Version 3.6.5

src/deoptimizer.h

 // Copyright 2011 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 68 matching lines @@
 class DeoptimizerData {
  public:
   DeoptimizerData();
   ~DeoptimizerData();
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
   void Iterate(ObjectVisitor* v);
 #endif
 
  private:
-  LargeObjectChunk* eager_deoptimization_entry_code_;
-  LargeObjectChunk* lazy_deoptimization_entry_code_;
+  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.
@@ skipping 65 matching lines @@
   static int patch_size();
 
   // Patch all stack guard checks in the unoptimized code to
   // unconditionally call replacement_code.
   static void PatchStackCheckCode(Code* unoptimized_code,
                                   Code* check_code,
                                   Code* replacement_code);
 
   // Patch stack guard check at instruction before pc_after in
   // the unoptimized code to unconditionally call replacement_code.
-  static void PatchStackCheckCodeAt(Address pc_after,
+  static void PatchStackCheckCodeAt(Code* unoptimized_code,
+                                    Address pc_after,
                                     Code* check_code,
                                     Code* replacement_code);
 
   // Change all patched stack guard checks in the unoptimized code
   // back to a normal stack guard check.
   static void RevertStackCheckCode(Code* unoptimized_code,
                                    Code* check_code,
                                    Code* replacement_code);
 
   // Change all patched stack guard checks in the unoptimized code
@@ skipping 17 matching lines @@
   static int GetOutputInfo(DeoptimizationOutputData* data,
                            unsigned node_id,
                            SharedFunctionInfo* shared);
 
   // Code generation support.
   static int input_offset() { return OFFSET_OF(Deoptimizer, input_); }
   static int output_count_offset() {
     return OFFSET_OF(Deoptimizer, output_count_);
   }
   static int output_offset() { return OFFSET_OF(Deoptimizer, output_); }
+  static int frame_alignment_marker_offset() {
+    return OFFSET_OF(Deoptimizer, frame_alignment_marker_); }
+  static int has_alignment_padding_offset() {
+    return OFFSET_OF(Deoptimizer, has_alignment_padding_);
+  }
 
   static int GetDeoptimizedCodeCount(Isolate* isolate);
 
   static const int kNotDeoptimizationEntry = -1;
 
   // Generators for the deoptimization entry code.
   class EntryGenerator BASE_EMBEDDED {
    public:
     EntryGenerator(MacroAssembler* masm, BailoutType type)
         : masm_(masm), type_(type) { }
@@ skipping 54 matching lines @@
   unsigned ComputeInputFrameSize() const;
   unsigned ComputeFixedSize(JSFunction* function) const;
 
   unsigned ComputeIncomingArgumentSize(JSFunction* function) const;
   unsigned ComputeOutgoingArgumentSize() const;
 
   Object* ComputeLiteral(int index) const;
 
   void AddDoubleValue(intptr_t slot_address, double value);
 
-  static LargeObjectChunk* CreateCode(BailoutType type);
+  static MemoryChunk* CreateCode(BailoutType type);
   static void GenerateDeoptimizationEntries(
       MacroAssembler* masm, int count, BailoutType type);
 
   // Weak handle callback for deoptimizing code objects.
   static void HandleWeakDeoptimizedCode(
       v8::Persistent<v8::Value> obj, void* data);
   static Code* FindDeoptimizingCodeFromAddress(Address addr);
   static void RemoveDeoptimizingCode(Code* code);
 
   // Fill the input from from a JavaScript frame. This is used when
   // the debugger needs to inspect an optimized frame. For normal
   // deoptimizations the input frame is filled in generated code.
   void FillInputFrame(Address tos, JavaScriptFrame* frame);
 
   Isolate* isolate_;
   JSFunction* function_;
   Code* optimized_code_;
   unsigned bailout_id_;
   BailoutType bailout_type_;
   Address from_;
   int fp_to_sp_delta_;
 
   // Input frame description.
   FrameDescription* input_;
   // Number of output frames.
   int output_count_;
   // Array of output frame descriptions.
   FrameDescription** output_;
 
+  // Frames can be dynamically padded on ia32 to align untagged doubles.
+  Object* frame_alignment_marker_;
+  intptr_t has_alignment_padding_;
+
   List<HeapNumberMaterializationDescriptor> deferred_heap_numbers_;
 
   static const int table_entry_size_;
 
   friend class FrameDescription;
   friend class DeoptimizingCodeListNode;
   friend class DeoptimizedFrameInfo;
 };
 
 
@@ skipping 389 matching lines @@
   Object** parameters_;
   Object** expression_stack_;
 
   friend class Deoptimizer;
 };
 #endif
 
 } }  // namespace v8::internal
 
 #endif  // V8_DEOPTIMIZER_H_