VPKUDUS:        "vpkudus",
	VPMSUMB:        "vpmsumb",
	VPMSUMD:        "vpmsumd",
	VPMSUMH:        "vpmsumh",
	VPMSUMW:        "vpmsumw",
	VPOPCNTB:       "vpopcntb",
	VPOPCNTD:       "vpopcntd",
	VPOPCNTH:       "vpopcnth",
	VPOPCNTW:       "vpopcntw",
	VRLD:           "vrld",
	VSBOX:          "vsbox",
	VSHASIGMAD:     "vshasigmad",
	VSHASIGMAW:     "vshasigmaw",
	VSLD:           "vsld",

	}},
	{as: AVPOPCNTB, ytab: _yvexpandpd, prefix: Pavx, op: opBytes{
		avxEscape | evex128 | evex66 | evex0F38 | evexW0, evexN16 | evexZeroingEnabled, 0x54,
		avxEscape | evex256 | evex66 | evex0F38 | evexW0, evexN32 | evexZeroingEnabled, 0x54,
		avxEscape | evex512 | evex66 | evex0F38 | evexW0, evexN64 | evexZeroingEnabled, 0x54,
	}},
	{as: AVPOPCNTD, ytab: _yvexpandpd, prefix: Pavx, op: opBytes{

		v.AddArg2(y, x)
		return true
	}
}
func rewriteValuePPC64_OpCtz16(v *Value) bool {
	v_0 := v.Args[0]
	b := v.Block
	typ := &b.Func.Config.Types
	// match: (Ctz16 x)
	// result: (POPCNTW (MOVHZreg (ANDN <typ.Int16> (ADDconst <typ.Int16> [-1] x) x)))
	for {
		x := v_0
		v.reset(OpPPC64POPCNTW)
		v0 := b.NewValue0(v.Pos, OpPPC64MOVHZreg, typ.Int64)
		v1 := b.NewValue0(v.Pos, OpPPC64ANDN, typ.Int16)

			bFalse := s.f.NewBlock(ssa.BlockPlain)
			bEnd := s.f.NewBlock(ssa.BlockPlain)
			b.AddEdgeTo(bTrue)
			b.AddEdgeTo(bFalse)
			b.Likely = ssa.BranchLikely // most machines have popcnt nowadays

			// We have the intrinsic - use it directly.
			s.startBlock(bTrue)
			s.vars[n] = s.newValue1(op, types.Types[types.TINT], args[0])
			s.endBlock().AddEdgeTo(bEnd)