[Bug tree-optimization/84933] [8 Regression] ICE in set_value_range, at tree-vrp.c:288 since r257852

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84933

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Mar 19 14:11:05 2018
New Revision: 258646

URL: https://gcc.gnu.org/viewcvs?rev=258646&root=gcc&view=rev
Log:
2018-03-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/84933
        * tree-vrp.c (set_and_canonicalize_value_range): Treat out-of-bound
        values as -INF/INF when canonicalizing an ANTI_RANGE to a RANGE.

        * g++.dg/pr84933.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/pr84933.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c