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| author | Jakub Jelinek <jakub@redhat.com> | 2008-09-02 21:13:47 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2008-09-02 21:13:47 +0200 |
| commit | 833ee764e77be266b6383feb9fd6cabf40a539b8 (patch) | |
| tree | bc95697242e4ceed489101dcfdecd02359c3dcbd /gcc/tree-cfg.c | |
| parent | c83c7e7e47f2a1618ea5ab1e6fc78df66b22f285 (diff) | |
| download | gcc-833ee764e77be266b6383feb9fd6cabf40a539b8.zip gcc-833ee764e77be266b6383feb9fd6cabf40a539b8.tar.gz gcc-833ee764e77be266b6383feb9fd6cabf40a539b8.tar.bz2 | |
re PR tree-optimization/36766 (natGC.cc:229: internal compiler error: Segmentation fault)
PR tree-optimization/36766
* tree-cfg.c (gimple_purge_all_dead_eh_edges): Do nothing
for already removed basic blocks.
* g++.dg/tree-ssa/pr36766.C: New test.
From-SVN: r139908
Diffstat (limited to 'gcc/tree-cfg.c')
| -rw-r--r-- | gcc/tree-cfg.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c index f63e676..6bd8a06 100644 --- a/gcc/tree-cfg.c +++ b/gcc/tree-cfg.c @@ -6560,7 +6560,13 @@ gimple_purge_all_dead_eh_edges (const_bitmap blocks) EXECUTE_IF_SET_IN_BITMAP (blocks, 0, i, bi) { - changed |= gimple_purge_dead_eh_edges (BASIC_BLOCK (i)); + basic_block bb = BASIC_BLOCK (i); + + /* Earlier gimple_purge_dead_eh_edges could have removed + this basic block already. */ + gcc_assert (bb || changed); + if (bb != NULL) + changed |= gimple_purge_dead_eh_edges (bb); } return changed; |