
+ VADDF V1, V2, V3 // 43843071
+ VADDD V1, V2, V3 // 43043171
+ VSUBF V1, V2, V3 // 43843271
+ VSUBD V1, V2, V3 // 43043371
+ VMULF V1, V2, V3 // 43843871
+ VMULD V1, V2, V3 // 43043971
+ VDIVF V1, V2, V3 // 43843a71
+ VDIVD V1, V2, V3 // 43043b71
+ XVADDF X1, X2, X3 // 43843075
+ XVADDD X1, X2, X3 // 43043175
+ XVSUBF X1, X2, X3 // 43843275
+ XVSUBD X1, X2, X3 // 43043375
+ XVMULF X1, X2, X3 // 43843875
+ XVMULD X1, X2, X3 // 43043975
+ XVDIVF X1, X2, X3 // 43843a75
+ XVDIVD X1, X2, X3 // 43043b75
diff --git a/src/cmd/internal/obj/loong64/a.out.go b/src/cmd/internal/obj/loong64/a.out.go
index 5e8210d5ddc..c88c556bfe9 100644
--- a/src/cmd/internal/obj/loong64/a.out.go
+++ b/src/cmd/internal/obj/loong64/a.out.go
@@ -950,6 +950,23 @@ const (
AXVFRSQRTF
AXVFRSQRTD
+ AVADDF
+ AVADDD
+ AVSUBF
+ AVSUBD
+ AVMULF
+ AVMULD
+ AVDIVF
+ AVDIVD
+ AXVADDF
+ AXVADDD
+ AXVSUBF
+ AXVSUBD
+ AXVMULF
+ AXVMULD
+ AXVDIVF
+ AXVDIVD
+
// LSX and LASX floating point conversion instructions
AVFRINTRNEF
AVFRINTRNED
diff --git a/src/cmd/internal/obj/loong64/anames.go b/src/cmd/internal/obj/loong64/anames.go
index 86110c217d2..533e5f41540 100644
--- a/src/cmd/internal/obj/loong64/anames.go
+++ b/src/cmd/internal/obj/loong64/anames.go
@@ -449,6 +449,22 @@ var Anames = []string{
"XVFRECIPD",
"XVFRSQRTF",
"XVFRSQRTD",
+ "VADDF",
+ "VADDD",
+ "VSUBF",
+ "VSUBD",
+ "VMULF",
+ "VMULD",
+ "VDIVF",
+ "VDIVD",
+ "XVADDF",
+ "XVADDD",
+ "XVSUBF",
+ "XVSUBD",
+ "XVMULF",
+ "XVMULD",
+ "XVDIVF",
+ "XVDIVD",
"VFRINTRNEF",
"VFRINTRNED",
"VFRINTRZF",
diff --git a/src/cmd/internal/obj/loong64/asm.go b/src/cmd/internal/obj/loong64/asm.go
index 1b46aa68a1f..dc9fafc0e2e 100644
--- a/src/cmd/internal/obj/loong64/asm.go
+++ b/src/cmd/internal/obj/loong64/asm.go
@@ -1610,6 +1610,14 @@ func buildop(ctxt *obj.Link) {
opset(AVMULWODWHUH, r0)
opset(AVMULWODVWUW, r0)
opset(AVMULWODQVUV, r0)
+ opset(AVADDF, r0)
+ opset(AVADDD, r0)
+ opset(AVSUBF, r0)
+ opset(AVSUBD, r0)
+ opset(AVMULF, r0)
+ opset(AVMULD, r0)
+ opset(AVDIVF, r0)
+ opset(AVDIVD, r0)
case AXVSEQB:
opset(AXVSEQH, r0)
@@ -1675,6 +1683,14 @@ func buildop(ctxt *obj.Link) {
opset(AXVMULWODWHUH, r0)
opset(AXVMULWODVWUW, r0)
opset(AXVMULWODQVUV, r0)
+ opset(AXVADDF, r0)
+ opset(AXVADDD, r0)
+ opset(AXVSUBF, r0)
+ opset(AXVSUBD, r0)
+ opset(AXVMULF, r0)
+ opset(AXVMULD, r0)
+ opset(AXVDIVF, r0)
+ opset(AXVDIVD, r0)
case AVANDB:
opset(AVORB, r0)
@@ -3387,6 +3403,38 @@ func (c *ctxt0) oprrr(a obj.As) uint32 {
return 0xe912 << 15 // xvmuh.wu
case AXVMUHVU:
return 0xe913 << 15 // xvmuh.du
+ case AVADDF:
+ return 0xe261 << 15 // vfadd.s
+ case AVADDD:
+ return 0xe262 << 15 // vfadd.d
+ case AVSUBF:
+ return 0xe265 << 15 // vfsub.s
+ case AVSUBD:
+ return 0xe266 << 15 // vfsub.d
+ case AVMULF:
+ return 0xe271 << 15 // vfmul.s
+ case AVMULD:
+ return 0xe272 << 15 // vfmul.d
+ case AVDIVF:
+ return 0xe275 << 15 // vfdiv.s
+ case AVDIVD:
+ return 0xe276 << 15 // vfdiv.d
+ case AXVADDF:
+ return 0xea61 << 15 // xvfadd.s
+ case AXVADDD:
+ return 0xea62 << 15 // xvfadd.d
+ case AXVSUBF:
+ return 0xea65 << 15 // xvfsub.s
+ case AXVSUBD:
+ return 0xea66 << 15 // xvfsub.d
+ case AXVMULF:
+ return 0xea71 << 15 // xvfmul.s
+ case AXVMULD:
+ return 0xea72 << 15 // xvfmul.d
+ case AXVDIVF:
+ return 0xea75 << 15 // xvfdiv.s
+ case AXVDIVD:
+ return 0xea76 << 15 // xvfdiv.d
}
if a < 0 {
--
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