3945   Register string_length = a3;  in EmitFastOneByteArrayJoin()  local
3980   __ mov(string_length, zero_reg);  in EmitFastOneByteArrayJoin()
4005   __ AdduAndCheckForOverflow(string_length, string_length, scratch1, scratch3);  in EmitFastOneByteArrayJoin()
4032   __ Subu(string_length, string_length, Operand(scratch1));  in EmitFastOneByteArrayJoin()
4039   __ AdduAndCheckForOverflow(string_length, string_length, scratch2, scratch3);  in EmitFastOneByteArrayJoin()
4041   __ SmiUntag(string_length);  in EmitFastOneByteArrayJoin()
4054   __ AllocateOneByteString(result, string_length, scratch1, scratch2,  in EmitFastOneByteArrayJoin()
4083   __ lw(string_length, FieldMemOperand(string, String::kLengthOffset));  in EmitFastOneByteArrayJoin()
4084   __ SmiUntag(string_length);  in EmitFastOneByteArrayJoin()
4086   __ CopyBytes(string, result_pos, string_length, scratch1);  in EmitFastOneByteArrayJoin()
4115   __ lw(string_length, FieldMemOperand(string, String::kLengthOffset));  in EmitFastOneByteArrayJoin()
4116   __ SmiUntag(string_length);  in EmitFastOneByteArrayJoin()
4118   __ CopyBytes(string, result_pos, string_length, scratch1);  in EmitFastOneByteArrayJoin()
4134   __ lw(string_length, FieldMemOperand(separator, String::kLengthOffset));  in EmitFastOneByteArrayJoin()
4135   __ SmiUntag(string_length);  in EmitFastOneByteArrayJoin()
4139   __ CopyBytes(string, result_pos, string_length, scratch1);  in EmitFastOneByteArrayJoin()
4144   __ lw(string_length, FieldMemOperand(string, String::kLengthOffset));  in EmitFastOneByteArrayJoin()
4145   __ SmiUntag(string_length);  in EmitFastOneByteArrayJoin()
4147   __ CopyBytes(string, result_pos, string_length, scratch1);  in EmitFastOneByteArrayJoin()