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cmd/asm: add s390x VMSLG instruction
This instruction was introduced on the z14 to accelerate "limbified" multiplications for certain cryptographic algorithms. This change allows it to be used in Go assembly. Change-Id: Ic93dae7fec1756f662874c08a5abc435bce9dd9e Reviewed-on: https://go-review.googlesource.com/109695 Run-TryBot: Michael Munday <mike.munday@ibm.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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src/cmd/asm/internal/asm/testdata/s390x.s
vendored
1
src/cmd/asm/internal/asm/testdata/s390x.s
vendored
@ -367,6 +367,7 @@ TEXT main·foo(SB),DUPOK|NOSPLIT,$16-0 // TEXT main.foo(SB), DUPOK|NOSPLIT, $16-
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VSTEF $3, V2, (R9) // e7209000300b
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VSTEH $7, V31, (R2) // e7f020007809
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VSTEB $15, V29, 4094(R12) // e7d0cffef808
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VMSLG V21, V22, V23, V24 // e78563007fb8
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RET
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RET foo(SB)
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@ -941,6 +941,7 @@ const (
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AVUPLB
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AVUPLHW
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AVUPLF
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AVMSLG
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// binary
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ABYTE
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@ -677,6 +677,7 @@ var Anames = []string{
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"VUPLB",
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"VUPLHW",
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"VUPLF",
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"VMSLG",
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"BYTE",
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"WORD",
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"DWORD",
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@ -1376,6 +1376,7 @@ func buildop(ctxt *obj.Link) {
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opset(AVSTRCZFS, r)
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opset(AVSBCBIQ, r)
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opset(AVSBIQ, r)
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opset(AVMSLG, r)
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case AVSEL:
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opset(AVFMADB, r)
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opset(AWFMADB, r)
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@ -2529,6 +2530,7 @@ const (
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op_VUPLH uint32 = 0xE7D5 // VRR-a VECTOR UNPACK LOGICAL HIGH
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op_VUPLL uint32 = 0xE7D4 // VRR-a VECTOR UNPACK LOGICAL LOW
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op_VUPL uint32 = 0xE7D6 // VRR-a VECTOR UNPACK LOW
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op_VMSL uint32 = 0xE7B8 // VRR-d VECTOR MULTIPLY SUM LOGICAL
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)
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func oclass(a *obj.Addr) int {
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@ -45,6 +45,8 @@ func vop(as obj.As) (opcode, es, cs uint32) {
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return op_VAC, 0, 0
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case AVACQ:
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return op_VAC, 4, 0
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case AVMSLG:
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return op_VMSL, 3, 0
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case AVACCC:
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return op_VACCC, 0, 0
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case AVACCCQ:
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