[Bug c++/43080] New: ICE with anonymous union and -flto

[Bug c++/43080] New: ICE with anonymous union and -flto

[reichelt at gcc dot gnu dot org]

The following valid code snippet triggers an ICE on trunk when compiled with
"-flto -g":

=======================================
inline int foo()
{
  static union { int i; };
  return i;
}

void bar()
{
  foo();
}
=======================================

bug.cc: In function 'foo()':
bug.cc:5:1: internal compiler error: in gimple_decl_printable_name, at
gimple.c:4610
Please submit a full bug report, [etc.]


-- 
           Summary: ICE with anonymous union and -flto
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code, monitored, lto
          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=43080

[Bug c++/43080] ICE with anonymous union and -flto

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2010-02-15 15:03 -------
We remove anonymous names to not break cross-TU merging.  Looks like we need
to resurrect them or mark them as anonymous for merging instead of throwing
them away.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43080

[Bug c++/43080] ICE with anonymous union and -flto

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2010-04-23 16:22 -------
I have a fix.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rguenth at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-04-23 16:22:45
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43080

[Bug c++/43080] ICE with anonymous union and -flto

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2010-04-26 09:19 -------
Subject: Bug 43080

Author: rguenth
Date: Mon Apr 26 09:19:24 2010
New Revision: 158723

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=158723
Log:
2010-04-26  Richard Guenther  <rguenther@suse.de>

        PR lto/43080
        * gimple.c (gimple_decl_printable_name): Deal gracefully
        with a NULL DECL_NAME.

        * g++.dg/lto/20100423-3_0.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/lto/20100423-3_0.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimple.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43080

[Bug c++/43080] ICE with anonymous union and -flto

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2010-04-26 09:25 -------
Fixed.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
      Known to fail|                            |4.5.0
         Resolution|                            |FIXED
   Target Milestone|---                         |4.6.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43080

[Bug c++/43080] ICE with anonymous union and -flto

[rguenth at gcc dot gnu dot org]

------- Comment #5 from rguenth at gcc dot gnu dot org  2010-05-19 13:16 -------
Subject: Bug 43080

Author: rguenth
Date: Wed May 19 13:14:37 2010
New Revision: 159564

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=159564
Log:
2010-05-19  Richard Guenther  <rguenther@suse.de>

        Backport from mainline:
        2010-04-26  Richard Guenther  <rguenther@suse.de>

        PR lto/43455
        * tree-inline.c (tree_can_inline_p): Also check compatibility
        of return types.

        * gcc.dg/lto/20100423-1_0.c: New testcase.
        * gcc.dg/lto/20100423-1_1.c: Likewise.

        2010-04-23  Richard Guenther  <rguenther@suse.de>

        PR lto/42653
        * tree.c (free_lang_data_in_decl): Do not reset DECL_CONTEXT
        of FUNCTION_DECLs.

        * g++.dg/lto/20100423-1_0.C: New testcase.

        2010-04-26  Richard Guenther  <rguenther@suse.de>

        PR lto/42425
        * tree.c (free_lang_data_in_type): Do not free TYPE_CONTEXT
        if emitting debug information and it is either a function
        or a namespace decl.

        * g++.dg/lto/20100423-2_0.C: New testcase.

        2010-04-26  Richard Guenther  <rguenther@suse.de>

        PR lto/43080
        * gimple.c (gimple_decl_printable_name): Deal gracefully
        with a NULL DECL_NAME.

        * g++.dg/lto/20100423-3_0.C: New testcase.

        2010-04-30  Richard Guenther  <rguenther@suse.de>

        PR lto/43946
        * passes.c (init_optimization_passes): Move pass_ipa_free_lang_data
        first after all lowering passes.

        * gcc.dg/lto/20100430-1_0.c: New testcase.

Added:
    branches/gcc-4_5-branch/gcc/testsuite/g++.dg/lto/20100423-1_0.C
    branches/gcc-4_5-branch/gcc/testsuite/g++.dg/lto/20100423-2_0.C
    branches/gcc-4_5-branch/gcc/testsuite/g++.dg/lto/20100423-3_0.C
    branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/lto/20100423-1_0.c
    branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/lto/20100423-1_1.c
    branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/lto/20100430-1_0.c
Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/gimple.c
    branches/gcc-4_5-branch/gcc/passes.c
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_5-branch/gcc/tree-inline.c
    branches/gcc-4_5-branch/gcc/tree.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43080

[Bug c++/43080] ICE with anonymous union and -flto

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.6.0                       |4.5.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43080