[Bug target/54156] [4.8 Regression] New fail on AVX target: gcc.dg/vect/pr53773.c. 190010 vs revision 189996

[izamyatin at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54156

--- Comment #2 from Igor Zamyatin <izamyatin at gmail dot com> 2012-08-01 
15:57:42 UTC ---
Author: wschmidt <wschmidt@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Tue Jul 31 12:25:04 2012 +0000

    gcc:

    2012-07-31  Bill Schmidt  <wschm...@linux.ibm.com>

        PR tree-optimization/53773
        * tree-vectorizer.h (struct _loop_vec_info): Add operands_swapped.
        (LOOP_VINFO_OPERANDS_SWAPPED): New macro.
        * tree-vect-loop.c (new_loop_vec_info): Initialize
        LOOP_VINFO_OPERANDS_SWAPPED field.
        (destroy_loop_vec_info): Restore canonical form.
        (vect_is_slp_reduction): Set LOOP_VINFO_OPERANDS_SWAPPED field.
        (vect_is_simple_reduction_1): Likewise.

    gcc/testsuite:

    2012-07-31  Bill Schmidt  <wschm...@linux.ibm.com>

        PR tree-optimization/53773
        * testsuite/gcc.dg/vect/pr53773.c: New test

 Seems for x86 output is different