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Subject: [Bug fortran/103778] New: [10/11/12 Regression] ICE: Invalid
 expression in gfc_element_size
Date: Mon, 20 Dec 2021 17:54:49 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103778

            Bug ID: 103778
           Summary: [10/11/12 Regression] ICE: Invalid expression in
                    gfc_element_size
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Another remnant from pr103412 :


$ cat z1.f90
program p
   use iso_c_binding, only : c_sizeof
   integer, parameter :: a =3D c_sizeof(z'1')
end


$ gfortran-12-20211219 -c z1.f90
f951: internal compiler error: Invalid expression in gfc_element_size.
0x79b469 gfc_report_diagnostic
        ../../gcc/fortran/error.c:874
0x79cfd7 gfc_internal_error(char const*, ...)
        ../../gcc/fortran/error.c:1494
0x841212 gfc_element_size(gfc_expr*, unsigned long*)
        ../../gcc/fortran/target-memory.c:137
0x841273 gfc_target_expr_size(gfc_expr*, unsigned long*)
        ../../gcc/fortran/target-memory.c:165
0x83513b gfc_simplify_sizeof(gfc_expr*)
        ../../gcc/fortran/simplify.c:7627
0x7b12c2 do_simplify
        ../../gcc/fortran/intrinsic.c:4641
0x7bc3ca gfc_intrinsic_func_interface(gfc_expr*, int)
        ../../gcc/fortran/intrinsic.c:5034
0x81001c resolve_unknown_f
        ../../gcc/fortran/resolve.c:2972
0x81001c resolve_function
        ../../gcc/fortran/resolve.c:3329
0x81001c gfc_resolve_expr(gfc_expr*)
        ../../gcc/fortran/resolve.c:7166
0x7a1344 gfc_reduce_init_expr(gfc_expr*)
        ../../gcc/fortran/expr.c:3155
0x7a42b0 gfc_match_init_expr(gfc_expr**)
        ../../gcc/fortran/expr.c:3203
0x78e6c4 variable_decl
        ../../gcc/fortran/decl.c:3004
0x78e6c4 gfc_match_data_decl()
        ../../gcc/fortran/decl.c:6297
0x7f86b3 match_word
        ../../gcc/fortran/parse.c:67
0x7f86b3 decode_statement
        ../../gcc/fortran/parse.c:378
0x7fa0fa next_free
        ../../gcc/fortran/parse.c:1397
0x7fa0fa next_statement
        ../../gcc/fortran/parse.c:1629
0x7fb68b parse_spec
        ../../gcc/fortran/parse.c:4168
0x7fe7dc parse_progunit
        ../../gcc/fortran/parse.c:6192=