[Interpreter] Fill out function prologue support.

src/interpreter/bytecode-array-builder.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_INTERPRETER_BYTECODE_ARRAY_BUILDER_H_
 #define V8_INTERPRETER_BYTECODE_ARRAY_BUILDER_H_
 
 #include <vector>
 
 #include "src/ast.h"
 #include "src/identity-map.h"
 #include "src/interpreter/bytecodes.h"
 #include "src/zone.h"
 #include "src/zone-containers.h"
 
 namespace v8 {
 namespace internal {
 
 class Isolate;
 
 namespace interpreter {
 
 class BytecodeLabel;
 class Register;
 
+// TODO(rmcilroy): Unify this with CreateArgumentsParameters::Type in Turbofan
+// when rest parameters implementation has settled down.
+enum class CreateArgumentsType { kMappedArguments, kUnmappedArguments };
+
 class BytecodeArrayBuilder {
  public:
   BytecodeArrayBuilder(Isolate* isolate, Zone* zone);
   Handle<BytecodeArray> ToBytecodeArray();
 
   // Set the number of parameters expected by function.
   void set_parameter_count(int number_of_params);
   int parameter_count() const {
     DCHECK_GE(parameter_count_, 0);
     return parameter_count_;
@@ skipping 68 matching lines @@
   BytecodeArrayBuilder& StoreNamedProperty(Register object, size_t name_index,
                                            int feedback_slot,
                                            LanguageMode language_mode);
   BytecodeArrayBuilder& StoreKeyedProperty(Register object, Register key,
                                            int feedback_slot,
                                            LanguageMode language_mode);
 
   // Create a new closure for the SharedFunctionInfo in the accumulator.
   BytecodeArrayBuilder& CreateClosure(PretenureFlag tenured);
 
+  // Create a new arguments object in the accumulator.
+  BytecodeArrayBuilder& CreateArguments(CreateArgumentsType type);
+
   // Literals creation.  Constant elements should be in the accumulator.
   BytecodeArrayBuilder& CreateRegExpLiteral(int literal_index, Register flags);
   BytecodeArrayBuilder& CreateArrayLiteral(int literal_index, int flags);
   BytecodeArrayBuilder& CreateObjectLiteral(int literal_index, int flags);
 
   // Push the context in accumulator as the new context, and store in register
   // |context|.
   BytecodeArrayBuilder& PushContext(Register context);
 
   // Pop the current context and replace with |context|.
@@ skipping 67 matching lines @@
 
   static Bytecode BytecodeForBinaryOperation(Token::Value op);
   static Bytecode BytecodeForCountOperation(Token::Value op);
   static Bytecode BytecodeForCompareOperation(Token::Value op);
   static Bytecode BytecodeForLoadIC(LanguageMode language_mode);
   static Bytecode BytecodeForKeyedLoadIC(LanguageMode language_mode);
   static Bytecode BytecodeForStoreIC(LanguageMode language_mode);
   static Bytecode BytecodeForKeyedStoreIC(LanguageMode language_mode);
   static Bytecode BytecodeForLoadGlobal(LanguageMode language_mode);
   static Bytecode BytecodeForStoreGlobal(LanguageMode language_mode);
+  static Bytecode BytecodeForCreateArguments(CreateArgumentsType type);
 
   static bool FitsInIdx8Operand(int value);
   static bool FitsInIdx8Operand(size_t value);
   static bool FitsInImm8Operand(int value);
   static bool FitsInIdx16Operand(int value);
 
   static Bytecode GetJumpWithConstantOperand(Bytecode jump_with_smi8_operand);
 
   template <size_t N>
   INLINE(void Output(Bytecode bytecode, uint32_t(&oprands)[N]));
@@ skipping 109 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(TemporaryRegisterScope);
 };
 
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODE_ARRAY_BUILDER_H_