Enable non-incremental code compaction.

src/incremental-marking.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 487 matching lines @@
   }
 }
 
 
 void IncrementalMarking::StartMarking(CompactionFlag flag) {
   if (FLAG_trace_incremental_marking) {
     PrintF("[IncrementalMarking] Start marking\n");
   }
 
   is_compacting_ = !FLAG_never_compact && (flag == ALLOW_COMPACTION) &&
-      heap_->mark_compact_collector()->StartCompaction();
+      heap_->mark_compact_collector()->StartCompaction(true);

[Erik Corry, 2012/02/07 08:12:58]

If we are going to have boolean arguments we should at least have a comment on
the call site to say what it means.

 
   state_ = MARKING;
 
   RecordWriteStub::Mode mode = is_compacting_ ?
       RecordWriteStub::INCREMENTAL_COMPACTION : RecordWriteStub::INCREMENTAL;
 
   PatchIncrementalMarkingRecordWriteStubs(heap_, mode);
 
   EnsureMarkingDequeIsCommitted();
 
@@ skipping 397 matching lines @@
   allocation_marking_factor_ = kInitialAllocationMarkingFactor;
   bytes_scanned_ = 0;
 }
 
 
 int64_t IncrementalMarking::SpaceLeftInOldSpace() {
   return heap_->MaxOldGenerationSize() - heap_->PromotedSpaceSize();
 }
 
 } }  // namespace v8::internal