diff options
Diffstat (limited to 'gcc/regrename.c')
| -rw-r--r-- | gcc/regrename.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/regrename.c b/gcc/regrename.c index d41410a..e126fcc 100644 --- a/gcc/regrename.c +++ b/gcc/regrename.c @@ -203,8 +203,13 @@ mark_conflict (struct du_head *chains, unsigned id) static void record_operand_use (struct du_head *head, struct du_chain *this_du) { - if (cur_operand == NULL) + if (cur_operand == NULL || cur_operand->failed) return; + if (head->cannot_rename) + { + cur_operand->failed = true; + return; + } gcc_assert (cur_operand->n_chains < MAX_REGS_PER_ADDRESS); cur_operand->heads[cur_operand->n_chains] = head; cur_operand->chains[cur_operand->n_chains++] = this_du; |