[Bug c++/11513] New: ICE in push_template_decl_real cp/pt.c:2755, template member functions

[Bug c++/11513] New: ICE in push_template_decl_real cp/pt.c:2755, template member functions

[drtr at dial dot pipex dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11513

           Summary: ICE in push_template_decl_real cp/pt.c:2755, template
                    member functions
           Product: gcc
           Version: 3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: drtr at dial dot pipex dot com
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu

When parsing a member template function of a template, the compiler
crashes on variable definitions of the form 'struct foo b;'.
I think the problem is in the PROCESSING_REAL_TEMPLATE_DECL_P() macro
which gives the wrong result when within member template functions.

See the example below; when parsing struct foo b; the compiler crashes.
This may be caused by the use of PROCESSING_REAL_TEMPLATE_DECL_P() returning
1 in xref_tag() at cp/decl.c: 13297.

template <typename T>
struct bar                      // template_class_depth(bar<T>) = 1
{ 
    struct foo
    {
	int a;
    };

    template <typename U>
    int wom(U c)
    {
 	struct foo b;         // processing_template_decl = 2
    };
};

[Bug c++/11513] [3.3/3.4 Regression] ICE in push_template_decl_real cp/pt.c:2755, template member functions

[pinskia at physics dot uc dot edu]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11513


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |ice-on-valid-code
   Last reconfirmed|0000-00-00 00:00:00         |2003-07-13 18:37:27
               date|                            |
            Summary|ICE in                      |[3.3/3.4 Regression] ICE in
                   |push_template_decl_real     |push_template_decl_real
                   |cp/pt.c:2755, template      |cp/pt.c:2755, template
                   |member functions            |member functions


------- Additional Comments From pinskia at physics dot uc dot edu  2003-07-13 18:37 -------
I can confirm this on 2.95.3, 3.0.4, 3.2.3, 3.3.1 (20030707), and the mainline (20030713) 
but it did not ICE with 2.91.66 so this is a regression from that. An old regression but still 
a regression.

[Bug c++/11513] [3.3/3.4 Regression] ICE in push_template_decl_real cp/pt.c:2755, template member functions

[pinskia at physics dot uc dot edu]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11513


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |critical
           Priority|P2                          |P1
   Target Milestone|3.4                         |3.3.1


------- Additional Comments From pinskia at physics dot uc dot edu  2003-07-13 18:46 -------
I had forgot to change the target milestone because it is a regression.

[Bug c++/11513] [3.3/3.4 Regression] ICE in push_template_decl_real cp/pt.c:2755, template member functions

[neroden at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11513



------- Additional Comments From neroden at gcc dot gnu dot org  2003-07-14 03:38 -------
>I think the problem is in the PROCESSING_REAL_TEMPLATE_DECL_P() macro
>which gives the wrong result when within member template functions.
There are dozens of bug reports about member template functions.  I wonder how
many of them are linked to the same problem?...

[Bug c++/11513] [3.3/3.4 Regression] ICE in push_template_decl_real cp/pt.c:2755, template member functions

[lerdsuwa at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11513



------- Additional Comments From lerdsuwa at gcc dot gnu dot org  2003-07-18 14:48 -------
That problematic PROCESSING_REAL_TEMPLATE_DECL_P() macro
would be removed in 3.4 by my proposed fix to PR8442.
I am preparing an updated version now.  Not sure about
the 3.3 branch though.

[Bug c++/11513] [3.3/3.4 Regression] ICE in push_template_decl_real cp/pt.c:2755, template member functions

[lerdsuwa at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11513



------- Additional Comments From lerdsuwa at gcc dot gnu dot org  2003-07-19 13:05 -------
Patch for 3.4 is posted:

  http://gcc.gnu.org/ml/gcc-patches/2003-07/msg01960.html

For 3.3, I think we have to fix PROCESSING_REAL_TEMPLATE_DECL_P()
anyway, maybe in 3.3.2.

[Bug c++/11513] [3.3/3.4 Regression] ICE in push_template_decl_real cp/pt.c:2755, template member functions

[lerdsuwa at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11513


lerdsuwa at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |lerdsuwa at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED

[Bug c++/11513] [3.3/3.4 Regression] ICE in push_template_decl_real cp/pt.c:2755, template member functions

[lerdsuwa at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11513



------- Additional Comments From lerdsuwa at gcc dot gnu dot org  2003-07-20 11:01 -------
Patch submitted for 3.3 and mainline:

  http://gcc.gnu.org/ml/gcc-patches/2003-07/msg02009.html

[Bug c++/11513] [3.3/3.4 Regression] ICE in push_template_decl_real cp/pt.c:2755, template member functions

[drtr at dial dot pipex dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11513



------- Additional Comments From drtr at dial dot pipex dot com  2003-07-23 20:58 -------
Yes, that patch for 3.3 fixes my problem.

[Bug c++/11513] [3.3/3.4 Regression] ICE in push_template_decl_real cp/pt.c:2755, template member functions

[mmitchel at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11513



------- Additional Comments From mmitchel at gcc dot gnu dot org  2003-07-23 23:41 -------
Kriang --

Your patch http://gcc.gnu.org/ml/gcc-patches/2003-07/msg02009.html is OK for the
branch and the mainline.  Would you please apply it, and move the target for
this PR to 3.4?

Thanks,

-- Mark

[Bug c++/11513] [3.3/3.4 Regression] ICE in push_template_decl_real cp/pt.c:2755, template member functions

[cvs-commit at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11513



------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-07-24 11:29 -------
Subject: Bug 11513

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_3-branch
Changes by:	lerdsuwa@gcc.gnu.org	2003-07-24 11:29:51

Modified files:
	gcc/cp         : ChangeLog cp-tree.h 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/template: crash8.C 

Log message:
	PR c++/11513
	* cp-tree.h (PROCESSING_REAL_TEMPLATE_DECL_P): Use current_scope.
	
	* g++.dg/template/crash8.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.3076.2.187&r2=1.3076.2.188
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/cp-tree.h.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.776.2.28&r2=1.776.2.29
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.2261.2.243&r2=1.2261.2.244
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/crash8.C.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=NONE&r2=1.1.2.1

[Bug c++/11513] [3.4 Regression] ICE in push_template_decl_real cp/pt.c:2755, template member functions

[lerdsuwa at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11513


lerdsuwa at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[3.3/3.4 Regression] ICE in |[3.4 Regression] ICE in
                   |push_template_decl_real     |push_template_decl_real
                   |cp/pt.c:2755, template      |cp/pt.c:2755, template
                   |member functions            |member functions
   Target Milestone|3.3.1                       |3.4


------- Additional Comments From lerdsuwa at gcc dot gnu dot org  2003-07-24 11:39 -------
Move target to 3.4.  Patch committed to 3.3 (to be appeared in 3.3.1).
For 3.4, I'll apply the PROCESSING_REAL_TEMPLATE_DECL_P patch.  The one
for PR8442 still has to wait for approval.

[Bug c++/11513] [3.4 Regression] ICE in push_template_decl_real cp/pt.c:2755, template member functions

[cvs-commit at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11513



------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-07-24 11:56 -------
Subject: Bug 11513

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	lerdsuwa@gcc.gnu.org	2003-07-24 11:56:33

Modified files:
	gcc/cp         : ChangeLog cp-tree.h 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/template: crash8.C 

Log message:
	PR c++/11513
	* cp-tree.h (PROCESSING_REAL_TEMPLATE_DECL_P): Use current_scope.
	
	* g++.dg/template/crash8.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.3546&r2=1.3547
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/cp-tree.h.diff?cvsroot=gcc&r1=1.885&r2=1.886
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.2914&r2=1.2915
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/crash8.C.diff?cvsroot=gcc&r1=1.1&r2=1.2

[Bug c++/11513] [3.4 Regression] ICE in push_template_decl_real cp/pt.c:2755, template member functions

[reichelt at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11513


reichelt at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


------- Additional Comments From reichelt at gcc dot gnu dot org  2003-07-25 08:38 -------
Fixed for 3.3.1 and mainline.

[Bug c++/11513] [3.4 Regression] ICE in push_template_decl_real cp/pt.c:2755, template member functions

[jbuck at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11513


jbuck at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4                         |3.3.1