[Bug fortran/103610] New: ICE in gfc_convert_mpz_to_signed, at fortran/simplify.c:193

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103610

            Bug ID: 103610
           Summary: ICE in gfc_convert_mpz_to_signed, at
                    fortran/simplify.c:193
           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: ---

Affects versions down to at least r5 :


$ cat z1.f90
program p
   integer, parameter :: a(-1) = 1
   integer, parameter :: b(1) = maskl(shape(a))
end


$ cat z2.f90
program p
   integer, parameter :: a(-1) = maskl(shape(a))
end


$ gfortran-12-20211205 -c z1.f90
f951: internal compiler error: in gfc_convert_mpz_to_signed, at
fortran/simplify.c:193
0x8288e1 gfc_convert_mpz_to_signed(__mpz_struct*, int)
        ../../gcc/fortran/simplify.c:193
0x830010 gfc_simplify_maskl(gfc_expr*, gfc_expr*)
        ../../gcc/fortran/simplify.c:4923
0x7aefd6 do_simplify
        ../../gcc/fortran/intrinsic.c:4648
0x7b9f98 gfc_intrinsic_func_interface(gfc_expr*, int)
        ../../gcc/fortran/intrinsic.c:4920
0x79fb09 gfc_simplify_expr(gfc_expr*, int)
        ../../gcc/fortran/expr.c:2219
0x7a065a scalarize_intrinsic_call
        ../../gcc/fortran/expr.c:2486
0x79fb5d gfc_simplify_expr(gfc_expr*, int)
        ../../gcc/fortran/expr.c:2227
0x7ba14e gfc_intrinsic_func_interface(gfc_expr*, int)
        ../../gcc/fortran/intrinsic.c:5070
0x80dcac resolve_unknown_f
        ../../gcc/fortran/resolve.c:2972
0x80dcac resolve_function
        ../../gcc/fortran/resolve.c:3329
0x80dcac gfc_resolve_expr(gfc_expr*)
        ../../gcc/fortran/resolve.c:7166
0x79f054 gfc_reduce_init_expr(gfc_expr*)
        ../../gcc/fortran/expr.c:3155
0x7a1fc0 gfc_match_init_expr(gfc_expr**)
        ../../gcc/fortran/expr.c:3203
0x78c3d4 variable_decl
        ../../gcc/fortran/decl.c:3004
0x78c3d4 gfc_match_data_decl()
        ../../gcc/fortran/decl.c:6297
0x7f6343 match_word
        ../../gcc/fortran/parse.c:67
0x7f6343 decode_statement
        ../../gcc/fortran/parse.c:378
0x7f7d8a next_free
        ../../gcc/fortran/parse.c:1397
0x7f7d8a next_statement
        ../../gcc/fortran/parse.c:1629
0x7f931b parse_spec
        ../../gcc/fortran/parse.c:4168