Get rid of CodeStub::TryGetCode.

src/code-stubs.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 100 matching lines @@
 #define DEF_ENUM(name) name,
     CODE_STUB_LIST(DEF_ENUM)
 #undef DEF_ENUM
     NoCache,  // marker for stubs that do custom caching
     NUMBER_OF_IDS
   };
 
   // Retrieve the code for the stub. Generate the code if needed.
   Handle<Code> GetCode();
 
-  // Retrieve the code for the stub if already generated.  Do not
-  // generate the code if not already generated and instead return a
-  // retry after GC Failure object.
-  MUST_USE_RESULT MaybeObject* TryGetCode();
-
   static Major MajorKeyFromKey(uint32_t key) {
     return static_cast<Major>(MajorKeyBits::decode(key));
   }
   static int MinorKeyFromKey(uint32_t key) {
     return MinorKeyBits::decode(key);
   }
 
   // Gets the major key from a code object that is a code stub or binary op IC.
   static Major GetMajorKey(Code* code_stub) {
     return static_cast<Major>(code_stub->major_key());
@@ skipping 17 matching lines @@
   static void GenerateFPStubs();
 
   // Some stubs put untagged junk on the stack that cannot be scanned by the
   // GC.  This means that we must be statically sure that no GC can occur while
   // they are running.  If that is the case they should override this to return
   // true, which will cause an assertion if we try to call something that can
   // GC or if we try to put a stack frame on top of the junk, which would not
   // result in a traversable stack.
   virtual bool SometimesSetsUpAFrame() { return true; }
 
+  // Lookup the code in the (possibly custom) cache.
+  bool FindCodeInCache(Code** code_out);
+
  protected:
   static const int kMajorBits = 6;
   static const int kMinorBits = kBitsPerInt - kSmiTagSize - kMajorBits;
 
  private:
-  // Lookup the code in the (possibly custom) cache.
-  bool FindCodeInCache(Code** code_out);
-
   // Nonvirtual wrapper around the stub-specific Generate function.  Call
   // this function to set up the macro assembler and generate the code.
   void GenerateCode(MacroAssembler* masm);
 
   // Generates the assembler code for the stub.
   virtual void Generate(MacroAssembler* masm) = 0;
 
   // Perform bookkeeping required after code generation when stub code is
   // initially generated.
   void RecordCodeGeneration(Code* code, MacroAssembler* masm);
 
   // Finish the code object after it has been generated.
   virtual void FinishCode(Code* code) { }
 
-  // Returns true if TryGetCode should fail if it failed
-  // to register newly generated stub in the stub cache.
-  virtual bool MustBeInStubCache() { return false; }
-
   // Activate newly generated stub. Is called after
   // registering stub in the stub cache.
   virtual void Activate(Code* code) { }
 
   // Returns information for computing the number key.
   virtual Major MajorKey() = 0;
   virtual int MinorKey() = 0;
 
   // BinaryOpStub needs to override this.
   virtual int GetCodeKind();
@@ skipping 866 matching lines @@
   int MinorKey() { return 0; }
 
   void Generate(MacroAssembler* masm);
 
   DISALLOW_COPY_AND_ASSIGN(StoreArrayLiteralElementStub);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_CODE_STUBS_H_