XXPERMX VS1, VS34, VS2, $2, VS3         // 0500000288611082
	XXSETACCZ A1                            // 7c830162
	XXSPLTI32DX $1, $1234, VS3              // 05000000806204d2
	XXSPLTIDP $12345678, VS4                // 050000bc8084614e
	XXSPLTIW $123456, VS3                   // 050000018066e240

	// ISA 3.1B
	HASHST R2, -8(R1)                       // 7fe115a5
	HASHSTP R2, -8(R1)                      // 7fe11525

	o1 |= uint32(p.RestArgs[0].Addr.Offset&0xffff) << 0       // imm1
	out[1] = o1
	out[0] = o0
}

// xxspltiw XT,IMM32
func type_xxspltiw(c *ctxt9, p *obj.Prog, t *Optab, out *[5]uint32) {
	o0 := GenPfxOpcodes[p.As-AXXSPLTIW]
	o1 := GenOpcodes[p.As-AXXSETACCZ]
	o1 |= uint32((p.To.Reg>>5)&0x1) << 16         // TX
	o1 |= uint32(p.To.Reg&0x1f) << 21             // T

	XXGENPCVWM:     "xxgenpcvwm",
	XXMFACC:        "xxmfacc",
	XXMTACC:        "xxmtacc",
	XXPERMX:        "xxpermx",
	XXSETACCZ:      "xxsetaccz",
	XXSPLTI32DX:    "xxsplti32dx",
	XXSPLTIDP:      "xxspltidp",
	XXSPLTIW:       "xxspltiw",
	MSGCLRU:        "msgclru",
	MSGSNDU:        "msgsndu",
	URFID:          "urfid",
	ADDEX:          "addex",
	MFFSCDRN:       "mffscdrn",
	MFFSCDRNI:      "mffscdrni",

	"MTVSRDD",
	"MTVSRWS",
	"XXLAND",
	"XXLANDC",
	"XXLEQV",
	"XXLNAND",
	"XXLOR",
	"XXLORC",
	"XXLNOR",
	"XXLORQ",
	"XXLXOR",
	"XXSEL",
	"XXMRGHW",
	"XXMRGLW",
	"XXSPLTW",
	"XXSPLTIB",
	"XXPERM",
	"XXPERMDI",
	"XXSLDWI",
	"XXBRQ",
	"XXBRD",
	"XXBRW",
	"XXBRH",
	"XSCVDPSP",
	"XSCVSPDP",
	"XSCVDPSPN",
	"XSCVSPDPN",
	"XVCVDPSP",
	"XVCVSPDP",

	// ppc64x/power9:"FMOVS\t[$]f32\\.42440000\\(SB\\)"
	// ppc64x/power10:"XXSPLTIDP\t[$]1111752704,"
	return 49.0
}

func Float64Constant() float64 {
	// ppc64x/power8:"FMOVD\t[$]f64\\.4048800000000000\\(SB\\)"
	// ppc64x/power9:"FMOVD\t[$]f64\\.4048800000000000\\(SB\\)"
	// ppc64x/power10:"XXSPLTIDP\t[$]1111752704,"
	return 49.0
}

func Float32DenormalConstant() float32 {

	AMTVSRWZ
	AMTVSRDD
	AMTVSRWS
	AXXLAND
	AXXLANDC
	AXXLEQV
	AXXLNAND
	AXXLOR
	AXXLORC
	AXXLNOR
	AXXLORQ
	AXXLXOR
	AXXSEL
	AXXMRGHW
	AXXMRGLW
	AXXSPLTW
	AXXSPLTIB
	AXXPERM
	AXXPERMDI
	AXXSLDWI
	AXXBRQ
	AXXBRD
	AXXBRW
	AXXBRH
	AXSCVDPSP
	AXSCVSPDP
	AXSCVDPSPN
	AXSCVSPDPN
	AXVCVDPSP
	AXVCVSPDP
	AXSCVDPSXDS

		case AXXSEL: /* xxsel */
			opset(AXXSEL, r0)

		case AXXMRGHW: /* xxmrghw, xxmrglw */
			opset(AXXMRGLW, r0)

		case AXXSPLTW: /* xxspltw */
			opset(AXXSPLTW, r0)

		case AXXSPLTIB: /* xxspltib */
			opset(AXXSPLTIB, r0)

		case AXXPERM: /* xxpermdi */
			opset(AXXPERM, r0)

		case AXXSLDWI: /* xxsldwi */
			opset(AXXPERMDI, r0)
			opset(AXXSLDWI, r0)

	// amd64:"MOVSS\t[$]f32.3f800000\\(SB\\)"
	// s390x:"FMOVS\t[$]f32.3f800000\\(SB\\)"
	// ppc64x/power8:"FMOVS\t[$]f32.3f800000\\(SB\\)"
	// ppc64x/power9:"FMOVS\t[$]f32.3f800000\\(SB\\)"
	// ppc64x/power10:"XXSPLTIDP\t[$]1065353216, VS0"
	// arm64:"FMOVS\t[$]\\(1.0\\)"
	if x > math.Float32frombits(0x3f800000) {
		return -x
	}
	return x
}

func constantConvertInt32(x uint32) uint32 {
	// amd64:-"MOVSS"

	XXSEL V1, V2, V3, V4            // f08110ff
	XXMRGHW VS1, VS2, VS3           // f0611090
	XXMRGLW VS1, VS2, VS3           // f0611190
	XXSPLTW VS1, $1, VS2            // f0410a90
	XXSPLTW VS33, $1, VS34          // f0410a93
	XXSPLTW V1, $1, V2              // f0410a93
	XXPERM VS1, VS2, VS3            // f06110d0
	XXSLDWI VS1, VS2, $1, VS3       // f0611110
	XXSLDWI V1, V2, $1, V3          // f0611117

		return true
	case name == "runtime.duffcopy":
		return true
	case strings.HasPrefix(name, "runtime.elf_"):
		return true
	default:
		return false
	}
}

// Try converting FMOVD/FMOVS to XXSPLTIDP. If it is converted,
// return true.
func convertFMOVtoXXSPLTIDP(p *obj.Prog) bool {
	if p.From.Type != obj.TYPE_FCONST || buildcfg.GOPPC64 < 10 {
		return false
	}
	v := p.From.Val.(float64)