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