v0.AddArg2(ptr, mem)
		return true
	}
	// match: (MOVBQSX (ANDLconst [c] x))
	// cond: c & 0x80 == 0
	// result: (ANDLconst [c & 0x7f] x)
	for {
		if v_0.Op != OpAMD64ANDLconst {
			break
		}
		c := auxIntToInt32(v_0.AuxInt)
		x := v_0.Args[0]
		if !(c&0x80 == 0) {
			break
		}
		v.reset(OpAMD64ANDLconst)
		v.AuxInt = int32ToAuxInt(c & 0x7f)
		v.AddArg(x)