[Bug tree-optimization/71132] [7 Regression] gcc ICE at -O3 on valid code on x86_64-linux-gnu with “seg fault”

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71132

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2016-05-16
                 CC|                            |mpolacek at gcc dot gnu.org
   Target Milestone|---                         |7.0
            Summary|gcc ICE at -O3 on valid     |[7 Regression] gcc ICE at
                   |code on x86_64-linux-gnu    |-O3 on valid code on
                   |with “seg fault”            |x86_64-linux-gnu with “seg
                   |                            |fault”
     Ever confirmed|0                           |1

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with:

commit f52a3ef65a923faa1c22a8c04cda64ed8f0b2234
Author: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Thu May 12 07:18:58 2016 +0000

    2016-05-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70986
        * cfganal.c: Include cfgloop.h.
        (dfs_find_deadend): Prefer to take edges exiting loops.

        * gcc.dg/torture/pr70986-1.c: New testcase.
        * gcc.dg/torture/pr70986-2.c: Likewise.
        * gcc.dg/torture/pr70986-3.c: Likewise.


    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@236158
138bc75d-0d04-0410-961f-82ee72b054a4