[Bug ada/51114] New: Got compiler error when creating a private subtype

["frederic.praca at free dot fr" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51114

             Bug #: 51114
           Summary: Got compiler error when creating a private subtype
    Classification: Unclassified
           Product: gcc
           Version: 4.4.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ada
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: frederic.praca@free.fr


Created attachment 25810
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25810
The source files which can trigger the bug

When creating a private subtype through a function caused a compiler error.
Output was :
gnatmake -Wall -Wextra gnat_bug.adb 
gcc-4.4 -c -Wall -Wextra gnat_bug.adb
+===========================GNAT BUG DETECTED==============================+
| 4.4.3 (i486-pc-linux-gnu) GCC error:                                     |
| in gnat_to_gnu_entity, at ada/gcc-interface/decl.c:545                   |
| Error detected at gnat_bug.adb:9:30                                      |
| 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-4.4 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.

gnat_bug.adb
chords.ads
namedstructures.ads
notes.ads
intervals.ads

gnat_bug.adb:9:04: warning: "Failling_Chord" is not modified, could be declared
constant
compilation abandoned
gnatmake: "gnat_bug.adb" compilation error

Appeared also on FreeBSD on a 4.6.1 version with the following message:
gnatmake -Wall -Wextra gnat_bug.adb
gnatgcc -c -Wall -Wextra gnat_bug.adb
+===========================GNAT BUG DETECTED==============================+
| 4.6.1 20110627 (release) -=> GNAT AUX [FreeBSD] (i386-aux-freebsd8.2) GCC
error:|
| in gnat_to_gnu_entity, at ada/gcc-interface/decl.c:599                   |
| Error detected at gnat_bug.adb:9:30                                      |
| 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.
Consider also -gnatd.n switch (see debug.adb).

gnat_bug.adb
chords.ads
namedstructures.ads
notes.ads
intervals.ads

gnat_bug.adb:9:04: warning: "Failling_Chord" is not modified, could be declared
constant
compilation abandoned
gnatmake: "gnat_bug.adb" compilation error