func rewriteValuePPC64_OpPPC64SUBE(v *Value) bool {
	v_2 := v.Args[2]
	v_1 := v.Args[1]
	v_0 := v.Args[0]
	b := v.Block
	typ := &b.Func.Config.Types
	// match: (SUBE x y (Select1 <typ.UInt64> (SUBCconst (MOVDconst [0]) [0])))
	// result: (SUBC x y)
	for {
		x := v_0
		y := v_1
		if v_2.Op != OpSelect1 || v_2.Type != typ.UInt64 {
			break
		}
		v_2_0 := v_2.Args[0]