[Bug lto/60567] New: lto1 ICE in add_symbol_to_partition, at lto/lto-partition.c:233

["burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60567

            Bug ID: 60567
           Summary: lto1 ICE in add_symbol_to_partition, at
                    lto/lto-partition.c:233
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
          Assignee: unassigned at gcc dot gnu.org
          Reporter: burnus at gcc dot gnu.org
                CC: rguenth at gcc dot gnu.org

Possibly related: PR56775, PR56963 and PR57715 - or not.

The following code ICEs when doing with GCC 4.9:

$ gcc -c -flto test13.ii
$ gcc -r -nostdlib test13.o -flto
lto1: internal compiler error: in add_symbol_to_partition, at
lto/lto-partition.c:233
0x5b4dc4 add_symbol_to_partition
        ../../gcc/lto/lto-partition.c:231
0x5b4e69 add_references_to_partition
        ../../gcc/lto/lto-partition.c:94
0x5b4f9a add_symbol_to_partition_1
        ../../gcc/lto/lto-partition.c:168
0x5b649e lto_balanced_map()
        ../../gcc/lto/lto-partition.c:727
0x5b08a0 do_whole_program_analysis
        ../../gcc/lto/lto.c:3276
0x5b08a0 lto_main()
        ../../gcc/lto/lto.c:3416


Testcase:

#pragma implementation
class EIdent {   };
#pragma interface
class CellInsertedListener {
  virtual void cellInserted( const EIdent& newCell ) = 0;
};
class LayerListUpdateListener {
  virtual void layerRemoved( const EIdent& layerId ) = 0;
};
class VwBboxCacheMaster :
   public CellInsertedListener,
   public LayerListUpdateListener {
  virtual void layerRemoved (const EIdent&) {  }
};