optimization/4994: ICE with "-fno-exceptions -O2 -mmmx -march=athlon"

[Michael Ritzert]

I was able to reduce the testcase to the attached file:

# c++ -v
Reading specs from /3/gcc/HEAD/install/lib/gcc-lib/i686-pc-linux-gnu/3.1/specs
Configured with: /3/gcc/HEAD/gcc/configure --enable-threads=posix 
--prefix=/3/gcc/HEAD/install
Thread model: posix
gcc version 3.1 20011226 (experimental)
# c++ -fno-exceptions -O2 -mmmx -march=athlon -c -fPIC sw5.cpp
sw5.cpp: In function `void activatedAddMenu(int)':
sw5.cpp:69: insn does not satisfy its constraints:
(insn 464 470 517 (set (reg/v/f:SI 29 emm0 [94])
        (reg/v/f:SI 30 emm1 [95])) 45 {*movsi_1} (nil)
    (nil))
sw5.cpp:69: Internal compiler error in reload_cse_simplify_operands, at
   reload1.c:8348
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=4994
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