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| author | Richard Biener <rguenther@suse.de> | 2019-10-30 09:21:09 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2019-10-30 09:21:09 +0000 |
| commit | b4673569c2a8b974e3f84ffaa547941c5d40cfe5 (patch) | |
| tree | 6d7ec270bf5b9c3eba3ecbbab321a2c4ef3ef3b1 /gcc/tree-ssa-loop-ivopts.c | |
| parent | 91c4891af8f7edd32689a9917db5ae81f4ab0c72 (diff) | |
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re PR tree-optimization/65930 (Reduction with sign-change not handled)
2019-10-30 Richard Biener <rguenther@suse.de>
PR tree-optimization/65930
* tree-vect-loop.c (vect_is_simple_reduction): For reduction
chains also allow a leading and trailing conversion.
* tree-vect-slp.c (vect_get_and_check_slp_defs): Handle
intermediate reduction chains.
(vect_analyze_slp_instance): Likewise. Build a SLP
node for a trailing conversion manually.
* gcc.dg/vect/pr65930-2.c: New testcase.
From-SVN: r277603
Diffstat (limited to 'gcc/tree-ssa-loop-ivopts.c')
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