// result: (CMPWconst x [int16(c)])
	for {
		x := v_0
		if v_1.Op != Op386MOVLconst {
			break
		}
		c := auxIntToInt32(v_1.AuxInt)
		v.reset(Op386CMPWconst)
		v.AuxInt = int16ToAuxInt(int16(c))
		v.AddArg(x)
		return true
	}
	// match: (CMPW (MOVLconst [c]) x)
	// result: (InvertFlags (CMPWconst x [int16(c)]))
	for {
		if v_0.Op != Op386MOVLconst {
			break
		}

			x := v_0
			if v_1.Op != OpS390XMOVDconst {
				continue
			}
			c := auxIntToInt64(v_1.AuxInt)
			if !(is16Bit(c)) {
				continue
			}
			v.reset(OpS390XADDCconst)
			v.AuxInt = int16ToAuxInt(int16(c))
			v.AddArg(x)
			return true
		}
		break
	}
	return false
}
func rewriteValueS390X_OpS390XADDE(v *Value) bool {
	v_2 := v.Args[2]
	v_1 := v.Args[1]
	v_0 := v.Args[0]

	for {
		if v_1.Op != OpConst64 {
			break
		}
		c := auxIntToInt64(v_1.AuxInt)
		if !(uint64(c) >= 16) {
			break
		}
		v.reset(OpConst16)
		v.AuxInt = int16ToAuxInt(0)
		return true
	}
	return false
}
func rewriteValueARM_OpLsh16x8(v *Value) bool {
	v_1 := v.Args[1]
	v_0 := v.Args[0]
	b := v.Block
	typ := &b.Func.Config.Types