DENBCDQCC:      "denbcdq.",
	DIEX:           "diex",
	DIEXCC:         "diex.",
	DIEXQCC:        "diexq.",
	DIEXQ:          "diexq",
	DMUL:           "dmul",
	DMULCC:         "dmul.",
	DMULQ:          "dmulq",
	DMULQCC:        "dmulq.",
	DQUA:           "dqua",
	DQUACC:         "dqua.",
	DQUAI:          "dquai",
	DQUAICC:        "dquai.",
	DQUAIQ:         "dquaiq",

	// arm/7:"ADDD",-"MULD"
	// arm64:"FADDD",-"FMULD"
	// ppc64x:"FADD",-"FMUL"
	// riscv64:"FADDD",-"FMULD"
	return f * 2.0
}

func DivPow2(f1, f2, f3 float64) (float64, float64, float64) {
	// 386/sse2:"MULSD",-"DIVSD"
	// amd64:"MULSD",-"DIVSD"
	// arm/7:"MULD",-"DIVD"
	// arm64:"FMULD",-"FDIVD"
	// ppc64x:"FMUL",-"FDIV"
	// riscv64:"FMULD",-"FDIVD"
	x := f1 / 16.0

	// 386/sse2:"MULSD",-"DIVSD"

	BEQ     L9
	WFMSDB  V0, V1, V6, V0
	MOVD    $sinhx4ff<>+0(SB), R3
	FNEG    F0, F0
	FMOVD   0(R3), F2
	FMUL    F2, F0
	ANDW    $0xFFFF, R2
	WORD    $0xA53FEFB6     //llill %r3,61366
	SUBW    R2, R3, R2
	RISBGN	$0, $15, $48, R2, R1
	LDGR    R1, F2
	FMUL    F2, F0
	FMOVD   F0, ret+8(FP)
	RET

L20:
	MOVD    $sinhxadd<>+0(SB), R2
	FMOVD   0(R2), F2
	MOVD    sinhrlog2<>+0(SB), R2

Eugene Burmako <******@****.***> 1671166704 -0800

(Sub(32|64)F ...) => (SUBS(S|D) ...)

(Mul(64|32|16|8) ...) => (MUL(Q|L|L|L) ...)
(Mul(32|64)F ...) => (MULS(S|D) ...)

(Select0 (Mul64uover x y)) => (Select0 <typ.UInt64> (MULQU x y))
(Select0 (Mul32uover x y)) => (Select0 <typ.UInt32> (MULLU x y))
(Select1 (Mul(64|32)uover x y)) => (SETO (Select1 <types.TypeFlags> (MUL(Q|L)U x y)))

(Hmul(64|32) ...) => (HMUL(Q|L) ...)
(Hmul(64|32)u ...) => (HMUL(Q|L)U ...)

		return true
	}
	return false
}

// IsLoong64MUL reports whether the op (as defined by an loong64.A* constant) is
// one of the MUL/DIV/REM instructions that require special handling.
func IsLoong64MUL(op obj.As) bool {
	switch op {
	case loong64.AMUL, loong64.AMULU, loong64.AMULV, loong64.AMULVU,
		loong64.ADIV, loong64.ADIVU, loong64.ADIVV, loong64.ADIVVU,
		loong64.AREM, loong64.AREMU, loong64.AREMV, loong64.AREMVU:

		t.Errorf("line number missing in assembly:\n%s", out)
	}
}

var issue16214src = `
package main

func Mod32(x uint32) uint32 {
	return x % 3 // frontend rewrites it as HMUL with 2863311531, the LITERAL node has unknown Pos
}

	FMADD   F1, F6, F4
	FMOVD   0(R2), F1
	FMADD   F3, F2, F1
	FMUL    F0, F2
	WFMADB  V6, V4, V1, V6
	TMLL	R1, $2
	FMADD   F6, F2, F0
	BNE     L34
	FMOVD   F0, ret+8(FP)
	RET

L33:
	MOVD    $sincosxnan<>+0(SB), R1
	FMOVD   0(R1), F0
	FMOVD   F0, ret+8(FP)
	RET

L36:
	FMUL    F0, F0
	MOVD    $sincosc0<>+0(SB), R1
	WFMDB   V0, V0, V1
	WFMADB  V0, V4, V20, V4

	var t1 = new(P256Element)

	z.Square(x)
	z.Mul(x, z)
	z.Square(z)
	z.Mul(x, z)
	t0.Square(z)
	for s := 1; s < 3; s++ {
		t0.Square(t0)
	}
	t0.Mul(z, t0)
	t1.Square(t0)
	for s := 1; s < 6; s++ {
		t1.Square(t1)
	}
	t0.Mul(t0, t1)
	for s := 0; s < 3; s++ {
		t0.Square(t0)
	}
	z.Mul(z, t0)
	t0.Square(z)
	t0.Mul(x, t0)
	t1.Square(t0)
	for s := 1; s < 16; s++ {
		t1.Square(t1)

	z.Square(x)
	z.Mul(x, z)
	z.Square(z)
	t1.Mul(x, z)
	z.Square(t1)
	for s := 1; s < 3; s++ {
		z.Square(z)
	}
	z.Mul(t1, z)
	t0.Square(z)
	for s := 1; s < 6; s++ {
		t0.Square(t0)
	}
	t0.Mul(z, t0)
	t2.Square(t0)
	for s := 1; s < 12; s++ {
		t2.Square(t2)
	}
	t0.Mul(t0, t2)
	for s := 0; s < 6; s++ {
		t0.Square(t0)
	}
	z.Mul(z, t0)
	t0.Square(z)
	t2.Mul(x, t0)