optab otheroptab = binoptab == add_optab ? sub_optab : add_optab;
int nwords = GET_MODE_BITSIZE (mode) / BITS_PER_WORD;
rtx carry_in, carry_out;
+ rtx xop0, xop1;
/* We can handle either a 1 or -1 value for the carry. If STORE_FLAG
value is one of those, use it. Otherwise, use 1 since it is the
#endif
/* Prepare the operands. */
- op0 = force_reg (mode, op0);
- op1 = force_reg (mode, op1);
+ xop0 = force_reg (mode, op0);
+ xop1 = force_reg (mode, op1);
if (target == 0 || GET_CODE (target) != REG
- || target == op0 || target == op1)
+ || target == xop0 || target == xop1)
target = gen_reg_rtx (mode);
/* Do the actual arithmetic. */
{
int index = (WORDS_BIG_ENDIAN ? nwords - i - 1 : i);
rtx target_piece = operand_subword (target, index, 1, mode);
- rtx op0_piece = operand_subword_force (op0, index, mode);
- rtx op1_piece = operand_subword_force (op1, index, mode);
+ rtx op0_piece = operand_subword_force (xop0, index, mode);
+ rtx op1_piece = operand_subword_force (xop1, index, mode);
rtx x;
/* Main add/subtract of the input operands. */
temp = emit_move_insn (target, target);
REG_NOTES (temp) = gen_rtx (EXPR_LIST, REG_EQUAL,
- gen_rtx (binoptab->code, mode, op0, op1),
+ gen_rtx (binoptab->code, mode, xop0, xop1),
REG_NOTES (temp));
return target;
}