optimization/8555: [3.2 regression] ICE in gen_split_1231

[Janis Johnson]

The following reply was made to PR optimization/8555; it has been noted by GNATS.

From: Janis Johnson <janis187@us.ibm.com>
To: kris.demuynck@esat.kuleuven.ac.be, gcc-gnats@gcc.gnu.org,
   gcc-prs@gcc.gnu.org, gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org
Cc:  
Subject: Re: optimization/8555: [3.2 regression] ICE in gen_split_1231
Date: Mon, 23 Dec 2002 09:43:28 -0800

 The regression reported in PR optimization/8555 showed up
 starting with this patch to the 3.1 branch; it currently
 affects only the 3.2 branch.
 
 2002-05-23  Jakub Jelinek  <jakub@redhat.com>
 
         PR target/6753
         * config/i386/i386.md
 
 Here's a small test case that causes the compiler to ICE
 when compiled on i686-linux with the 3.2 branch compiler.
 
 -------------------
 // ICE when compiled with
 //   -march=pentium3 -O -ffast-math -funroll-loops
 
 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;
 }
 -------------------
 
 Output from the 3.2 branch compiler:
 
 8555.c: In function `foo':
 8555.c:14: Internal compiler error in gen_split_1233, at
 insn-emit.c:16727
 Please submit a full bug report,
 with preprocessed source if appropriate.
 See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
 
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8555