[Bug fortran/95067] New: [10/11 Regression] ICE in tree_fits_shwi_p, at tree.c:7262

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95067

            Bug ID: 95067
           Summary: [10/11 Regression] ICE in tree_fits_shwi_p, at
                    tree.c:7262
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Changed between 20190526 and 20190602, with option -gstabs :


$ cat z1.f90
program p
   character(:), allocatable :: a
   character(3) :: b[*]
   a = 'abc'
   b[1] = a
end


$ gfortran-9 -c z1.f90 -fcoarray=lib -O2 -gstabs
$
$ gfortran-11-20200510 -c z1.f90 -fcoarray=lib -O2 -gstabs
during RTL pass: final
z1.f90:6:0:

    6 | end
      |
internal compiler error: Segmentation fault
0xbb93cf crash_signal
        ../../gcc/toplev.c:328
0xe0d447 tree_fits_shwi_p(tree_node const*)
        ../../gcc/tree.c:7262
0x815e82 dbxout_range_type
        ../../gcc/dbxout.c:1740
0x81556a dbxout_type
        ../../gcc/dbxout.c:2042
0x8141d4 dbxout_type
        ../../gcc/dbxout.c:2334
0x8161fe dbxout_symbol_location
        ../../gcc/dbxout.c:3246
0x816f00 dbxout_symbol(tree_node*, int)
        ../../gcc/dbxout.c:2972
0x817f2e dbxout_syms(tree_node*)
        ../../gcc/dbxout.c:3428
0x81808c dbxout_block
        ../../gcc/dbxout.c:3791
0x8182a3 dbxout_function_decl
        ../../gcc/dbxout.c:1388
0x8d9399 rest_of_handle_final
        ../../gcc/final.c:4694
0x8d9399 execute
        ../../gcc/final.c:4736