Object pool with support for untagged entries.

runtime/vm/assembler_ia32.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_ASSEMBLER_IA32_H_
 #define VM_ASSEMBLER_IA32_H_
 
 #ifndef VM_ASSEMBLER_H_
 #error Do not include assembler_ia32.h directly; use assembler.h instead.
 #endif
@@ skipping 788 matching lines @@
 
   // Count the fixups that produce a pointer offset, without processing
   // the fixups.
   intptr_t CountPointerOffsets() const {
     return buffer_.CountPointerOffsets();
   }
   const ZoneGrowableArray<intptr_t>& GetPointerOffsets() const {
     return buffer_.pointer_offsets();
   }
 
-  const GrowableObjectArray& object_pool_data() const {
-    return object_pool_.data();
+  ObjectPoolWrapper& object_pool_wrapper() { return object_pool_wrapper_; }
+
+  RawObjectPool* MakeObjectPool() {
+    return object_pool_wrapper_.MakeObjectPool();
   }
 
-  ObjectPool& object_pool() { return object_pool_; }
-
   void FinalizeInstructions(const MemoryRegion& region) {
     buffer_.FinalizeInstructions(region);
   }
 
   // Set up a Dart frame on entry with a frame pointer and PC information to
   // enable easy access to the RawInstruction object of code corresponding
   // to this frame.
   // The dart frame layout is as follows:
   //   ....
   //   ret PC
@@ skipping 160 matching lines @@
   // in DEBUG mode, verifies that 'address' has content of type 'old_content'.
   void VerifyHeapWord(const Address& address, FieldContent old_content);
   void VerifiedWrite(const Address& dest,
                      Register value,
                      FieldContent old_content);
   void UnverifiedStoreOldObject(const Address& dest, const Object& value);
 
   int32_t jit_cookie();
 
   AssemblerBuffer buffer_;
-  ObjectPool object_pool_;
+  ObjectPoolWrapper object_pool_wrapper_;
   intptr_t prologue_offset_;
   int32_t jit_cookie_;
   GrowableArray<CodeComment*> comments_;
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(Assembler);
 };
 
 
 inline void Assembler::EmitUint8(uint8_t value) {
@@ skipping 22 matching lines @@
 }
 
 
 inline void Assembler::EmitOperandSizeOverride() {
   EmitUint8(0x66);
 }
 
 }  // namespace dart
 
 #endif  // VM_ASSEMBLER_IA32_H_