[Interpreter] Add support for loading from / storing to outer context variables.

src/compiler/interpreter-assembler.cc

 // 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.
 
 #include "src/compiler/interpreter-assembler.h"
 
 #include <ostream>
 
 #include "src/code-factory.h"
 #include "src/compiler/graph.h"
@@ skipping 107 matching lines @@
 }
 
 
 Node* InterpreterAssembler::LoadRegister(Node* reg_index) {
   return raw_assembler_->Load(kMachAnyTagged, RegisterFileRawPointer(),
                               RegisterFrameOffset(reg_index));
 }
 
 
 Node* InterpreterAssembler::StoreRegister(Node* value, Node* reg_index) {
-  return raw_assembler_->Store(kMachAnyTagged, RegisterFileRawPointer(),
-                               RegisterFrameOffset(reg_index), value);
+  return raw_assembler_->Store(
+      StoreRepresentation(kMachAnyTagged, kNoWriteBarrier),
+      RegisterFileRawPointer(), RegisterFrameOffset(reg_index), value);
 }
 
 
 Node* InterpreterAssembler::BytecodeOperand(int operand_index) {
   DCHECK_LT(operand_index, interpreter::Bytecodes::NumberOfOperands(bytecode_));
   DCHECK_EQ(interpreter::OperandSize::kByte,
             interpreter::Bytecodes::GetOperandSize(bytecode_, operand_index));
   return raw_assembler_->Load(
       kMachUint8, BytecodeArrayTaggedPointer(),
       IntPtrAdd(BytecodeOffset(),
@@ skipping 169 matching lines @@
                 Int32Constant(Context::kHeaderSize - kHeapObjectTag));
   return raw_assembler_->Load(kMachAnyTagged, context, offset);
 }
 
 
 Node* InterpreterAssembler::StoreContextSlot(Node* context, Node* slot_index,
                                              Node* value) {
   Node* offset =
       IntPtrAdd(WordShl(slot_index, kPointerSizeLog2),
                 Int32Constant(Context::kHeaderSize - kHeapObjectTag));
-  return raw_assembler_->Store(kMachAnyTagged, context, offset, value);
+  return raw_assembler_->Store(
+      StoreRepresentation(kMachAnyTagged, kFullWriteBarrier), context, offset,
+      value);
 }
 
 
 Node* InterpreterAssembler::LoadTypeFeedbackVector() {
   Node* function = raw_assembler_->Load(
       kMachAnyTagged, RegisterFileRawPointer(),
       IntPtrConstant(InterpreterFrameConstants::kFunctionFromRegisterPointer));
   Node* shared_info =
       LoadObjectField(function, JSFunction::kSharedFunctionInfoOffset);
   Node* vector =
@@ skipping 296 matching lines @@
   return raw_assembler_->schedule();
 }
 
 
 Zone* InterpreterAssembler::zone() { return raw_assembler_->zone(); }
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8