gcc-3.3 ICE error using -msse2 -O3 in pentium4-pc-linux-gnu

[Guillermo Ballester Valor]

Hi, 

Today I've installed CVS gcc-3.3 compiler and bootstraped OK

I've wrote a code to perform Lucas-Lehmer Test to check whether a Mersenne 
number is prime (see http://glucas.sourceforge.net/ ). I'm now writing SSE2 
code to be used on Opterons and Pentium4, calling to built_in intrinsic SSE2 
libraries. Up to now, it runned OK for both Athlon/gcc-3.2 (using emulated 
sse2 code) and Intel C++ compiler with (true SSE2 code).

When I try to use gcc-3.3 compiler then I get the following error, It is not 
produced when I supress the -O optimization flag (-01 -O2 and -O3 does the 
same) :

gcc-3.3 -S -DHAVE_CONFIG_H -I. -O3 -mcpu=pentium4 -march=pentium4 -msse2  
-DNO_HACK_ALIGN -DY_TARGET=0 -DY_AVAL=4 -DY_CACHE_LINE=16 -DY_SECURE 
-DY_USE_SSE2 -DY_PENTIUM4  -o radixmm_8.s radixmm_8.c
radixmm_8.c: En la función `radixmm0_8_dif':
radixmm_8.c:361: internal compiler error: in simplify_unary_operation, at 
simplify-rtx.c:387
Por favor envíe un reporte completo de `bugs',
con el código preprocesado si es apropiado.
Vea <URL:http://gcc.gnu.org/bugs.html> para más instrucciones.
make: *** [radixmm_8.s] Error 1

gbv@bach:~> gcc-3.3 -v
Leyendo especificaciones de 
/usr/local/gcc-3.3/lib/gcc-lib/i686-pc-linux-gnu/3.3/specs
Configurado con: /home/gbv/gcc-3.3/gcc/configure --prefix=/usr/local/gcc-3.3 
--program-suffix=-3.3
Modelo de hilos: posix
gcc versión 3.3 20030424 (prerelease)


I was a few lost. I think it is a bug but I didn't know how can I send you an 
easy test to show the problem, the resulting radixmm_8.i is unreadable due to 
the recursed expansion of large macros. 

Fortunately, I've been able to write a small test to show the problem. Again, 
Intel C++ compiler runs OK.

gbv@bach:~/glucas/glucas-2.9.1> gcc-3.3 -O3 -mcpu=pentium4 -msse2 sse2test.c 
-o sse2test
sse2test.c: En la función `main':
sse2test.c:87: internal compiler error: in simplify_unary_operation, at 
simplify-rtx.c:387
Por favor envíe un reporte completo de `bugs',
con el código preprocesado si es apropiado.
Vea <URL:http://gcc.gnu.org/bugs.html> para más instrucciones.


And attached is the offending code


Guillermo.


-- 
Guillermo Ballester Valor
gbv@oxixares.com
Ogijares, Granada  SPAIN
 
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