[Bug tree-optimization/47190] New: [4.5/4.6 Regression] ICE: in function_and_variable_visibility, at ipa.c:934 with static weakref variable

[Bug tree-optimization/47190] New: [4.5/4.6 Regression] ICE: in function_and_variable_visibility, at ipa.c:934 with static weakref variable

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47190

           Summary: [4.5/4.6 Regression] ICE: in
                    function_and_variable_visibility, at ipa.c:934 with
                    static weakref variable
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu


This might be a known problem, but bugzilla search didn't return any results

----- testcase.c -----
static int i __attribute__ ((weakref));
----------------------

Compiler output:
$ gcc testcase.c
testcase.c:1:1: internal compiler error: in function_and_variable_visibility,
at ipa.c:934
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


(gdb) bt
#0  fancy_abort (file=0x11b8518
"/usr/portage/distfiles/svn-src/gcc/trunk/gcc/ipa.c", line=934, 
    function=0x11b86e0 "function_and_variable_visibility") at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/diagnostic.c:892
#1  0x0000000000b1c477 in function_and_variable_visibility (whole_program=0
'\000')
    at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/ipa.c:933
#2  0x00000000007f1e56 in execute_one_pass (pass=0x163cd00) at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/passes.c:1553
#3  0x00000000007f258a in execute_ipa_pass_list (pass=0x163cd00)
    at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/passes.c:1920
#4  0x0000000000af9d81 in ipa_passes () at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/cgraphunit.c:1722
#5  cgraph_optimize () at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/cgraphunit.c:1794
#6  0x0000000000af9fda in cgraph_finalize_compilation_unit ()
    at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cgraphunit.c:1042
#7  0x0000000000509d6c in c_write_global_declarations () at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/c-decl.c:9843
#8  0x00000000008db9e6 in compile_file (argc=12, argv=0x7fffffffdaf8)
    at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/toplev.c:591
#9  do_compile (argc=12, argv=0x7fffffffdaf8) at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/toplev.c:1874
#10 toplev_main (argc=12, argv=0x7fffffffdaf8) at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/toplev.c:1937
#11 0x00007ffff6586bbd in __libc_start_main () from /lib/libc.so.6
#12 0x00000000004f0955 in _start ()

Tested revisions:
r168535 - crash
4.5 r168062 - crash
4.4 r168062 - OK

[Bug tree-optimization/47190] [4.5/4.6 Regression] ICE: in function_and_variable_visibility, at ipa.c:934 with static weakref variable

[hubicka at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47190

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2011.01.06 15:50:01
                 CC|                            |hubicka at gcc dot gnu.org
     Ever Confirmed|0                           |1

--- Comment #1 from Jan Hubicka <hubicka at gcc dot gnu.org> 2011-01-06 15:50:01 UTC ---
Hmm, this is ICE on invalid.  Weakref should be coupled with alias attribute. 
I guess finish function and variable attributes should output errors and drop
the attribute.

[Bug tree-optimization/47190] [4.5/4.6 Regression] ICE: in function_and_variable_visibility, at ipa.c:934 with static weakref variable

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47190

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.5.3

[Bug tree-optimization/47190] [4.5/4.6 Regression] ICE: in function_and_variable_visibility, at ipa.c:934 with static weakref variable

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47190

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2
                 CC|                            |jakub at gcc dot gnu.org

[Bug tree-optimization/47190] [4.5/4.6 Regression] ICE: in function_and_variable_visibility, at ipa.c:934 with static weakref variable

[hubicka at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47190

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot       |hubicka at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #2 from Jan Hubicka <hubicka at gcc dot gnu.org> 2011-01-22 15:52:07 UTC ---
Testing patch...

[Bug tree-optimization/47190] [4.5/4.6 Regression] ICE: in function_and_variable_visibility, at ipa.c:934 with static weakref variable

[hubicka at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47190

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

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

--- Comment #3 from Jan Hubicka <hubicka at gcc dot gnu.org> 2011-01-26 14:03:58 UTC ---
Author: hubicka
Date: Wed Jan 26 14:03:54 2011
New Revision: 169288

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169288
Log:
    PR tree-optimization/47190
     * cgraphunit.c (process_common_attributes): New function.
        (process_function_and_variable_attributes): Use it.
    * gcc.dg/attr-weakref-3.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/attr-weakref-3.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cgraphunit.c
    trunk/gcc/testsuite/ChangeLog

--- Comment #4 from Jan Hubicka <hubicka at gcc dot gnu.org> 2011-01-26 14:19:55 UTC ---
Fixed.

[Bug tree-optimization/47190] [4.5/4.6 Regression] ICE: in function_and_variable_visibility, at ipa.c:934 with static weakref variable

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47190

H.J. Lu <hjl.tools at gmail dot com> changed:

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

--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> 2011-01-26 14:45:49 UTC ---
Any plan for backport? If not, we should reset target milestone.

[Bug tree-optimization/47190] [4.5 Regression] ICE: in function_and_variable_visibility, at ipa.c:934 with static weakref variable

[hubicka at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47190

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.5/4.6 Regression] ICE:   |[4.5 Regression] ICE: in
                   |in                          |function_and_variable_visib
                   |function_and_variable_visib |ility, at ipa.c:934 with
                   |ility, at ipa.c:934 with    |static weakref variable
                   |static weakref variable     |

--- Comment #6 from Jan Hubicka <hubicka at gcc dot gnu.org> 2011-01-26 14:55:55 UTC ---
I am surprised that this ICEs at 4.5, too, since I was under impression that
the sanity check was introduced in 4.6 timeframe.
Anyway, backporting is easy, so I will commit it to 4.5 branch if it is
approved for so.

Removing 4.6 from regression list.

[Bug tree-optimization/47190] [4.5 Regression] ICE: in function_and_variable_visibility, at ipa.c:934 with static weakref variable

[dnovillo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47190

--- Comment #7 from Diego Novillo <dnovillo at gcc dot gnu.org> 2011-02-02 17:52:55 UTC ---
Author: dnovillo
Date: Wed Feb  2 17:52:42 2011
New Revision: 169617

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169617
Log:
    PR tree-optimization/47190
     * cgraphunit.c (process_common_attributes): New function.
        (process_function_and_variable_attributes): Use it.
    * gcc.dg/attr-weakref-3.c: New testcase.

Added:
    branches/google/integration/gcc/testsuite/gcc.dg/attr-weakref-3.c
Modified:
    branches/google/integration/gcc/ChangeLog
    branches/google/integration/gcc/cgraphunit.c
    branches/google/integration/gcc/testsuite/ChangeLog

[Bug tree-optimization/47190] [4.5 Regression] ICE: in function_and_variable_visibility, at ipa.c:934 with static weakref variable

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47190

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.5.3                       |4.5.4

--- Comment #8 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-04-28 14:51:38 UTC ---
GCC 4.5.3 is being released, adjusting target milestone.

[Bug tree-optimization/47190] [4.5 Regression] ICE: in function_and_variable_visibility, at ipa.c:934 with static weakref variable

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47190

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
      Known to work|                            |4.6.0
         Resolution|                            |FIXED
   Target Milestone|4.5.4                       |4.6.0
      Known to fail|4.6.0                       |

--- Comment #9 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-02 09:48:52 UTC ---
Fixed on the 4.6 branch.