Reimplement dynamic frame alignment for frames that are compiled via OSR or have more than 2 double…

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 203 matching lines @@
                            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 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) { }
     virtual ~EntryGenerator() { }
@@ skipping 81 matching lines @@
   // 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_;
+  int has_alignment_padding_;
 
   // Input frame description.
   FrameDescription* input_;
   // Number of output frames.
   int output_count_;
   // Number of output js frames.
   int jsframe_count_;
   // Array of output frame descriptions.
   FrameDescription** output_;
 
@@ skipping 446 matching lines @@
   Object** expression_stack_;
   int source_position_;
 
   friend class Deoptimizer;
 };
 #endif
 
 } }  // namespace v8::internal
 
 #endif  // V8_DEOPTIMIZER_H_