https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66558

--- Comment #3 from alahay01 at gcc dot gnu.org ---
Author: alahay01
Date: Fri Nov 13 10:51:34 2015
New Revision: 230297

URL: https://gcc.gnu.org/viewcvs?rev=230297&root=gcc&view=rev
Log:
Optimize condition reductions where the result is an integer induction variable

2015-11-13  Alan Hayward <alan.hayw...@arm.com>

gcc/
        PR tree-optimization/66558
        * tree-vect-loop.c (is_integer_induction):Add.
        (vectorizable_reduction): Add integer induction checks.

gcc/testsuite/
        PR tree-optimization/66558
        * gcc.dg/vect/pr65947-1.c: Add checks.
        * gcc.dg/vect/pr65947-2.c: Add checks.
        * gcc.dg/vect/pr65947-3.c: Add checks.
        * gcc.dg/vect/pr65947-4.c: Add checks.
        * gcc.dg/vect/pr65947-5.c: Add checks.
        * gcc.dg/vect/pr65947-6.c: Add checks.
        * gcc.dg/vect/pr65947-10.c: Add checks.
        * gcc.dg/vect/pr65947-12.c: New test.
        * gcc.dg/vect/pr65947-13.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr65947-12.c
    trunk/gcc/testsuite/gcc.dg/vect/pr65947-13.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/vect/pr65947-1.c
    trunk/gcc/testsuite/gcc.dg/vect/pr65947-10.c
    trunk/gcc/testsuite/gcc.dg/vect/pr65947-2.c
    trunk/gcc/testsuite/gcc.dg/vect/pr65947-3.c
    trunk/gcc/testsuite/gcc.dg/vect/pr65947-4.c
    trunk/gcc/testsuite/gcc.dg/vect/pr65947-5.c
    trunk/gcc/testsuite/gcc.dg/vect/pr65947-6.c
    trunk/gcc/tree-vect-loop.c
    trunk/gcc/tree-vectorizer.h

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