[Bug tree-optimization/80713] [8 Regression] recent crash in update_dep_bb

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80713

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri May 12 10:54:29 2017
New Revision: 247963

URL: https://gcc.gnu.org/viewcvs?rev=247963&root=gcc&view=rev
Log:
2017-05-12  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/80713
        * tree-ssa-pre.c (remove_dead_inserted_code): Clear
        inserted_exprs bit for not removed stmts.

        * gcc.dg/torture/pr80713.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr80713.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-pre.c