[Bug tree-optimization/81118] [8 Regression] ice in remove_redundant_iv_tests

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81118

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Jun 19 15:08:02 2017
New Revision: 249374

URL: https://gcc.gnu.org/viewcvs?rev=249374&root=gcc&view=rev
Log:
2017-06-19  Richard Biener  <rguent...@suse.de>

        PR middle-end/81118
        * tree-cfgcleanup.c (cleanup_tree_cfg_noloop): Clear niter
        estimates if we changed anything.

        * gcc.dg/torture/pr81118.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr81118.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-cfgcleanup.c