For the attached test case, current gfortran crashes with the following ICE:
~/data/planck/LevelS/bugrep>gfortran -v -c -O2 testcase.f90
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: /scratch/martin/gcc/configure
--prefix=/afs/mpa/data/martin/ugc
c --with-mpfr-include=/usr/include --with-mpfr-lib=/usr/lib
--with-gmp-include=/
usr/include --with-gmp-lib=/usr/lib --enable-languages=c++,fortran
--enable-chec
king=release
Thread model: posix
gcc version 4.4.0 20080830 (experimental) [trunk revision 139798] (GCC)
COLLECT_GCC_OPTIONS='-v' '-c' '-O2' '-mtune=generic'
/afs/mpa/data/martin/ugcc/libexec/gcc/i686-pc-linux-gnu/4.4.0/f951
testcase.f90
-quiet -dumpbase testcase.f90 -mtune=generic -auxbase testcase -O2 -version
-fi
ntrinsic-modules-path
/afs/mpa/data/martin/ugcc/lib/gcc/i686-pc-linux-gnu/4.4.0/
finclude -o /tmp/ccQMSZnv.s
GNU Fortran (GCC) version 4.4.0 20080830 (experimental) [trunk revision 139798]
(i686-pc-linux-gnu)
compiled by GNU C version 4.4.0 20080830 (experimental) [trunk revision
139798], GMP version 4.2.1, MPFR version 2.3.1.
warning: GMP header version 4.2.1 differs from library version 4.2.2.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
testcase.f90: In function 'gn_monte_rand':
testcase.f90:50: internal compiler error: in subst_stack_regs_pat, at
reg-stack.
c:1537
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
It seems that the same problem does not occur on "x86_64-unknown-linux-gnu".
--
Summary: gfortran, trunk: ICE subst_stack_regs_pat, at reg-
stack.c:1537
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: martin at mpa-garching dot mpg dot de
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=37286
