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| author | H.J. Lu <hongjiu.lu@intel.com> | 2010-10-03 05:39:32 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2010-10-02 22:39:32 -0700 |
| commit | 888a22d085105905fc3b951c431e7f9e1f45d158 (patch) | |
| tree | fd1eea306f2f5ca977aaaa32728dc316b851f9d6 /gcc/tree-optimize.c | |
| parent | 128dbdd219963f41e167c349653ba3e628775fff (diff) | |
| download | gcc-888a22d085105905fc3b951c431e7f9e1f45d158.zip gcc-888a22d085105905fc3b951c431e7f9e1f45d158.tar.gz gcc-888a22d085105905fc3b951c431e7f9e1f45d158.tar.bz2 | |
Disallow negative steps in vectorizer.
gcc/
2010-10-02 H.J. Lu <hongjiu.lu@intel.com>
PR tree-optimization/45720
PR tree-optimization/45764
* tree-vect-data-refs.c (vect_analyze_data_ref_access):
Don't accept backwards consecutive accesses.
(vect_create_data_ref_ptr): Disallow negative steps.
* tree-vect-stmts.c (vectorizable_store): Allow negative steps.
(perm_mask_for_reverse): Removed.
(reverse_vec_elements): Likewise.
(vectorizable_load): Don't hanle negative steps.
gcc/testsuite/
2010-10-02 H.J. Lu <hongjiu.lu@intel.com>
PR tree-optimization/45720
PR tree-optimization/45764
* g++.dg/torture/pr45764.C: New.
* gcc.dg/vect/pr43432.c: Xfail.
* gcc.dg/vect/vect-114.c: Likewise.
* gcc.dg/vect/vect-15.c: Likewise.
From-SVN: r164914
Diffstat (limited to 'gcc/tree-optimize.c')
0 files changed, 0 insertions, 0 deletions