VCLZDM V1, V2, V3                       // 10611784
	VCMPEQUQ V1, V2, V3                     // 106111c7
	VCMPEQUQCC V1, V2, V3                   // 106115c7
	VCMPGTSQ V1, V2, V3                     // 10611387
	VCMPGTSQCC V1, V2, V3                   // 10611787
	VCMPGTUQ V1, V2, V3                     // 10611287
	VCMPGTUQCC V1, V2, V3                   // 10611687
	VCMPSQ V1, V2, CR2                      // 11011141

	"VDIVEUQ",
	"VDIVEUD",
	"VDIVESW",
	"VDIVESQ",
	"VDIVESD",
	"VCTZDM",
	"VCNTMBW",
	"VCNTMBH",
	"VCNTMBD",
	"VCNTMBB",
	"VCMPUQ",
	"VCMPSQ",
	"VCMPGTUQCC",
	"VCMPGTUQ",
	"VCMPGTSQCC",
	"VCMPGTSQ",
	"VCMPEQUQCC",
	"VCMPEQUQ",
	"VCLZDM",
	"VCLRRB",
	"VCLRLB",
	"VCFUGED",
	"STXVRWX",
	"STXVRHX",
	"STXVRDX",
	"STXVRBX",
	"STXVPX",
	"STXVP",

	ACMOVWHI
	ACMOVWLE
	ACMOVWLS
	ACMOVWLT
	ACMOVWMI
	ACMOVWNE
	ACMOVWOC
	ACMOVWOS
	ACMOVWPC
	ACMOVWPL
	ACMOVWPS
	ACMPB
	ACMPL
	ACMPPD
	ACMPPS
	ACMPQ
	ACMPSB
	ACMPSD
	ACMPSL
	ACMPSQ
	ACMPSS
	ACMPSW
	ACMPW
	ACMPXCHG16B
	ACMPXCHG8B
	ACMPXCHGB
	ACMPXCHGL
	ACMPXCHGQ
	ACMPXCHGW
	ACOMISD
	ACOMISS
	ACPUID
	ACQO
	ACRC32B
	ACRC32L

			movd.From.Reg = v.Args[i].Reg()
			movd.From.Offset = 256
			movd.To.Type = obj.TYPE_REG
			movd.To.Reg = v.Args[i].Reg()
		}

		cmpu := s.Prog(s390x.ACMPU)
		cmpu.From.Reg = v.Args[1].Reg()
		cmpu.From.Type = obj.TYPE_REG
		cmpu.To.Reg = v.Args[2].Reg()
		cmpu.To.Type = obj.TYPE_REG

		bne := s.Prog(s390x.ABLT)
		bne.To.Type = obj.TYPE_BRANCH
		bne.To.SetTarget(mvc)

		if v.AuxInt > 0 {

	// special case Pow(+0, y < 0) = +Inf
	FMOVD	y+8(FP), F2
	FMOVD	$(0.0), F4
	FCMPU	F2, F4
	BLT	posZeroLtZero				//y < 0.0
	BR	Normal
xIsNegZero:
	// special case Pow(-0, -Inf) = +Inf
	MOVD	$NegInf, R4
	CMPUBEQ	R2, R4, zeroNegInf
	FMOVD	y+8(FP), F2
negZeroNegY:
	// special case Pow(x, ±0) = 1 for any x
	FMOVD	$(0.0), F4
	FCMPU	F4, F2
	BLT	negZeroGtZero		// y > 0.0
	BEQ yIsZero				// y = 0.0

		p.To.Reg = regEntryTmp1
		if ctxt.Arch.Family == sys.I386 {
			p.As = ALEAL
		}

		// Set jne branch target.
		jne.To.SetTarget(p)

		// CMPQ panic_argp(regEntryTmp0), regEntryTmp1
		p = obj.Appendp(p, newprog)
		p.As = ACMPQ
		p.From.Type = obj.TYPE_MEM
		p.From.Reg = regEntryTmp0
		p.From.Offset = 0 // Panic.argp
		p.To.Type = obj.TYPE_REG
		p.To.Reg = regEntryTmp1

	"VPCMPEQQ",
	"VPCMPEQW",
	"VPCMPESTRI",
	"VPCMPESTRM",
	"VPCMPGTB",
	"VPCMPGTD",
	"VPCMPGTQ",
	"VPCMPGTW",
	"VPCMPISTRI",
	"VPCMPISTRM",
	"VPCMPQ",
	"VPCMPUB",
	"VPCMPUD",
	"VPCMPUQ",
	"VPCMPUW",
	"VPCMPW",
	"VPCOMPRESSB",
	"VPCOMPRESSD",
	"VPCOMPRESSQ",
	"VPCOMPRESSW",
	"VPCONFLICTD",
	"VPCONFLICTQ",
	"VPDPBUSD",
	"VPDPBUSDS",
	"VPDPWSSD",

			// the spill location.
			var name LocalSlot
			if v.Op == OpStoreReg {
				name = names[v.Args[0].ID]
			} else {
				name = names[v.ID]
			}
			if name.N != nil && v.Type.Compare(name.Type) == types.CMPeq {
				for _, id := range s.interfere[v.ID] {
					h := f.getHome(id)
					if h != nil && h.(LocalSlot).N == name.N && h.(LocalSlot).Off == name.Off {
						// A variable can interfere with itself.

			// guard against underflow.
			//
			//	CMPU	SP, $(framesize-StackSmall)
			//	BLT	label-of-call-to-morestack
			if offset <= 0xffff {
				p = obj.Appendp(p, c.newprog)
				p.As = ACMPU
				p.From.Type = obj.TYPE_REG
				p.From.Reg = REGSP
				p.To.Type = obj.TYPE_CONST
				p.To.Offset = offset
			} else {
				// Constant is too big for CMPU.
				p = obj.Appendp(p, c.newprog)
				p.As = AMOVD

		case STOSB, MOVSB, CMPSB, LODSB, SCASB:
			prefix = "byte "
		case STOSW, MOVSW, CMPSW, LODSW, SCASW:
			prefix = "word "
		case STOSD, MOVSD, CMPSD, LODSD, SCASD:
			prefix = "dword "
		case STOSQ, MOVSQ, CMPSQ, LODSQ, SCASQ:
			prefix = "qword "
		case LAR:
			prefix = "word "
		case BOUND:
			if inst.Mode == 32 {
				prefix = "qword "
			} else {
				prefix = "dword "
			}