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re PR testsuite/69007 (test cases gcc.dg/vect/vect-reduc-dot-s8a.c fails starting with r231815) 

2016-01-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/69007
	* tree-vect-patterns.c (vect_vect_recog_func_ptrs): Move
	widen_sum after dot_prod and sad.

From-SVN: r232262
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Richard Biener 2016-01-12 11:39:54 +00:00 committed by Richard Biener
parent 2935d99414
commit 5b723b6806
2 changed files with 11 additions and 1 deletions
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gcc/ChangeLog
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@ -1,3 +1,9 @@
2016-01-12 Richard Biener <rguenther@suse.de>
PR tree-optimization/69007
* tree-vect-patterns.c (vect_vect_recog_func_ptrs): Move
widen_sum after dot_prod and sad.
2016-01-12 Richard Biener <rguenther@suse.de>
PR tree-optimization/69168

6
gcc/tree-vect-patterns.c
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@ -75,11 +75,15 @@ struct vect_recog_func
vect_recog_func_ptr fn;
const char *name;
};
/* Note that ordering matters - the first pattern matching on a stmt
is taken which means usually the more complex one needs to preceed
the less comples onex (widen_sum only after dot_prod or sad for example). */
static vect_recog_func vect_vect_recog_func_ptrs[NUM_PATTERNS] = {
{ vect_recog_widen_mult_pattern, "widen_mult" },
{ vect_recog_widen_sum_pattern, "widen_sum" },
{ vect_recog_dot_prod_pattern, "dot_prod" },
{ vect_recog_sad_pattern, "sad" },
{ vect_recog_widen_sum_pattern, "widen_sum" },
{ vect_recog_pow_pattern, "pow" },
{ vect_recog_widen_shift_pattern, "widen_shift" },
{ vect_recog_over_widening_pattern, "over_widening" },