I don't know how to make a preprocessed source,sorry! $gcc --version gcc (GCC) 4.4.0 20081005 (experimental)
$cd mpich2-1.1.0a1; mkdir build; cd build $../configure --prefix=/usr/local/mpich2; make CC ../../../../src/mpi/coll/opsum.c ../../../../src/mpi/coll/opsum.c: In function 'MPIR_SUM': ../../../../src/mpi/coll/opsum.c:21: internal compiler error: in vectorizable_load, at tree-vect-transform.c:6675 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. make[3]: *** [opsum.o] Error 1 make[3]: Leaving directory `/mnt/usr/fortran/packages/mpich2-1.1.0a1/build/src/mpi/coll' make[2]: *** [all-redirect] Error 2 make[2]: Leaving directory `/mnt/usr/fortran/packages/mpich2-1.1.0a1/build/src/mpi' make[1]: *** [all-redirect] Error 2 make[1]: Leaving directory `/mnt/usr/fortran/packages/mpich2-1.1.0a1/build/src' -- Summary: ICE when compile mpich2-1.1.0a1 Product: gcc Version: 4.4.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: linuxl4 at sohu dot com GCC build triplet: i686-pc-linux-gnu GCC host triplet: i686-pc-linux-gnu GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37742