[Bug fortran/55735] ICE with deferred-length strings in COMMON

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55735

G. Steinmetz <gscfq@t-online.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |gscfq@t-online.de

--- Comment #13 from G. Steinmetz <gscfq@t-online.de> ---

Updating variants :


$ cat z1.f90
program p
   character(:), pointer :: c
   common c
   c = 'abc'
end


$ cat z2.f90
program p
   character(:), pointer :: c
   common c
   n = len_trim(c)
end


$ gfortran-10-20191201 -c z1.f90
z1.f90:4:0:

    4 |    c = 'abc'
      |
internal compiler error: in gfc_conv_variable, at fortran/trans-expr.c:2789
0x708eb9 gfc_conv_variable
        ../../gcc/fortran/trans-expr.c:2789
0x704afa gfc_conv_expr(gfc_se*, gfc_expr*)
        ../../gcc/fortran/trans-expr.c:8665
0x71470f gfc_trans_assignment_1
        ../../gcc/fortran/trans-expr.c:10884
0x6d4617 trans_code
        ../../gcc/fortran/trans.c:1852
0x6fda64 gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:6798
0x686c26 translate_all_program_units
        ../../gcc/fortran/parse.c:6302
0x686c26 gfc_parse_file()
        ../../gcc/fortran/parse.c:6541
0x6d10bf gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:210