[Bug tree-optimization/59358] [4.8/4.9 Regression] Infinite loop generated with >=O2

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59358

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Dec  2 22:44:05 2013
New Revision: 205608

URL: http://gcc.gnu.org/viewcvs?rev=205608&root=gcc&view=rev
Log:
    PR tree-optimization/59358
    * tree-vrp.c (union_ranges): To check for the partially
    overlapping ranges or adjacent ranges, also compare *vr0max
    with vr1max.

    * gcc.c-torture/execute/pr59358.c: New test.

Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_8-branch/gcc/tree-vrp.c