[Bug tree-optimization/57396] [4.8 Regression] Wrong code with -fpredictive-commoning in Fortran double-loop

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57396

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Aug 29 13:11:01 2013
New Revision: 202073

URL: http://gcc.gnu.org/viewcvs?rev=202073&root=gcc&view=rev
Log:
    Backported from mainline
    2013-05-27  Richard Biener  <rguent...@suse.de>

    PR tree-optimization/57396
    * tree-affine.c (double_int_constant_multiple_p): Properly
    return false for val == 0 and div != 0.

    * gfortran.fortran-torture/execute/pr57396.f90: New testcase.

Added:
   
branches/gcc-4_8-branch/gcc/testsuite/gfortran.fortran-torture/execute/pr57396.f90
Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_8-branch/gcc/tree-affine.c