- goal_alternative[i] = this_alternative[i];
- goal_alternative_win[i] = this_alternative_win[i];
- goal_alternative_match_win[i] = this_alternative_match_win[i];
- goal_alternative_offmemok[i] = this_alternative_offmemok[i];
- goal_alternative_matches[i] = this_alternative_matches[i];
- goal_alternative_earlyclobber[i]
- = this_alternative_earlyclobber[i];
+ for (i = 0; i < noperands; i++)
+ small_class_operands_num
+ += SMALL_REGISTER_CLASS_P (this_alternative[i]) ? 1 : 0;
+ if (best > losers
+ || (best == losers
+ /* If the cost of the reloads is the same,
+ prefer alternative which requires minimal
+ number of small register classes for the
+ operands. This improves chances of reloads
+ for insn requiring small register
+ classes. */
+ && (small_class_operands_num
+ < best_small_class_operands_num)))
+ change_p = true;
+ }
+ if (change_p)
+ {
+ for (i = 0; i < noperands; i++)
+ {
+ goal_alternative[i] = this_alternative[i];
+ goal_alternative_win[i] = this_alternative_win[i];
+ goal_alternative_match_win[i]
+ = this_alternative_match_win[i];
+ goal_alternative_offmemok[i]
+ = this_alternative_offmemok[i];
+ goal_alternative_matches[i] = this_alternative_matches[i];
+ goal_alternative_earlyclobber[i]
+ = this_alternative_earlyclobber[i];
+ }
+ goal_alternative_swapped = swapped;
+ best = losers;
+ best_small_class_operands_num = small_class_operands_num;
+ goal_alternative_number = this_alternative_number;
+ goal_earlyclobber = this_earlyclobber;