[Bug fortran/84870] New: [7/8 Regression] ICE in gfc_trans_structure_assign, at fortran/trans-expr.c:7651

gscfq@t-online.de gcc-bugzilla@gcc.gnu.org
Wed Mar 14 17:56:00 GMT 2018


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84870

            Bug ID: 84870
           Summary: [7/8 Regression] ICE in gfc_trans_structure_assign, at
                    fortran/trans-expr.c:7651
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Changed between 20161127 and 20161204 :


$ cat z1.f90
program p
   type t
      real, allocatable :: a
   end type
   type t2
      type(t), allocatable :: b
   end type
   type(t2) :: x, y[*]
   x%b = t(1.0)
   y = x
   y%b%a = 2.0
end


$ gfortran-7-20161127 -c z1.f90 -fcoarray=lib
$
$ gfortran-8-20180311 -c z1.f90 -fcoarray=lib
z1.f90:1:0:

 program p

internal compiler error: Segmentation fault
0xb9b07f crash_signal
        ../../gcc/toplev.c:325
0x7822a0 gfc_trans_structure_assign(tree_node*, gfc_expr*, bool, bool)
        ../../gcc/fortran/trans-expr.c:7651
0x783fdf gfc_conv_structure(gfc_se*, gfc_expr*, int)
        ../../gcc/fortran/trans-expr.c:7771
0x77db7c gfc_conv_expr(gfc_se*, gfc_expr*)
        ../../gcc/fortran/trans-expr.c:7938
0x785872 gfc_trans_assignment_1
        ../../gcc/fortran/trans-expr.c:10094
0x76646d generate_coarray_sym_init
        ../../gcc/fortran/trans-decl.c:5368
0x734c7b do_traverse_symtree
        ../../gcc/fortran/symbol.c:4159
0x765695 generate_coarray_init
        ../../gcc/fortran/trans-decl.c:5417
0x7718cc gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:6435
0x7007c0 translate_all_program_units
        ../../gcc/fortran/parse.c:6121
0x7007c0 gfc_parse_file()
        ../../gcc/fortran/parse.c:6324
0x74735f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:204


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