Merged r14658 into trunk branch.

src/deoptimizer.h

 // Copyright 2012 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 80 matching lines @@
  public:
   virtual ~OptimizedFunctionFilter() {}
 
   virtual bool TakeFunction(JSFunction* function) = 0;
 };
 
 
 class Deoptimizer;
 
 
-class DeoptimizerData {
- public:
-  explicit DeoptimizerData(MemoryAllocator* allocator);
-  ~DeoptimizerData();
-
-#ifdef ENABLE_DEBUGGER_SUPPORT
-  void Iterate(ObjectVisitor* v);
-#endif
-
-  Code* FindDeoptimizingCode(Address addr);
-  void RemoveDeoptimizingCode(Code* code);
-
- private:
-  MemoryAllocator* allocator_;
-  int eager_deoptimization_entry_code_entries_;
-  int lazy_deoptimization_entry_code_entries_;
-  MemoryChunk* eager_deoptimization_entry_code_;
-  MemoryChunk* lazy_deoptimization_entry_code_;
-  Deoptimizer* current_;
-
-#ifdef ENABLE_DEBUGGER_SUPPORT
-  DeoptimizedFrameInfo* deoptimized_frame_info_;
-#endif
-
-  // List of deoptimized code which still have references from active stack
-  // frames. These code objects are needed by the deoptimizer when deoptimizing
-  // a frame for which the code object for the function function has been
-  // changed from the code present when deoptimizing was done.
-  DeoptimizingCodeListNode* deoptimizing_code_list_;
-
-  friend class Deoptimizer;
-
-  DISALLOW_COPY_AND_ASSIGN(DeoptimizerData);
-};
-
-
 class Deoptimizer : public Malloced {
  public:
   enum BailoutType {
     EAGER,
     LAZY,
+    SOFT,
     OSR,
     // This last bailout type is not really a bailout, but used by the
     // debugger to deoptimize stack frames to allow inspection.
     DEBUGGER
   };
 
+  static const int kBailoutTypesWithCodeEntry = SOFT + 1;
+
+  struct JumpTableEntry {
+    inline JumpTableEntry(Address entry,
+                          Deoptimizer::BailoutType type,
+                          bool frame)
+        : label(),
+          address(entry),
+          bailout_type(type),
+          needs_frame(frame) { }
+    Label label;
+    Address address;
+    Deoptimizer::BailoutType bailout_type;
+    bool needs_frame;
+  };
+
   static bool TraceEnabledFor(BailoutType deopt_type,
                               StackFrame::Type frame_type);
   static const char* MessageFor(BailoutType type);
 
   int output_count() const { return output_count_; }
 
   Code::Kind compiled_code_kind() const { return compiled_code_->kind(); }
 
   // Number of created JS frames. Not all created frames are necessarily JS.
   int jsframe_count() const { return jsframe_count_; }
@@ skipping 461 matching lines @@
   intptr_t* GetFrameSlotPointer(unsigned offset) {
     ASSERT(offset < frame_size_);
     return reinterpret_cast<intptr_t*>(
         reinterpret_cast<Address>(this) + frame_content_offset() + offset);
   }
 
   int ComputeFixedSize();
 };
 
 
+class DeoptimizerData {
+ public:
+  explicit DeoptimizerData(MemoryAllocator* allocator);
+  ~DeoptimizerData();
+
+#ifdef ENABLE_DEBUGGER_SUPPORT
+  void Iterate(ObjectVisitor* v);
+#endif
+
+  Code* FindDeoptimizingCode(Address addr);
+  void RemoveDeoptimizingCode(Code* code);
+
+ private:
+  MemoryAllocator* allocator_;
+  int deopt_entry_code_entries_[Deoptimizer::kBailoutTypesWithCodeEntry];
+  MemoryChunk* deopt_entry_code_[Deoptimizer::kBailoutTypesWithCodeEntry];
+  Deoptimizer* current_;
+
+#ifdef ENABLE_DEBUGGER_SUPPORT
+  DeoptimizedFrameInfo* deoptimized_frame_info_;
+#endif
+
+  // List of deoptimized code which still have references from active stack
+  // frames. These code objects are needed by the deoptimizer when deoptimizing
+  // a frame for which the code object for the function function has been
+  // changed from the code present when deoptimizing was done.
+  DeoptimizingCodeListNode* deoptimizing_code_list_;
+
+  friend class Deoptimizer;
+
+  DISALLOW_COPY_AND_ASSIGN(DeoptimizerData);
+};
+
+
 class TranslationBuffer BASE_EMBEDDED {
  public:
   explicit TranslationBuffer(Zone* zone) : contents_(256, zone) { }
 
   int CurrentIndex() const { return contents_.length(); }
   void Add(int32_t value, Zone* zone);
 
   Handle<ByteArray> CreateByteArray(Factory* factory);
 
  private:
@@ skipping 278 matching lines @@
   Object** expression_stack_;
   int source_position_;
 
   friend class Deoptimizer;
 };
 #endif
 
 } }  // namespace v8::internal
 
 #endif  // V8_DEOPTIMIZER_H_