[Bug middle-end/54520] [4.8 Regression] ice in merge_latch_edges with -O3

[markus at trippelsdorf dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54520

Markus Trippelsdorf <markus at trippelsdorf dot de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rguenth at gcc dot gnu.org

--- Comment #2 from Markus Trippelsdorf <markus at trippelsdorf dot de> 
2012-09-08 06:16:03 UTC ---
Started with r190918:

bb722af402cd2c6e372f64e33f465bff2228b975 is the first bad commit
commit bb722af402cd2c6e372f64e33f465bff2228b975
Author: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Tue Sep 4 09:28:58 2012 +0000

    2012-09-04  Richard Guenther  <rguent...@suse.de>

        PR tree-optimization/54458
        * tree-ssa-threadupdate.c (thread_through_loop_header): If we
        turn the loop into one with multiple latches mark it so.