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| author | Richard Biener <rguenther@suse.de> | 2014-11-26 15:16:24 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2014-11-26 15:16:24 +0000 |
| commit | 5721768d285b6b474a2b73e42dcec156e52ef13d (patch) | |
| tree | bb3f0ca8a43d88381e787e98d5d969b250a59a12 /gcc/tree-data-ref.c | |
| parent | aaf176ca1896931ac8777c0fd527b0198032b38e (diff) | |
| download | gcc-5721768d285b6b474a2b73e42dcec156e52ef13d.zip gcc-5721768d285b6b474a2b73e42dcec156e52ef13d.tar.gz gcc-5721768d285b6b474a2b73e42dcec156e52ef13d.tar.bz2 | |
re PR tree-optimization/63738 (ssa corruption when compiled with -O3)
2014-11-26 Richard Biener <rguenther@suse.de>
PR middle-end/63738
* tree-data-ref.c (split_constant_offset_1): Do not follow
SSA edges for SSA names with SSA_NAME_OCCURS_IN_ABNORMAL_PHI.
* gcc.dg/torture/pr63738.c: New testcase.
From-SVN: r218088
Diffstat (limited to 'gcc/tree-data-ref.c')
| -rw-r--r-- | gcc/tree-data-ref.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/tree-data-ref.c b/gcc/tree-data-ref.c index 909751c..387da6c 100644 --- a/gcc/tree-data-ref.c +++ b/gcc/tree-data-ref.c @@ -674,6 +674,9 @@ split_constant_offset_1 (tree type, tree op0, enum tree_code code, tree op1, case SSA_NAME: { + if (SSA_NAME_OCCURS_IN_ABNORMAL_PHI (op0)) + return false; + gimple def_stmt = SSA_NAME_DEF_STMT (op0); enum tree_code subcode; |