Move Full-codegen into its own folder.

src/full-codegen.cc

Index: src/full-codegen.cc
diff --git a/src/full-codegen.cc b/src/full-codegen.cc
deleted file mode 100644
index 2d7f6e8af7e606c13488a5b01807947521290383..0000000000000000000000000000000000000000
--- a/src/full-codegen.cc
+++ /dev/null
@@ -1,1595 +0,0 @@
-// Copyright 2012 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/v8.h"
-
-#include "src/ast.h"
-#include "src/ast-numbering.h"
-#include "src/code-factory.h"
-#include "src/codegen.h"
-#include "src/compiler.h"
-#include "src/debug.h"
-#include "src/full-codegen.h"
-#include "src/liveedit.h"
-#include "src/macro-assembler.h"
-#include "src/prettyprinter.h"
-#include "src/scopeinfo.h"
-#include "src/scopes.h"
-#include "src/snapshot/snapshot.h"
-
-namespace v8 {
-namespace internal {
-
-#define __ ACCESS_MASM(masm())
-
-bool FullCodeGenerator::MakeCode(CompilationInfo* info) {
-  Isolate* isolate = info->isolate();
-
-  TimerEventScope<TimerEventCompileFullCode> timer(info->isolate());
-
-  // Ensure that the feedback vector is large enough.
-  info->EnsureFeedbackVector();
-
-  Handle<Script> script = info->script();
-  if (!script->IsUndefined() && !script->source()->IsUndefined()) {
-    int len = String::cast(script->source())->length();
-    isolate->counters()->total_full_codegen_source_size()->Increment(len);
-  }
-  CodeGenerator::MakeCodePrologue(info, "full");
-  const int kInitialBufferSize = 4 * KB;
-  MacroAssembler masm(info->isolate(), NULL, kInitialBufferSize);
-  if (info->will_serialize()) masm.enable_serializer();
-
-  LOG_CODE_EVENT(isolate,
-                 CodeStartLinePosInfoRecordEvent(masm.positions_recorder()));
-
-  FullCodeGenerator cgen(&masm, info);
-  cgen.Generate();
-  if (cgen.HasStackOverflow()) {
-    DCHECK(!isolate->has_pending_exception());
-    return false;
-  }
-  unsigned table_offset = cgen.EmitBackEdgeTable();
-
-  Code::Flags flags = Code::ComputeFlags(Code::FUNCTION);
-  Handle<Code> code = CodeGenerator::MakeCodeEpilogue(&masm, flags, info);
-  cgen.PopulateDeoptimizationData(code);
-  cgen.PopulateTypeFeedbackInfo(code);
-  cgen.PopulateHandlerTable(code);
-  code->set_has_deoptimization_support(info->HasDeoptimizationSupport());
-  code->set_has_reloc_info_for_serialization(info->will_serialize());
-  code->set_compiled_optimizable(info->IsOptimizable());
-  code->set_allow_osr_at_loop_nesting_level(0);
-  code->set_profiler_ticks(0);
-  code->set_back_edge_table_offset(table_offset);
-  CodeGenerator::PrintCode(code, info);
-  info->SetCode(code);
-  void* line_info = masm.positions_recorder()->DetachJITHandlerData();
-  LOG_CODE_EVENT(isolate, CodeEndLinePosInfoRecordEvent(*code, line_info));
-
-#ifdef DEBUG
-  // Check that no context-specific object has been embedded.
-  code->VerifyEmbeddedObjects(Code::kNoContextSpecificPointers);
-#endif  // DEBUG
-  return true;
-}
-
-
-unsigned FullCodeGenerator::EmitBackEdgeTable() {
-  // The back edge table consists of a length (in number of entries)
-  // field, and then a sequence of entries.  Each entry is a pair of AST id
-  // and code-relative pc offset.
-  masm()->Align(kPointerSize);
-  unsigned offset = masm()->pc_offset();
-  unsigned length = back_edges_.length();
-  __ dd(length);
-  for (unsigned i = 0; i < length; ++i) {
-    __ dd(back_edges_[i].id.ToInt());
-    __ dd(back_edges_[i].pc);
-    __ dd(back_edges_[i].loop_depth);
-  }
-  return offset;
-}
-
-
-void FullCodeGenerator::EnsureSlotContainsAllocationSite(
-    FeedbackVectorSlot slot) {
-  Handle<TypeFeedbackVector> vector = FeedbackVector();
-  if (!vector->Get(slot)->IsAllocationSite()) {
-    Handle<AllocationSite> allocation_site =
-        isolate()->factory()->NewAllocationSite();
-    vector->Set(slot, *allocation_site);
-  }
-}
-
-
-void FullCodeGenerator::EnsureSlotContainsAllocationSite(
-    FeedbackVectorICSlot slot) {
-  Handle<TypeFeedbackVector> vector = FeedbackVector();
-  if (!vector->Get(slot)->IsAllocationSite()) {
-    Handle<AllocationSite> allocation_site =
-        isolate()->factory()->NewAllocationSite();
-    vector->Set(slot, *allocation_site);
-  }
-}
-
-
-void FullCodeGenerator::PopulateDeoptimizationData(Handle<Code> code) {
-  // Fill in the deoptimization information.
-  DCHECK(info_->HasDeoptimizationSupport() || bailout_entries_.is_empty());
-  if (!info_->HasDeoptimizationSupport()) return;
-  int length = bailout_entries_.length();
-  Handle<DeoptimizationOutputData> data =
-      DeoptimizationOutputData::New(isolate(), length, TENURED);
-  for (int i = 0; i < length; i++) {
-    data->SetAstId(i, bailout_entries_[i].id);
-    data->SetPcAndState(i, Smi::FromInt(bailout_entries_[i].pc_and_state));
-  }
-  code->set_deoptimization_data(*data);
-}
-
-
-void FullCodeGenerator::PopulateTypeFeedbackInfo(Handle<Code> code) {
-  Handle<TypeFeedbackInfo> info = isolate()->factory()->NewTypeFeedbackInfo();
-  info->set_ic_total_count(ic_total_count_);
-  DCHECK(!isolate()->heap()->InNewSpace(*info));
-  code->set_type_feedback_info(*info);
-}
-
-
-void FullCodeGenerator::PopulateHandlerTable(Handle<Code> code) {
-  int handler_table_size = static_cast<int>(handler_table_.size());
-  Handle<HandlerTable> table =
-      Handle<HandlerTable>::cast(isolate()->factory()->NewFixedArray(
-          HandlerTable::LengthForRange(handler_table_size), TENURED));
-  for (int i = 0; i < handler_table_size; ++i) {
-    HandlerTable::CatchPrediction prediction =
-        handler_table_[i].try_catch_depth > 0 ? HandlerTable::CAUGHT
-                                              : HandlerTable::UNCAUGHT;
-    table->SetRangeStart(i, handler_table_[i].range_start);
-    table->SetRangeEnd(i, handler_table_[i].range_end);
-    table->SetRangeHandler(i, handler_table_[i].handler_offset, prediction);
-    table->SetRangeDepth(i, handler_table_[i].stack_depth);
-  }
-  code->set_handler_table(*table);
-}
-
-
-int FullCodeGenerator::NewHandlerTableEntry() {
-  int index = static_cast<int>(handler_table_.size());
-  HandlerTableEntry entry = {0, 0, 0, 0, 0};
-  handler_table_.push_back(entry);
-  return index;
-}
-
-
-bool FullCodeGenerator::MustCreateObjectLiteralWithRuntime(
-    ObjectLiteral* expr) const {
-  int literal_flags = expr->ComputeFlags();
-  // FastCloneShallowObjectStub doesn't copy elements, and object literals don't
-  // support copy-on-write (COW) elements for now.
-  // TODO(mvstanton): make object literals support COW elements.
-  return masm()->serializer_enabled() ||
-         literal_flags != ObjectLiteral::kShallowProperties ||
-         literal_flags != ObjectLiteral::kFastElements ||
-         expr->properties_count() >
-             FastCloneShallowObjectStub::kMaximumClonedProperties;
-}
-
-
-bool FullCodeGenerator::MustCreateArrayLiteralWithRuntime(
-    ArrayLiteral* expr) const {
-  // TODO(rossberg): Teach strong mode to FastCloneShallowArrayStub.
-  return expr->depth() > 1 || expr->is_strong() ||
-         expr->values()->length() > JSObject::kInitialMaxFastElementArray;
-}
-
-
-void FullCodeGenerator::Initialize() {
-  InitializeAstVisitor(info_->isolate(), info_->zone());
-  // The generation of debug code must match between the snapshot code and the
-  // code that is generated later.  This is assumed by the debugger when it is
-  // calculating PC offsets after generating a debug version of code.  Therefore
-  // we disable the production of debug code in the full compiler if we are
-  // either generating a snapshot or we booted from a snapshot.
-  generate_debug_code_ = FLAG_debug_code && !masm_->serializer_enabled() &&
-                         !info_->isolate()->snapshot_available();
-  masm_->set_emit_debug_code(generate_debug_code_);
-  masm_->set_predictable_code_size(true);
-}
-
-
-void FullCodeGenerator::PrepareForBailout(Expression* node, State state) {
-  PrepareForBailoutForId(node->id(), state);
-}
-
-
-void FullCodeGenerator::CallLoadIC(TypeofMode typeof_mode,
-                                   LanguageMode language_mode,
-                                   TypeFeedbackId id) {
-  Handle<Code> ic =
-      CodeFactory::LoadIC(isolate(), typeof_mode, language_mode).code();
-  CallIC(ic, id);
-}
-
-
-void FullCodeGenerator::CallStoreIC(TypeFeedbackId id) {
-  Handle<Code> ic = CodeFactory::StoreIC(isolate(), language_mode()).code();
-  CallIC(ic, id);
-}
-
-
-void FullCodeGenerator::RecordJSReturnSite(Call* call) {
-  // We record the offset of the function return so we can rebuild the frame
-  // if the function was inlined, i.e., this is the return address in the
-  // inlined function's frame.
-  //
-  // The state is ignored.  We defensively set it to TOS_REG, which is the
-  // real state of the unoptimized code at the return site.
-  PrepareForBailoutForId(call->ReturnId(), TOS_REG);
-#ifdef DEBUG
-  // In debug builds, mark the return so we can verify that this function
-  // was called.
-  DCHECK(!call->return_is_recorded_);
-  call->return_is_recorded_ = true;
-#endif
-}
-
-
-void FullCodeGenerator::PrepareForBailoutForId(BailoutId id, State state) {
-  // There's no need to prepare this code for bailouts from already optimized
-  // code or code that can't be optimized.
-  if (!info_->HasDeoptimizationSupport()) return;
-  unsigned pc_and_state =
-      StateField::encode(state) | PcField::encode(masm_->pc_offset());
-  DCHECK(Smi::IsValid(pc_and_state));
-#ifdef DEBUG
-  for (int i = 0; i < bailout_entries_.length(); ++i) {
-    DCHECK(bailout_entries_[i].id != id);
-  }
-#endif
-  BailoutEntry entry = { id, pc_and_state };
-  bailout_entries_.Add(entry, zone());
-}
-
-
-void FullCodeGenerator::RecordBackEdge(BailoutId ast_id) {
-  // The pc offset does not need to be encoded and packed together with a state.
-  DCHECK(masm_->pc_offset() > 0);
-  DCHECK(loop_depth() > 0);
-  uint8_t depth = Min(loop_depth(), Code::kMaxLoopNestingMarker);
-  BackEdgeEntry entry =
-      { ast_id, static_cast<unsigned>(masm_->pc_offset()), depth };
-  back_edges_.Add(entry, zone());
-}
-
-
-bool FullCodeGenerator::ShouldInlineSmiCase(Token::Value op) {
-  // Inline smi case inside loops, but not division and modulo which
-  // are too complicated and take up too much space.
-  if (op == Token::DIV ||op == Token::MOD) return false;
-  if (FLAG_always_inline_smi_code) return true;
-  return loop_depth_ > 0;
-}
-
-
-void FullCodeGenerator::EffectContext::Plug(Variable* var) const {
-  DCHECK(var->IsStackAllocated() || var->IsContextSlot());
-}
-
-
-void FullCodeGenerator::AccumulatorValueContext::Plug(Variable* var) const {
-  DCHECK(var->IsStackAllocated() || var->IsContextSlot());
-  codegen()->GetVar(result_register(), var);
-}
-
-
-void FullCodeGenerator::TestContext::Plug(Variable* var) const {
-  DCHECK(var->IsStackAllocated() || var->IsContextSlot());
-  // For simplicity we always test the accumulator register.
-  codegen()->GetVar(result_register(), var);
-  codegen()->PrepareForBailoutBeforeSplit(condition(), false, NULL, NULL);
-  codegen()->DoTest(this);
-}
-
-
-void FullCodeGenerator::EffectContext::Plug(Register reg) const {
-}
-
-
-void FullCodeGenerator::AccumulatorValueContext::Plug(Register reg) const {
-  __ Move(result_register(), reg);
-}
-
-
-void FullCodeGenerator::StackValueContext::Plug(Register reg) const {
-  __ Push(reg);
-}
-
-
-void FullCodeGenerator::TestContext::Plug(Register reg) const {
-  // For simplicity we always test the accumulator register.
-  __ Move(result_register(), reg);
-  codegen()->PrepareForBailoutBeforeSplit(condition(), false, NULL, NULL);
-  codegen()->DoTest(this);
-}
-
-
-void FullCodeGenerator::EffectContext::Plug(bool flag) const {}
-
-
-void FullCodeGenerator::EffectContext::PlugTOS() const {
-  __ Drop(1);
-}
-
-
-void FullCodeGenerator::AccumulatorValueContext::PlugTOS() const {
-  __ Pop(result_register());
-}
-
-
-void FullCodeGenerator::StackValueContext::PlugTOS() const {
-}
-
-
-void FullCodeGenerator::TestContext::PlugTOS() const {
-  // For simplicity we always test the accumulator register.
-  __ Pop(result_register());
-  codegen()->PrepareForBailoutBeforeSplit(condition(), false, NULL, NULL);
-  codegen()->DoTest(this);
-}
-
-
-void FullCodeGenerator::EffectContext::PrepareTest(
-    Label* materialize_true,
-    Label* materialize_false,
-    Label** if_true,
-    Label** if_false,
-    Label** fall_through) const {
-  // In an effect context, the true and the false case branch to the
-  // same label.
-  *if_true = *if_false = *fall_through = materialize_true;
-}
-
-
-void FullCodeGenerator::AccumulatorValueContext::PrepareTest(
-    Label* materialize_true,
-    Label* materialize_false,
-    Label** if_true,
-    Label** if_false,
-    Label** fall_through) const {
-  *if_true = *fall_through = materialize_true;
-  *if_false = materialize_false;
-}
-
-
-void FullCodeGenerator::StackValueContext::PrepareTest(
-    Label* materialize_true,
-    Label* materialize_false,
-    Label** if_true,
-    Label** if_false,
-    Label** fall_through) const {
-  *if_true = *fall_through = materialize_true;
-  *if_false = materialize_false;
-}
-
-
-void FullCodeGenerator::TestContext::PrepareTest(
-    Label* materialize_true,
-    Label* materialize_false,
-    Label** if_true,
-    Label** if_false,
-    Label** fall_through) const {
-  *if_true = true_label_;
-  *if_false = false_label_;
-  *fall_through = fall_through_;
-}
-
-
-void FullCodeGenerator::DoTest(const TestContext* context) {
-  DoTest(context->condition(),
-         context->true_label(),
-         context->false_label(),
-         context->fall_through());
-}
-
-
-void FullCodeGenerator::VisitDeclarations(
-    ZoneList<Declaration*>* declarations) {
-  ZoneList<Handle<Object> >* saved_globals = globals_;
-  ZoneList<Handle<Object> > inner_globals(10, zone());
-  globals_ = &inner_globals;
-
-  AstVisitor::VisitDeclarations(declarations);
-
-  if (!globals_->is_empty()) {
-    // Invoke the platform-dependent code generator to do the actual
-    // declaration of the global functions and variables.
-    Handle<FixedArray> array =
-       isolate()->factory()->NewFixedArray(globals_->length(), TENURED);
-    for (int i = 0; i < globals_->length(); ++i)
-      array->set(i, *globals_->at(i));
-    DeclareGlobals(array);
-  }
-
-  globals_ = saved_globals;
-}
-
-
-void FullCodeGenerator::VisitImportDeclaration(ImportDeclaration* declaration) {
-  VariableProxy* proxy = declaration->proxy();
-  Variable* variable = proxy->var();
-  switch (variable->location()) {
-    case VariableLocation::GLOBAL:
-    case VariableLocation::UNALLOCATED:
-      // TODO(rossberg)
-      break;
-
-    case VariableLocation::CONTEXT: {
-      Comment cmnt(masm_, "[ ImportDeclaration");
-      EmitDebugCheckDeclarationContext(variable);
-      // TODO(rossberg)
-      break;
-    }
-
-    case VariableLocation::PARAMETER:
-    case VariableLocation::LOCAL:
-    case VariableLocation::LOOKUP:
-      UNREACHABLE();
-  }
-}
-
-
-void FullCodeGenerator::VisitExportDeclaration(ExportDeclaration* declaration) {
-  // TODO(rossberg)
-}
-
-
-void FullCodeGenerator::VisitVariableProxy(VariableProxy* expr) {
-  Comment cmnt(masm_, "[ VariableProxy");
-  EmitVariableLoad(expr);
-}
-
-
-int FullCodeGenerator::DeclareGlobalsFlags() {
-  DCHECK(DeclareGlobalsLanguageMode::is_valid(language_mode()));
-  return DeclareGlobalsEvalFlag::encode(is_eval()) |
-         DeclareGlobalsNativeFlag::encode(is_native()) |
-         DeclareGlobalsLanguageMode::encode(language_mode());
-}
-
-
-void FullCodeGenerator::EmitSubString(CallRuntime* expr) {
-  // Load the arguments on the stack and call the stub.
-  SubStringStub stub(isolate());
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 3);
-  VisitForStackValue(args->at(0));
-  VisitForStackValue(args->at(1));
-  VisitForStackValue(args->at(2));
-  __ CallStub(&stub);
-  context()->Plug(result_register());
-}
-
-
-void FullCodeGenerator::EmitRegExpExec(CallRuntime* expr) {
-  // Load the arguments on the stack and call the stub.
-  RegExpExecStub stub(isolate());
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 4);
-  VisitForStackValue(args->at(0));
-  VisitForStackValue(args->at(1));
-  VisitForStackValue(args->at(2));
-  VisitForStackValue(args->at(3));
-  __ CallStub(&stub);
-  context()->Plug(result_register());
-}
-
-
-void FullCodeGenerator::EmitMathPow(CallRuntime* expr) {
-  // Load the arguments on the stack and call the runtime function.
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 2);
-  VisitForStackValue(args->at(0));
-  VisitForStackValue(args->at(1));
-
-  MathPowStub stub(isolate(), MathPowStub::ON_STACK);
-  __ CallStub(&stub);
-  context()->Plug(result_register());
-}
-
-
-void FullCodeGenerator::EmitStringCompare(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK_EQ(2, args->length());
-
-  VisitForStackValue(args->at(0));
-  VisitForStackValue(args->at(1));
-
-  StringCompareStub stub(isolate());
-  __ CallStub(&stub);
-  context()->Plug(result_register());
-}
-
-
-bool RecordStatementPosition(MacroAssembler* masm, int pos) {
-  if (pos == RelocInfo::kNoPosition) return false;
-  masm->positions_recorder()->RecordStatementPosition(pos);
-  masm->positions_recorder()->RecordPosition(pos);
-  return masm->positions_recorder()->WriteRecordedPositions();
-}
-
-
-bool RecordPosition(MacroAssembler* masm, int pos) {
-  if (pos == RelocInfo::kNoPosition) return false;
-  masm->positions_recorder()->RecordPosition(pos);
-  return masm->positions_recorder()->WriteRecordedPositions();
-}
-
-
-void FullCodeGenerator::SetFunctionPosition(FunctionLiteral* fun) {
-  RecordPosition(masm_, fun->start_position());
-}
-
-
-void FullCodeGenerator::SetReturnPosition(FunctionLiteral* fun) {
-  RecordStatementPosition(masm_, fun->end_position() - 1);
-  if (info_->is_debug()) {
-    // Always emit a debug break slot before a return.
-    DebugCodegen::GenerateSlot(masm_, RelocInfo::DEBUG_BREAK_SLOT_AT_RETURN);
-  }
-}
-
-
-void FullCodeGenerator::SetStatementPosition(
-    Statement* stmt, FullCodeGenerator::InsertBreak insert_break) {
-  if (stmt->position() == RelocInfo::kNoPosition) return;
-  bool recorded = RecordStatementPosition(masm_, stmt->position());
-  if (recorded && insert_break == INSERT_BREAK && info_->is_debug() &&
-      !stmt->IsDebuggerStatement()) {
-    DebugCodegen::GenerateSlot(masm_, RelocInfo::DEBUG_BREAK_SLOT_AT_POSITION);
-  }
-}
-
-
-void FullCodeGenerator::SetExpressionPosition(
-    Expression* expr, FullCodeGenerator::InsertBreak insert_break) {
-  if (expr->position() == RelocInfo::kNoPosition) return;
-  bool recorded = RecordPosition(masm_, expr->position());
-  if (recorded && insert_break == INSERT_BREAK && info_->is_debug()) {
-    DebugCodegen::GenerateSlot(masm_, RelocInfo::DEBUG_BREAK_SLOT_AT_POSITION);
-  }
-}
-
-
-void FullCodeGenerator::SetExpressionAsStatementPosition(Expression* expr) {
-  if (expr->position() == RelocInfo::kNoPosition) return;
-  bool recorded = RecordStatementPosition(masm_, expr->position());
-  if (recorded && info_->is_debug()) {
-    DebugCodegen::GenerateSlot(masm_, RelocInfo::DEBUG_BREAK_SLOT_AT_POSITION);
-  }
-}
-
-
-void FullCodeGenerator::SetCallPosition(Expression* expr, int argc) {
-  if (expr->position() == RelocInfo::kNoPosition) return;
-  RecordPosition(masm_, expr->position());
-  if (info_->is_debug()) {
-    // Always emit a debug break slot before a call.
-    DebugCodegen::GenerateSlot(masm_, RelocInfo::DEBUG_BREAK_SLOT_AT_CALL,
-                               argc);
-  }
-}
-
-
-void FullCodeGenerator::SetConstructCallPosition(Expression* expr) {
-  if (expr->position() == RelocInfo::kNoPosition) return;
-  RecordPosition(masm_, expr->position());
-  if (info_->is_debug()) {
-    // Always emit a debug break slot before a construct call.
-    DebugCodegen::GenerateSlot(masm_,
-                               RelocInfo::DEBUG_BREAK_SLOT_AT_CONSTRUCT_CALL);
-  }
-}
-
-
-void FullCodeGenerator::VisitSuperPropertyReference(
-    SuperPropertyReference* super) {
-  __ CallRuntime(Runtime::kThrowUnsupportedSuperError, 0);
-}
-
-
-void FullCodeGenerator::VisitSuperCallReference(SuperCallReference* super) {
-  __ CallRuntime(Runtime::kThrowUnsupportedSuperError, 0);
-}
-
-
-void FullCodeGenerator::EmitGeneratorNext(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 2);
-  EmitGeneratorResume(args->at(0), args->at(1), JSGeneratorObject::NEXT);
-}
-
-
-void FullCodeGenerator::EmitGeneratorThrow(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 2);
-  EmitGeneratorResume(args->at(0), args->at(1), JSGeneratorObject::THROW);
-}
-
-
-void FullCodeGenerator::EmitDebugBreakInOptimizedCode(CallRuntime* expr) {
-  context()->Plug(handle(Smi::FromInt(0), isolate()));
-}
-
-
-void FullCodeGenerator::VisitBinaryOperation(BinaryOperation* expr) {
-  switch (expr->op()) {
-    case Token::COMMA:
-      return VisitComma(expr);
-    case Token::OR:
-    case Token::AND:
-      return VisitLogicalExpression(expr);
-    default:
-      return VisitArithmeticExpression(expr);
-  }
-}
-
-
-void FullCodeGenerator::VisitInDuplicateContext(Expression* expr) {
-  if (context()->IsEffect()) {
-    VisitForEffect(expr);
-  } else if (context()->IsAccumulatorValue()) {
-    VisitForAccumulatorValue(expr);
-  } else if (context()->IsStackValue()) {
-    VisitForStackValue(expr);
-  } else if (context()->IsTest()) {
-    const TestContext* test = TestContext::cast(context());
-    VisitForControl(expr, test->true_label(), test->false_label(),
-                    test->fall_through());
-  }
-}
-
-
-void FullCodeGenerator::VisitComma(BinaryOperation* expr) {
-  Comment cmnt(masm_, "[ Comma");
-  VisitForEffect(expr->left());
-  VisitInDuplicateContext(expr->right());
-}
-
-
-void FullCodeGenerator::VisitLogicalExpression(BinaryOperation* expr) {
-  bool is_logical_and = expr->op() == Token::AND;
-  Comment cmnt(masm_, is_logical_and ? "[ Logical AND" :  "[ Logical OR");
-  Expression* left = expr->left();
-  Expression* right = expr->right();
-  BailoutId right_id = expr->RightId();
-  Label done;
-
-  if (context()->IsTest()) {
-    Label eval_right;
-    const TestContext* test = TestContext::cast(context());
-    if (is_logical_and) {
-      VisitForControl(left, &eval_right, test->false_label(), &eval_right);
-    } else {
-      VisitForControl(left, test->true_label(), &eval_right, &eval_right);
-    }
-    PrepareForBailoutForId(right_id, NO_REGISTERS);
-    __ bind(&eval_right);
-
-  } else if (context()->IsAccumulatorValue()) {
-    VisitForAccumulatorValue(left);
-    // We want the value in the accumulator for the test, and on the stack in
-    // case we need it.
-    __ Push(result_register());
-    Label discard, restore;
-    if (is_logical_and) {
-      DoTest(left, &discard, &restore, &restore);
-    } else {
-      DoTest(left, &restore, &discard, &restore);
-    }
-    __ bind(&restore);
-    __ Pop(result_register());
-    __ jmp(&done);
-    __ bind(&discard);
-    __ Drop(1);
-    PrepareForBailoutForId(right_id, NO_REGISTERS);
-
-  } else if (context()->IsStackValue()) {
-    VisitForAccumulatorValue(left);
-    // We want the value in the accumulator for the test, and on the stack in
-    // case we need it.
-    __ Push(result_register());
-    Label discard;
-    if (is_logical_and) {
-      DoTest(left, &discard, &done, &discard);
-    } else {
-      DoTest(left, &done, &discard, &discard);
-    }
-    __ bind(&discard);
-    __ Drop(1);
-    PrepareForBailoutForId(right_id, NO_REGISTERS);
-
-  } else {
-    DCHECK(context()->IsEffect());
-    Label eval_right;
-    if (is_logical_and) {
-      VisitForControl(left, &eval_right, &done, &eval_right);
-    } else {
-      VisitForControl(left, &done, &eval_right, &eval_right);
-    }
-    PrepareForBailoutForId(right_id, NO_REGISTERS);
-    __ bind(&eval_right);
-  }
-
-  VisitInDuplicateContext(right);
-  __ bind(&done);
-}
-
-
-void FullCodeGenerator::VisitArithmeticExpression(BinaryOperation* expr) {
-  Token::Value op = expr->op();
-  Comment cmnt(masm_, "[ ArithmeticExpression");
-  Expression* left = expr->left();
-  Expression* right = expr->right();
-
-  VisitForStackValue(left);
-  VisitForAccumulatorValue(right);
-
-  SetExpressionPosition(expr);
-  if (ShouldInlineSmiCase(op)) {
-    EmitInlineSmiBinaryOp(expr, op, left, right);
-  } else {
-    EmitBinaryOp(expr, op);
-  }
-}
-
-
-void FullCodeGenerator::VisitForTypeofValue(Expression* expr) {
-  VariableProxy* proxy = expr->AsVariableProxy();
-  DCHECK(!context()->IsEffect());
-  DCHECK(!context()->IsTest());
-
-  if (proxy != NULL && (proxy->var()->IsUnallocatedOrGlobalSlot() ||
-                        proxy->var()->IsLookupSlot())) {
-    EmitVariableLoad(proxy, INSIDE_TYPEOF);
-    PrepareForBailout(proxy, TOS_REG);
-  } else {
-    // This expression cannot throw a reference error at the top level.
-    VisitInDuplicateContext(expr);
-  }
-}
-
-
-void FullCodeGenerator::VisitBlock(Block* stmt) {
-  Comment cmnt(masm_, "[ Block");
-  NestedBlock nested_block(this, stmt);
-  SetStatementPosition(stmt);
-
-  {
-    EnterBlockScopeIfNeeded block_scope_state(
-        this, stmt->scope(), stmt->EntryId(), stmt->DeclsId(), stmt->ExitId());
-    VisitStatements(stmt->statements());
-    __ bind(nested_block.break_label());
-  }
-}
-
-
-void FullCodeGenerator::VisitExpressionStatement(ExpressionStatement* stmt) {
-  Comment cmnt(masm_, "[ ExpressionStatement");
-  SetStatementPosition(stmt);
-  VisitForEffect(stmt->expression());
-}
-
-
-void FullCodeGenerator::VisitEmptyStatement(EmptyStatement* stmt) {
-  Comment cmnt(masm_, "[ EmptyStatement");
-  SetStatementPosition(stmt);
-}
-
-
-void FullCodeGenerator::VisitIfStatement(IfStatement* stmt) {
-  Comment cmnt(masm_, "[ IfStatement");
-  SetStatementPosition(stmt);
-  Label then_part, else_part, done;
-
-  if (stmt->HasElseStatement()) {
-    VisitForControl(stmt->condition(), &then_part, &else_part, &then_part);
-    PrepareForBailoutForId(stmt->ThenId(), NO_REGISTERS);
-    __ bind(&then_part);
-    Visit(stmt->then_statement());
-    __ jmp(&done);
-
-    PrepareForBailoutForId(stmt->ElseId(), NO_REGISTERS);
-    __ bind(&else_part);
-    Visit(stmt->else_statement());
-  } else {
-    VisitForControl(stmt->condition(), &then_part, &done, &then_part);
-    PrepareForBailoutForId(stmt->ThenId(), NO_REGISTERS);
-    __ bind(&then_part);
-    Visit(stmt->then_statement());
-
-    PrepareForBailoutForId(stmt->ElseId(), NO_REGISTERS);
-  }
-  __ bind(&done);
-  PrepareForBailoutForId(stmt->IfId(), NO_REGISTERS);
-}
-
-
-void FullCodeGenerator::VisitContinueStatement(ContinueStatement* stmt) {
-  Comment cmnt(masm_,  "[ ContinueStatement");
-  SetStatementPosition(stmt);
-  NestedStatement* current = nesting_stack_;
-  int stack_depth = 0;
-  int context_length = 0;
-  // When continuing, we clobber the unpredictable value in the accumulator
-  // with one that's safe for GC.  If we hit an exit from the try block of
-  // try...finally on our way out, we will unconditionally preserve the
-  // accumulator on the stack.
-  ClearAccumulator();
-  while (!current->IsContinueTarget(stmt->target())) {
-    current = current->Exit(&stack_depth, &context_length);
-  }
-  __ Drop(stack_depth);
-  if (context_length > 0) {
-    while (context_length > 0) {
-      LoadContextField(context_register(), Context::PREVIOUS_INDEX);
-      --context_length;
-    }
-    StoreToFrameField(StandardFrameConstants::kContextOffset,
-                      context_register());
-  }
-
-  __ jmp(current->AsIteration()->continue_label());
-}
-
-
-void FullCodeGenerator::VisitBreakStatement(BreakStatement* stmt) {
-  Comment cmnt(masm_,  "[ BreakStatement");
-  SetStatementPosition(stmt);
-  NestedStatement* current = nesting_stack_;
-  int stack_depth = 0;
-  int context_length = 0;
-  // When breaking, we clobber the unpredictable value in the accumulator
-  // with one that's safe for GC.  If we hit an exit from the try block of
-  // try...finally on our way out, we will unconditionally preserve the
-  // accumulator on the stack.
-  ClearAccumulator();
-  while (!current->IsBreakTarget(stmt->target())) {
-    current = current->Exit(&stack_depth, &context_length);
-  }
-  __ Drop(stack_depth);
-  if (context_length > 0) {
-    while (context_length > 0) {
-      LoadContextField(context_register(), Context::PREVIOUS_INDEX);
-      --context_length;
-    }
-    StoreToFrameField(StandardFrameConstants::kContextOffset,
-                      context_register());
-  }
-
-  __ jmp(current->AsBreakable()->break_label());
-}
-
-
-void FullCodeGenerator::EmitUnwindBeforeReturn() {
-  NestedStatement* current = nesting_stack_;
-  int stack_depth = 0;
-  int context_length = 0;
-  while (current != NULL) {
-    current = current->Exit(&stack_depth, &context_length);
-  }
-  __ Drop(stack_depth);
-}
-
-
-void FullCodeGenerator::EmitPropertyKey(ObjectLiteralProperty* property,
-                                        BailoutId bailout_id) {
-  VisitForStackValue(property->key());
-  __ InvokeBuiltin(Builtins::TO_NAME, CALL_FUNCTION);
-  PrepareForBailoutForId(bailout_id, NO_REGISTERS);
-  __ Push(result_register());
-}
-
-
-void FullCodeGenerator::EmitLoadSuperConstructor(SuperCallReference* ref) {
-  VisitForStackValue(ref->this_function_var());
-  __ CallRuntime(Runtime::kGetPrototype, 1);
-}
-
-
-void FullCodeGenerator::VisitReturnStatement(ReturnStatement* stmt) {
-  Comment cmnt(masm_, "[ ReturnStatement");
-  SetStatementPosition(stmt);
-  Expression* expr = stmt->expression();
-  VisitForAccumulatorValue(expr);
-  EmitUnwindBeforeReturn();
-  EmitReturnSequence();
-}
-
-
-void FullCodeGenerator::VisitWithStatement(WithStatement* stmt) {
-  Comment cmnt(masm_, "[ WithStatement");
-  SetStatementPosition(stmt);
-
-  VisitForStackValue(stmt->expression());
-  PushFunctionArgumentForContextAllocation();
-  __ CallRuntime(Runtime::kPushWithContext, 2);
-  StoreToFrameField(StandardFrameConstants::kContextOffset, context_register());
-  PrepareForBailoutForId(stmt->EntryId(), NO_REGISTERS);
-
-  Scope* saved_scope = scope();
-  scope_ = stmt->scope();
-  { WithOrCatch body(this);
-    Visit(stmt->statement());
-  }
-  scope_ = saved_scope;
-
-  // Pop context.
-  LoadContextField(context_register(), Context::PREVIOUS_INDEX);
-  // Update local stack frame context field.
-  StoreToFrameField(StandardFrameConstants::kContextOffset, context_register());
-}
-
-
-void FullCodeGenerator::VisitDoWhileStatement(DoWhileStatement* stmt) {
-  Comment cmnt(masm_, "[ DoWhileStatement");
-  // Do not insert break location as we do that below.
-  SetStatementPosition(stmt, SKIP_BREAK);
-
-  Label body, book_keeping;
-
-  Iteration loop_statement(this, stmt);
-  increment_loop_depth();
-
-  __ bind(&body);
-  Visit(stmt->body());
-
-  // Record the position of the do while condition and make sure it is
-  // possible to break on the condition.
-  __ bind(loop_statement.continue_label());
-  PrepareForBailoutForId(stmt->ContinueId(), NO_REGISTERS);
-
-  // Here is the actual 'while' keyword.
-  SetExpressionAsStatementPosition(stmt->cond());
-  VisitForControl(stmt->cond(),
-                  &book_keeping,
-                  loop_statement.break_label(),
-                  &book_keeping);
-
-  // Check stack before looping.
-  PrepareForBailoutForId(stmt->BackEdgeId(), NO_REGISTERS);
-  __ bind(&book_keeping);
-  EmitBackEdgeBookkeeping(stmt, &body);
-  __ jmp(&body);
-
-  PrepareForBailoutForId(stmt->ExitId(), NO_REGISTERS);
-  __ bind(loop_statement.break_label());
-  decrement_loop_depth();
-}
-
-
-void FullCodeGenerator::VisitWhileStatement(WhileStatement* stmt) {
-  Comment cmnt(masm_, "[ WhileStatement");
-  Label loop, body;
-
-  Iteration loop_statement(this, stmt);
-  increment_loop_depth();
-
-  __ bind(&loop);
-
-  SetExpressionAsStatementPosition(stmt->cond());
-  VisitForControl(stmt->cond(),
-                  &body,
-                  loop_statement.break_label(),
-                  &body);
-
-  PrepareForBailoutForId(stmt->BodyId(), NO_REGISTERS);
-  __ bind(&body);
-  Visit(stmt->body());
-
-  __ bind(loop_statement.continue_label());
-
-  // Check stack before looping.
-  EmitBackEdgeBookkeeping(stmt, &loop);
-  __ jmp(&loop);
-
-  PrepareForBailoutForId(stmt->ExitId(), NO_REGISTERS);
-  __ bind(loop_statement.break_label());
-  decrement_loop_depth();
-}
-
-
-void FullCodeGenerator::VisitForStatement(ForStatement* stmt) {
-  Comment cmnt(masm_, "[ ForStatement");
-  // Do not insert break location as we do it below.
-  SetStatementPosition(stmt, SKIP_BREAK);
-
-  Label test, body;
-
-  Iteration loop_statement(this, stmt);
-
-  if (stmt->init() != NULL) {
-    SetStatementPosition(stmt->init());
-    Visit(stmt->init());
-  }
-
-  increment_loop_depth();
-  // Emit the test at the bottom of the loop (even if empty).
-  __ jmp(&test);
-
-  PrepareForBailoutForId(stmt->BodyId(), NO_REGISTERS);
-  __ bind(&body);
-  Visit(stmt->body());
-
-  PrepareForBailoutForId(stmt->ContinueId(), NO_REGISTERS);
-  __ bind(loop_statement.continue_label());
-  if (stmt->next() != NULL) {
-    SetStatementPosition(stmt->next());
-    Visit(stmt->next());
-  }
-
-  // Check stack before looping.
-  EmitBackEdgeBookkeeping(stmt, &body);
-
-  __ bind(&test);
-  if (stmt->cond() != NULL) {
-    SetExpressionAsStatementPosition(stmt->cond());
-    VisitForControl(stmt->cond(),
-                    &body,
-                    loop_statement.break_label(),
-                    loop_statement.break_label());
-  } else {
-    __ jmp(&body);
-  }
-
-  PrepareForBailoutForId(stmt->ExitId(), NO_REGISTERS);
-  __ bind(loop_statement.break_label());
-  decrement_loop_depth();
-}
-
-
-void FullCodeGenerator::VisitForOfStatement(ForOfStatement* stmt) {
-  Comment cmnt(masm_, "[ ForOfStatement");
-
-  Iteration loop_statement(this, stmt);
-  increment_loop_depth();
-
-  // var iterator = iterable[Symbol.iterator]();
-  VisitForEffect(stmt->assign_iterator());
-
-  // Loop entry.
-  __ bind(loop_statement.continue_label());
-
-  // result = iterator.next()
-  SetExpressionAsStatementPosition(stmt->next_result());
-  VisitForEffect(stmt->next_result());
-
-  // if (result.done) break;
-  Label result_not_done;
-  VisitForControl(stmt->result_done(), loop_statement.break_label(),
-                  &result_not_done, &result_not_done);
-  __ bind(&result_not_done);
-
-  // each = result.value
-  VisitForEffect(stmt->assign_each());
-
-  // Generate code for the body of the loop.
-  Visit(stmt->body());
-
-  // Check stack before looping.
-  PrepareForBailoutForId(stmt->BackEdgeId(), NO_REGISTERS);
-  EmitBackEdgeBookkeeping(stmt, loop_statement.continue_label());
-  __ jmp(loop_statement.continue_label());
-
-  // Exit and decrement the loop depth.
-  PrepareForBailoutForId(stmt->ExitId(), NO_REGISTERS);
-  __ bind(loop_statement.break_label());
-  decrement_loop_depth();
-}
-
-
-void FullCodeGenerator::VisitTryCatchStatement(TryCatchStatement* stmt) {
-  Comment cmnt(masm_, "[ TryCatchStatement");
-  SetStatementPosition(stmt, SKIP_BREAK);
-
-  // The try block adds a handler to the exception handler chain before
-  // entering, and removes it again when exiting normally.  If an exception
-  // is thrown during execution of the try block, the handler is consumed
-  // and control is passed to the catch block with the exception in the
-  // result register.
-
-  Label try_entry, handler_entry, exit;
-  __ jmp(&try_entry);
-  __ bind(&handler_entry);
-  PrepareForBailoutForId(stmt->HandlerId(), NO_REGISTERS);
-  ClearPendingMessage();
-
-  // Exception handler code, the exception is in the result register.
-  // Extend the context before executing the catch block.
-  { Comment cmnt(masm_, "[ Extend catch context");
-    __ Push(stmt->variable()->name());
-    __ Push(result_register());
-    PushFunctionArgumentForContextAllocation();
-    __ CallRuntime(Runtime::kPushCatchContext, 3);
-    StoreToFrameField(StandardFrameConstants::kContextOffset,
-                      context_register());
-  }
-
-  Scope* saved_scope = scope();
-  scope_ = stmt->scope();
-  DCHECK(scope_->declarations()->is_empty());
-  { WithOrCatch catch_body(this);
-    Visit(stmt->catch_block());
-  }
-  // Restore the context.
-  LoadContextField(context_register(), Context::PREVIOUS_INDEX);
-  StoreToFrameField(StandardFrameConstants::kContextOffset, context_register());
-  scope_ = saved_scope;
-  __ jmp(&exit);
-
-  // Try block code. Sets up the exception handler chain.
-  __ bind(&try_entry);
-
-  try_catch_depth_++;
-  int handler_index = NewHandlerTableEntry();
-  EnterTryBlock(handler_index, &handler_entry);
-  { TryCatch try_body(this);
-    Visit(stmt->try_block());
-  }
-  ExitTryBlock(handler_index);
-  try_catch_depth_--;
-  __ bind(&exit);
-}
-
-
-void FullCodeGenerator::VisitTryFinallyStatement(TryFinallyStatement* stmt) {
-  Comment cmnt(masm_, "[ TryFinallyStatement");
-  SetStatementPosition(stmt, SKIP_BREAK);
-
-  // Try finally is compiled by setting up a try-handler on the stack while
-  // executing the try body, and removing it again afterwards.
-  //
-  // The try-finally construct can enter the finally block in three ways:
-  // 1. By exiting the try-block normally. This removes the try-handler and
-  //    calls the finally block code before continuing.
-  // 2. By exiting the try-block with a function-local control flow transfer
-  //    (break/continue/return). The site of the, e.g., break removes the
-  //    try handler and calls the finally block code before continuing
-  //    its outward control transfer.
-  // 3. By exiting the try-block with a thrown exception.
-  //    This can happen in nested function calls. It traverses the try-handler
-  //    chain and consumes the try-handler entry before jumping to the
-  //    handler code. The handler code then calls the finally-block before
-  //    rethrowing the exception.
-  //
-  // The finally block must assume a return address on top of the stack
-  // (or in the link register on ARM chips) and a value (return value or
-  // exception) in the result register (rax/eax/r0), both of which must
-  // be preserved. The return address isn't GC-safe, so it should be
-  // cooked before GC.
-  Label try_entry, handler_entry, finally_entry;
-
-  // Jump to try-handler setup and try-block code.
-  __ jmp(&try_entry);
-  __ bind(&handler_entry);
-  PrepareForBailoutForId(stmt->HandlerId(), NO_REGISTERS);
-
-  // Exception handler code.  This code is only executed when an exception
-  // is thrown.  The exception is in the result register, and must be
-  // preserved by the finally block.  Call the finally block and then
-  // rethrow the exception if it returns.
-  __ Call(&finally_entry);
-  __ Push(result_register());
-  __ CallRuntime(Runtime::kReThrow, 1);
-
-  // Finally block implementation.
-  __ bind(&finally_entry);
-  EnterFinallyBlock();
-  { Finally finally_body(this);
-    Visit(stmt->finally_block());
-  }
-  ExitFinallyBlock();  // Return to the calling code.
-
-  // Set up try handler.
-  __ bind(&try_entry);
-  int handler_index = NewHandlerTableEntry();
-  EnterTryBlock(handler_index, &handler_entry);
-  { TryFinally try_body(this, &finally_entry);
-    Visit(stmt->try_block());
-  }
-  ExitTryBlock(handler_index);
-  // Execute the finally block on the way out.  Clobber the unpredictable
-  // value in the result register with one that's safe for GC because the
-  // finally block will unconditionally preserve the result register on the
-  // stack.
-  ClearAccumulator();
-  __ Call(&finally_entry);
-}
-
-
-void FullCodeGenerator::VisitDebuggerStatement(DebuggerStatement* stmt) {
-  Comment cmnt(masm_, "[ DebuggerStatement");
-  SetStatementPosition(stmt);
-
-  __ DebugBreak();
-  // Ignore the return value.
-
-  PrepareForBailoutForId(stmt->DebugBreakId(), NO_REGISTERS);
-}
-
-
-void FullCodeGenerator::VisitCaseClause(CaseClause* clause) {
-  UNREACHABLE();
-}
-
-
-void FullCodeGenerator::VisitConditional(Conditional* expr) {
-  Comment cmnt(masm_, "[ Conditional");
-  Label true_case, false_case, done;
-  VisitForControl(expr->condition(), &true_case, &false_case, &true_case);
-
-  PrepareForBailoutForId(expr->ThenId(), NO_REGISTERS);
-  __ bind(&true_case);
-  SetExpressionPosition(expr->then_expression());
-  if (context()->IsTest()) {
-    const TestContext* for_test = TestContext::cast(context());
-    VisitForControl(expr->then_expression(),
-                    for_test->true_label(),
-                    for_test->false_label(),
-                    NULL);
-  } else {
-    VisitInDuplicateContext(expr->then_expression());
-    __ jmp(&done);
-  }
-
-  PrepareForBailoutForId(expr->ElseId(), NO_REGISTERS);
-  __ bind(&false_case);
-  SetExpressionPosition(expr->else_expression());
-  VisitInDuplicateContext(expr->else_expression());
-  // If control flow falls through Visit, merge it with true case here.
-  if (!context()->IsTest()) {
-    __ bind(&done);
-  }
-}
-
-
-void FullCodeGenerator::VisitLiteral(Literal* expr) {
-  Comment cmnt(masm_, "[ Literal");
-  context()->Plug(expr->value());
-}
-
-
-void FullCodeGenerator::VisitFunctionLiteral(FunctionLiteral* expr) {
-  Comment cmnt(masm_, "[ FunctionLiteral");
-
-  // Build the function boilerplate and instantiate it.
-  Handle<SharedFunctionInfo> function_info =
-      Compiler::GetSharedFunctionInfo(expr, script(), info_);
-  if (function_info.is_null()) {
-    SetStackOverflow();
-    return;
-  }
-  EmitNewClosure(function_info, expr->pretenure());
-}
-
-
-void FullCodeGenerator::VisitClassLiteral(ClassLiteral* lit) {
-  Comment cmnt(masm_, "[ ClassLiteral");
-
-  {
-    EnterBlockScopeIfNeeded block_scope_state(
-        this, lit->scope(), lit->EntryId(), lit->DeclsId(), lit->ExitId());
-
-    if (lit->raw_name() != NULL) {
-      __ Push(lit->name());
-    } else {
-      __ Push(isolate()->factory()->undefined_value());
-    }
-
-    if (lit->extends() != NULL) {
-      VisitForStackValue(lit->extends());
-    } else {
-      __ Push(isolate()->factory()->the_hole_value());
-    }
-
-    VisitForStackValue(lit->constructor());
-
-    __ Push(script());
-    __ Push(Smi::FromInt(lit->start_position()));
-    __ Push(Smi::FromInt(lit->end_position()));
-
-    __ CallRuntime(is_strong(language_mode()) ? Runtime::kDefineClassStrong
-                                              : Runtime::kDefineClass,
-                   6);
-    PrepareForBailoutForId(lit->CreateLiteralId(), TOS_REG);
-
-    int store_slot_index = 0;
-    EmitClassDefineProperties(lit, &store_slot_index);
-
-    if (lit->scope() != NULL) {
-      DCHECK_NOT_NULL(lit->class_variable_proxy());
-      FeedbackVectorICSlot slot = FLAG_vector_stores
-                                      ? lit->GetNthSlot(store_slot_index++)
-                                      : FeedbackVectorICSlot::Invalid();
-      EmitVariableAssignment(lit->class_variable_proxy()->var(),
-                             Token::INIT_CONST, slot);
-    }
-
-    // Verify that compilation exactly consumed the number of store ic slots
-    // that the ClassLiteral node had to offer.
-    DCHECK(!FLAG_vector_stores || store_slot_index == lit->slot_count());
-  }
-
-  context()->Plug(result_register());
-}
-
-
-void FullCodeGenerator::VisitNativeFunctionLiteral(
-    NativeFunctionLiteral* expr) {
-  Comment cmnt(masm_, "[ NativeFunctionLiteral");
-
-  v8::Isolate* v8_isolate = reinterpret_cast<v8::Isolate*>(isolate());
-
-  // Compute the function template for the native function.
-  Handle<String> name = expr->name();
-  v8::Local<v8::FunctionTemplate> fun_template =
-      expr->extension()->GetNativeFunctionTemplate(v8_isolate,
-                                                   v8::Utils::ToLocal(name));
-  DCHECK(!fun_template.IsEmpty());
-
-  // Instantiate the function and create a shared function info from it.
-  Handle<JSFunction> fun = Utils::OpenHandle(
-      *fun_template->GetFunction(v8_isolate->GetCurrentContext())
-           .ToLocalChecked());
-  const int literals = fun->NumberOfLiterals();
-  Handle<Code> code = Handle<Code>(fun->shared()->code());
-  Handle<Code> construct_stub = Handle<Code>(fun->shared()->construct_stub());
-  Handle<SharedFunctionInfo> shared =
-      isolate()->factory()->NewSharedFunctionInfo(
-          name, literals, FunctionKind::kNormalFunction, code,
-          Handle<ScopeInfo>(fun->shared()->scope_info()),
-          Handle<TypeFeedbackVector>(fun->shared()->feedback_vector()));
-  shared->set_construct_stub(*construct_stub);
-
-  // Copy the function data to the shared function info.
-  shared->set_function_data(fun->shared()->function_data());
-  int parameters = fun->shared()->internal_formal_parameter_count();
-  shared->set_internal_formal_parameter_count(parameters);
-
-  EmitNewClosure(shared, false);
-}
-
-
-void FullCodeGenerator::VisitThrow(Throw* expr) {
-  Comment cmnt(masm_, "[ Throw");
-  VisitForStackValue(expr->exception());
-  SetExpressionPosition(expr);
-  __ CallRuntime(Runtime::kThrow, 1);
-  // Never returns here.
-}
-
-
-void FullCodeGenerator::EnterTryBlock(int handler_index, Label* handler) {
-  HandlerTableEntry* entry = &handler_table_[handler_index];
-  entry->range_start = masm()->pc_offset();
-  entry->handler_offset = handler->pos();
-  entry->try_catch_depth = try_catch_depth_;
-
-  // Determine expression stack depth of try statement.
-  int stack_depth = info_->scope()->num_stack_slots();  // Include stack locals.
-  for (NestedStatement* current = nesting_stack_; current != NULL; /*nop*/) {
-    current = current->AccumulateDepth(&stack_depth);
-  }
-  entry->stack_depth = stack_depth;
-
-  // Push context onto operand stack.
-  STATIC_ASSERT(TryBlockConstant::kElementCount == 1);
-  __ Push(context_register());
-}
-
-
-void FullCodeGenerator::ExitTryBlock(int handler_index) {
-  HandlerTableEntry* entry = &handler_table_[handler_index];
-  entry->range_end = masm()->pc_offset();
-
-  // Drop context from operand stack.
-  __ Drop(TryBlockConstant::kElementCount);
-}
-
-
-void FullCodeGenerator::VisitSpread(Spread* expr) { UNREACHABLE(); }
-
-
-FullCodeGenerator::NestedStatement* FullCodeGenerator::TryFinally::Exit(
-    int* stack_depth, int* context_length) {
-  // The macros used here must preserve the result register.
-
-  // Because the handler block contains the context of the finally
-  // code, we can restore it directly from there for the finally code
-  // rather than iteratively unwinding contexts via their previous
-  // links.
-  if (*context_length > 0) {
-    __ Drop(*stack_depth);  // Down to the handler block.
-    // Restore the context to its dedicated register and the stack.
-    STATIC_ASSERT(TryFinally::kElementCount == 1);
-    __ Pop(codegen_->context_register());
-    codegen_->StoreToFrameField(StandardFrameConstants::kContextOffset,
-                                codegen_->context_register());
-  } else {
-    // Down to the handler block and also drop context.
-    __ Drop(*stack_depth + kElementCount);
-  }
-  __ Call(finally_entry_);
-
-  *stack_depth = 0;
-  *context_length = 0;
-  return previous_;
-}
-
-
-bool FullCodeGenerator::TryLiteralCompare(CompareOperation* expr) {
-  Expression* sub_expr;
-  Handle<String> check;
-  if (expr->IsLiteralCompareTypeof(&sub_expr, &check)) {
-    EmitLiteralCompareTypeof(expr, sub_expr, check);
-    return true;
-  }
-
-  if (expr->IsLiteralCompareUndefined(&sub_expr, isolate())) {
-    EmitLiteralCompareNil(expr, sub_expr, kUndefinedValue);
-    return true;
-  }
-
-  if (expr->IsLiteralCompareNull(&sub_expr)) {
-    EmitLiteralCompareNil(expr, sub_expr, kNullValue);
-    return true;
-  }
-
-  return false;
-}
-
-
-void BackEdgeTable::Patch(Isolate* isolate, Code* unoptimized) {
-  DisallowHeapAllocation no_gc;
-  Code* patch = isolate->builtins()->builtin(Builtins::kOnStackReplacement);
-
-  // Increment loop nesting level by one and iterate over the back edge table
-  // to find the matching loops to patch the interrupt
-  // call to an unconditional call to the replacement code.
-  int loop_nesting_level = unoptimized->allow_osr_at_loop_nesting_level() + 1;
-  if (loop_nesting_level > Code::kMaxLoopNestingMarker) return;
-
-  BackEdgeTable back_edges(unoptimized, &no_gc);
-  for (uint32_t i = 0; i < back_edges.length(); i++) {
-    if (static_cast<int>(back_edges.loop_depth(i)) == loop_nesting_level) {
-      DCHECK_EQ(INTERRUPT, GetBackEdgeState(isolate,
-                                            unoptimized,
-                                            back_edges.pc(i)));
-      PatchAt(unoptimized, back_edges.pc(i), ON_STACK_REPLACEMENT, patch);
-    }
-  }
-
-  unoptimized->set_allow_osr_at_loop_nesting_level(loop_nesting_level);
-  DCHECK(Verify(isolate, unoptimized));
-}
-
-
-void BackEdgeTable::Revert(Isolate* isolate, Code* unoptimized) {
-  DisallowHeapAllocation no_gc;
-  Code* patch = isolate->builtins()->builtin(Builtins::kInterruptCheck);
-
-  // Iterate over the back edge table and revert the patched interrupt calls.
-  int loop_nesting_level = unoptimized->allow_osr_at_loop_nesting_level();
-
-  BackEdgeTable back_edges(unoptimized, &no_gc);
-  for (uint32_t i = 0; i < back_edges.length(); i++) {
-    if (static_cast<int>(back_edges.loop_depth(i)) <= loop_nesting_level) {
-      DCHECK_NE(INTERRUPT, GetBackEdgeState(isolate,
-                                            unoptimized,
-                                            back_edges.pc(i)));
-      PatchAt(unoptimized, back_edges.pc(i), INTERRUPT, patch);
-    }
-  }
-
-  unoptimized->set_allow_osr_at_loop_nesting_level(0);
-  // Assert that none of the back edges are patched anymore.
-  DCHECK(Verify(isolate, unoptimized));
-}
-
-
-void BackEdgeTable::AddStackCheck(Handle<Code> code, uint32_t pc_offset) {
-  DisallowHeapAllocation no_gc;
-  Isolate* isolate = code->GetIsolate();
-  Address pc = code->instruction_start() + pc_offset;
-  Code* patch = isolate->builtins()->builtin(Builtins::kOsrAfterStackCheck);
-  PatchAt(*code, pc, OSR_AFTER_STACK_CHECK, patch);
-}
-
-
-void BackEdgeTable::RemoveStackCheck(Handle<Code> code, uint32_t pc_offset) {
-  DisallowHeapAllocation no_gc;
-  Isolate* isolate = code->GetIsolate();
-  Address pc = code->instruction_start() + pc_offset;
-
-  if (OSR_AFTER_STACK_CHECK == GetBackEdgeState(isolate, *code, pc)) {
-    Code* patch = isolate->builtins()->builtin(Builtins::kOnStackReplacement);
-    PatchAt(*code, pc, ON_STACK_REPLACEMENT, patch);
-  }
-}
-
-
-#ifdef DEBUG
-bool BackEdgeTable::Verify(Isolate* isolate, Code* unoptimized) {
-  DisallowHeapAllocation no_gc;
-  int loop_nesting_level = unoptimized->allow_osr_at_loop_nesting_level();
-  BackEdgeTable back_edges(unoptimized, &no_gc);
-  for (uint32_t i = 0; i < back_edges.length(); i++) {
-    uint32_t loop_depth = back_edges.loop_depth(i);
-    CHECK_LE(static_cast<int>(loop_depth), Code::kMaxLoopNestingMarker);
-    // Assert that all back edges for shallower loops (and only those)
-    // have already been patched.
-    CHECK_EQ((static_cast<int>(loop_depth) <= loop_nesting_level),
-             GetBackEdgeState(isolate,
-                              unoptimized,
-                              back_edges.pc(i)) != INTERRUPT);
-  }
-  return true;
-}
-#endif  // DEBUG
-
-
-FullCodeGenerator::EnterBlockScopeIfNeeded::EnterBlockScopeIfNeeded(
-    FullCodeGenerator* codegen, Scope* scope, BailoutId entry_id,
-    BailoutId declarations_id, BailoutId exit_id)
-    : codegen_(codegen), exit_id_(exit_id) {
-  saved_scope_ = codegen_->scope();
-
-  if (scope == NULL) {
-    codegen_->PrepareForBailoutForId(entry_id, NO_REGISTERS);
-    needs_block_context_ = false;
-  } else {
-    needs_block_context_ = scope->ContextLocalCount() > 0;
-    codegen_->scope_ = scope;
-    {
-      if (needs_block_context_) {
-        Comment cmnt(masm(), "[ Extend block context");
-        __ Push(scope->GetScopeInfo(codegen->isolate()));
-        codegen_->PushFunctionArgumentForContextAllocation();
-        __ CallRuntime(Runtime::kPushBlockContext, 2);
-
-        // Replace the context stored in the frame.
-        codegen_->StoreToFrameField(StandardFrameConstants::kContextOffset,
-                                    codegen_->context_register());
-      }
-      CHECK_EQ(0, scope->num_stack_slots());
-      codegen_->PrepareForBailoutForId(entry_id, NO_REGISTERS);
-    }
-    {
-      Comment cmnt(masm(), "[ Declarations");
-      codegen_->VisitDeclarations(scope->declarations());
-      codegen_->PrepareForBailoutForId(declarations_id, NO_REGISTERS);
-    }
-  }
-}
-
-
-FullCodeGenerator::EnterBlockScopeIfNeeded::~EnterBlockScopeIfNeeded() {
-  if (needs_block_context_) {
-    codegen_->LoadContextField(codegen_->context_register(),
-                               Context::PREVIOUS_INDEX);
-    // Update local stack frame context field.
-    codegen_->StoreToFrameField(StandardFrameConstants::kContextOffset,
-                                codegen_->context_register());
-  }
-  codegen_->PrepareForBailoutForId(exit_id_, NO_REGISTERS);
-  codegen_->scope_ = saved_scope_;
-}
-
-
-#undef __
-
-
-}  // namespace internal
-}  // namespace v8