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cmd/internal/obj/loong64: add {V,XV}NEG{B/H/W/V} instructions support

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Go asm syntax:
	 VNEG{B/H/W/V}		VJ, VD
	XVNEG{B/H/W/V}		XJ, XD

Equivalent platform assembler syntax:
	 vneg.{b/h/w/d}		vd, vj
	xvneg.{b/h/w/d}		xd, xj

Change-Id: Ie0a82a434b0ffbcb77425a65b96eff56e030028c
Reviewed-on: https://go-review.googlesource.com/c/go/+/635935
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: David Chase <drchase@google.com>
This commit is contained in:
Xiaolin Zhao 2024-12-13 17:20:38 +08:00 • committed by abner chenc
parent 38d146d572
commit f41fdd962d
4 changed files with 52 additions and 0 deletions
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10
src/cmd/asm/internal/asm/testdata/loong64enc1.s vendored
View file

@ -849,3 +849,13 @@ lable2:
XVFRECIPD X2, X1 // 41f89c76
XVFRSQRTF X2, X1 // 41049d76
XVFRSQRTD X2, X1 // 41089d76
// [X]VNEG{B/H/W/V} instructions
VNEGB V1, V2 // 22309c72
VNEGH V1, V2 // 22349c72
VNEGW V1, V2 // 22389c72
VNEGV V1, V2 // 223c9c72
XVNEGB X2, X1 // 41309c76
XVNEGH X2, X1 // 41349c76
XVNEGW X2, X1 // 41389c76
XVNEGV X2, X1 // 413c9c76

10
src/cmd/internal/obj/loong64/a.out.go
View file

@ -950,6 +950,16 @@ const (
AXVFRSQRTF
AXVFRSQRTD
// LSX and LASX integer neg instructions
AVNEGB
AVNEGH
AVNEGW
AVNEGV
AXVNEGB
AXVNEGH
AXVNEGW
AXVNEGV
ALAST
// aliases

8
src/cmd/internal/obj/loong64/anames.go
View file

@ -449,5 +449,13 @@ var Anames = []string{
"XVFRECIPD",
"XVFRSQRTF",
"XVFRSQRTD",
"VNEGB",
"VNEGH",
"VNEGW",
"VNEGV",
"XVNEGB",
"XVNEGH",
"XVNEGW",
"XVNEGV",
"LAST",
}

24
src/cmd/internal/obj/loong64/asm.go
View file

@ -1659,6 +1659,10 @@ func buildop(ctxt *obj.Link) {
opset(AVFRECIPD, r0)
opset(AVFRSQRTF, r0)
opset(AVFRSQRTD, r0)
opset(AVNEGB, r0)
opset(AVNEGH, r0)
opset(AVNEGW, r0)
opset(AVNEGV, r0)
case AXVPCNTB:
opset(AXVPCNTH, r0)
@ -1670,6 +1674,10 @@ func buildop(ctxt *obj.Link) {
opset(AXVFRECIPD, r0)
opset(AXVFRSQRTF, r0)
opset(AXVFRSQRTD, r0)
opset(AXVNEGB, r0)
opset(AXVNEGH, r0)
opset(AXVNEGW, r0)
opset(AXVNEGV, r0)
case AVADDB:
opset(AVADDH, r0)
@ -3366,6 +3374,22 @@ func (c *ctxt0) oprr(a obj.As) uint32 {
return 0x1da741 << 10 // xvfrsqrt.s
case AXVFRSQRTD:
return 0x1da742 << 10 // xvfrsqrt.d
case AVNEGB:
return 0x1ca70c << 10 // vneg.b
case AVNEGH:
return 0x1ca70d << 10 // vneg.h
case AVNEGW:
return 0x1ca70e << 10 // vneg.w
case AVNEGV:
return 0x1ca70f << 10 // vneg.d
case AXVNEGB:
return 0x1da70c << 10 // xvneg.b
case AXVNEGH:
return 0x1da70d << 10 // xvneg.h
case AXVNEGW:
return 0x1da70e << 10 // xvneg.w
case AXVNEGV:
return 0x1da70f << 10 // xvneg.d
}
c.ctxt.Diag("bad rr opcode %v", a)