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| author | Jeff Law <law@redhat.com> | 2005-05-06 10:43:58 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2005-05-06 10:43:58 -0600 |
| commit | b8c1d4a1bce11dd9fad78ef63ec757aebaad3054 (patch) | |
| tree | 6d6df66aad3d07ccb0ac096747068ca17428c203 /gcc/tree-ssa-threadupdate.c | |
| parent | 7673b71ce98231709cd068e8ad2c9a3875d34d85 (diff) | |
| download | gcc-b8c1d4a1bce11dd9fad78ef63ec757aebaad3054.zip gcc-b8c1d4a1bce11dd9fad78ef63ec757aebaad3054.tar.gz gcc-b8c1d4a1bce11dd9fad78ef63ec757aebaad3054.tar.bz2 | |
re PR tree-optimization/21380 (ICE compiling with -O)
PR tree-optimization/21380
* tree-ssa-threadupdate.c (thread_through_all_blocks): Do not
thread through a block with no preds.
* gcc.c-torture/compile/pr21380.c: New test.
From-SVN: r99324
Diffstat (limited to 'gcc/tree-ssa-threadupdate.c')
| -rw-r--r-- | gcc/tree-ssa-threadupdate.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-ssa-threadupdate.c b/gcc/tree-ssa-threadupdate.c index 617467a..a5dc049 100644 --- a/gcc/tree-ssa-threadupdate.c +++ b/gcc/tree-ssa-threadupdate.c @@ -811,7 +811,8 @@ thread_through_all_blocks (void) FOR_EACH_BB (bb) { - if (bb_ann (bb)->incoming_edge_threaded) + if (bb_ann (bb)->incoming_edge_threaded + && EDGE_COUNT (bb->preds) > 0) { retval |= thread_block (bb); bb_ann (bb)->incoming_edge_threaded = false; |