[Bug fortran/67542] ICE in gfc_emit_parameter_debug_info, at fortran/trans-decl.c:4947 and :4945

["gerhard dot steinmetz dot fortran at t-online dot de" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67542

Gerhard Steinmetz <gerhard.steinmetz.fortran@t-online.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|ICE on initializing type    |ICE in
                   |variable with a longer      |gfc_emit_parameter_debug_in
                   |array                       |fo, at
                   |                            |fortran/trans-decl.c:4947
                   |                            |and :4945

--- Comment #7 from Gerhard Steinmetz <gerhard.steinmetz.fortran@t-online.de> ---

The problems are gone for examples z1, z2, z3 (and others),
but still there for examples z4, z5, z6. Volatile and transient,
for different runs and different options. Summary line adjusted.


One example -- but not limited to -std=f2008 nor depending on it :


$ for n in `seq 1 100`
$ do
$    gfortran-7-20160731 -std=f2008 -c z6.f90
$ done


$ gfortran-7-20160731 -std=f2008 -c z6.f90
z6.f90:10:0:

 end

internal compiler error: Segmentation fault
0xc1436f crash_signal
        ../../gcc/toplev.c:335
0x73cb13 gfc_emit_parameter_debug_info
        ../../gcc/fortran/trans-decl.c:4947
0x706ddb do_traverse_symtree
        ../../gcc/fortran/symbol.c:3930
0x74bfc5 gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:6381
0x6d7610 translate_all_program_units
        ../../gcc/fortran/parse.c:5916
0x6d7610 gfc_parse_file()
        ../../gcc/fortran/parse.c:6122
0x719b32 gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:198


---


$ gfortran-7-20160731 -std=f2008 -c z4.f90
z4.f90:9:0:

 end

internal compiler error: Segmentation fault
0xc1436f crash_signal
        ../../gcc/toplev.c:335
0x73ad38 gfc_conv_const_charlen(gfc_charlen*)
        ../../gcc/fortran/trans-const.c:182
0x73cb01 gfc_emit_parameter_debug_info
        ../../gcc/fortran/trans-decl.c:4945
0x706ddb do_traverse_symtree
        ../../gcc/fortran/symbol.c:3930
0x74bfc5 gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:6381
0x6d7610 translate_all_program_units
        ../../gcc/fortran/parse.c:5916
0x6d7610 gfc_parse_file()
        ../../gcc/fortran/parse.c:6122
0x719b32 gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:198