diff options
| author | Richard Guenther <rguenther@suse.de> | 2010-10-01 12:07:47 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2010-10-01 12:07:47 +0000 |
| commit | 0d228a5255e2e2917cc8807f427221a36a583f4b (patch) | |
| tree | 974de03023548fefebe5bb8532c965356aca9565 /gcc/tree-eh.c | |
| parent | 33f49367016b4bf543de30324c580a317970b5e8 (diff) | |
| download | gcc-0d228a5255e2e2917cc8807f427221a36a583f4b.zip gcc-0d228a5255e2e2917cc8807f427221a36a583f4b.tar.gz gcc-0d228a5255e2e2917cc8807f427221a36a583f4b.tar.bz2 | |
re PR middle-end/45854 (ICE in redirect_eh_edge_1, at tree-eh.c:2131)
2010-10-01 Richard Guenther <rguenther@suse.de>
PR tree-optimization/45854
* tree-eh.c (cleanup_empty_eh): Avoid degenerate case.
* g++.dg/torture/pr45854.C: New testcase.
From-SVN: r164881
Diffstat (limited to 'gcc/tree-eh.c')
| -rw-r--r-- | gcc/tree-eh.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/tree-eh.c b/gcc/tree-eh.c index 2174276..8a99ad3 100644 --- a/gcc/tree-eh.c +++ b/gcc/tree-eh.c @@ -3743,7 +3743,13 @@ cleanup_empty_eh (eh_landing_pad lp) /* If the block is totally empty, look for more unsplitting cases. */ if (gsi_end_p (gsi)) - return cleanup_empty_eh_unsplit (bb, e_out, lp); + { + /* For the degenerate case of an infinite loop bail out. */ + if (e_out->dest == bb) + return false; + + return cleanup_empty_eh_unsplit (bb, e_out, lp); + } /* The block should consist only of a single RESX statement. */ resx = gsi_stmt (gsi); |