diff options
| author | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-11-17 21:20:20 +0000 |
|---|---|---|
| committer | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-11-17 21:20:20 +0000 |
| commit | 3c28a3eb1de65dfec722f0064f1c9cdba9f65dbf (patch) | |
| tree | 61d46e5bda78dd754da2636648d6443514972bea /gcc/regrename.c | |
| parent | 79ff98c55e1b0b16aea12edd183f9c9eb8f73220 (diff) | |
| download | gcc-3c28a3eb1de65dfec722f0064f1c9cdba9f65dbf.tar.gz | |
PR target/66785
* regrename.c (record_operand_use): Keep track of failed operands
and stop appending if we see any.
* regrename.h (struct operand_rr_info): Add a failed field and shrink
n_chains to short.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@230499 138bc75d-0d04-0410-961f-82ee72b054a4
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 d41410a9348..e126fcc7403 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; |