Provide baseline GC version.

src/heap-inl.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 174 matching lines @@
 bool Heap::ShouldBePromoted(Address old_address, int object_size) {
   // An object should be promoted if:
   // - the object has survived a scavenge operation or
   // - to space is already 25% full.
   return old_address < new_space_.age_mark()
       || (new_space_.Size() + object_size) >= (new_space_.Capacity() >> 2);
 }
 
 
 void Heap::RecordWrite(Address address, int offset) {
+#ifndef BASELINE_GC
   if (new_space_.Contains(address)) return;
   ASSERT(!new_space_.FromSpaceContains(address));
   SLOW_ASSERT(Contains(address + offset));
   Page::FromAddress(address)->MarkRegionDirty(address + offset);
+#endif
 }
 
 
 void Heap::RecordWrites(Address address, int start, int len) {
+#ifndef BASELINE_GC
   if (new_space_.Contains(address)) return;
   ASSERT(!new_space_.FromSpaceContains(address));
   Page* page = Page::FromAddress(address);
   page->SetRegionMarks(page->GetRegionMarks() |
       page->GetRegionMaskForSpan(address + start, len * kPointerSize));
+#endif
 }
 
 
 OldSpace* Heap::TargetSpace(HeapObject* object) {
   InstanceType type = object->map()->instance_type();
   AllocationSpace space = TargetSpaceId(type);
   return (space == OLD_POINTER_SPACE)
       ? old_pointer_space_
       : old_data_space_;
 }
@@ skipping 28 matching lines @@
   ASSERT(IsAligned(byte_size, kPointerSize));
   CopyWords(reinterpret_cast<Object**>(dst),
             reinterpret_cast<Object**>(src),
             byte_size / kPointerSize);
 }
 
 
 void Heap::CopyBlockToOldSpaceAndUpdateRegionMarks(Address dst,
                                                    Address src,
                                                    int byte_size) {
+#ifndef BASELINE_GC
   ASSERT(IsAligned(byte_size, kPointerSize));
 
   Page* page = Page::FromAddress(dst);
   uint32_t marks = page->GetRegionMarks();
 
   for (int remaining = byte_size / kPointerSize;
        remaining > 0;
        remaining--) {
     Memory::Object_at(dst) = Memory::Object_at(src);
 
     if (Heap::InNewSpace(Memory::Object_at(dst))) {
       marks |= page->GetRegionMaskForAddress(dst);
     }
 
     dst += kPointerSize;
     src += kPointerSize;
   }
 
   page->SetRegionMarks(marks);
+#else
+  CopyBlock(dst, src, byte_size);
+#endif
 }
 
 
 void Heap::MoveBlock(Address dst, Address src, int byte_size) {
   ASSERT(IsAligned(byte_size, kPointerSize));
 
   int size_in_words = byte_size / kPointerSize;
 
   if ((dst < src) || (dst >= (src + size_in_words))) {
     ASSERT((dst >= (src + size_in_words)) ||
@@ skipping 13 matching lines @@
 }
 
 
 void Heap::MoveBlockToOldSpaceAndUpdateRegionMarks(Address dst,
                                                    Address src,
                                                    int byte_size) {
   ASSERT(IsAligned(byte_size, kPointerSize));
   ASSERT((dst >= (src + byte_size)) ||
          ((OffsetFrom(src) - OffsetFrom(dst)) >= kPointerSize));
 
+#ifndef BASELINE_GC
   CopyBlockToOldSpaceAndUpdateRegionMarks(dst, src, byte_size);
+#else
+  MoveBlock(dst, src, byte_size);
+#endif
 }
 
 
 void Heap::ScavengeObject(HeapObject** p, HeapObject* object) {
   ASSERT(InFromSpace(object));
 
   // We use the first word (where the map pointer usually is) of a heap
   // object to record the forwarding pointer.  A forwarding pointer can
   // point to an old space, the code space, or the to space of the new
   // generation.
@@ skipping 181 matching lines @@
 
 
 void ExternalStringTable::ShrinkNewStrings(int position) {
   new_space_strings_.Rewind(position);
   Verify();
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_INL_H_