[Bug fortran/92863] New: ICE in gfc_typename

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92863

            Bug ID: 92863
           Summary: ICE in gfc_typename
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Keywords: error-recovery, ice-on-invalid-code
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: asolokha at gmx dot com
  Target Milestone: ---

gfortran-10.0.0-alpha20191208 snapshot (r279100) ICEs when compiling the
following testcase:

type(l1) function mp()
  call sub(mp)
end function mp

function bi(ry)
  call sub(ry)
end function bi

% powerpc-e300c3-linux-gnu-gfortran-10.0.0-alpha20191208 -c pws8056f.f90
pws8056f.f90:1:0:

    1 | type(l1) function mp()
      | 
Error: The type for function 'mp' at (1) is not accessible
f951: internal compiler error: Segmentation fault
0xe74916 crash_signal
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.0_alpha20191208/work/gcc-10-20191208/gcc/toplev.c:328
0x860c1b sprintf
        /usr/include/bits/stdio2.h:36
0x860c1b gfc_typename(gfc_typespec*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.0_alpha20191208/work/gcc-10-20191208/gcc/fortran/misc.c:167
0x834466 compare_parameter
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.0_alpha20191208/work/gcc-10-20191208/gcc/fortran/interface.c:2399
0x834466 gfc_compare_actual_formal(gfc_actual_arglist**, gfc_formal_arglist*,
int, int, bool, locus*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.0_alpha20191208/work/gcc-10-20191208/gcc/fortran/interface.c:3149
0x9749ef check_externals_procedure
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.0_alpha20191208/work/gcc-10-20191208/gcc/fortran/frontend-passes.c:5410
0x97a9a3 gfc_code_walker(gfc_code**, int (*)(gfc_code**, int*, void*), int
(*)(gfc_expr**, int*, void*), void*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.0_alpha20191208/work/gcc-10-20191208/gcc/fortran/frontend-passes.c:5039
0x97c24f gfc_check_externals(gfc_namespace*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.0_alpha20191208/work/gcc-10-20191208/gcc/fortran/frontend-passes.c:5496
0x885704 gfc_parse_file()
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.0_alpha20191208/work/gcc-10-20191208/gcc/fortran/parse.c:6494
0x8d3fbe gfc_be_parse_file
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.0_alpha20191208/work/gcc-10-20191208/gcc/fortran/f95-lang.c:210