// Cbrt returns the cube root of x.
//
// Special cases are:
//
//	Cbrt(±0) = ±0
//	Cbrt(±Inf) = ±Inf
//	Cbrt(NaN) = NaN
func Cbrt(x float64) float64 {
	if haveArchCbrt {
		return archCbrt(x)
	}
	return cbrt(x)
}

func cbrt(x float64) float64 {
	const (
		B1             = 715094163                   // (682-0.03306235651)*2**20

func archAtan2(y, x float64) float64 {
	panic("not implemented")
}

const haveArchAtanh = false

func archAtanh(x float64) float64 {
	panic("not implemented")
}

const haveArchCbrt = false

func archCbrt(x float64) float64 {
	panic("not implemented")
}

const haveArchCos = false

func archCos(x float64) float64 {
	panic("not implemented")
}

const haveArchCosh = false

const haveArchAtan2 = true

func archAtan2(y, x float64) float64
func atan2TrampolineSetup(x, y float64) float64
func atan2Asm(x, y float64) float64

const haveArchCbrt = true

func archCbrt(x float64) float64
func cbrtTrampolineSetup(x float64) float64
func cbrtAsm(x float64) float64

const haveArchTan = true

func archTan(x float64) float64
func tanTrampolineSetup(x float64) float64

	MOVD $·atan2Asm(SB), R2
	MOVD R2, 0(R1)
	BR   ·atan2Asm(SB)

GLOBL ·atan2vectorfacility+0x00(SB), NOPTR, $8
DATA ·atan2vectorfacility+0x00(SB)/8, $·atan2TrampolineSetup(SB)

TEXT ·archCbrt(SB), NOSPLIT, $0
	MOVD ·cbrtvectorfacility+0x00(SB), R1
	BR   (R1)

TEXT ·cbrtTrampolineSetup(SB), NOSPLIT, $0
	MOVB   ·hasVX(SB), R1