// ppc64le/power10:`MOVWZ\s+[0-9]+\(R[0-9]+\),\sR[0-9]+`,-`ADD`
	// ppc64x/power9:`ADD`,`MOVWZ\s+\(R[0-9]+\),\sR[0-9]+`
	// ppc64x/power8:`ADD`,`MOVWZ\s+\(R[0-9]+\),\sR[0-9]+`
	b3 := sw.w[1<<16]
	// ppc64le/power10:`MOVWZ\s+[0-9]+\(R[0-9]+\),\sR[0-9]+`,-`ADD`
	// ppc64x/power9:`ADD`,`MOVWZ\s+\(R[0-9]+\),\sR[0-9]+`
	// ppc64x/power8:`ADD`,`MOVWZ\s+\(R[0-9]+\),\sR[0-9]+`
	c3 := sw.w[1<<28]
	// ppc64x:`MOVWZ\s+\(R[0-9]+\)\(R[0-9]+\),\sR[0-9]+`

	// ppc64x/power10:"SETBC\tCR0EQ",-"ISEL"
	// ppc64x/power9:"CMP","ISEL",-"SETBC\tCR0EQ"
	// ppc64x/power8:"CMP","ISEL",-"SETBC\tCR0EQ"
	b := x == y
	return b
}
func TestSetNeq64(x uint64, y uint64) bool {
	// ppc64x/power10:"SETBCR\tCR0EQ",-"ISEL"
	// ppc64x/power9:"CMP","ISEL",-"SETBCR\tCR0EQ"
	// ppc64x/power8:"CMP","ISEL",-"SETBCR\tCR0EQ"
	b := x != y
	return b
}
func TestSetLt64(x uint64, y uint64) bool {

env GOARCH=ppc64
env GOPPC64=power9
go list -f '{{context.ToolTags}}'
stdout 'ppc64.power8 ppc64.power9'

env GOARCH=ppc64
env GOPPC64=power10
go list -f '{{context.ToolTags}}'
stdout 'ppc64.power8 ppc64.power9 ppc64.power10'

env GOARCH=ppc64le
env GOPPC64=power9
go list -f '{{context.ToolTags}}'
stdout 'ppc64le.power8 ppc64le.power9'

env GOARCH=ppc64le
env GOPPC64=power10
go list -f '{{context.ToolTags}}'

func moveDisjointStack32() {
	var s [32]byte
	// ppc64x:-".*memmove"
	// ppc64x/power8:"LXVD2X",-"ADD",-"BC"
	// ppc64x/power9:"LXV",-"LXVD2X",-"ADD",-"BC"
	copy(s[:], x[:32])
	runtime.KeepAlive(&s)
}

func moveDisjointStack64() {
	var s [96]byte
	// ppc64x:-".*memmove"
	// ppc64x/power8:"LXVD2X","ADD","BC"
	// ppc64x/power9:"LXV",-"LXVD2X",-"ADD",-"BC"
	copy(s[:], x[:96])
	runtime.KeepAlive(&s)

	// ppc64x/power8:"ADDIS\t[$]19,", "ADD\t[$]-10617,"
	out[2] = a + 1234567
	// ppc64x/power10:"ADD\t[$]-1234567,"
	// ppc64x/power9:"ADDIS\t[$]-19,", "ADD\t[$]10617,"
	// ppc64x/power8:"ADDIS\t[$]-19,", "ADD\t[$]10617,"
	out[3] = a - 1234567
	// ppc64x/power10:"ADD\t[$]2147450879,"
	// ppc64x/power9:"ADDIS\t[$]32767,", "ADD\t[$]32767,"
	// ppc64x/power8:"ADDIS\t[$]32767,", "ADD\t[$]32767,"
	out[4] = a + 0x7FFF7FFF

	return hwc&value != 0
}

func Name() string {
	switch {
	case PPC64.IsPOWER10:
		return "POWER10"
	case PPC64.IsPOWER9:
		return "POWER9"
	case PPC64.IsPOWER8:
		return "POWER8"
	}
	return ""

	out[0] = 0xFFFFF00000000001
	// ppc64x: "MOVD\t[$]-1", "RLDC\tR[0-9]+, [$]43, [$]63,"
	out[1] = 0xFFFFF80000000001
	// ppc64x: "MOVD\t[$]-1", "RLDC\tR[0-9]+, [$]43, [$]4,"
	out[2] = 0x0FFFF80000000000
	// ppc64x/power8: "MOVD\t[$]-1", "RLDC\tR[0-9]+, [$]33, [$]63,"
	// ppc64x/power9: "MOVD\t[$]-1", "RLDC\tR[0-9]+, [$]33, [$]63,"
	// ppc64x/power10: "MOVD\t[$]-8589934591,"
	out[3] = 0xFFFFFFFE00000001

//  Constant Optimizations  //
// ------------------------ //

func Float32Constant() float32 {
	// ppc64x/power8:"FMOVS\t[$]f32\\.42440000\\(SB\\)"
	// ppc64x/power9:"FMOVS\t[$]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\\)"

	// arm64:"RBIT","CLZ"
	// s390x:"FLOGR"
	// ppc64x/power8:"ANDN","POPCNTD"
	// ppc64x/power9: "CNTTZD"
	// wasm:"I64Ctz"
	return bits.TrailingZeros(n)
}

func TrailingZeros64(n uint64) int {
	// amd64/v1,amd64/v2:"BSFQ","MOVL\t\\$64","CMOVQEQ"
	// amd64/v3:"TZCNTQ"
	// 386:"BSFL"
	// arm64:"RBIT","CLZ"
	// s390x:"FLOGR"
	// ppc64x/power8:"ANDN","POPCNTD"
	// ppc64x/power9: "CNTTZD"
	// wasm:"I64Ctz"

// those as well. The minimum processor requirement is POWER8 (ISA 2.07).
// The struct is padded to avoid false sharing.
var PPC64 struct {
	_         CacheLinePad
	HasDARN   bool // Hardware random number generator (requires kernel enablement)
	HasSCV    bool // Syscall vectored (requires kernel enablement)
	IsPOWER8  bool // ISA v2.07 (POWER8)
	IsPOWER9  bool // ISA v3.00 (POWER9)
	IsPOWER10 bool // ISA v3.1  (POWER10)