[Bug fortran/78479] New: ICE in gfc_apply_init, at fortran/expr.c:4135

["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=78479

            Bug ID: 78479
           Summary: ICE in gfc_apply_init, at fortran/expr.c:4135
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gerhard.steinmetz.fortran@t-online.de
  Target Milestone: ---

With valid code down to at least 4.8 :


$ cat z1.f90
program p
   type t
      character(3) :: c(1) = 'a' // ['b']
   end type
end


$ cat z2.f90
program p
   type t
      character(1) :: c(1) = 'a' // ['b']
   end type
end


$ gfortran-7-20161120 z1.f90
f951: internal compiler error: Segmentation fault
0xc4265f crash_signal
        ../../gcc/toplev.c:333
0x68f1b2 gfc_apply_init(gfc_typespec*, symbol_attribute*, gfc_expr*)
        ../../gcc/fortran/expr.c:4135
0x6828bf build_struct
        ../../gcc/fortran/decl.c:1943
0x6828bf variable_decl
        ../../gcc/fortran/decl.c:2443
0x6828bf gfc_match_data_decl()
        ../../gcc/fortran/decl.c:4898
0x6daa89 match_word_omp_simd
        ../../gcc/fortran/parse.c:93
0x6de03e match_word
        ../../gcc/fortran/parse.c:377
0x6de03e decode_statement
        ../../gcc/fortran/parse.c:377
0x6dfe44 next_free
        ../../gcc/fortran/parse.c:1180
0x6dfe44 next_statement
        ../../gcc/fortran/parse.c:1413
0x6e138a parse_derived
        ../../gcc/fortran/parse.c:3233
0x6e138a parse_spec
        ../../gcc/fortran/parse.c:3773
0x6e3bc3 parse_progunit
        ../../gcc/fortran/parse.c:5615
0x6e51b4 gfc_parse_file()
        ../../gcc/fortran/parse.c:6124
0x729052 gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:202