diff options
Diffstat (limited to 'gcc/ira.c')
| -rw-r--r-- | gcc/ira.c | 33 |
1 files changed, 2 insertions, 31 deletions
diff --git a/gcc/ira.c b/gcc/ira.c index 076c53231f3..26d017e0820 100644 --- a/gcc/ira.c +++ b/gcc/ira.c @@ -1770,34 +1770,6 @@ setup_prohibited_mode_move_regs (void) -/* Return TRUE if the operand constraint STR is commutative. */ -static bool -commutative_constraint_p (const char *str) -{ - int c; - - alternative_mask enabled = recog_data.enabled_alternatives; - for (;;) - { - c = *str; - if (c == '\0') - break; - str += CONSTRAINT_LEN (c, str); - if (c == '#') - enabled &= ~ALTERNATIVE_BIT (0); - else if (c == ',') - enabled >>= 1; - else if (enabled & 1) - { - /* Usually `%' is the first constraint character but the - documentation does not require this. */ - if (c == '%') - return true; - } - } - return false; -} - /* Setup possible alternatives in ALTS for INSN. */ void ira_setup_alts (rtx insn, HARD_REG_SET &alts) @@ -2099,10 +2071,9 @@ ira_get_dup_out_num (int op_num, HARD_REG_SET &alts) if (use_commut_op_p) break; use_commut_op_p = true; - if (commutative_constraint_p (recog_data.constraints[op_num])) + if (recog_data.constraints[op_num][0] == '%') str = recog_data.constraints[op_num + 1]; - else if (op_num > 0 && commutative_constraint_p (recog_data.constraints - [op_num - 1])) + else if (op_num > 0 && recog_data.constraints[op_num - 1][0] == '%') str = recog_data.constraints[op_num - 1]; else break; |