[Bug ada/32442] New: Ada 05 Null Exclusion Problem

["tiberius1 at gmx dot li" <gcc-bugzilla at gcc dot gnu dot org>]

$ /home/tiberius/local/gcc/bin/gcc -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../gcc-4.2.0/configure --prefix=/home/tiberius/local/gcc-4.2.0
--libexecdir=/home/tiberius/local/gcc-4.2.0/lib --enable-shared
--enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu
--enable-languages=c,c++,ada
Thread model: posix
gcc version 4.2.0

$ /home/tiberius/local/gcc/bin/gnatmake -gnatf -gnat05 -fstack-check -gnato bla
gcc -c -gnatf -gnat05 -fstack-check -gnato bla.adb
+===========================GNAT BUG DETECTED==============================+
| 4.2.0 (i686-pc-linux-gnu) Assert_Failure checks.adb:2615                 |
| Error detected at bla.adb:21:10                                          |
| Please submit a bug report; see http://gcc.gnu.org/bugs.html.            |
| Use a subject line meaningful to you and us to track the bug.            |
| Include the entire contents of this bug box in the report.               |
| Include the exact gcc or gnatmake command that you entered.              |
| Also include sources listed below in gnatchop format                     |
| (concatenated together with no headers between files).                   |
+==========================================================================+

Please include these source files with error report
Note that list may not be accurate in some cases, 
so please double check that the problem can still 
be reproduced with the set of files listed.

bla.adb

compilation abandoned
gnatmake: "bla.adb" compilation error

$ cat bla.adb 
with Ada.Text_IO;

procedure bla
is

   procedure Default
   is
   begin
      Ada.Text_IO.Put_Line ("xx");
   end Default;

   type V is (abc, def, ghi, jkl);

   type W is array (V) of not null access procedure;

   X : constant W := (others => Default'Access);

--  Commenting this out doesn't cause the problem
   type Y is
      record
         Z : W := X;
      end record;

begin

   null;

end bla;


-- 
           Summary: Ada 05 Null Exclusion Problem
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ada
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tiberius1 at gmx dot li
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32442