[Bug tree-optimization/88074] [7/8/9 Regression] g++ hangs on math expression

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88074

--- Comment #18 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Nov 20 12:18:58 2018
New Revision: 266313

URL: https://gcc.gnu.org/viewcvs?rev=266313&root=gcc&view=rev
Log:
2018-11-20  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/88074
        * tree-ssa-dom.c (pass_dominator::execute): Do not walk
        backedges.

        * gcc.dg/pr88074.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/gomp/pr88105.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-dom.c