Force mark sweep if size of map space is to big to allow forward pointers enc...

src/spaces.cc

 // Copyright 2006-2008 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 1717 matching lines @@
   head_ = NULL;
 }
 
 
 void FixedSizeFreeList::Free(Address start) {
 #ifdef DEBUG
   for (int i = 0; i < object_size_; i += kPointerSize) {
     Memory::Address_at(start + i) = kZapValue;
   }
 #endif
-  ASSERT(!FLAG_always_compact);  // We only use the freelists with mark-sweep.
+  // We only use the freelists with mark-sweep.
+  ASSERT(!MarkCompactCollector::IsCompacting());
   FreeListNode* node = FreeListNode::FromAddress(start);
   node->set_size(object_size_);
   node->set_next(head_);
   head_ = node->address();
   available_ += object_size_;
 }
 
 
 Object* FixedSizeFreeList::Allocate() {
   if (head_ == NULL) {
@@ skipping 1042 matching lines @@
                      reinterpret_cast<Object**>(object->address()
                                                 + Page::kObjectAreaSize),
                      allocation_top);
       PrintF("\n");
     }
   }
 }
 #endif  // DEBUG
 
 } }  // namespace v8::internal