[Bug tree-optimization/61335] [4.10 Regression] wrong code with -O2 -fbounds-check

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61335

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed May 28 11:07:06 2014
New Revision: 211012

URL: http://gcc.gnu.org/viewcvs?rev=211012&root=gcc&view=rev
Log:
2014-05-28  Richard Biener  <rguent...@suse.de>

    PR tree-optimization/61335
    * tree-vrp.c (vrp_visit_phi_node): If the compare of old and
    new range fails, drop to varying.

    * gfortran.dg/pr61335.f90: New testcase.

Added:
    trunk/gcc/testsuite/gfortran.dg/pr61335.f90
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c