(Ctz8  <t> x) => (CLZW <t> (RBITW <typ.UInt32> (ORconst <typ.UInt32> [0x100] x)))

(PopCount64 <t> x) => (FMOVDfpgp <t> (VUADDLV <typ.Float64> (VCNT <typ.Float64> (FMOVDgpfp <typ.Float64> x))))
(PopCount32 <t> x) => (FMOVDfpgp <t> (VUADDLV <typ.Float64> (VCNT <typ.Float64> (FMOVDgpfp <typ.Float64> (ZeroExt32to64 x)))))
(PopCount16 <t> x) => (FMOVDfpgp <t> (VUADDLV <typ.Float64> (VCNT <typ.Float64> (FMOVDgpfp <typ.Float64> (ZeroExt16to64 x)))))

		{name: "FMOVDgpfp", argLength: 1, reg: gpfp, asm: "FMOVD"}, // move int64 to float64 (no conversion)
		{name: "FMOVDfpgp", argLength: 1, reg: fpgp, asm: "FMOVD"}, // move float64 to int64 (no conversion)
		{name: "FMOVSgpfp", argLength: 1, reg: gpfp, asm: "FMOVS"}, // move 32bits from int to float reg (no conversion)

		v0.AddArg(x)
		v.AddArg(v0)
		return true
	}
	return false
}
func rewriteValueARM64_OpARM64FMOVDfpgp(v *Value) bool {
	v_0 := v.Args[0]
	b := v.Block
	// match: (FMOVDfpgp <t> (Arg [off] {sym}))
	// result: @b.Func.Entry (Arg <t> [off] {sym})
	for {
		t := v.Type
		if v_0.Op != OpArg {
			break
		}
		off := auxIntToInt32(v_0.AuxInt)
		sym := auxToSym(v_0.Aux)

				{0, 9223372034707292160}, // F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 F20 F21 F22 F23 F24 F25 F26 F27 F28 F29 F30 F31
			},
		},
	},
	{
		name:   "FMOVDfpgp",
		argLen: 1,
		asm:    arm64.AFMOVD,
		reg: regInfo{
			inputs: []inputInfo{