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cmd/internal/obj/loong64: add {,X}VS{ADD,SUB}.{B/H/W/V}{,U} instructions support

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Go asm syntax:
	 VSADD{B,H,W,V}     V1, V2, V3
	 VSADD{B,H,W,V}U    V1, V2, V3
	 VSSUB{B,H,W,V}     V1, V2, V3
	 VSSUB{B,H,W,V}U    V1, V2, V3
	XVSADD{B,H,W,V}     X1, X2, X3
	XVSADD{B,H,W,V}U    X1, X2, X3
	XVSSUB{B,H,W,V}     X1, X2, X3
	XVSSUB{B,H,W,V}U    X1, X2, X3

Equivalent platform assembler syntax:
	 vsadd.{b,h,w,d}    v3, v2, v1
	 vsadd.{b,h,w,d}u   v3, v2, v1
	 vssub.{b,h,w,d}    v3, v2, v1
	 vssub.{b,h,w,d}u   v3, v2, v1
	xvsadd.{b,h,w,d}    x3, x2, x1
	xvsadd.{b,h,w,d}u   x3, x2, x1
	xvssub.{b,h,w,d}    x3, x2, x1
	xvssub.{b,h,w,d}u   x3, x2, x1

Change-Id: Iab8c1a9bdc4940598936f3beac846466e913ffa2
Reviewed-on: https://go-review.googlesource.com/c/go/+/719200
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Meidan Li <limeidan@loongson.cn>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
Reviewed-by: Michael Pratt <mpratt@google.com>
This commit is contained in:
Guoqi Chen 2025-11-10 15:57:14 +08:00 • committed by abner chenc
parent 0929d21978
commit abb241a789
4 changed files with 196 additions and 0 deletions
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96
src/cmd/internal/obj/loong64/asm.go
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@ -1890,6 +1890,22 @@ func buildop(ctxt *obj.Link) {
opset(AVSUBW, r0)
opset(AVSUBV, r0)
opset(AVSUBQ, r0)
opset(AVSADDB, r0)
opset(AVSADDH, r0)
opset(AVSADDW, r0)
opset(AVSADDV, r0)
opset(AVSSUBB, r0)
opset(AVSSUBH, r0)
opset(AVSSUBW, r0)
opset(AVSSUBV, r0)
opset(AVSADDBU, r0)
opset(AVSADDHU, r0)
opset(AVSADDWU, r0)
opset(AVSADDVU, r0)
opset(AVSSUBBU, r0)
opset(AVSSUBHU, r0)
opset(AVSSUBWU, r0)
opset(AVSSUBVU, r0)
case AXVADDB:
opset(AXVADDH, r0)
@ -1901,6 +1917,22 @@ func buildop(ctxt *obj.Link) {
opset(AXVSUBW, r0)
opset(AXVSUBV, r0)
opset(AXVSUBQ, r0)
opset(AXVSADDB, r0)
opset(AXVSADDH, r0)
opset(AXVSADDW, r0)
opset(AXVSADDV, r0)
opset(AXVSSUBB, r0)
opset(AXVSSUBH, r0)
opset(AXVSSUBW, r0)
opset(AXVSSUBV, r0)
opset(AXVSADDBU, r0)
opset(AXVSADDHU, r0)
opset(AXVSADDWU, r0)
opset(AXVSADDVU, r0)
opset(AXVSSUBBU, r0)
opset(AXVSSUBHU, r0)
opset(AXVSSUBWU, r0)
opset(AXVSSUBVU, r0)
case AVSLLB:
opset(AVSRLB, r0)
@ -3629,6 +3661,70 @@ func (c *ctxt0) oprrr(a obj.As) uint32 {
return 0xe81b << 15 // xvsub.d
case AXVSUBQ:
return 0xea5b << 15 // xvsub.q
case AVSADDB:
return 0x0E08C << 15 // vsadd.b
case AVSADDH:
return 0x0E08D << 15 // vsadd.h
case AVSADDW:
return 0x0E08E << 15 // vsadd.w
case AVSADDV:
return 0x0E08F << 15 // vsadd.d
case AVSSUBB:
return 0x0E090 << 15 // vssub.b
case AVSSUBH:
return 0x0E091 << 15 // vssub.w
case AVSSUBW:
return 0x0E092 << 15 // vssub.h
case AVSSUBV:
return 0x0E093 << 15 // vssub.d
case AVSADDBU:
return 0x0E094 << 15 // vsadd.bu
case AVSADDHU:
return 0x0E095 << 15 // vsadd.hu
case AVSADDWU:
return 0x0E096 << 15 // vsadd.wu
case AVSADDVU:
return 0x0E097 << 15 // vsadd.du
case AVSSUBBU:
return 0x0E098 << 15 // vssub.bu
case AVSSUBHU:
return 0x0E099 << 15 // vssub.wu
case AVSSUBWU:
return 0x0E09A << 15 // vssub.hu
case AVSSUBVU:
return 0x0E09B << 15 // vssub.du
case AXVSADDB:
return 0x0E88C << 15 // vxsadd.b
case AXVSADDH:
return 0x0E88D << 15 // vxsadd.h
case AXVSADDW:
return 0x0E88E << 15 // vxsadd.w
case AXVSADDV:
return 0x0E88F << 15 // vxsadd.d
case AXVSSUBB:
return 0x0E890 << 15 // xvssub.b
case AXVSSUBH:
return 0x0E891 << 15 // xvssub.h
case AXVSSUBW:
return 0x0E892 << 15 // xvssub.w
case AXVSSUBV:
return 0x0E893 << 15 // xvssub.d
case AXVSADDBU:
return 0x0E894 << 15 // vxsadd.bu
case AXVSADDHU:
return 0x0E896 << 15 // vxsadd.hu
case AXVSADDWU:
return 0x0E896 << 15 // vxsadd.wu
case AXVSADDVU:
return 0x0E897 << 15 // vxsadd.du
case AXVSSUBBU:
return 0x0E898 << 15 // xvssub.bu
case AXVSSUBHU:
return 0x0E899 << 15 // xvssub.hu
case AXVSSUBWU:
return 0x0E89A << 15 // xvssub.wu
case AXVSSUBVU:
return 0x0E89B << 15 // xvssub.du
case AVILVLB:
return 0xe234 << 15 // vilvl.b
case AVILVLH: