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cmd/internal/obj/loong64: add {V,XV}MUL{B/H/W/V} and {V,XV}MUH{B/H/W/V}[U] instructions support

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Go asm syntax:
	 VMUL{B/H/W/V}		VK, VJ, VD
	 VMUH{B/H/W/V}[U]	VK, VJ, VD
	XVMUL{B/H/W/V}		XK, XJ, XD
	XVMUH{B/H/W/V}[U]	XK, XJ, XD

Equivalent platform assembler syntax:
	 vmul.{b/h/w/d}		vd, vj, vk
	 vmuh.{b/h/w/d}[u]	vd, vj, vk
	xvmul.{b/h/w/d}		xd, xj, xk
	xvmuh.{b/h/w/d}[u]	xd, xj, xk

Change-Id: I2f15a5b4b6303a0f82cb85114477f58e1b5fd950
Reviewed-on: https://go-review.googlesource.com/c/go/+/636375
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
This commit is contained in:
Xiaolin Zhao 2024-12-16 09:51:29 +08:00 • committed by Gopher Robot
parent 6c70f2b960
commit b0e2f185c5
4 changed files with 148 additions and 0 deletions
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72
src/cmd/internal/obj/loong64/asm.go
View file

@ -1555,6 +1555,18 @@ func buildop(ctxt *obj.Link) {
opset(AVILVHH, r0)
opset(AVILVHW, r0)
opset(AVILVHV, r0)
opset(AVMULB, r0)
opset(AVMULH, r0)
opset(AVMULW, r0)
opset(AVMULV, r0)
opset(AVMUHB, r0)
opset(AVMUHH, r0)
opset(AVMUHW, r0)
opset(AVMUHV, r0)
opset(AVMUHBU, r0)
opset(AVMUHHU, r0)
opset(AVMUHWU, r0)
opset(AVMUHVU, r0)
case AXVSEQB:
opset(AXVSEQH, r0)
@ -1568,6 +1580,18 @@ func buildop(ctxt *obj.Link) {
opset(AXVILVHH, r0)
opset(AXVILVHW, r0)
opset(AXVILVHV, r0)
opset(AXVMULB, r0)
opset(AXVMULH, r0)
opset(AXVMULW, r0)
opset(AXVMULV, r0)
opset(AXVMUHB, r0)
opset(AXVMUHH, r0)
opset(AXVMUHW, r0)
opset(AXVMUHV, r0)
opset(AXVMUHBU, r0)
opset(AXVMUHHU, r0)
opset(AXVMUHWU, r0)
opset(AXVMUHVU, r0)
case AVANDB:
opset(AVORB, r0)
@ -2986,6 +3010,54 @@ func (c *ctxt0) oprrr(a obj.As) uint32 {
return 0xea3a << 15 // xvilvh.w
case AXVILVHV:
return 0xea3b << 15 // xvilvh.d
case AVMULB:
return 0xe108 << 15 // vmul.b
case AVMULH:
return 0xe109 << 15 // vmul.h
case AVMULW:
return 0xe10a << 15 // vmul.w
case AVMULV:
return 0xe10b << 15 // vmul.d
case AVMUHB:
return 0xe10c << 15 // vmuh.b
case AVMUHH:
return 0xe10d << 15 // vmuh.h
case AVMUHW:
return 0xe10e << 15 // vmuh.w
case AVMUHV:
return 0xe10f << 15 // vmuh.d
case AVMUHBU:
return 0xe110 << 15 // vmuh.bu
case AVMUHHU:
return 0xe111 << 15 // vmuh.hu
case AVMUHWU:
return 0xe112 << 15 // vmuh.wu
case AVMUHVU:
return 0xe113 << 15 // vmuh.du
case AXVMULB:
return 0xe908 << 15 // xvmul.b
case AXVMULH:
return 0xe909 << 15 // xvmul.h
case AXVMULW:
return 0xe90a << 15 // xvmul.w
case AXVMULV:
return 0xe90b << 15 // xvmul.d
case AXVMUHB:
return 0xe90c << 15 // xvmuh.b
case AXVMUHH:
return 0xe90d << 15 // xvmuh.h
case AXVMUHW:
return 0xe90e << 15 // xvmuh.w
case AXVMUHV:
return 0xe90f << 15 // xvmuh.d
case AXVMUHBU:
return 0xe910 << 15 // xvmuh.bu
case AXVMUHHU:
return 0xe911 << 15 // xvmuh.hu
case AXVMUHWU:
return 0xe912 << 15 // xvmuh.wu
case AXVMUHVU:
return 0xe913 << 15 // xvmuh.du
}
if a < 0 {