Object pool with support for untagged entries.

runtime/vm/assembler_mips.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_MIPS_H_
 #define VM_ASSEMBLER_MIPS_H_
 
 #ifndef VM_ASSEMBLER_H_
 #error Do not include assembler_mips.h directly; use assembler.h instead.
 #endif
@@ skipping 245 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);
   }
 
   bool use_far_branches() const {
     return FLAG_use_far_branches || use_far_branches_;
   }
 
   void set_use_far_branches(bool b) {
     ASSERT(buffer_.Size() == 0);
@@ skipping 639 matching lines @@
   }
 
   void BranchLink(const ExternalLabel* label) {
     ASSERT(!in_delay_slot_);
     LoadImmediate(T9, label->address());
     jalr(T9);
   }
 
   void BranchLinkPatchable(const ExternalLabel* label) {
     ASSERT(!in_delay_slot_);
-    const int32_t offset = Array::element_offset(
-        object_pool_.FindExternalLabel(label, kPatchable));
+    const int32_t offset = ObjectPool::element_offset(
+        object_pool_wrapper_.FindExternalLabel(label, kPatchable));
     LoadWordFromPoolOffset(T9, offset - kHeapObjectTag);
     jalr(T9);
     delay_slot_available_ = false;  // CodePatcher expects a nop.
   }
 
   void Drop(intptr_t stack_elements) {
     ASSERT(stack_elements >= 0);
     if (stack_elements > 0) {
       addiu(SP, SP, Immediate(stack_elements * kWordSize));
     }
@@ skipping 664 matching lines @@
 
   bool allow_constant_pool() const {
     return allow_constant_pool_;
   }
   void set_allow_constant_pool(bool b) {
     allow_constant_pool_ = b;
   }
 
  private:
   AssemblerBuffer buffer_;
-  ObjectPool object_pool_;  // Objects and patchable jump targets.
+  ObjectPoolWrapper object_pool_wrapper_;
 
   intptr_t prologue_offset_;
 
   bool use_far_branches_;
   bool delay_slot_available_;
   bool in_delay_slot_;
 
   class CodeComment : public ZoneAllocated {
    public:
     CodeComment(intptr_t pc_offset, const String& comment)
@@ skipping 112 matching lines @@
                                   Register value,
                                   Label* no_update);
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(Assembler);
 };
 
 }  // namespace dart
 
 #endif  // VM_ASSEMBLER_MIPS_H_