From d13da63929df73ab506314f35524ebb9b0f8a216 Mon Sep 17 00:00:00 2001
From: Xiaolin Zhao <zhaoxiaolin@loongson.cn>
Date: Tue, 6 May 2025 10:10:30 +0800
Subject: [PATCH] cmd/internal/obj/loong64: add [X]VFRINT[{RNE/RZ/RP/RM}].{S/D}
instructions
Go asm syntax:
VFRINT[{RNE/RZ/RP/RM}]{F/D} VJ, VD
XVFRINT[{RNE/RZ/RP/RM}]{F/D} XJ, XD
Equivalent platform assembler syntax:
vfrint[{rne/rz/rp/rm}].{s/d} vd, vj
xvfrint[{rne/rz/rp/rm}].{s/d} xd, xj
Change-Id: I4ed8782289ae3329d675239f799d5f75b1adc4ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/670235
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
---
.../asm/internal/asm/testdata/loong64enc1.s | 22 +++++++
src/cmd/internal/obj/loong64/a.out.go | 22 +++++++
src/cmd/internal/obj/loong64/anames.go | 20 +++++++
src/cmd/internal/obj/loong64/asm.go | 60 +++++++++++++++++++
4 files changed, 124 insertions(+)
diff --git a/src/cmd/asm/internal/asm/testdata/loong64enc1.s b/src/cmd/asm/internal/asm/testdata/loong64enc1.s
index cfda9ba0b44..a901da9b69d 100644
--- a/src/cmd/asm/internal/asm/testdata/loong64enc1.s
+++ b/src/cmd/asm/internal/asm/testdata/loong64enc1.s
@@ -964,3 +964,25 @@ lable2:
XVSETALLNEH X1, FCC0 // 20b49c76
XVSETALLNEW X1, FCC0 // 20b89c76
XVSETALLNEV X1, FCC0 // 20bc9c76
+
+ // [X]VFRINT[{RNE/RZ/RP/RM}].{S/D} instructions
+ VFRINTRNEF V1, V2 // 22749d72
+ VFRINTRNED V1, V2 // 22789d72
+ VFRINTRZF V1, V2 // 22649d72
+ VFRINTRZD V1, V2 // 22689d72
+ VFRINTRPF V1, V2 // 22549d72
+ VFRINTRPD V1, V2 // 22589d72
+ VFRINTRMF V1, V2 // 22449d72
+ VFRINTRMD V1, V2 // 22489d72
+ VFRINTF V1, V2 // 22349d72
+ VFRINTD V1, V2 // 22389d72
+ XVFRINTRNEF X1, X2 // 22749d76
+ XVFRINTRNED X1, X2 // 22789d76
+ XVFRINTRZF X1, X2 // 22649d76
+ XVFRINTRZD X1, X2 // 22689d76
+ XVFRINTRPF X1, X2 // 22549d76
+ XVFRINTRPD X1, X2 // 22589d76
+ XVFRINTRMF X1, X2 // 22449d76
+ XVFRINTRMD X1, X2 // 22489d76
+ XVFRINTF X1, X2 // 22349d76
+ XVFRINTD X1, X2 // 22389d76
diff --git a/src/cmd/internal/obj/loong64/a.out.go b/src/cmd/internal/obj/loong64/a.out.go
index 4bef470c867..5e8210d5ddc 100644
--- a/src/cmd/internal/obj/loong64/a.out.go
+++ b/src/cmd/internal/obj/loong64/a.out.go
@@ -950,6 +950,28 @@ const (
AXVFRSQRTF
AXVFRSQRTD
+ // LSX and LASX floating point conversion instructions
+ AVFRINTRNEF
+ AVFRINTRNED
+ AVFRINTRZF
+ AVFRINTRZD
+ AVFRINTRPF
+ AVFRINTRPD
+ AVFRINTRMF
+ AVFRINTRMD
+ AVFRINTF
+ AVFRINTD
+ AXVFRINTRNEF
+ AXVFRINTRNED
+ AXVFRINTRZF
+ AXVFRINTRZD
+ AXVFRINTRPF
+ AXVFRINTRPD
+ AXVFRINTRMF
+ AXVFRINTRMD
+ AXVFRINTF
+ AXVFRINTD
+
// LSX and LASX integer neg instructions
AVNEGB
AVNEGH
diff --git a/src/cmd/internal/obj/loong64/anames.go b/src/cmd/internal/obj/loong64/anames.go
index d50c29a9f9d..86110c217d2 100644
--- a/src/cmd/internal/obj/loong64/anames.go
+++ b/src/cmd/internal/obj/loong64/anames.go
@@ -449,6 +449,26 @@ var Anames = []string{
"XVFRECIPD",
"XVFRSQRTF",
"XVFRSQRTD",
+ "VFRINTRNEF",
+ "VFRINTRNED",
+ "VFRINTRZF",
+ "VFRINTRZD",
+ "VFRINTRPF",
+ "VFRINTRPD",
+ "VFRINTRMF",
+ "VFRINTRMD",
+ "VFRINTF",
+ "VFRINTD",
+ "XVFRINTRNEF",
+ "XVFRINTRNED",
+ "XVFRINTRZF",
+ "XVFRINTRZD",
+ "XVFRINTRPF",
+ "XVFRINTRPD",
+ "XVFRINTRMF",
+ "XVFRINTRMD",
+ "XVFRINTF",
+ "XVFRINTD",
"VNEGB",
"VNEGH",
"VNEGW",
diff --git a/src/cmd/internal/obj/loong64/asm.go b/src/cmd/internal/obj/loong64/asm.go
index 7fdba0c6c28..1b46aa68a1f 100644
--- a/src/cmd/internal/obj/loong64/asm.go
+++ b/src/cmd/internal/obj/loong64/asm.go
@@ -1722,6 +1722,16 @@ func buildop(ctxt *obj.Link) {
opset(AVNEGH, r0)
opset(AVNEGW, r0)
opset(AVNEGV, r0)
+ opset(AVFRINTRNEF, r0)
+ opset(AVFRINTRNED, r0)
+ opset(AVFRINTRZF, r0)
+ opset(AVFRINTRZD, r0)
+ opset(AVFRINTRPF, r0)
+ opset(AVFRINTRPD, r0)
+ opset(AVFRINTRMF, r0)
+ opset(AVFRINTRMD, r0)
+ opset(AVFRINTF, r0)
+ opset(AVFRINTD, r0)
case AXVPCNTB:
opset(AXVPCNTH, r0)
@@ -1737,6 +1747,16 @@ func buildop(ctxt *obj.Link) {
opset(AXVNEGH, r0)
opset(AXVNEGW, r0)
opset(AXVNEGV, r0)
+ opset(AXVFRINTRNEF, r0)
+ opset(AXVFRINTRNED, r0)
+ opset(AXVFRINTRZF, r0)
+ opset(AXVFRINTRZD, r0)
+ opset(AXVFRINTRPF, r0)
+ opset(AXVFRINTRPD, r0)
+ opset(AXVFRINTRMF, r0)
+ opset(AXVFRINTRMD, r0)
+ opset(AXVFRINTF, r0)
+ opset(AXVFRINTD, r0)
case AVADDB:
opset(AVADDH, r0)
@@ -3583,6 +3603,46 @@ func (c *ctxt0) oprr(a obj.As) uint32 {
return 0x1da70e << 10 // xvneg.w
case AXVNEGV:
return 0x1da70f << 10 // xvneg.d
+ case AVFRINTRNEF:
+ return 0x1ca75d << 10 // vfrintrne.s
+ case AVFRINTRNED:
+ return 0x1ca75e << 10 // vfrintrne.d
+ case AVFRINTRZF:
+ return 0x1ca759 << 10 // vfrintrz.s
+ case AVFRINTRZD:
+ return 0x1ca75a << 10 // vfrintrz.d
+ case AVFRINTRPF:
+ return 0x1ca755 << 10 // vfrintrp.s
+ case AVFRINTRPD:
+ return 0x1ca756 << 10 // vfrintrp.d
+ case AVFRINTRMF:
+ return 0x1ca751 << 10 // vfrintrm.s
+ case AVFRINTRMD:
+ return 0x1ca752 << 10 // vfrintrm.d
+ case AVFRINTF:
+ return 0x1ca74d << 10 // vfrint.s
+ case AVFRINTD:
+ return 0x1ca74e << 10 // vfrint.d
+ case AXVFRINTRNEF:
+ return 0x1da75d << 10 // xvfrintrne.s
+ case AXVFRINTRNED:
+ return 0x1da75e << 10 // xvfrintrne.d
+ case AXVFRINTRZF:
+ return 0x1da759 << 10 // xvfrintrz.s
+ case AXVFRINTRZD:
+ return 0x1da75a << 10 // xvfrintrz.d
+ case AXVFRINTRPF:
+ return 0x1da755 << 10 // xvfrintrp.s
+ case AXVFRINTRPD:
+ return 0x1da756 << 10 // xvfrintrp.d
+ case AXVFRINTRMF:
+ return 0x1da751 << 10 // xvfrintrm.s
+ case AXVFRINTRMD:
+ return 0x1da752 << 10 // xvfrintrm.d
+ case AXVFRINTF:
+ return 0x1da74d << 10 // xvfrint.s
+ case AXVFRINTD:
+ return 0x1da74e << 10 // xvfrint.d
case AVSETEQV:
return 0x1ca726<<10 | 0x0<<3 // vseteqz.v
case AVSETNEV:
--
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