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cmd/internal/obj/loong64: add {V,XV}{FSQRT/FRECIP/FRSQRT}.{S/D} instructions support

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Go asm syntax:
	 V{FSQRT/FRECIP/FRSQRT}{F/D}	VJ, VD
	XV{FSQRT/FRECIP/FRSQRT}{F/D}	XJ, XD

Equivalent platform assembler syntax:
	 v{fsqrt/frecip/frsqrt}.{s/d}	vd, vj
	xv{fsqrt/frecip/frsqrt}.{s/d}	xd, xj

Change-Id: I3fdbe3193659d7532164451b087ccf725053172f
Reviewed-on: https://go-review.googlesource.com/c/go/+/636395
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
This commit is contained in:
Xiaolin Zhao 2024-12-16 10:53:00 +08:00 • committed by abner chenc
parent 937368f84e
commit 80f068928f
4 changed files with 76 additions and 0 deletions
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14
src/cmd/asm/internal/asm/testdata/loong64enc1.s vendored
View file

@ -835,3 +835,17 @@ lable2:
XVMODHU X3, X2, X1 // 418ce674 XVMODHU X3, X2, X1 // 418ce674
XVMODWU X3, X2, X1 // 410ce774 XVMODWU X3, X2, X1 // 410ce774
XVMODVU X3, X2, X1 // 418ce774 XVMODVU X3, X2, X1 // 418ce774
// [X]VF{SQRT/RECIP/RSQRT}{F/D} instructions
VFSQRTF V1, V2 // 22e49c72
VFSQRTD V1, V2 // 22e89c72
VFRECIPF V1, V2 // 22f49c72
VFRECIPD V1, V2 // 22f89c72
VFRSQRTF V1, V2 // 22049d72
VFRSQRTD V1, V2 // 22089d72
XVFSQRTF X2, X1 // 41e49c76
XVFSQRTD X2, X1 // 41e89c76
XVFRECIPF X2, X1 // 41f49c76
XVFRECIPD X2, X1 // 41f89c76
XVFRSQRTF X2, X1 // 41049d76
XVFRSQRTD X2, X1 // 41089d76

14
src/cmd/internal/obj/loong64/a.out.go
View file

@ -936,6 +936,20 @@ const (
AXVMUHWU AXVMUHWU
AXVMUHVU AXVMUHVU
// LSX and LASX floating point instructions
AVFSQRTF
AVFSQRTD
AVFRECIPF
AVFRECIPD
AVFRSQRTF
AVFRSQRTD
AXVFSQRTF
AXVFSQRTD
AXVFRECIPF
AXVFRECIPD
AXVFRSQRTF
AXVFRSQRTD
ALAST ALAST
// aliases // aliases

12
src/cmd/internal/obj/loong64/anames.go
View file

@ -437,5 +437,17 @@ var Anames = []string{
"XVMUHHU", "XVMUHHU",
"XVMUHWU", "XVMUHWU",
"XVMUHVU", "XVMUHVU",
"VFSQRTF",
"VFSQRTD",
"VFRECIPF",
"VFRECIPD",
"VFRSQRTF",
"VFRSQRTD",
"XVFSQRTF",
"XVFSQRTD",
"XVFRECIPF",
"XVFRECIPD",
"XVFRSQRTF",
"XVFRSQRTD",
"LAST", "LAST",
} }

36
src/cmd/internal/obj/loong64/asm.go
View file

@ -1653,11 +1653,23 @@ func buildop(ctxt *obj.Link) {
opset(AVPCNTH, r0) opset(AVPCNTH, r0)
opset(AVPCNTW, r0) opset(AVPCNTW, r0)
opset(AVPCNTV, r0) opset(AVPCNTV, r0)
opset(AVFSQRTF, r0)
opset(AVFSQRTD, r0)
opset(AVFRECIPF, r0)
opset(AVFRECIPD, r0)
opset(AVFRSQRTF, r0)
opset(AVFRSQRTD, r0)
case AXVPCNTB: case AXVPCNTB:
opset(AXVPCNTH, r0) opset(AXVPCNTH, r0)
opset(AXVPCNTW, r0) opset(AXVPCNTW, r0)
opset(AXVPCNTV, r0) opset(AXVPCNTV, r0)
opset(AXVFSQRTF, r0)
opset(AXVFSQRTD, r0)
opset(AXVFRECIPF, r0)
opset(AXVFRECIPD, r0)
opset(AXVFRSQRTF, r0)
opset(AXVFRSQRTD, r0)
case AVADDB: case AVADDB:
opset(AVADDH, r0) opset(AVADDH, r0)
@ -3330,6 +3342,30 @@ func (c *ctxt0) oprr(a obj.As) uint32 {
return 0x1da70a << 10 // xvpcnt.w return 0x1da70a << 10 // xvpcnt.w
case AXVPCNTV: case AXVPCNTV:
return 0x1da70b << 10 // xvpcnt.v return 0x1da70b << 10 // xvpcnt.v
case AVFSQRTF:
return 0x1ca739 << 10 // vfsqrt.s
case AVFSQRTD:
return 0x1ca73a << 10 // vfsqrt.d
case AVFRECIPF:
return 0x1ca73d << 10 // vfrecip.s
case AVFRECIPD:
return 0x1ca73e << 10 // vfrecip.d
case AVFRSQRTF:
return 0x1ca741 << 10 // vfrsqrt.s
case AVFRSQRTD:
return 0x1ca742 << 10 // vfrsqrt.d
case AXVFSQRTF:
return 0x1da739 << 10 // xvfsqrt.s
case AXVFSQRTD:
return 0x1da73a << 10 // xvfsqrt.d
case AXVFRECIPF:
return 0x1da73d << 10 // xvfrecip.s
case AXVFRECIPD:
return 0x1da73e << 10 // xvfrecip.d
case AXVFRSQRTF:
return 0x1da741 << 10 // xvfrsqrt.s
case AXVFRSQRTD:
return 0x1da742 << 10 // xvfrsqrt.d
} }
c.ctxt.Diag("bad rr opcode %v", a) c.ctxt.Diag("bad rr opcode %v", a)