[Bug tree-optimization/78788] [7 Regression] ICE (segfault) on s390x-linux-gnu

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78788

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Dec 14 08:33:12 2016
New Revision: 243631

URL: https://gcc.gnu.org/viewcvs?rev=243631&root=gcc&view=rev
Log:
2016-12-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/78788
        * tree-vrp.c (set_value_range): Allow [-INF(OVF), +INF(OVF)].
        (set_and_canonicalize_value_range): Do not drop the above to
        VARYING.

        * gcc.dg/torture/pr78788.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr78788.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c