Re: optimization/9357: [3.2/3.3/3.4 regression] SegFault with -fssa -funroll-loops -fprofile-arcs

[Andreas Jaeger <aj at suse dot de>]

The following reply was made to PR optimization/9357; it has been noted by GNATS.

From: Andreas Jaeger <aj at suse dot de>
To: janis187 at us dot ibm dot com
Cc: gcc-gnats at gcc dot gnu dot org, gcc-bugs at gcc dot gnu dot org, nobody at gcc dot gnu dot org,
	gcc-prs at gcc dot gnu dot org, maddinp at yahoo dot de
Subject: Re: optimization/9357: [3.2/3.3/3.4 regression] SegFault with -fssa  
 -funroll-loops -fprofile-arcs
Date: Mon, 24 Feb 2003 17:46:31 +0100

 Janis Johnson <janis187 at us dot ibm dot com> writes:
 
 > The regression showed up with this patch:
 >
 > Sat Oct 27 12:12:09 CEST 2001  Jan Hubicka  <jh at suse dot cz>
 >
 >         * cfgcleanup.c (merge_blocks_move_predecessor_nojumps,
 >         merge_blocks_move_successors_nojumps): Set BB_UPDATE_LIFE.
 >         (merge_blocks): Properly udpate life after making edge nonfallthru.
 >         * cfgrtl.c (merge_blocks_nomove): Update global_live_at_end.
 >
 > http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9357
 
 This might be the case but -fssa is currently broken AFAIK and not
 supported really, so if it cannot get reproduced without -fssa, I
 really susspect a SSA issue,
 
 Andreas
 -- 
  Andreas Jaeger
   SuSE Labs aj at suse dot de
    private aj at arthur dot inka dot de
     http://www.suse.de/~aj