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gcc.gnu.org Git - gcc.git/commit
re PR tree-optimization/67800 (Missed vectorization opportunity on x86 (DOT_PROD_EXPR in non-reduction))
2015-12-03 Richard Biener <rguenther@suse.de>
PR tree-optimization/67800
PR tree-optimization/68333
* tree-vect-patterns.c (vect_recog_dot_prod_pattern): Restore
restriction to reduction contexts but allow SLP reductions as well.
(vect_recog_sad_pattern): Likewise.
(vect_recog_widen_sum_pattern): Likewise.
* gcc.target/i386/vect-pr67800.c: New testcase.
From-SVN: r231221
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