[Bug fortran/36465] New: Compilation crashes and asks me to submit a bug report

["pattakosn at yahoo dot com" <gcc-bugzilla at gcc dot gnu dot org>]

There is a simulation code that I am trying to make run faster by trying
several compile optimization flags. It also uses OpenMP to utilize multiple
cores. Today I got this:

Driving: /home/nimar/opt/gcc-4.3.0/bin/gfortran -v -save-temps
-I/home/nimar/opt/gcc-4.3.0/include -O3 -fimplicit-none -fopenmp
-ftree-parallelize-loops=4 -funroll-all-loops -msse4a -march=native -fipa-pta
-fipa-cp -funroll-loops -fprefetch-loop-arrays -funit-at-a-time -combine
Bed_ini.f -lgfortranbegin -lgfortran -lm -shared-libgcc
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: /home/nimar/build/gcc-4.3.0/configure
--prefix=/home/nimar/opt/gcc-4.3.0 --with-gmp=/home/nimar/opt/gcc-4.3.0
--with-mpfr=/home/nimar/opt/gcc-4.3.0 --enable-languages=c,c++,fortran
Thread model: posix
gcc version 4.3.0 (GCC) 
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-I/home/nimar/opt/gcc-4.3.0/include'
'-O3' '-fimplicit-none' '-fopenmp' '-ftree-parallelize-loops=4'
'-funroll-all-loops' '-msse4a'  '-fipa-pta' '-fipa-cp' '-funroll-loops'
'-fprefetch-loop-arrays' '-funit-at-a-time' '-combine' '-shared-libgcc'
'-pthread'
 /home/nimar/opt/gcc-4.3.0/libexec/gcc/i686-pc-linux-gnu/4.3.0/f951 Bed_ini.f
-ffixed-form -march=core2 -mcx16 -msahf --param l1-cache-size=32 --param
l1-cache-line-size=64 -mtune=core2 -quiet -dumpbase Bed_ini.f -msse4a -auxbase
Bed_ini -O3 -version -fimplicit-none -fopenmp -ftree-parallelize-loops=4
-funroll-all-loops -fipa-pta -fipa-cp -funroll-loops -fprefetch-loop-arrays
-funit-at-a-time -I/home/nimar/opt/gcc-4.3.0/include -fintrinsic-modules-path
/home/nimar/opt/gcc-4.3.0/lib/gcc/i686-pc-linux-gnu/4.3.0/finclude -o Bed_ini.s
GNU F95 (GCC) version 4.3.0 (i686-pc-linux-gnu)
        compiled by GNU C version 4.3.0, GMP version 4.2.2, MPFR version 2.3.1.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Bed_ini.f: In function ?pr9_bed?:
Bed_ini.f:206: internal compiler error: in get_smt_for, at
tree-ssa-alias.c:3203
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

I use a Makefile, but I got the same when trying:

/home/nimar/opt/gcc-4.3.0/bin/gfortran -v -save-temps
-I/home/nimar/opt/gcc-4.3.0/include -O3 -fimplicit-none -fopenmp
-ftree-parallelize-loops=4 -funroll-all-loops -msse4a -march=native -fipa-pta
-fipa-cp -funroll-loops -fprefetch-loop-arrays -funit-at-a-time -combine
Bed_ini.f

I am running ubuntu 8.04, x86 on a core2quad, and I compiled gcc-4.3.0 myself
(along with gmp and mpfr). I have never come across sth like that before, so
please tell me If I need to submit sth more. I hope these help.


-- 
           Summary: Compilation crashes and asks me to submit a bug report
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: critical
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pattakosn at yahoo dot com
 GCC build triplet: i686-pc-linux
  GCC host triplet: i686-pc-linux
GCC target triplet: i686-pc-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36465