Provide baseline GC version.

src/mark-compact.h

 // 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 282 matching lines @@
   //          bits per map word for the forwarding address.
   //
   //          The Page::mc_first_forwarded field contains the (nonencoded)
   //          forwarding address of the first live object in the page.
   //
   //          In both the new space and the paged spaces, a linked list
   //          of live regions is constructructed (linked through
   //          pointers in the non-live region immediately following each
   //          live region) to speed further passes of the collector.
 
+#ifndef BASELINE_GC
   // Encodes forwarding addresses of objects in compactable parts of the
   // heap.
   static void EncodeForwardingAddresses();
 
   // Encodes the forwarding addresses of objects in new space.
   static void EncodeForwardingAddressesInNewSpace();
 
   // Function template to encode the forwarding addresses of objects in
   // paged spaces, parameterized by allocation and non-live processing
   // functions.
   template<AllocationFunction Alloc, ProcessNonLiveFunction ProcessNonLive>
   static void EncodeForwardingAddressesInPagedSpace(PagedSpace* space);
+#endif
 
   // Iterates live objects in a space, passes live objects
   // to a callback function which returns the heap size of the object.
   // Returns the number of live objects iterated.
   static int IterateLiveObjects(NewSpace* space, HeapObjectCallback size_f);
   static int IterateLiveObjects(PagedSpace* space, HeapObjectCallback size_f);
 
   // Iterates the live objects between a range of addresses, returning the
   // number of live objects.
   static int IterateLiveObjectsInRange(Address start, Address end,
                                        HeapObjectCallback size_func);
 
   // If we are not compacting the heap, we simply sweep the spaces except
   // for the large object space, clearing mark bits and adding unmarked
   // regions to each space's free list.
   static void SweepSpaces();
 
+#ifndef BASELINE_GC
   // -----------------------------------------------------------------------
   // Phase 3: Updating pointers in live objects.
   //
   //  Before: Same as after phase 2 (compacting collection).
   //
   //   After: All pointers in live objects, including encoded map
   //          pointers, are updated to point to their target's new
   //          location.
 
   friend class UpdatingVisitor;  // helper for updating visited objects
@@ skipping 39 matching lines @@
 
   // Helper function.
   static inline int RelocateOldNonCodeObject(HeapObject* obj,
                                              PagedSpace* space);
 
   // Relocates an object in the code space.
   static int RelocateCodeObject(HeapObject* obj);
 
   // Copy a new object.
   static int RelocateNewObject(HeapObject* obj);
+#endif
 
 #ifdef DEBUG
   // -----------------------------------------------------------------------
   // Debugging variables, functions and classes
   // Counters used for debugging the marking phase of mark-compact or
   // mark-sweep collection.
 
   // Size of live objects in Heap::to_space_.
   static int live_young_objects_size_;
 
@@ skipping 23 matching lines @@
 
   friend class UnmarkObjectVisitor;
   static void UnmarkObject(HeapObject* obj);
 #endif
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_MARK_COMPACT_H_