[Bug ada/40805] New: verify_gimple failure preceded by "non-trivial conversion at assignment" errors

[Bug ada/40805] New: verify_gimple failure preceded by "non-trivial conversion at assignment" errors

[oliver dot kellogg at eads dot com]

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This does not happen with the 4.4.0 release but does happen with
trunk 20090314 and following:

$ gcc -c -v polyorb-binding_data-giop-inet.adb
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../../SOURCES/gcc/configure --prefix=/opt/gnat/fsf
--enable-languages=c,c++,ada --enable-debug BOOT_CFLAGS=-g
Thread model: posix
gcc version 4.5.0 20090717 (experimental) (GCC) 
COLLECT_GCC_OPTIONS='-c' '-v' '-mtune=generic'
 /opt/gnat/fsf/libexec/gcc/i686-pc-linux-gnu/4.5.0/gnat1 -quiet -dumpbase
polyorb-binding_data-giop-inet.adb -auxbase polyorb-binding_data-g
iop-inet -mtune=generic polyorb-binding_data-giop-inet.adb -o /tmp/ccfkgsxH.s
polyorb-binding_data-giop-inet.adb: In function
‘Polyorb.Binding_Data.Giop.Inet.Common_Unmarshall_Profile_Body’:
polyorb-binding_data-giop-inet.adb:266:4: error: non-trivial conversion at
assignment
const struct polyorb__objects__object_id___XUB *
const struct ada__streams__stream_element_array___XUB *
D.3963.P_BOUNDS = D.3966;

polyorb-binding_data-giop-inet.adb:266:4: error: non-trivial conversion at
assignment
const struct polyorb__objects__object_id___XUB *
const struct ada__streams__stream_element_array___XUB *
D.3969.P_BOUNDS = D.3972;

polyorb-binding_data-giop-inet.adb:266:4: error: non-trivial conversion at
assignment
const struct polyorb__objects__object_id___XUB *
const struct ada__streams__stream_element_array___XUB *
D.3980.P_BOUNDS = D.3983;

polyorb-binding_data-giop-inet.adb:266:4: error: non-trivial conversion at
assignment
const struct polyorb__objects__object_id___XUB *
const struct ada__streams__stream_element_array___XUB *
D.3986.P_BOUNDS = D.3989;
polyorb-binding_data-giop-inet.adb:266:4: error: non-trivial conversion at
assignment
const struct polyorb__objects__object_id___XUB *
const struct ada__streams__stream_element_array___XUB *
D.3992.P_BOUNDS = D.3995;

polyorb-binding_data-giop-inet.adb:266:4: error: non-trivial conversion at
assignment
const struct polyorb__objects__object_id___XUB *
const struct ada__streams__stream_element_array___XUB *
D.3997.P_BOUNDS = D.4000;

polyorb-binding_data-giop-inet.adb:266:4: error: non-trivial conversion at
assignment
const struct polyorb__objects__object_id___XUB *
const struct ada__streams__stream_element_array___XUB *
D.4003.P_BOUNDS = D.4006;

+===========================GNAT BUG DETECTED==============================+
| 4.5.0 20090717 (experimental) (i686-pc-linux-gnu) verify_gimple failed   |
| Error detected around polyorb-binding_data-giop-inet.adb:266:4           |
| 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).

polyorb-binding_data-giop-inet.adb
polyorb-binding_data-giop-inet.ads
polyorb-binding_data-giop.ads
polyorb-binding_data.ads
polyorb.ads
polyorb-annotations.ads
polyorb-utils.ads
polyorb-utils-chained_lists.ads
polyorb-utils-ilists.ads
polyorb-components.ads
polyorb-errors.ads
polyorb-smart_pointers.ads
polyorb-types.ads
polyorb-objects.ads
polyorb-qos.ads
polyorb-transport.ads
polyorb-asynch_ev.ads
polyorb-jobs.ads
polyorb-buffers.ads
polyorb-opaque.ads
polyorb-opaque-chunk_pools.ads
polyorb-giop_p.ads
polyorb-giop_p-tagged_components.ads
polyorb-qos-tagged_components.ads
polyorb-representations.ads
polyorb-any.ads
polyorb-representations-cdr.ads
polyorb-utils-dynamic_tables.ads
polyorb-representations-cdr-common.ads
polyorb-references.ads
polyorb-utils-strings.ads
polyorb-giop_p-transport_mechanisms.ads
polyorb-protocols.ads
polyorb-any-nvlist.ads
polyorb-binding_objects.ads
polyorb-filters.ads
polyorb-requests.ads
polyorb-any-exceptionlist.ads
polyorb-task_info.ads
polyorb-tasking.ads
polyorb-tasking-condition_variables.ads
polyorb-tasking-mutexes.ads
polyorb-tasking-threads.ads
polyorb-utils-simple_flags.ads
polyorb-protocols-giop.ads
polyorb-filters-iface.ads
polyorb-orb.ads
polyorb-binding_objects-lists.ads
polyorb-orb_controller.ads
polyorb-log.ads
polyorb-request_scheduler.ads
polyorb-tasking-idle_tasks_managers.ads
polyorb-obj_adapters.ads
polyorb-servants.ads
polyorb-utils-sockets.ads
polyorb-any-nvlist.ads
polyorb-binding_objects.ads
polyorb-filters.ads
polyorb-requests.ads
polyorb-any-exceptionlist.ads
polyorb-task_info.ads
polyorb-tasking.ads
polyorb-tasking-condition_variables.ads
polyorb-tasking-mutexes.ads
polyorb-tasking-threads.ads
polyorb-utils-simple_flags.ads
polyorb-protocols-giop.ads
polyorb-filters-iface.ads
polyorb-orb.ads
polyorb-binding_objects-lists.ads
polyorb-orb_controller.ads
polyorb-log.ads
polyorb-request_scheduler.ads
polyorb-tasking-idle_tasks_managers.ads
polyorb-obj_adapters.ads
polyorb-servants.ads
polyorb-utils-sockets.ads
polyorb-sockets.ads
polyorb-sockets_initialization.ads
polyorb-log.adb
polyorb-initialization.ads
polyorb-utils-strings-lists.ads

raised TYPES.UNRECOVERABLE_ERROR : comperr.adb:415


-- 
           Summary: verify_gimple failure preceded by "non-trivial
                    conversion at assignment" errors
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ada
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: oliver dot kellogg at eads dot com
  GCC host triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40805

[Bug ada/40805] verify_gimple failure preceded by "non-trivial conversion at assignment" errors

[oliver dot kellogg at eads dot com]

------- Comment #1 from oliver dot kellogg at eads dot com  2009-07-19 15:03 -------
Created an attachment (id=18228)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18228&action=view)
source files for reproducing the problem


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40805

[Bug ada/40805] verify_gimple failure preceded by "non-trivial conversion at assignment" errors

[oliver dot kellogg at eads dot com]

------- Comment #2 from oliver dot kellogg at eads dot com  2009-07-19 19:29 -------
Problem is also present on gcc-4_4-branch.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40805

[Bug ada/40805] verify_gimple failure preceded by "non-trivial conversion at assignment" errors

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2009-07-19 19:53 -------
Only if you build with checking enabled.  But at least that confirms it is an
Ada frontend issue, not an optimization issue (as on the 4.4 branch this
checking is only done right after gimplification).

polyorb-binding_data-giop-inet.adb:266:4: error: non-trivial conversion at
assignment
const struct polyorb__objects__object_id___XUB *
const struct ada__streams__stream_element_array___XUB *
D.3963.P_BOUNDS = D.3966;

the error says that the compiler would have liked to see a conversion
(NOP_EXPR) here, so the statement should have been

D.3963.P_BOUNDS = (const struct polyorb__objects__object_id___XUB *) D.3966;

instead.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-checking, ice-on-valid-
                   |                            |code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40805

[Bug ada/40805] verify_gimple failure preceded by "non-trivial conversion at assignment" errors

[oliver dot kellogg at eads dot com]

------- Comment #4 from oliver dot kellogg at eads dot com  2009-09-06 19:21 -------
I don't know what fixed it but it doesn't happen with trunk 20090819 and newer.


-- 

oliver dot kellogg at eads dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |WORKSFORME


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40805