[Bug c++/34937] New: [4.3 regression] ICE with attribute weak

[Bug c++/34937] New: [4.3 regression] ICE with attribute weak

[reichelt at gcc dot gnu dot org]

The following valid code snippet triggers an ICE since GCC 3.4.0:

============================================
template<int> struct A
{
  enum { a, b = a };
  void foo(A<b>) __attribute((weak));
};
============================================

bug.cc:5: internal compiler error: tree check: expected integer_cst, have
const_decl in tree_int_cst_sgn, at tree.c:3340
Please submit a full bug report, [etc.]


-- 
           Summary: [4.3 regression] ICE with attribute weak
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code, monitored
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34937

[Bug c++/34937] [4.1/4.2/4.3 regression] ICE with attribute weak

[reichelt at gcc dot gnu dot org]

-- 

reichelt at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.3 regression] ICE with   |[4.1/4.2/4.3 regression] ICE
                   |attribute weak              |with attribute weak
   Target Milestone|---                         |4.1.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34937

[Bug c++/34937] [4.1/4.2/4.3 regression] ICE with attribute weak

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2008-01-23 10:56 -------
Confirmed.  We mangle the function type and come along the CONST_DECL for b
which refers to the CONST_DECL of a.  Some recursion is missing somewhere
here.

But we should not mangle for this non-instantiated template anyway, which
happens if you remove the attribute.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
      Known to work|                            |3.3.6
           Priority|P3                          |P2
   Last reconfirmed|0000-00-00 00:00:00         |2008-01-23 10:56:18
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34937

[Bug c++/34937] [4.1/4.2/4.3 regression] ICE with attribute weak

[steven at gcc dot gnu dot org]

------- Comment #2 from steven at gcc dot gnu dot org  2008-01-23 16:30 -------
What would be the semantics of "weak" on a template member?  That is, how would
the weak reference be overridden?

What I'm looking for is an example of what GCC did with this declaration when
it was still accepted.

The question behind the question is: Should this be valid code? ;-)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34937

[Bug c++/34937] [4.1/4.2/4.3 regression] ICE with attribute weak

[jason at gcc dot gnu dot org]

-- 

jason at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jason at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2008-01-23 10:56:18         |2008-02-13 18:43:56
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34937

[Bug c++/34937] [4.1/4.2 regression] ICE with attribute weak

[jakub at gcc dot gnu dot org]

------- Comment #3 from jakub at gcc dot gnu dot org  2008-02-14 10:48 -------
Subject: Bug 34962

Author: jason
Date: Wed Feb 13 21:27:16 2008
New Revision: 132297

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=132297
Log:
        PR c++/34962, c++/34937, c++/34939
        * decl2.c (is_late_template_attribute): Always defer attributes
        vector_size and weak.

Added:
    trunk/gcc/testsuite/g++.dg/ext/tmplattr9.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/decl2.c


-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.1/4.2/4.3 regression] ICE|[4.1/4.2 regression] ICE
                   |with attribute weak         |with attribute weak


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34937

[Bug c++/34937] [4.1/4.2 regression] ICE with attribute weak

[jason at gcc dot gnu dot org]

------- Comment #4 from jason at gcc dot gnu dot org  2008-05-02 21:44 -------
*** Bug 34939 has been marked as a duplicate of this bug. ***


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34937

[Bug c++/34937] [4.2 regression] ICE with attribute weak

[jsm28 at gcc dot gnu dot org]

------- Comment #5 from jsm28 at gcc dot gnu dot org  2008-07-04 22:30 -------
Closing 4.1 branch.


-- 

jsm28 at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.1/4.2 regression] ICE    |[4.2 regression] ICE with
                   |with attribute weak         |attribute weak
   Target Milestone|4.1.3                       |4.2.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34937

[Bug c++/34937] [4.2 regression] ICE with attribute weak

[jason at gcc dot gnu dot org]

------- Comment #6 from jason at gcc dot gnu dot org  2008-12-02 17:08 -------
Fixed in 4.3.


-- 

jason at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34937

[Bug c++/34937] [4.2 regression] ICE with attribute weak

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.2.5                       |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34937