[Bug fortran/47745] New: Gfortran segfaults with class(*) and derived type dummy arguments

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47745

           Summary: Gfortran segfaults with class(*) and derived type
                    dummy arguments
           Product: gcc
           Version: 4.5.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: thisrod@gmail.com


Created attachment 23346
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23346
This program crashes the compiler

Attempting to compile the attached source, crashme.f08, does as follows. 
Changing type(T) to integer, or deleting the line "add = 1", avoids the
compiler crash.

% gfortran -v -c derived.f08
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/usr/local/gfortran/libexec/gcc/x86_64-apple-darwin10.3.0/4.5.1/lto-wrapper
Target: x86_64-apple-darwin10.3.0
Configured with: ../gcc-4_5-branch/configure --prefix=/usr/local/gfortran
--enable-languages=c,c++,fortran
--with-gmp=/Users/fx/devel/gcc/ibin45/../irun45 --enable-bootstrap
--with-included-gettext --with-arch=nocona --with-tune=generic
Thread model: posix
gcc version 4.5.1 20100506 (prerelease) (GCC) 
COLLECT_GCC_OPTIONS='-mmacosx-version-min=10.6.6' '-v' '-c' '-mtune=generic'
'-march=nocona'
 /usr/local/gfortran/libexec/gcc/x86_64-apple-darwin10.3.0/4.5.1/f951
derived.f08 -fPIC -quiet -dumpbase derived.f08 -mmacosx-version-min=10.6.6
-mtune=generic -march=nocona -auxbase derived -version -fintrinsic-modules-path
/usr/local/gfortran/lib/gcc/x86_64-apple-darwin10.3.0/4.5.1/finclude -o
/var/folders/9P/9PFGWXR+FHWaXgjuUM4v5U+++TU/-Tmp-//ccOLAgz5.s
GNU Fortran (GCC) version 4.5.1 20100506 (prerelease)
(x86_64-apple-darwin10.3.0)
    compiled by GNU C version 4.5.1 20100506 (prerelease), GMP version 4.3.1,
MPFR version 2.4.2-p2, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU Fortran (GCC) version 4.5.1 20100506 (prerelease)
(x86_64-apple-darwin10.3.0)
    compiled by GNU C version 4.5.1 20100506 (prerelease), GMP version 4.3.1,
MPFR version 2.4.2-p2, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
derived.f08:8.23:

                class(*), intent(in) :: x
                       1
Error: Invalid character in name at (1)
f951: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.