Support pass-through of stub caller arguments

src/code-stubs.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 235 matching lines @@
 
  protected:
   // Generates the assembler code for the stub.
   virtual void Generate(MacroAssembler* masm) = 0;
 };
 
 
 struct CodeStubInterfaceDescriptor {
   CodeStubInterfaceDescriptor()
       : register_param_count_(-1),
+        stack_parameter_count_(NULL),
+        extra_expression_stack_count_(0),
         register_params_(NULL) { }
   int register_param_count_;
+  const Register* stack_parameter_count_;
+  int extra_expression_stack_count_;
   Register* register_params_;
   Address deoptimization_handler_;
 };
 
 
 class HGraph;
 struct Register;
 class HydrogenCodeStub : public CodeStub {
  public:
   // Retrieve the code for the stub. Generate the code if needed.
@@ skipping 1150 matching lines @@
   void Generate(MacroAssembler* masm);
 
   bool fp_registers_;
 
   DISALLOW_COPY_AND_ASSIGN(StoreArrayLiteralElementStub);
 };
 
 
 class StubFailureTrampolineStub : public PlatformCodeStub {
  public:
-  StubFailureTrampolineStub() {}
+  static const int kMaxExtraExpressionStackCount = 1;
+
+  explicit StubFailureTrampolineStub(int extra_expression_stack_count)
+      : extra_expression_stack_count_(extra_expression_stack_count) {}
 
  private:
   Major MajorKey() { return StubFailureTrampoline; }
-  int MinorKey() { return 0; }
+  int MinorKey() { return extra_expression_stack_count_; }
 
   void Generate(MacroAssembler* masm);
 
+  int extra_expression_stack_count_;
+
   DISALLOW_COPY_AND_ASSIGN(StubFailureTrampolineStub);
 };
 
 
 class ProfileEntryHookStub : public PlatformCodeStub {
  public:
   explicit ProfileEntryHookStub() {}
 
   // The profile entry hook function is not allowed to cause a GC.
   virtual bool SometimesSetsUpAFrame() { return false; }
@@ skipping 19 matching lines @@
 
   // The current function entry hook.
   static FunctionEntryHook entry_hook_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileEntryHookStub);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_CODE_STUBS_H_