Port inlining of type checks in call ICs for API functions to x64 and arm (is...

src/stub-cache.h

 // Copyright 2006-2008 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 597 matching lines @@
  public:
   explicit ConstructStubCompiler() {}
 
   Object* CompileConstructStub(SharedFunctionInfo* shared);
 
  private:
   Object* GetCode();
 };
 
 
+// Holds information about possible function call optimizations.
+class CallOptimization BASE_EMBEDDED {
+ public:
+  explicit CallOptimization(LookupResult* lookup);
+
+  explicit CallOptimization(JSFunction* function);
+
+  bool is_constant_call() const {
+    return constant_function_ != NULL;
+  }
+
+  JSFunction* constant_function() const {
+    ASSERT(constant_function_ != NULL);
+    return constant_function_;
+  }
+
+  bool is_simple_api_call() const {
+    return is_simple_api_call_;
+  }
+
+  FunctionTemplateInfo* expected_receiver_type() const {
+    ASSERT(is_simple_api_call_);
+    return expected_receiver_type_;
+  }
+
+  CallHandlerInfo* api_call_info() const {
+    ASSERT(is_simple_api_call_);
+    return api_call_info_;
+  }
+
+  // Returns the depth of the object having the expected type in the
+  // prototype chain between the two arguments.
+  int GetPrototypeDepthOfExpectedType(JSObject* object,
+                                      JSObject* holder) const;
+
+ private:
+  void Initialize(JSFunction* function);
+
+  // Determines whether the given function can be called using the
+  // fast api call builtin.
+  void AnalyzePossibleApiFunction(JSFunction* function);
+
+  JSFunction* constant_function_;
+  bool is_simple_api_call_;
+  FunctionTemplateInfo* expected_receiver_type_;
+  CallHandlerInfo* api_call_info_;
+};
+
+
 typedef Object* (*CustomCallGenerator)(CallStubCompiler* compiler,
                                        Object* object,
                                        JSObject* holder,
                                        JSFunction* function,
                                        String* name,
                                        StubCompiler::CheckType check);
 
 
 Object* CompileArrayPushCall(CallStubCompiler* compiler,
                              Object* object,
                              JSObject* holder,
                              JSFunction* function,
                              String* name,
                              StubCompiler::CheckType check);
 
 
 Object* CompileArrayPopCall(CallStubCompiler* compiler,
                             Object* object,
                             JSObject* holder,
                             JSFunction* function,
                             String* name,
                             StubCompiler::CheckType check);
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_STUB_CACHE_H_