return true
	}
	// match: (SHRB _ (MOVQconst [c]))
	// cond: c&31 >= 8
	// result: (MOVLconst [0])
	for {
		if v_1.Op != OpAMD64MOVQconst {
			break
		}
		c := auxIntToInt64(v_1.AuxInt)
		if !(c&31 >= 8) {
			break
		}
		v.reset(OpAMD64MOVLconst)
		v.AuxInt = int32ToAuxInt(0)
		return true
	}
	// match: (SHRB _ (MOVLconst [c]))
	// cond: c&31 >= 8