[Bug fortran/99348] New: ICE in resolve_structure_cons, at fortran/resolve.c:1286

["gscfq@t-online.de" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99348

            Bug ID: 99348
           Summary: ICE in resolve_structure_cons, at
                    fortran/resolve.c:1286
           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: ---

Started with r9, between 20181028 and 20181104 :


$ cat z1.f90
program p
   type t
      character(3) :: c
   end type
   type(t), parameter :: x(1) = t('abc')
   print *, x%c%len
end


$ gfortran-11-20210228 -c z1.f90
f951: internal compiler error: Segmentation fault
0xc0666f crash_signal
        ../../gcc/toplev.c:327
0x702c1c resolve_structure_cons
        ../../gcc/fortran/resolve.c:1286
0x6f1161 gfc_resolve_expr(gfc_expr*)
        ../../gcc/fortran/resolve.c:7156
0x687212 find_inquiry_ref
        ../../gcc/fortran/expr.c:1776
0x68a7ad simplify_ref_chain
        ../../gcc/fortran/expr.c:2027
0x689e3d gfc_simplify_expr(gfc_expr*, int)
        ../../gcc/fortran/expr.c:2266
0x68a65b simplify_parameter_variable
        ../../gcc/fortran/expr.c:2110
0x68a3dd gfc_simplify_expr(gfc_expr*, int)
        ../../gcc/fortran/expr.c:2248
0x6e753f gfc_match_varspec(gfc_expr*, int, bool, bool)
        ../../gcc/fortran/primary.c:2442
0x6e92d3 gfc_match_rvalue(gfc_expr**)
        ../../gcc/fortran/primary.c:3611
0x6bd92e match_primary
        ../../gcc/fortran/matchexp.c:157
0x6bd92e match_level_1
        ../../gcc/fortran/matchexp.c:211
0x6bd92e match_mult_operand
        ../../gcc/fortran/matchexp.c:267
0x6bdb78 match_add_operand
        ../../gcc/fortran/matchexp.c:356
0x6bddcc match_level_2
        ../../gcc/fortran/matchexp.c:480
0x6bdf22 match_level_3
        ../../gcc/fortran/matchexp.c:551
0x6be014 match_level_4
        ../../gcc/fortran/matchexp.c:599
0x6be014 match_and_operand
        ../../gcc/fortran/matchexp.c:693
0x6be202 match_or_operand
        ../../gcc/fortran/matchexp.c:722
0x6be2d2 match_equiv_operand
        ../../gcc/fortran/matchexp.c:765