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Subject: [Bug fortran/103777] New: ICE in gfc_simplify_maskl, at
 fortran/simplify.c:4918
Date: Mon, 20 Dec 2021 17:53:09 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103777

            Bug ID: 103777
           Summary: ICE in gfc_simplify_maskl, at fortran/simplify.c:4918
           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: ---

Follow-up of pr103610, affects versions down to at least r5 :


$ cat z1.f90
program p
   integer, parameter :: a(999) =3D 1
   integer, parameter :: b(1) =3D maskl(shape(a))
end


$ cat z2.f90
program p
   integer, parameter :: a(-9:999) =3D 1
   integer, parameter :: b(1) =3D maskl(shape(a))
end


$ gfortran-12-20211219 -c z1.f90
gmp: overflow in mpz type
f951: internal compiler error: Aborted
0xd6d1ff crash_signal
        ../../gcc/toplev.c:322
0x832369 gfc_simplify_maskl(gfc_expr*, gfc_expr*)
        ../../gcc/fortran/simplify.c:4918
0x7b12f6 do_simplify
        ../../gcc/fortran/intrinsic.c:4648
0x7bc2b8 gfc_intrinsic_func_interface(gfc_expr*, int)
        ../../gcc/fortran/intrinsic.c:4920
0x7a1df9 gfc_simplify_expr(gfc_expr*, int)
        ../../gcc/fortran/expr.c:2219
0x7a294a scalarize_intrinsic_call
        ../../gcc/fortran/expr.c:2486
0x7a1e4d gfc_simplify_expr(gfc_expr*, int)
        ../../gcc/fortran/expr.c:2227
0x7bc46e gfc_intrinsic_func_interface(gfc_expr*, int)
        ../../gcc/fortran/intrinsic.c:5070
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=