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| author | Vladimir Makarov <vmakarov@redhat.com> | 2019-04-01 16:18:30 +0000 |
|---|---|---|
| committer | Vladimir Makarov <vmakarov@gcc.gnu.org> | 2019-04-01 16:18:30 +0000 |
| commit | 0d2a576a1417b8d4526d369fef1d87cee2c49f99 (patch) | |
| tree | 0daf295fe0fc9f597e05112c5233db6a08e137e4 /gcc/ira-costs.c | |
| parent | a0802144bb4c0e60a110c6d5d8af22cb035da9c9 (diff) | |
re PR rtl-optimization/89865 (FAIL: gcc.target/i386/pr49095.c scan-assembler-times \\\\), % 45)
2019-04-01 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/89865
* ira-costs.c (process_bb_node_for_hard_reg_moves): Skip hard
register if it is a part of small class.
From-SVN: r270060
Diffstat (limited to 'gcc/ira-costs.c')
| -rw-r--r-- | gcc/ira-costs.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/ira-costs.c b/gcc/ira-costs.c index a17dae3302c..c7feaba3718 100644 --- a/gcc/ira-costs.c +++ b/gcc/ira-costs.c @@ -2107,6 +2107,13 @@ process_bb_node_for_hard_reg_moves (ira_loop_tree_node_t loop_tree_node) } else continue; + if (reg_class_size[(int) REGNO_REG_CLASS (hard_regno)] + == (ira_reg_class_max_nregs + [REGNO_REG_CLASS (hard_regno)][(int) ALLOCNO_MODE(a)])) + /* If the class can provide only one hard reg to the allocno, + we processed the insn record_operand_costs already and we + actually updated the hard reg cost there. */ + continue; rclass = ALLOCNO_CLASS (a); if (! TEST_HARD_REG_BIT (reg_class_contents[rclass], hard_regno)) continue; |