[Bug middle-end/53408] [4.6/4.7 Regression] ICE in get_initial_def_for_induction, at tree-vect-loop.c:3222

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53408

--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-05-22 
10:46:25 UTC ---
Author: rguenth
Date: Tue May 22 10:46:21 2012
New Revision: 187770

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=187770
Log:
2012-05-22  Richard Guenther  <rguent...@suse.de>

    PR tree-optimization/53408
    * tree-vect-loop.c (vectorizable_induction): Properly check
    the restriction that we cannot handle induction results from
    the inner loop outside of the outer loop.

    * gcc.dg/torture/pr53408.c: New testcase.

Added:
    branches/gcc-4_7-branch/gcc/testsuite/gcc.dg/torture/pr53408.c
Modified:
    branches/gcc-4_7-branch/gcc/ChangeLog
    branches/gcc-4_7-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_7-branch/gcc/tree-vect-loop.c