[Bug fortran/83865] ICE in wide_int_to_tree_1, at tree.c:1567

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83865

--- Comment #1 from G. Steinmetz <gscfq@t-online.de> ---

A similar pair : ICE with 7/8 for z4.f90, z5.f90 works.


$ cat z4.f90
program p
   associate (x => f())
      if ( x(1) /= '' ) call abort
   end associate
contains
   function f() result(z)
      character(:), allocatable :: z(:)
      allocate (z, source=[''])
   end
end


$ cat z5.f90
program p
   associate (x => f())
      if ( x(1) /= 'a' ) call abort
   end associate
contains
   function f() result(z)
      character(:), allocatable :: z(:)
      allocate (z, source=['a'])
   end
end


$ gfortran-8-20180114 -c z4.f90
z4.f90:8:0:

       allocate (z, source=[''])

internal compiler error: in wide_int_to_tree_1, at tree.c:1567
0xdd23c3 wide_int_to_tree_1
        ../../gcc/tree.c:1567
0xdd293b wide_int_to_tree(tree_node*, poly_int<1u,
generic_wide_int<wide_int_ref_storage<false, true> > > const&)
        ../../gcc/tree.c:1692
0xdd293b build_int_cst(tree_node*, poly_int<1u, long>)
        ../../gcc/tree.c:1360
0x7494ae gfc_allocate_allocatable(stmtblock_t*, tree_node*, tree_node*,
tree_node*, tree_node*, tree_node*, tree_node*, tree_node*, gfc_expr*, int)
        ../../gcc/fortran/trans.c:801
0x7b604d gfc_trans_allocate(gfc_code*)
        ../../gcc/fortran/trans-stmt.c:6268
0x747a27 trans_code
        ../../gcc/fortran/trans.c:1980
0x76eb79 gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:6451
0x76e9f7 gfc_generate_contained_functions
        ../../gcc/fortran/trans-decl.c:5463
0x76e9f7 gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:6380
0x6fe980 translate_all_program_units
        ../../gcc/fortran/parse.c:6103
0x6fe980 gfc_parse_file()
        ../../gcc/fortran/parse.c:6306
0x744e5f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:204