v.AuxInt = int64ToAuxInt(int64(y) >> uint32(x))
		return true
	}
	return false
}
func rewriteValueRISCV64_OpRISCV64SRAW(v *Value) bool {
	v_1 := v.Args[1]
	v_0 := v.Args[0]
	// match: (SRAW x (MOVDconst [val]))
	// result: (SRAIW [int64(val&31)] x)
	for {
		x := v_0
		if v_1.Op != OpRISCV64MOVDconst {
			break
		}
		val := auxIntToInt64(v_1.AuxInt)
		v.reset(OpRISCV64SRAIW)

		case ASLD:
			opset(ASLDCC, r0)
			opset(ASRD, r0)
			opset(ASRDCC, r0)
			opset(AROTL, r0)

		case ASRAW: /* sraw Rb,Rs,Ra; srawi sh,Rs,Ra */
			opset(ASRAWCC, r0)

		case AEXTSWSLI:
			opset(AEXTSWSLICC, r0)

		case ASRAD: /* sraw Rb,Rs,Ra; srawi sh,Rs,Ra */
			opset(ASRADCC, r0)

		case ASUB: /* SUB Ra,Rb,Rd => subf Rd,ra,rb */
			opset(ASUB, r0)