optimization/10462: -fssa-dce ICE

[Steven Bosscher]

Op wo 23-04-2003, om 16:41 schreef Diego Novillo:
> On Wed, 2003-04-23@10:28, bangerth@dealii.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