[Interpreter] TurboFan implementation of intrinsics.

src/compiler/interpreter-assembler.h

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_INTERPRETER_ASSEMBLER_H_
 #define V8_COMPILER_INTERPRETER_ASSEMBLER_H_
 
 // Clients of this interface shouldn't depend on lots of compiler internals.
 // Do not include anything from src/compiler here!
 #include "src/allocation.h"
@@ skipping 122 matching lines @@
                Node* arg2, Node* arg3, Node* arg4, Node* arg5);
 
   // Call runtime function.
   Node* CallRuntime(Node* function_id, Node* first_arg, Node* arg_count,
                     int return_size = 1);
   Node* CallRuntime(Runtime::FunctionId function_id, Node* arg1);
   Node* CallRuntime(Runtime::FunctionId function_id, Node* arg1, Node* arg2);
   Node* CallRuntime(Runtime::FunctionId function_id, Node* arg1, Node* arg2,
                     Node* arg3, Node* arg4);
 
+  // Optimization for a few supported intrinsics taking only one argument.
+  Node* IntrinsicOneArg(Node* function_id, Node* arg);
+
   // Jump relative to the current bytecode by |jump_offset|.
   void Jump(Node* jump_offset);
 
   // Jump relative to the current bytecode by |jump_offset| if the
   // word values |lhs| and |rhs| are equal.
   void JumpIfWordEqual(Node* lhs, Node* rhs, Node* jump_offset);
 
   // Returns from the function.
   void Return();
 
@@ skipping 35 matching lines @@
   Node* BytecodeOperandShortSignExtended(int operand_index);
 
   Node* CallN(CallDescriptor* descriptor, Node* code_target, Node** args);
   Node* CallIC(CallInterfaceDescriptor descriptor, Node* target, Node** args);
 
   // Returns BytecodeOffset() advanced by delta bytecodes. Note: this does not
   // update BytecodeOffset() itself.
   Node* Advance(int delta);
   Node* Advance(Node* delta);
 
+  // Helper methods to deal with IntrinsicOneArg.
+  Node* ToBoolean(Node* arg);
+  Node* IsJSReceiver(Node* arg);
+  Node* IsJSArray(Node* arg);
+
   // Starts next instruction dispatch at |new_bytecode_offset|.
   void DispatchTo(Node* new_bytecode_offset);
 
   // Abort operations for debug code.
   void AbortIfWordNotEqual(Node* lhs, Node* rhs, BailoutReason bailout_reason);
 
   // Private helpers which delegate to RawMachineAssembler.
   Isolate* isolate();
   Zone* zone();
 
   interpreter::Bytecode bytecode_;
   base::SmartPointer<RawMachineAssembler> raw_assembler_;
 
   Node* accumulator_;
   Node* bytecode_offset_;
   Node* context_;
 
   bool code_generated_;
 
   DISALLOW_COPY_AND_ASSIGN(InterpreterAssembler);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_INTERPRETER_ASSEMBLER_H_