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re PR tree-optimization/77444 (Bogus assignments in cand_value_at)

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PR tree-optimization/77444
	* tree-ssa-loop-ivopts.c (cand_value_at): For pointers use sizetype
	as steptype, remove redundant initialization.

Co-Authored-By: Richard Biener <rguenther@suse.de>

From-SVN: r239962
This commit is contained in:
Jakub Jelinek 2016-09-02 19:12:27 +02:00 • committed by Jakub Jelinek
parent 94087e88e0
commit bad9b2889a
2 changed files with 10 additions and 2 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2016-09-02 Jakub Jelinek <jakub@redhat.com>
Richard Biener <rguenth@suse.de>
PR tree-optimization/77444
* tree-ssa-loop-ivopts.c (cand_value_at): For pointers use sizetype
as steptype, remove redundant initialization.
2016-09-02 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/77396

5
gcc/tree-ssa-loop-ivopts.c
View file

@ -5168,10 +5168,11 @@ cand_value_at (struct loop *loop, struct iv_cand *cand, gimple *at, tree niter,
aff_tree step, delta, nit;
struct iv *iv = cand->iv;
tree type = TREE_TYPE (iv->base);
tree steptype = type;
tree steptype;
if (POINTER_TYPE_P (type))
steptype = sizetype;
steptype = unsigned_type_for (type);
else
steptype = unsigned_type_for (type);
tree_to_aff_combination (iv->step, TREE_TYPE (iv->step), &step);
aff_combination_convert (&step, steptype);