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Date: Tue, 19 Nov 2002 18:24:00 -0000
Message-ID: <20021112225751.21877.qmail@sources.redhat.com>
To: gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org,
  kris.demuynck@esat.kuleuven.ac.be, nobody@gcc.gnu.org
From: reichelt@igpm.rwth-aachen.de
Reply-To: reichelt@igpm.rwth-aachen.de, gcc-bugs@gcc.gnu.org,
  gcc-prs@gcc.gnu.org, kris.demuynck@esat.kuleuven.ac.be, nobody@gcc.gnu.org,
  gcc-gnats@gcc.gnu.org
Subject: Re: optimization/8555: Internal compiler error in gen_split_1231
X-SW-Source: 2002-11/txt/msg00609.txt.bz2
List-Id: <gcc-prs.sourceware.org>

Synopsis: Internal compiler error in gen_split_1231

State-Changed-From-To: open->analyzed
State-Changed-By: reichelt
State-Changed-When: Tue Nov 12 14:57:50 2002
State-Changed-Why:
    Confirmed.
    gcc 3.1 and mainline are not affected, but gcc 3.2 and the
    3.2.1 prerelease produce an ICE.
    
    Here's a shorter example that triggers the bug (just compile with
    gcc -march=pentium3 -O -ffast-math -funroll-loops -c)
    
    -------------------------snip here-----------------------
    float foo (float *a)
    {
      int i, j;
      float x=a[j=i-1], y;
    
      for ( j=i; --j>=0; )
        if( (y=a[j]) > x )
          x = y;
    
      return x;
    }
    -------------------------snip here-----------------------
    
    Since the bug is a regression on the branch, I rate the PR "high priority".

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8555