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| author | Richard Guenther <rguenther@suse.de> | 2012-04-12 11:38:47 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2012-04-12 11:38:47 +0000 |
| commit | 5f1fab5819256a0a30779d8d0c2fffc3ed2ee9c2 (patch) | |
| tree | 309556804f1e89c251beb3a6c838fd3141487079 /gcc/tree-ssa.c | |
| parent | e5b332cdb894baa96b7dc83b69140b3106fd5153 (diff) | |
| download | gcc-5f1fab5819256a0a30779d8d0c2fffc3ed2ee9c2.zip gcc-5f1fab5819256a0a30779d8d0c2fffc3ed2ee9c2.tar.gz gcc-5f1fab5819256a0a30779d8d0c2fffc3ed2ee9c2.tar.bz2 | |
re PR tree-optimization/52943 (likely wrong code bug caused by predictive commoning)
2012-04-12 Richard Guenther <rguenther@suse.de>
PR tree-optimization/52943
* tree-chrec.h (chrec_is_positive): Remove.
* tree-scalar-evolution.c (chrec_is_positive): Move ...
* tree-data-ref.c (chrec_is_positive): ... here. Make static.
Return false for a constant zero instead of negative.
(analyze_siv_subscript_cst_affine): Handle zero difference
in the initial condition explicitely.
* gcc.dg/torture/pr52943.c: New testcase.
From-SVN: r186374
Diffstat (limited to 'gcc/tree-ssa.c')
0 files changed, 0 insertions, 0 deletions