c++/7639: g++ 3.3 ICE in operand_subword

[snyder@fnal.gov]

>Number:         7639
>Category:       c++
>Synopsis:       g++ 3.3 ICE in operand_subword
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-illegal-code
>Submitter-Id:   net
>Arrival-Date:   Mon Aug 19 15:05:59 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     scott snyder
>Release:        3.3 20020819 (experimental)
>Organization:
<organization of PR author (multiple lines)>
>Environment:
System: Linux karma 2.4.9-13 #1 Tue Oct 30 20:11:04 EST 2001 i686 unknown
Architecture: i686

	<machine, os, target, libraries (multiple lines)>
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: ../egcs/configure --prefix=/usr/local/egcs --enable-threads=posix --enable-long-long : (reconfigured)  : (reconfigured) 
>Description:

g++ crashes compiling the (invalid) code below.

$ g++ -c  crash1.cc 
crash1.cc: In instantiation of `ACE_Cleanup_Adapter<ACE_Null_Mutex>':
crash1.cc:11:   instantiated from here
crash1.cc:8: error: `ACE_Cleanup_Adapter<ACE_Null_Mutex>::object_' has 
   incomplete type
crash1.cc:1: error: forward declaration of `struct ACE_Null_Mutex'
crash1.cc: In member function `TYPE& ACE_Cleanup_Adapter<TYPE>::object() [with 
   TYPE = ACE_Null_Mutex]':
crash1.cc:11:   instantiated from here
crash1.cc:7: internal compiler error: Internal compiler error in 
   operand_subword, at emit-rtl.c:1546
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
$

>How-To-Repeat:

-------------------------------------------------------
class ACE_Null_Mutex;

template <class TYPE>
struct ACE_Cleanup_Adapter
{
  TYPE &object ()
  { return object_; }
  TYPE object_;
};

template class ACE_Cleanup_Adapter<ACE_Null_Mutex>;

-------------------------------------------------------

>Fix:
	<how to correct or work around the problem, if known (multiple lines)>
>Release-Note:
>Audit-Trail:
>Unformatted:
 SEND-PR: Leave "Confidential" as "no"; all GCC PRs are public.
 SEND-PR: critical     GCC is completely not operational; no work-around known.
 SEND-PR: serious      GCC is not working properly; a work-around is possible.
 SEND-PR: non-critical Report indicates minor problem.
 SEND-PR: medium       The problem should be solved in the next release.
 SEND-PR: low          The problem should be solve in a future release.
 SEND-PR: doc-bug          The documentation is incorrect.
 SEND-PR: accepts-illegal  GCC fails to reject erroneous code.
 SEND-PR: rejects-legal    GCC gives an error message for correct code.
 SEND-PR: wrong-code       The machine code generated by gcc is incorrect.
 SEND-PR: ice-on-legal-code   GCC gives an Internal Compiler Error (ICE)
 SEND-PR:                     for correct code
 SEND-PR: ice-on-illegal-code GCC gives an ICE instead of reporting an error
 SEND-PR: pessimizes-code     GCC misses an important optimization opportunity
 SEND-PR: sw-bug              Software bug of some other class than above
 SEND-PR: change-request      A feature in GCC is missing.
 SEND-PR: support             I need help with gcc.