[Bug lto/53019] [4.7 regression] ICE (segfault) with -flto=jobserver -fwhole-program

[Bug lto/53019] [4.7 regression] ICE (segfault) with -flto=jobserver -fwhole-program

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53019

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-04-24 23:03:11 UTC ---
This works on the trunk, we get undefined references.

Are you using gold or BFD ld?

[Bug lto/53019] [4.7 regression] ICE (segfault) with -flto=jobserver -fwhole-program

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53019

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.7.1

[Bug lto/53019] [4.7 regression] ICE (segfault) with -flto=jobserver -fwhole-program

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53019

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-04-26
     Ever Confirmed|0                           |1

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-04-26 14:20:19 UTC ---
Confirmed.  It is an ICE in set_is_used, the var annotation is NULL.  Called
from remove_unused_locals.

This sounds somewhat familiar ...

[Bug lto/53019] [4.7 regression] ICE (segfault) with -flto=jobserver -fwhole-program

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53019

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |WAITING

--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-05-30 14:38:37 UTC ---
Fixed on trunk, no longer reproduces on the 4.7 branch for me (rev. 188004),
reproduces with branch rev. 187228.  Can you re-check please?

[Bug lto/53019] [4.7 regression] ICE (segfault) with -flto=jobserver -fwhole-program

[kilobyte at angband dot pl]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53019

--- Comment #5 from Adam Borowski <kilobyte at angband dot pl> 2012-05-30 21:56:36 UTC ---
The changelog for Debian upload which included the fix is:

  * Update to SVN 20120509 (r187339) from the gcc-4_7-branch.
    - Fix PR libstdc++/53193, PR target/53272, PR tree-optimization/53239,
      PR tree-optimization/53195, PR target/52999, PR target/53228,
      PR tree-optimization/52633, PR tree-optimization/52870, PR target/48496,
      PR target/53199, PR target/52684, PR lto/52605, PR plugins/53126,
      PR debug/53174, PR target/53187, PR tree-optimization/53144,
      PR c++/53186, PR fortran/53255, PR fortran/53111, PR fortran/52864.
Previous one was SVN 20120502 (r187039).

I'll try trunk, although with its complex build system and me being quite busy,
I sadly don't promise to finish it by tonight.

[Bug lto/53019] [4.7 regression] ICE (segfault) with -flto=jobserver -fwhole-program

[kilobyte at angband dot pl]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53019

--- Comment #6 from Adam Borowski <kilobyte at angband dot pl> 2012-06-01 08:04:43 UTC ---
Ok, works correctly on current trunk as well.

Since the testcase is messy and vulnerable to small alterations, and I guess
the underlying bug fixes already include a test for it, it's probably pointless
to try to introduce a variant of this one.

Thus, nothing more to do here.  Thanks guys for the fix, let's close this one.

[Bug lto/53019] [4.7 regression] ICE (segfault) with -flto=jobserver -fwhole-program

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53019

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

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

--- Comment #7 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-06-01 09:12:08 UTC ---
Fixed.