[Bug middle-end/50316] ICE on fortran code with -O2 and -march=core2 options

["ygepes at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50316

--- Comment #4 from ygepes at gmail dot com 2011-09-09 08:18:11 UTC ---
Hi Tobias, I have upgraded to version 4.7.0 and the cse bug is gone. 
However, when I tried to compile shelxl (crystal structure refinement 
program) with this version, throwing the -O3 switch produced the 
following output below. The source file is large and not freeware, so I 
have not attached it. Pls tell me whether this is a known bug; if not, I 
can send the source later.

Many thanks, R. Gyepes


[r@HPBIOLABOR02 ...utils/shelxl]$ gfortran -v -O3 shelxl.for
Driving: gfortran -v -O3 shelxl.for -l gfortran
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/usr/bin/../libexec/gcc/i686-pc-cygwin/4.7.0/lto-wrapper.exe

Target: i686-pc-cygwin
Configured with: ../trunk/configure --prefix=/usr/local/gfortran 
--enable-langua
ges=c,c++,fortran --enable-threads=posix --disable-sjlj-exceptions 
--enable-vers
ion-specific-runtime-libs --enable-nls --disable-libmudflap 
--disable-win32-regi
stry --with-system-zlib --disable-bootstrap --enable-werror 
--without-included-g
ettext --without-x --enable-libgomp --with-arch=i686 --with-tune=generic 
--disab
le-__cxa_atexit --enable-static --disable-shared --enable-shared-libgcc
Thread model: posix
gcc version 4.7.0 20110329 (experimental) [trunk revision 171562] (GCC)
COLLECT_GCC_OPTIONS='-v' '-O3' '-mtune=generic' '-march=i686'
  /usr/bin/../libexec/gcc/i686-pc-cygwin/4.7.0/f951.exe shelxl.for 
-ffixed-form -
quiet -dumpbase shelxl.for -mtune=generic -march=i686 -auxbase shelxl 
-O3 -versi
on -fintrinsic-modules-path 
/usr/bin/../lib/gcc/i686-pc-cygwin/4.7.0/finclude -o
  /tmp/ccLY6I7C.s
GNU Fortran (GCC) version 4.7.0 20110329 (experimental) [trunk revision 
171562]
(i686-pc-cygwin)
         compiled by GNU C version 4.3.4 20090804 (release) 1, GMP 
version 4.3.1,
  MPFR version 2.4.1-p5, MPC version 0.8
warning: GMP header version 4.3.1 differs from library version 4.3.2.
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU Fortran (GCC) version 4.7.0 20110329 (experimental) [trunk revision 
171562]
(i686-pc-cygwin)
         compiled by GNU C version 4.3.4 20090804 (release) 1, GMP 
version 4.3.1,
  MPFR version 2.4.1-p5, MPC version 0.8
warning: GMP header version 4.3.1 differs from library version 4.3.2.
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
shelxl.for: In function 'sx3c':
shelxl.for:3682:0: error: insn does not satisfy its constraints:
(insn 6270 6269 5781 151 (set (reg/v/f:SI 14 st(6) [orig:3470 ff ] [3470])
         (mem/c:SI (plus:SI (reg/f:SI 7 sp)
                 (const_int 40 [0x28])) [0 S4 A32])) shelxl.for:3295 50 
{*movsi_i
nternal}
      (nil))
shelxl.for:3682:0: internal compiler error: in 
reload_cse_simplify_operands, at
postreload.c:403
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

On 7. 9. 2011 15:45, burnus at gcc dot gnu.org wrote:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50316
>
> Tobias Burnus<burnus at gcc dot gnu.org>  changed:
>
>             What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                   CC|                            |burnus at gcc dot gnu.org
>
> --- Comment #3 from Tobias Burnus<burnus at gcc dot gnu.org>  2011-09-07 13:45:09 UTC ---
> For obtaining a newer GCC/gfortran version, see also
>    http://gcc.gnu.org/wiki/GFortranBinaries
>
> It would be great if you could test a newer version and then report back
> whether your code is working.
>