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| author | Steven Bosscher <steven@gcc.gnu.org> | 2012-11-11 20:29:11 +0000 |
|---|---|---|
| committer | Steven Bosscher <steven@gcc.gnu.org> | 2012-11-11 20:29:11 +0000 |
| commit | 159520acf76cf7159e171370e06c7a6dd51d594d (patch) | |
| tree | 543961f5fa17d2845bed07701ce91e092266962c /gcc/postreload.c | |
| parent | 18abab9fee744f3e47654b4e7efbaeb6bfbf9574 (diff) | |
| download | gcc-159520acf76cf7159e171370e06c7a6dd51d594d.zip gcc-159520acf76cf7159e171370e06c7a6dd51d594d.tar.gz gcc-159520acf76cf7159e171370e06c7a6dd51d594d.tar.bz2 | |
re PR middle-end/55263 (ICE: pre_and_rev_post_order_compute, at cfganal.c:875 with -O -fgcse-after-reload -fnon-call-exceptions)
gcc/
PR middle-end/55263
* postreload.c (rest_of_handle_postreload): With non-call exceptions,
if edges are purged call cleanup_cfg to remove unreachable blocks.
testsuite/
PR middle-end/55263
* g++.dg/pr55263.C: New test.
From-SVN: r193412
Diffstat (limited to 'gcc/postreload.c')
| -rw-r--r-- | gcc/postreload.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/postreload.c b/gcc/postreload.c index cafcf0f..32c5b5f 100644 --- a/gcc/postreload.c +++ b/gcc/postreload.c @@ -2289,8 +2289,9 @@ rest_of_handle_postreload (void) reload_cse_regs (get_insns ()); /* Reload_cse_regs can eliminate potentially-trapping MEMs. Remove any EH edges associated with them. */ - if (cfun->can_throw_non_call_exceptions) - purge_all_dead_edges (); + if (cfun->can_throw_non_call_exceptions + && purge_all_dead_edges ()) + cleanup_cfg (0); return 0; } |