Re: optimization/10462: -fssa-dce ICE

[Steven Bosscher <s dot bosscher at student dot tudelft dot nl>]

The following reply was made to PR optimization/10462; it has been noted by GNATS.

From: Steven Bosscher <s dot bosscher at student dot tudelft dot nl>
To: Diego Novillo <dnovillo at redhat dot com>
Cc: bangerth at dealii dot org, davh at diku dot dk, gcc-bugs at gcc dot gnu dot org,
	gcc-prs at gcc dot gnu dot org, nobody at gcc dot gnu dot org,
	"gcc-gnats at gcc dot gnu dot org" <gcc-gnats at gcc dot gnu dot org>
Subject: Re: optimization/10462: -fssa-dce ICE
Date: 23 Apr 2003 18:08:40 +0200

 Op wo 23-04-2003, om 16:41 schreef Diego Novillo:
 > On Wed, 2003-04-23 at 10:28, bangerth at dealii dot org wrote:
 > > Synopsis: -fssa-dce ICE
 > > 
 > > State-Changed-From-To: open->analyzed
 > > State-Changed-By: bangerth
 > > State-Changed-When: Wed Apr 23 14:28:23 2003
 > > State-Changed-Why:
 > >     Confirmed:
 > >     
 > >     g/x> /home/bangerth/bin/gcc-3.3-pre/bin/c++ -fssa -fssa-dce -O2 -c loadbalanced.ii
 > >     In file included from loadbalanced.cc:40:
 > >     error.hh: In function `std::ostream& errors::operator<<(std::ostream&, const
 > >        errors::stderror&)':
 > >     error.hh:61: internal compiler error: RTL flag check: INSN_DEAD_CODE_P used
 > >        with unexpected rtx code `note' in mark_all_insn_unnecessary,@ssa-dce.c:
 > >        450
 > > 
 > > http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10462
 > >.
 > Isn't it time we remove -fssa?
 
 For this particular issue, a patch by Jose Renau was applied on
 mainline, but Mark doesn't want to fix it for 3.3.  See PR 9037.
 
 Greetz
 Steven