[Bug fortran/50718] New: [4.6/4.7 Regression] ICE (fold_convert) with -fcheck=pointer

["burnus at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50718

             Bug #: 50718
           Summary: [4.6/4.7 Regression] ICE (fold_convert) with
                    -fcheck=pointer
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: burnus@gcc.gnu.org


FGSL version 0.9.3 from
http://www.lrz.de/services/software/mathematik/gsl/fortran/

With gfortran 4.7 and with gfortran 4.6.1 20110801 (rev. 177033), I get:

  api/siman.finc:99:0: internal compiler error: in fold_convert_loc,
                       at fold-const.c:2026

It works with 4.5.3 20110428 [rev. 173117].


#9  0x0000000000aeefab in build_array_type_1 (elt_type=0x2aaaaab48348,
    index_type=0x2aaaacf0d7e0, shared=true) at
/home/tob/projects/gcc-git/gcc/gcc/tree.c:7373
#10 0x0000000000604285 in gfc_get_character_type_len_for_eltype
(eltype=0x2aaaaab48348,
    len=<optimized out>) at
/home/tob/projects/gcc-git/gcc/gcc/fortran/trans-types.c:977
#11 0x00000000006089a9 in gfc_sym_type (sym=0x2ad5780)
    at /home/tob/projects/gcc-git/gcc/gcc/fortran/trans-types.c:2050
#12 0x00000000005c112c in create_function_arglist (sym=0x1bcb3d0)
    at /home/tob/projects/gcc-git/gcc/gcc/fortran/trans-decl.c:2067