diff options
Diffstat (limited to 'gcc/regclass.c')
| -rw-r--r-- | gcc/regclass.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/regclass.c b/gcc/regclass.c index be78332546e..20b0b8a9824 100644 --- a/gcc/regclass.c +++ b/gcc/regclass.c @@ -998,8 +998,10 @@ record_reg_classes (n_alts, n_ops, ops, modes, constraints, insn) instruction. */ this_op_costs[i] = this_op_costs[j]; - if (! find_reg_note (insn, REG_DEAD, op)) - alt_cost += 2; + if (! (GET_CODE (op) == REG && rtx_equal_p (op, ops[j]))) + /* No cost if both are the same pseudo reg. */ + if (! find_reg_note (insn, REG_DEAD, op)) + alt_cost += 2; /* This is in place of ordinary cost computation for this operand, so skip to the end of the |