Move Full-codegen into its own folder.

src/x64/full-codegen-x64.cc

-// 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"
-
-#if V8_TARGET_ARCH_X64
-
-#include "src/code-factory.h"
-#include "src/code-stubs.h"
-#include "src/codegen.h"
-#include "src/compiler.h"
-#include "src/debug.h"
-#include "src/full-codegen.h"
-#include "src/ic/ic.h"
-#include "src/parser.h"
-#include "src/scopes.h"
-
-namespace v8 {
-namespace internal {
-
-#define __ ACCESS_MASM(masm_)
-
-
-class JumpPatchSite BASE_EMBEDDED {
- public:
-  explicit JumpPatchSite(MacroAssembler* masm) : masm_(masm) {
-#ifdef DEBUG
-    info_emitted_ = false;
-#endif
-  }
-
-  ~JumpPatchSite() {
-    DCHECK(patch_site_.is_bound() == info_emitted_);
-  }
-
-  void EmitJumpIfNotSmi(Register reg,
-                        Label* target,
-                        Label::Distance near_jump = Label::kFar) {
-    __ testb(reg, Immediate(kSmiTagMask));
-    EmitJump(not_carry, target, near_jump);   // Always taken before patched.
-  }
-
-  void EmitJumpIfSmi(Register reg,
-                     Label* target,
-                     Label::Distance near_jump = Label::kFar) {
-    __ testb(reg, Immediate(kSmiTagMask));
-    EmitJump(carry, target, near_jump);  // Never taken before patched.
-  }
-
-  void EmitPatchInfo() {
-    if (patch_site_.is_bound()) {
-      int delta_to_patch_site = masm_->SizeOfCodeGeneratedSince(&patch_site_);
-      DCHECK(is_uint8(delta_to_patch_site));
-      __ testl(rax, Immediate(delta_to_patch_site));
-#ifdef DEBUG
-      info_emitted_ = true;
-#endif
-    } else {
-      __ nop();  // Signals no inlined code.
-    }
-  }
-
- private:
-  // jc will be patched with jz, jnc will become jnz.
-  void EmitJump(Condition cc, Label* target, Label::Distance near_jump) {
-    DCHECK(!patch_site_.is_bound() && !info_emitted_);
-    DCHECK(cc == carry || cc == not_carry);
-    __ bind(&patch_site_);
-    __ j(cc, target, near_jump);
-  }
-
-  MacroAssembler* masm_;
-  Label patch_site_;
-#ifdef DEBUG
-  bool info_emitted_;
-#endif
-};
-
-
-// Generate code for a JS function.  On entry to the function the receiver
-// and arguments have been pushed on the stack left to right, with the
-// return address on top of them.  The actual argument count matches the
-// formal parameter count expected by the function.
-//
-// The live registers are:
-//   o rdi: the JS function object being called (i.e. ourselves)
-//   o rsi: our context
-//   o rbp: our caller's frame pointer
-//   o rsp: stack pointer (pointing to return address)
-//
-// The function builds a JS frame.  Please see JavaScriptFrameConstants in
-// frames-x64.h for its layout.
-void FullCodeGenerator::Generate() {
-  CompilationInfo* info = info_;
-  profiling_counter_ = isolate()->factory()->NewCell(
-      Handle<Smi>(Smi::FromInt(FLAG_interrupt_budget), isolate()));
-  SetFunctionPosition(function());
-  Comment cmnt(masm_, "[ function compiled by full code generator");
-
-  ProfileEntryHookStub::MaybeCallEntryHook(masm_);
-
-#ifdef DEBUG
-  if (strlen(FLAG_stop_at) > 0 &&
-      info->function()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) {
-    __ int3();
-  }
-#endif
-
-  // Sloppy mode functions and builtins need to replace the receiver with the
-  // global proxy when called as functions (without an explicit receiver
-  // object).
-  if (is_sloppy(info->language_mode()) && !info->is_native() &&
-      info->MayUseThis() && info->scope()->has_this_declaration()) {
-    Label ok;
-    // +1 for return address.
-    StackArgumentsAccessor args(rsp, info->scope()->num_parameters());
-    __ movp(rcx, args.GetReceiverOperand());
-
-    __ CompareRoot(rcx, Heap::kUndefinedValueRootIndex);
-    __ j(not_equal, &ok, Label::kNear);
-
-    __ movp(rcx, GlobalObjectOperand());
-    __ movp(rcx, FieldOperand(rcx, GlobalObject::kGlobalProxyOffset));
-
-    __ movp(args.GetReceiverOperand(), rcx);
-
-    __ bind(&ok);
-  }
-
-  // Open a frame scope to indicate that there is a frame on the stack.  The
-  // MANUAL indicates that the scope shouldn't actually generate code to set up
-  // the frame (that is done below).
-  FrameScope frame_scope(masm_, StackFrame::MANUAL);
-
-  info->set_prologue_offset(masm_->pc_offset());
-  __ Prologue(info->IsCodePreAgingActive());
-  info->AddNoFrameRange(0, masm_->pc_offset());
-
-  { Comment cmnt(masm_, "[ Allocate locals");
-    int locals_count = info->scope()->num_stack_slots();
-    // Generators allocate locals, if any, in context slots.
-    DCHECK(!IsGeneratorFunction(info->function()->kind()) || locals_count == 0);
-    if (locals_count == 1) {
-      __ PushRoot(Heap::kUndefinedValueRootIndex);
-    } else if (locals_count > 1) {
-      if (locals_count >= 128) {
-        Label ok;
-        __ movp(rcx, rsp);
-        __ subp(rcx, Immediate(locals_count * kPointerSize));
-        __ CompareRoot(rcx, Heap::kRealStackLimitRootIndex);
-        __ j(above_equal, &ok, Label::kNear);
-        __ InvokeBuiltin(Builtins::STACK_OVERFLOW, CALL_FUNCTION);
-        __ bind(&ok);
-      }
-      __ LoadRoot(rdx, Heap::kUndefinedValueRootIndex);
-      const int kMaxPushes = 32;
-      if (locals_count >= kMaxPushes) {
-        int loop_iterations = locals_count / kMaxPushes;
-        __ movp(rcx, Immediate(loop_iterations));
-        Label loop_header;
-        __ bind(&loop_header);
-        // Do pushes.
-        for (int i = 0; i < kMaxPushes; i++) {
-          __ Push(rdx);
-        }
-        // Continue loop if not done.
-        __ decp(rcx);
-        __ j(not_zero, &loop_header, Label::kNear);
-      }
-      int remaining = locals_count % kMaxPushes;
-      // Emit the remaining pushes.
-      for (int i  = 0; i < remaining; i++) {
-        __ Push(rdx);
-      }
-    }
-  }
-
-  bool function_in_register = true;
-
-  // Possibly allocate a local context.
-  if (info->scope()->num_heap_slots() > 0) {
-    Comment cmnt(masm_, "[ Allocate context");
-    bool need_write_barrier = true;
-    int slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS;
-    // Argument to NewContext is the function, which is still in rdi.
-    if (info->scope()->is_script_scope()) {
-      __ Push(rdi);
-      __ Push(info->scope()->GetScopeInfo(info->isolate()));
-      __ CallRuntime(Runtime::kNewScriptContext, 2);
-    } else if (slots <= FastNewContextStub::kMaximumSlots) {
-      FastNewContextStub stub(isolate(), slots);
-      __ CallStub(&stub);
-      // Result of FastNewContextStub is always in new space.
-      need_write_barrier = false;
-    } else {
-      __ Push(rdi);
-      __ CallRuntime(Runtime::kNewFunctionContext, 1);
-    }
-    function_in_register = false;
-    // Context is returned in rax.  It replaces the context passed to us.
-    // It's saved in the stack and kept live in rsi.
-    __ movp(rsi, rax);
-    __ movp(Operand(rbp, StandardFrameConstants::kContextOffset), rax);
-
-    // Copy any necessary parameters into the context.
-    int num_parameters = info->scope()->num_parameters();
-    int first_parameter = info->scope()->has_this_declaration() ? -1 : 0;
-    for (int i = first_parameter; i < num_parameters; i++) {
-      Variable* var = (i == -1) ? scope()->receiver() : scope()->parameter(i);
-      if (var->IsContextSlot()) {
-        int parameter_offset = StandardFrameConstants::kCallerSPOffset +
-            (num_parameters - 1 - i) * kPointerSize;
-        // Load parameter from stack.
-        __ movp(rax, Operand(rbp, parameter_offset));
-        // Store it in the context.
-        int context_offset = Context::SlotOffset(var->index());
-        __ movp(Operand(rsi, context_offset), rax);
-        // Update the write barrier.  This clobbers rax and rbx.
-        if (need_write_barrier) {
-          __ RecordWriteContextSlot(
-              rsi, context_offset, rax, rbx, kDontSaveFPRegs);
-        } else if (FLAG_debug_code) {
-          Label done;
-          __ JumpIfInNewSpace(rsi, rax, &done, Label::kNear);
-          __ Abort(kExpectedNewSpaceObject);
-          __ bind(&done);
-        }
-      }
-    }
-  }
-
-  // Possibly set up a local binding to the this function which is used in
-  // derived constructors with super calls.
-  Variable* this_function_var = scope()->this_function_var();
-  if (this_function_var != nullptr) {
-    Comment cmnt(masm_, "[ This function");
-    if (!function_in_register) {
-      __ movp(rdi, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
-      // The write barrier clobbers register again, keep is marked as such.
-    }
-    SetVar(this_function_var, rdi, rbx, rdx);
-  }
-
-  Variable* new_target_var = scope()->new_target_var();
-  if (new_target_var != nullptr) {
-    Comment cmnt(masm_, "[ new.target");
-
-    __ movp(rax, Operand(rbp, StandardFrameConstants::kCallerFPOffset));
-    Label non_adaptor_frame;
-    __ Cmp(Operand(rax, StandardFrameConstants::kContextOffset),
-           Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR));
-    __ j(not_equal, &non_adaptor_frame);
-    __ movp(rax, Operand(rax, StandardFrameConstants::kCallerFPOffset));
-
-    __ bind(&non_adaptor_frame);
-    __ Cmp(Operand(rax, StandardFrameConstants::kMarkerOffset),
-           Smi::FromInt(StackFrame::CONSTRUCT));
-
-    Label non_construct_frame, done;
-    __ j(not_equal, &non_construct_frame);
-
-    // Construct frame
-    __ movp(rax,
-            Operand(rax, ConstructFrameConstants::kOriginalConstructorOffset));
-    __ jmp(&done);
-
-    // Non-construct frame
-    __ bind(&non_construct_frame);
-    __ LoadRoot(rax, Heap::kUndefinedValueRootIndex);
-
-    __ bind(&done);
-    SetVar(new_target_var, rax, rbx, rdx);
-  }
-
-  // Possibly allocate RestParameters
-  int rest_index;
-  Variable* rest_param = scope()->rest_parameter(&rest_index);
-  if (rest_param) {
-    Comment cmnt(masm_, "[ Allocate rest parameter array");
-
-    int num_parameters = info->scope()->num_parameters();
-    int offset = num_parameters * kPointerSize;
-
-    __ leap(rdx,
-            Operand(rbp, StandardFrameConstants::kCallerSPOffset + offset));
-    __ Push(rdx);
-    __ Push(Smi::FromInt(num_parameters));
-    __ Push(Smi::FromInt(rest_index));
-    __ Push(Smi::FromInt(language_mode()));
-
-    RestParamAccessStub stub(isolate());
-    __ CallStub(&stub);
-
-    SetVar(rest_param, rax, rbx, rdx);
-  }
-
-  // Possibly allocate an arguments object.
-  Variable* arguments = scope()->arguments();
-  if (arguments != NULL) {
-    // Arguments object must be allocated after the context object, in
-    // case the "arguments" or ".arguments" variables are in the context.
-    Comment cmnt(masm_, "[ Allocate arguments object");
-    if (function_in_register) {
-      __ Push(rdi);
-    } else {
-      __ Push(Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
-    }
-    // The receiver is just before the parameters on the caller's stack.
-    int num_parameters = info->scope()->num_parameters();
-    int offset = num_parameters * kPointerSize;
-    __ leap(rdx,
-           Operand(rbp, StandardFrameConstants::kCallerSPOffset + offset));
-    __ Push(rdx);
-    __ Push(Smi::FromInt(num_parameters));
-    // Arguments to ArgumentsAccessStub:
-    //   function, receiver address, parameter count.
-    // The stub will rewrite receiver and parameter count if the previous
-    // stack frame was an arguments adapter frame.
-
-    ArgumentsAccessStub::Type type;
-    if (is_strict(language_mode()) || !is_simple_parameter_list()) {
-      type = ArgumentsAccessStub::NEW_STRICT;
-    } else if (function()->has_duplicate_parameters()) {
-      type = ArgumentsAccessStub::NEW_SLOPPY_SLOW;
-    } else {
-      type = ArgumentsAccessStub::NEW_SLOPPY_FAST;
-    }
-    ArgumentsAccessStub stub(isolate(), type);
-    __ CallStub(&stub);
-
-    SetVar(arguments, rax, rbx, rdx);
-  }
-
-  if (FLAG_trace) {
-    __ CallRuntime(Runtime::kTraceEnter, 0);
-  }
-
-  // Visit the declarations and body unless there is an illegal
-  // redeclaration.
-  if (scope()->HasIllegalRedeclaration()) {
-    Comment cmnt(masm_, "[ Declarations");
-    scope()->VisitIllegalRedeclaration(this);
-
-  } else {
-    PrepareForBailoutForId(BailoutId::FunctionEntry(), NO_REGISTERS);
-    { Comment cmnt(masm_, "[ Declarations");
-      VisitDeclarations(scope()->declarations());
-    }
-
-    { Comment cmnt(masm_, "[ Stack check");
-      PrepareForBailoutForId(BailoutId::Declarations(), NO_REGISTERS);
-       Label ok;
-       __ CompareRoot(rsp, Heap::kStackLimitRootIndex);
-       __ j(above_equal, &ok, Label::kNear);
-       __ call(isolate()->builtins()->StackCheck(), RelocInfo::CODE_TARGET);
-       __ bind(&ok);
-    }
-
-    { Comment cmnt(masm_, "[ Body");
-      DCHECK(loop_depth() == 0);
-      VisitStatements(function()->body());
-      DCHECK(loop_depth() == 0);
-    }
-  }
-
-  // Always emit a 'return undefined' in case control fell off the end of
-  // the body.
-  { Comment cmnt(masm_, "[ return <undefined>;");
-    __ LoadRoot(rax, Heap::kUndefinedValueRootIndex);
-    EmitReturnSequence();
-  }
-}
-
-
-void FullCodeGenerator::ClearAccumulator() {
-  __ Set(rax, 0);
-}
-
-
-void FullCodeGenerator::EmitProfilingCounterDecrement(int delta) {
-  __ Move(rbx, profiling_counter_, RelocInfo::EMBEDDED_OBJECT);
-  __ SmiAddConstant(FieldOperand(rbx, Cell::kValueOffset),
-                    Smi::FromInt(-delta));
-}
-
-
-void FullCodeGenerator::EmitProfilingCounterReset() {
-  int reset_value = FLAG_interrupt_budget;
-  __ Move(rbx, profiling_counter_, RelocInfo::EMBEDDED_OBJECT);
-  __ Move(kScratchRegister, Smi::FromInt(reset_value));
-  __ movp(FieldOperand(rbx, Cell::kValueOffset), kScratchRegister);
-}
-
-
-static const byte kJnsOffset = kPointerSize == kInt64Size ? 0x1d : 0x14;
-
-
-void FullCodeGenerator::EmitBackEdgeBookkeeping(IterationStatement* stmt,
-                                                Label* back_edge_target) {
-  Comment cmnt(masm_, "[ Back edge bookkeeping");
-  Label ok;
-
-  DCHECK(back_edge_target->is_bound());
-  int distance = masm_->SizeOfCodeGeneratedSince(back_edge_target);
-  int weight = Min(kMaxBackEdgeWeight,
-                   Max(1, distance / kCodeSizeMultiplier));
-  EmitProfilingCounterDecrement(weight);
-
-  __ j(positive, &ok, Label::kNear);
-  {
-    PredictableCodeSizeScope predictible_code_size_scope(masm_, kJnsOffset);
-    DontEmitDebugCodeScope dont_emit_debug_code_scope(masm_);
-    __ call(isolate()->builtins()->InterruptCheck(), RelocInfo::CODE_TARGET);
-
-    // Record a mapping of this PC offset to the OSR id.  This is used to find
-    // the AST id from the unoptimized code in order to use it as a key into
-    // the deoptimization input data found in the optimized code.
-    RecordBackEdge(stmt->OsrEntryId());
-
-    EmitProfilingCounterReset();
-  }
-  __ bind(&ok);
-
-  PrepareForBailoutForId(stmt->EntryId(), NO_REGISTERS);
-  // Record a mapping of the OSR id to this PC.  This is used if the OSR
-  // entry becomes the target of a bailout.  We don't expect it to be, but
-  // we want it to work if it is.
-  PrepareForBailoutForId(stmt->OsrEntryId(), NO_REGISTERS);
-}
-
-
-void FullCodeGenerator::EmitReturnSequence() {
-  Comment cmnt(masm_, "[ Return sequence");
-  if (return_label_.is_bound()) {
-    __ jmp(&return_label_);
-  } else {
-    __ bind(&return_label_);
-    if (FLAG_trace) {
-      __ Push(rax);
-      __ CallRuntime(Runtime::kTraceExit, 1);
-    }
-    // Pretend that the exit is a backwards jump to the entry.
-    int weight = 1;
-    if (info_->ShouldSelfOptimize()) {
-      weight = FLAG_interrupt_budget / FLAG_self_opt_count;
-    } else {
-      int distance = masm_->pc_offset();
-      weight = Min(kMaxBackEdgeWeight,
-                   Max(1, distance / kCodeSizeMultiplier));
-    }
-    EmitProfilingCounterDecrement(weight);
-    Label ok;
-    __ j(positive, &ok, Label::kNear);
-    __ Push(rax);
-    __ call(isolate()->builtins()->InterruptCheck(),
-            RelocInfo::CODE_TARGET);
-    __ Pop(rax);
-    EmitProfilingCounterReset();
-    __ bind(&ok);
-
-    SetReturnPosition(function());
-    int no_frame_start = masm_->pc_offset();
-    __ leave();
-
-    int arg_count = info_->scope()->num_parameters() + 1;
-    int arguments_bytes = arg_count * kPointerSize;
-    __ Ret(arguments_bytes, rcx);
-
-    info_->AddNoFrameRange(no_frame_start, masm_->pc_offset());
-  }
-}
-
-
-void FullCodeGenerator::StackValueContext::Plug(Variable* var) const {
-  DCHECK(var->IsStackAllocated() || var->IsContextSlot());
-  MemOperand operand = codegen()->VarOperand(var, result_register());
-  __ Push(operand);
-}
-
-
-void FullCodeGenerator::EffectContext::Plug(Heap::RootListIndex index) const {
-}
-
-
-void FullCodeGenerator::AccumulatorValueContext::Plug(
-    Heap::RootListIndex index) const {
-  __ LoadRoot(result_register(), index);
-}
-
-
-void FullCodeGenerator::StackValueContext::Plug(
-    Heap::RootListIndex index) const {
-  __ PushRoot(index);
-}
-
-
-void FullCodeGenerator::TestContext::Plug(Heap::RootListIndex index) const {
-  codegen()->PrepareForBailoutBeforeSplit(condition(),
-                                          true,
-                                          true_label_,
-                                          false_label_);
-  if (index == Heap::kUndefinedValueRootIndex ||
-      index == Heap::kNullValueRootIndex ||
-      index == Heap::kFalseValueRootIndex) {
-    if (false_label_ != fall_through_) __ jmp(false_label_);
-  } else if (index == Heap::kTrueValueRootIndex) {
-    if (true_label_ != fall_through_) __ jmp(true_label_);
-  } else {
-    __ LoadRoot(result_register(), index);
-    codegen()->DoTest(this);
-  }
-}
-
-
-void FullCodeGenerator::EffectContext::Plug(Handle<Object> lit) const {
-}
-
-
-void FullCodeGenerator::AccumulatorValueContext::Plug(
-    Handle<Object> lit) const {
-  if (lit->IsSmi()) {
-    __ SafeMove(result_register(), Smi::cast(*lit));
-  } else {
-    __ Move(result_register(), lit);
-  }
-}
-
-
-void FullCodeGenerator::StackValueContext::Plug(Handle<Object> lit) const {
-  if (lit->IsSmi()) {
-    __ SafePush(Smi::cast(*lit));
-  } else {
-    __ Push(lit);
-  }
-}
-
-
-void FullCodeGenerator::TestContext::Plug(Handle<Object> lit) const {
-  codegen()->PrepareForBailoutBeforeSplit(condition(),
-                                          true,
-                                          true_label_,
-                                          false_label_);
-  DCHECK(!lit->IsUndetectableObject());  // There are no undetectable literals.
-  if (lit->IsUndefined() || lit->IsNull() || lit->IsFalse()) {
-    if (false_label_ != fall_through_) __ jmp(false_label_);
-  } else if (lit->IsTrue() || lit->IsJSObject()) {
-    if (true_label_ != fall_through_) __ jmp(true_label_);
-  } else if (lit->IsString()) {
-    if (String::cast(*lit)->length() == 0) {
-      if (false_label_ != fall_through_) __ jmp(false_label_);
-    } else {
-      if (true_label_ != fall_through_) __ jmp(true_label_);
-    }
-  } else if (lit->IsSmi()) {
-    if (Smi::cast(*lit)->value() == 0) {
-      if (false_label_ != fall_through_) __ jmp(false_label_);
-    } else {
-      if (true_label_ != fall_through_) __ jmp(true_label_);
-    }
-  } else {
-    // For simplicity we always test the accumulator register.
-    __ Move(result_register(), lit);
-    codegen()->DoTest(this);
-  }
-}
-
-
-void FullCodeGenerator::EffectContext::DropAndPlug(int count,
-                                                   Register reg) const {
-  DCHECK(count > 0);
-  __ Drop(count);
-}
-
-
-void FullCodeGenerator::AccumulatorValueContext::DropAndPlug(
-    int count,
-    Register reg) const {
-  DCHECK(count > 0);
-  __ Drop(count);
-  __ Move(result_register(), reg);
-}
-
-
-void FullCodeGenerator::StackValueContext::DropAndPlug(int count,
-                                                       Register reg) const {
-  DCHECK(count > 0);
-  if (count > 1) __ Drop(count - 1);
-  __ movp(Operand(rsp, 0), reg);
-}
-
-
-void FullCodeGenerator::TestContext::DropAndPlug(int count,
-                                                 Register reg) const {
-  DCHECK(count > 0);
-  // For simplicity we always test the accumulator register.
-  __ Drop(count);
-  __ Move(result_register(), reg);
-  codegen()->PrepareForBailoutBeforeSplit(condition(), false, NULL, NULL);
-  codegen()->DoTest(this);
-}
-
-
-void FullCodeGenerator::EffectContext::Plug(Label* materialize_true,
-                                            Label* materialize_false) const {
-  DCHECK(materialize_true == materialize_false);
-  __ bind(materialize_true);
-}
-
-
-void FullCodeGenerator::AccumulatorValueContext::Plug(
-    Label* materialize_true,
-    Label* materialize_false) const {
-  Label done;
-  __ bind(materialize_true);
-  __ Move(result_register(), isolate()->factory()->true_value());
-  __ jmp(&done, Label::kNear);
-  __ bind(materialize_false);
-  __ Move(result_register(), isolate()->factory()->false_value());
-  __ bind(&done);
-}
-
-
-void FullCodeGenerator::StackValueContext::Plug(
-    Label* materialize_true,
-    Label* materialize_false) const {
-  Label done;
-  __ bind(materialize_true);
-  __ Push(isolate()->factory()->true_value());
-  __ jmp(&done, Label::kNear);
-  __ bind(materialize_false);
-  __ Push(isolate()->factory()->false_value());
-  __ bind(&done);
-}
-
-
-void FullCodeGenerator::TestContext::Plug(Label* materialize_true,
-                                          Label* materialize_false) const {
-  DCHECK(materialize_true == true_label_);
-  DCHECK(materialize_false == false_label_);
-}
-
-
-void FullCodeGenerator::AccumulatorValueContext::Plug(bool flag) const {
-  Heap::RootListIndex value_root_index =
-      flag ? Heap::kTrueValueRootIndex : Heap::kFalseValueRootIndex;
-  __ LoadRoot(result_register(), value_root_index);
-}
-
-
-void FullCodeGenerator::StackValueContext::Plug(bool flag) const {
-  Heap::RootListIndex value_root_index =
-      flag ? Heap::kTrueValueRootIndex : Heap::kFalseValueRootIndex;
-  __ PushRoot(value_root_index);
-}
-
-
-void FullCodeGenerator::TestContext::Plug(bool flag) const {
-  codegen()->PrepareForBailoutBeforeSplit(condition(),
-                                          true,
-                                          true_label_,
-                                          false_label_);
-  if (flag) {
-    if (true_label_ != fall_through_) __ jmp(true_label_);
-  } else {
-    if (false_label_ != fall_through_) __ jmp(false_label_);
-  }
-}
-
-
-void FullCodeGenerator::DoTest(Expression* condition,
-                               Label* if_true,
-                               Label* if_false,
-                               Label* fall_through) {
-  Handle<Code> ic = ToBooleanStub::GetUninitialized(isolate());
-  CallIC(ic, condition->test_id());
-  __ testp(result_register(), result_register());
-  // The stub returns nonzero for true.
-  Split(not_zero, if_true, if_false, fall_through);
-}
-
-
-void FullCodeGenerator::Split(Condition cc,
-                              Label* if_true,
-                              Label* if_false,
-                              Label* fall_through) {
-  if (if_false == fall_through) {
-    __ j(cc, if_true);
-  } else if (if_true == fall_through) {
-    __ j(NegateCondition(cc), if_false);
-  } else {
-    __ j(cc, if_true);
-    __ jmp(if_false);
-  }
-}
-
-
-MemOperand FullCodeGenerator::StackOperand(Variable* var) {
-  DCHECK(var->IsStackAllocated());
-  // Offset is negative because higher indexes are at lower addresses.
-  int offset = -var->index() * kPointerSize;
-  // Adjust by a (parameter or local) base offset.
-  if (var->IsParameter()) {
-    offset += kFPOnStackSize + kPCOnStackSize +
-              (info_->scope()->num_parameters() - 1) * kPointerSize;
-  } else {
-    offset += JavaScriptFrameConstants::kLocal0Offset;
-  }
-  return Operand(rbp, offset);
-}
-
-
-MemOperand FullCodeGenerator::VarOperand(Variable* var, Register scratch) {
-  DCHECK(var->IsContextSlot() || var->IsStackAllocated());
-  if (var->IsContextSlot()) {
-    int context_chain_length = scope()->ContextChainLength(var->scope());
-    __ LoadContext(scratch, context_chain_length);
-    return ContextOperand(scratch, var->index());
-  } else {
-    return StackOperand(var);
-  }
-}
-
-
-void FullCodeGenerator::GetVar(Register dest, Variable* var) {
-  DCHECK(var->IsContextSlot() || var->IsStackAllocated());
-  MemOperand location = VarOperand(var, dest);
-  __ movp(dest, location);
-}
-
-
-void FullCodeGenerator::SetVar(Variable* var,
-                               Register src,
-                               Register scratch0,
-                               Register scratch1) {
-  DCHECK(var->IsContextSlot() || var->IsStackAllocated());
-  DCHECK(!scratch0.is(src));
-  DCHECK(!scratch0.is(scratch1));
-  DCHECK(!scratch1.is(src));
-  MemOperand location = VarOperand(var, scratch0);
-  __ movp(location, src);
-
-  // Emit the write barrier code if the location is in the heap.
-  if (var->IsContextSlot()) {
-    int offset = Context::SlotOffset(var->index());
-    __ RecordWriteContextSlot(scratch0, offset, src, scratch1, kDontSaveFPRegs);
-  }
-}
-
-
-void FullCodeGenerator::PrepareForBailoutBeforeSplit(Expression* expr,
-                                                     bool should_normalize,
-                                                     Label* if_true,
-                                                     Label* if_false) {
-  // Only prepare for bailouts before splits if we're in a test
-  // context. Otherwise, we let the Visit function deal with the
-  // preparation to avoid preparing with the same AST id twice.
-  if (!context()->IsTest() || !info_->IsOptimizable()) return;
-
-  Label skip;
-  if (should_normalize) __ jmp(&skip, Label::kNear);
-  PrepareForBailout(expr, TOS_REG);
-  if (should_normalize) {
-    __ CompareRoot(rax, Heap::kTrueValueRootIndex);
-    Split(equal, if_true, if_false, NULL);
-    __ bind(&skip);
-  }
-}
-
-
-void FullCodeGenerator::EmitDebugCheckDeclarationContext(Variable* variable) {
-  // The variable in the declaration always resides in the current context.
-  DCHECK_EQ(0, scope()->ContextChainLength(variable->scope()));
-  if (generate_debug_code_) {
-    // Check that we're not inside a with or catch context.
-    __ movp(rbx, FieldOperand(rsi, HeapObject::kMapOffset));
-    __ CompareRoot(rbx, Heap::kWithContextMapRootIndex);
-    __ Check(not_equal, kDeclarationInWithContext);
-    __ CompareRoot(rbx, Heap::kCatchContextMapRootIndex);
-    __ Check(not_equal, kDeclarationInCatchContext);
-  }
-}
-
-
-void FullCodeGenerator::VisitVariableDeclaration(
-    VariableDeclaration* declaration) {
-  // If it was not possible to allocate the variable at compile time, we
-  // need to "declare" it at runtime to make sure it actually exists in the
-  // local context.
-  VariableProxy* proxy = declaration->proxy();
-  VariableMode mode = declaration->mode();
-  Variable* variable = proxy->var();
-  bool hole_init = mode == LET || mode == CONST || mode == CONST_LEGACY;
-  switch (variable->location()) {
-    case VariableLocation::GLOBAL:
-    case VariableLocation::UNALLOCATED:
-      globals_->Add(variable->name(), zone());
-      globals_->Add(variable->binding_needs_init()
-                        ? isolate()->factory()->the_hole_value()
-                    : isolate()->factory()->undefined_value(),
-                    zone());
-      break;
-
-    case VariableLocation::PARAMETER:
-    case VariableLocation::LOCAL:
-      if (hole_init) {
-        Comment cmnt(masm_, "[ VariableDeclaration");
-        __ LoadRoot(kScratchRegister, Heap::kTheHoleValueRootIndex);
-        __ movp(StackOperand(variable), kScratchRegister);
-      }
-      break;
-
-    case VariableLocation::CONTEXT:
-      if (hole_init) {
-        Comment cmnt(masm_, "[ VariableDeclaration");
-        EmitDebugCheckDeclarationContext(variable);
-        __ LoadRoot(kScratchRegister, Heap::kTheHoleValueRootIndex);
-        __ movp(ContextOperand(rsi, variable->index()), kScratchRegister);
-        // No write barrier since the hole value is in old space.
-        PrepareForBailoutForId(proxy->id(), NO_REGISTERS);
-      }
-      break;
-
-    case VariableLocation::LOOKUP: {
-      Comment cmnt(masm_, "[ VariableDeclaration");
-      __ Push(rsi);
-      __ Push(variable->name());
-      // Declaration nodes are always introduced in one of four modes.
-      DCHECK(IsDeclaredVariableMode(mode));
-      PropertyAttributes attr =
-          IsImmutableVariableMode(mode) ? READ_ONLY : NONE;
-      __ Push(Smi::FromInt(attr));
-      // Push initial value, if any.
-      // Note: For variables we must not push an initial value (such as
-      // 'undefined') because we may have a (legal) redeclaration and we
-      // must not destroy the current value.
-      if (hole_init) {
-        __ PushRoot(Heap::kTheHoleValueRootIndex);
-      } else {
-        __ Push(Smi::FromInt(0));  // Indicates no initial value.
-      }
-      __ CallRuntime(Runtime::kDeclareLookupSlot, 4);
-      break;
-    }
-  }
-}
-
-
-void FullCodeGenerator::VisitFunctionDeclaration(
-    FunctionDeclaration* declaration) {
-  VariableProxy* proxy = declaration->proxy();
-  Variable* variable = proxy->var();
-  switch (variable->location()) {
-    case VariableLocation::GLOBAL:
-    case VariableLocation::UNALLOCATED: {
-      globals_->Add(variable->name(), zone());
-      Handle<SharedFunctionInfo> function =
-          Compiler::GetSharedFunctionInfo(declaration->fun(), script(), info_);
-      // Check for stack-overflow exception.
-      if (function.is_null()) return SetStackOverflow();
-      globals_->Add(function, zone());
-      break;
-    }
-
-    case VariableLocation::PARAMETER:
-    case VariableLocation::LOCAL: {
-      Comment cmnt(masm_, "[ FunctionDeclaration");
-      VisitForAccumulatorValue(declaration->fun());
-      __ movp(StackOperand(variable), result_register());
-      break;
-    }
-
-    case VariableLocation::CONTEXT: {
-      Comment cmnt(masm_, "[ FunctionDeclaration");
-      EmitDebugCheckDeclarationContext(variable);
-      VisitForAccumulatorValue(declaration->fun());
-      __ movp(ContextOperand(rsi, variable->index()), result_register());
-      int offset = Context::SlotOffset(variable->index());
-      // We know that we have written a function, which is not a smi.
-      __ RecordWriteContextSlot(rsi,
-                                offset,
-                                result_register(),
-                                rcx,
-                                kDontSaveFPRegs,
-                                EMIT_REMEMBERED_SET,
-                                OMIT_SMI_CHECK);
-      PrepareForBailoutForId(proxy->id(), NO_REGISTERS);
-      break;
-    }
-
-    case VariableLocation::LOOKUP: {
-      Comment cmnt(masm_, "[ FunctionDeclaration");
-      __ Push(rsi);
-      __ Push(variable->name());
-      __ Push(Smi::FromInt(NONE));
-      VisitForStackValue(declaration->fun());
-      __ CallRuntime(Runtime::kDeclareLookupSlot, 4);
-      break;
-    }
-  }
-}
-
-
-void FullCodeGenerator::DeclareGlobals(Handle<FixedArray> pairs) {
-  // Call the runtime to declare the globals.
-  __ Push(rsi);  // The context is the first argument.
-  __ Push(pairs);
-  __ Push(Smi::FromInt(DeclareGlobalsFlags()));
-  __ CallRuntime(Runtime::kDeclareGlobals, 3);
-  // Return value is ignored.
-}
-
-
-void FullCodeGenerator::DeclareModules(Handle<FixedArray> descriptions) {
-  // Call the runtime to declare the modules.
-  __ Push(descriptions);
-  __ CallRuntime(Runtime::kDeclareModules, 1);
-  // Return value is ignored.
-}
-
-
-void FullCodeGenerator::VisitSwitchStatement(SwitchStatement* stmt) {
-  Comment cmnt(masm_, "[ SwitchStatement");
-  Breakable nested_statement(this, stmt);
-  SetStatementPosition(stmt);
-
-  // Keep the switch value on the stack until a case matches.
-  VisitForStackValue(stmt->tag());
-  PrepareForBailoutForId(stmt->EntryId(), NO_REGISTERS);
-
-  ZoneList<CaseClause*>* clauses = stmt->cases();
-  CaseClause* default_clause = NULL;  // Can occur anywhere in the list.
-
-  Label next_test;  // Recycled for each test.
-  // Compile all the tests with branches to their bodies.
-  for (int i = 0; i < clauses->length(); i++) {
-    CaseClause* clause = clauses->at(i);
-    clause->body_target()->Unuse();
-
-    // The default is not a test, but remember it as final fall through.
-    if (clause->is_default()) {
-      default_clause = clause;
-      continue;
-    }
-
-    Comment cmnt(masm_, "[ Case comparison");
-    __ bind(&next_test);
-    next_test.Unuse();
-
-    // Compile the label expression.
-    VisitForAccumulatorValue(clause->label());
-
-    // Perform the comparison as if via '==='.
-    __ movp(rdx, Operand(rsp, 0));  // Switch value.
-    bool inline_smi_code = ShouldInlineSmiCase(Token::EQ_STRICT);
-    JumpPatchSite patch_site(masm_);
-    if (inline_smi_code) {
-      Label slow_case;
-      __ movp(rcx, rdx);
-      __ orp(rcx, rax);
-      patch_site.EmitJumpIfNotSmi(rcx, &slow_case, Label::kNear);
-
-      __ cmpp(rdx, rax);
-      __ j(not_equal, &next_test);
-      __ Drop(1);  // Switch value is no longer needed.
-      __ jmp(clause->body_target());
-      __ bind(&slow_case);
-    }
-
-    // Record position before stub call for type feedback.
-    SetExpressionPosition(clause);
-    Handle<Code> ic = CodeFactory::CompareIC(isolate(), Token::EQ_STRICT,
-                                             strength(language_mode())).code();
-    CallIC(ic, clause->CompareId());
-    patch_site.EmitPatchInfo();
-
-    Label skip;
-    __ jmp(&skip, Label::kNear);
-    PrepareForBailout(clause, TOS_REG);
-    __ CompareRoot(rax, Heap::kTrueValueRootIndex);
-    __ j(not_equal, &next_test);
-    __ Drop(1);
-    __ jmp(clause->body_target());
-    __ bind(&skip);
-
-    __ testp(rax, rax);
-    __ j(not_equal, &next_test);
-    __ Drop(1);  // Switch value is no longer needed.
-    __ jmp(clause->body_target());
-  }
-
-  // Discard the test value and jump to the default if present, otherwise to
-  // the end of the statement.
-  __ bind(&next_test);
-  __ Drop(1);  // Switch value is no longer needed.
-  if (default_clause == NULL) {
-    __ jmp(nested_statement.break_label());
-  } else {
-    __ jmp(default_clause->body_target());
-  }
-
-  // Compile all the case bodies.
-  for (int i = 0; i < clauses->length(); i++) {
-    Comment cmnt(masm_, "[ Case body");
-    CaseClause* clause = clauses->at(i);
-    __ bind(clause->body_target());
-    PrepareForBailoutForId(clause->EntryId(), NO_REGISTERS);
-    VisitStatements(clause->statements());
-  }
-
-  __ bind(nested_statement.break_label());
-  PrepareForBailoutForId(stmt->ExitId(), NO_REGISTERS);
-}
-
-
-void FullCodeGenerator::VisitForInStatement(ForInStatement* stmt) {
-  Comment cmnt(masm_, "[ ForInStatement");
-  SetStatementPosition(stmt, SKIP_BREAK);
-
-  FeedbackVectorSlot slot = stmt->ForInFeedbackSlot();
-
-  Label loop, exit;
-  ForIn loop_statement(this, stmt);
-  increment_loop_depth();
-
-  // Get the object to enumerate over. If the object is null or undefined, skip
-  // over the loop.  See ECMA-262 version 5, section 12.6.4.
-  SetExpressionAsStatementPosition(stmt->enumerable());
-  VisitForAccumulatorValue(stmt->enumerable());
-  __ CompareRoot(rax, Heap::kUndefinedValueRootIndex);
-  __ j(equal, &exit);
-  Register null_value = rdi;
-  __ LoadRoot(null_value, Heap::kNullValueRootIndex);
-  __ cmpp(rax, null_value);
-  __ j(equal, &exit);
-
-  PrepareForBailoutForId(stmt->PrepareId(), TOS_REG);
-
-  // Convert the object to a JS object.
-  Label convert, done_convert;
-  __ JumpIfSmi(rax, &convert);
-  __ CmpObjectType(rax, FIRST_SPEC_OBJECT_TYPE, rcx);
-  __ j(above_equal, &done_convert);
-  __ bind(&convert);
-  __ Push(rax);
-  __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION);
-  __ bind(&done_convert);
-  PrepareForBailoutForId(stmt->ToObjectId(), TOS_REG);
-  __ Push(rax);
-
-  // Check for proxies.
-  Label call_runtime;
-  STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE);
-  __ CmpObjectType(rax, LAST_JS_PROXY_TYPE, rcx);
-  __ j(below_equal, &call_runtime);
-
-  // Check cache validity in generated code. This is a fast case for
-  // the JSObject::IsSimpleEnum cache validity checks. If we cannot
-  // guarantee cache validity, call the runtime system to check cache
-  // validity or get the property names in a fixed array.
-  __ CheckEnumCache(null_value, &call_runtime);
-
-  // The enum cache is valid.  Load the map of the object being
-  // iterated over and use the cache for the iteration.
-  Label use_cache;
-  __ movp(rax, FieldOperand(rax, HeapObject::kMapOffset));
-  __ jmp(&use_cache, Label::kNear);
-
-  // Get the set of properties to enumerate.
-  __ bind(&call_runtime);
-  __ Push(rax);  // Duplicate the enumerable object on the stack.
-  __ CallRuntime(Runtime::kGetPropertyNamesFast, 1);
-  PrepareForBailoutForId(stmt->EnumId(), TOS_REG);
-
-  // If we got a map from the runtime call, we can do a fast
-  // modification check. Otherwise, we got a fixed array, and we have
-  // to do a slow check.
-  Label fixed_array;
-  __ CompareRoot(FieldOperand(rax, HeapObject::kMapOffset),
-                 Heap::kMetaMapRootIndex);
-  __ j(not_equal, &fixed_array);
-
-  // We got a map in register rax. Get the enumeration cache from it.
-  __ bind(&use_cache);
-
-  Label no_descriptors;
-
-  __ EnumLength(rdx, rax);
-  __ Cmp(rdx, Smi::FromInt(0));
-  __ j(equal, &no_descriptors);
-
-  __ LoadInstanceDescriptors(rax, rcx);
-  __ movp(rcx, FieldOperand(rcx, DescriptorArray::kEnumCacheOffset));
-  __ movp(rcx, FieldOperand(rcx, DescriptorArray::kEnumCacheBridgeCacheOffset));
-
-  // Set up the four remaining stack slots.
-  __ Push(rax);  // Map.
-  __ Push(rcx);  // Enumeration cache.
-  __ Push(rdx);  // Number of valid entries for the map in the enum cache.
-  __ Push(Smi::FromInt(0));  // Initial index.
-  __ jmp(&loop);
-
-  __ bind(&no_descriptors);
-  __ addp(rsp, Immediate(kPointerSize));
-  __ jmp(&exit);
-
-  // We got a fixed array in register rax. Iterate through that.
-  Label non_proxy;
-  __ bind(&fixed_array);
-
-  // No need for a write barrier, we are storing a Smi in the feedback vector.
-  __ Move(rbx, FeedbackVector());
-  int vector_index = FeedbackVector()->GetIndex(slot);
-  __ Move(FieldOperand(rbx, FixedArray::OffsetOfElementAt(vector_index)),
-          TypeFeedbackVector::MegamorphicSentinel(isolate()));
-  __ Move(rbx, Smi::FromInt(1));  // Smi indicates slow check
-  __ movp(rcx, Operand(rsp, 0 * kPointerSize));  // Get enumerated object
-  STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE);
-  __ CmpObjectType(rcx, LAST_JS_PROXY_TYPE, rcx);
-  __ j(above, &non_proxy);
-  __ Move(rbx, Smi::FromInt(0));  // Zero indicates proxy
-  __ bind(&non_proxy);
-  __ Push(rbx);  // Smi
-  __ Push(rax);  // Array
-  __ movp(rax, FieldOperand(rax, FixedArray::kLengthOffset));
-  __ Push(rax);  // Fixed array length (as smi).
-  __ Push(Smi::FromInt(0));  // Initial index.
-
-  // Generate code for doing the condition check.
-  PrepareForBailoutForId(stmt->BodyId(), NO_REGISTERS);
-  __ bind(&loop);
-  SetExpressionAsStatementPosition(stmt->each());
-
-  __ movp(rax, Operand(rsp, 0 * kPointerSize));  // Get the current index.
-  __ cmpp(rax, Operand(rsp, 1 * kPointerSize));  // Compare to the array length.
-  __ j(above_equal, loop_statement.break_label());
-
-  // Get the current entry of the array into register rbx.
-  __ movp(rbx, Operand(rsp, 2 * kPointerSize));
-  SmiIndex index = masm()->SmiToIndex(rax, rax, kPointerSizeLog2);
-  __ movp(rbx, FieldOperand(rbx,
-                            index.reg,
-                            index.scale,
-                            FixedArray::kHeaderSize));
-
-  // Get the expected map from the stack or a smi in the
-  // permanent slow case into register rdx.
-  __ movp(rdx, Operand(rsp, 3 * kPointerSize));
-
-  // Check if the expected map still matches that of the enumerable.
-  // If not, we may have to filter the key.
-  Label update_each;
-  __ movp(rcx, Operand(rsp, 4 * kPointerSize));
-  __ cmpp(rdx, FieldOperand(rcx, HeapObject::kMapOffset));
-  __ j(equal, &update_each, Label::kNear);
-
-  // For proxies, no filtering is done.
-  // TODO(rossberg): What if only a prototype is a proxy? Not specified yet.
-  __ Cmp(rdx, Smi::FromInt(0));
-  __ j(equal, &update_each, Label::kNear);
-
-  // Convert the entry to a string or null if it isn't a property
-  // anymore. If the property has been removed while iterating, we
-  // just skip it.
-  __ Push(rcx);  // Enumerable.
-  __ Push(rbx);  // Current entry.
-  __ CallRuntime(Runtime::kForInFilter, 2);
-  PrepareForBailoutForId(stmt->FilterId(), TOS_REG);
-  __ CompareRoot(rax, Heap::kUndefinedValueRootIndex);
-  __ j(equal, loop_statement.continue_label());
-  __ movp(rbx, rax);
-
-  // Update the 'each' property or variable from the possibly filtered
-  // entry in register rbx.
-  __ bind(&update_each);
-  __ movp(result_register(), rbx);
-  // Perform the assignment as if via '='.
-  { EffectContext context(this);
-    EmitAssignment(stmt->each(), stmt->EachFeedbackSlot());
-    PrepareForBailoutForId(stmt->AssignmentId(), NO_REGISTERS);
-  }
-
-  // Generate code for the body of the loop.
-  Visit(stmt->body());
-
-  // Generate code for going to the next element by incrementing the
-  // index (smi) stored on top of the stack.
-  __ bind(loop_statement.continue_label());
-  __ SmiAddConstant(Operand(rsp, 0 * kPointerSize), Smi::FromInt(1));
-
-  EmitBackEdgeBookkeeping(stmt, &loop);
-  __ jmp(&loop);
-
-  // Remove the pointers stored on the stack.
-  __ bind(loop_statement.break_label());
-  __ addp(rsp, Immediate(5 * kPointerSize));
-
-  // Exit and decrement the loop depth.
-  PrepareForBailoutForId(stmt->ExitId(), NO_REGISTERS);
-  __ bind(&exit);
-  decrement_loop_depth();
-}
-
-
-void FullCodeGenerator::EmitNewClosure(Handle<SharedFunctionInfo> info,
-                                       bool pretenure) {
-  // Use the fast case closure allocation code that allocates in new
-  // space for nested functions that don't need literals cloning. If
-  // we're running with the --always-opt or the --prepare-always-opt
-  // flag, we need to use the runtime function so that the new function
-  // we are creating here gets a chance to have its code optimized and
-  // doesn't just get a copy of the existing unoptimized code.
-  if (!FLAG_always_opt &&
-      !FLAG_prepare_always_opt &&
-      !pretenure &&
-      scope()->is_function_scope() &&
-      info->num_literals() == 0) {
-    FastNewClosureStub stub(isolate(), info->language_mode(), info->kind());
-    __ Move(rbx, info);
-    __ CallStub(&stub);
-  } else {
-    __ Push(rsi);
-    __ Push(info);
-    __ Push(pretenure
-            ? isolate()->factory()->true_value()
-            : isolate()->factory()->false_value());
-    __ CallRuntime(Runtime::kNewClosure, 3);
-  }
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitSetHomeObjectIfNeeded(Expression* initializer,
-                                                  int offset,
-                                                  FeedbackVectorICSlot slot) {
-  if (NeedsHomeObject(initializer)) {
-    __ movp(StoreDescriptor::ReceiverRegister(), Operand(rsp, 0));
-    __ Move(StoreDescriptor::NameRegister(),
-            isolate()->factory()->home_object_symbol());
-    __ movp(StoreDescriptor::ValueRegister(),
-            Operand(rsp, offset * kPointerSize));
-    if (FLAG_vector_stores) EmitLoadStoreICSlot(slot);
-    CallStoreIC();
-  }
-}
-
-
-void FullCodeGenerator::EmitLoadGlobalCheckExtensions(VariableProxy* proxy,
-                                                      TypeofMode typeof_mode,
-                                                      Label* slow) {
-  Register context = rsi;
-  Register temp = rdx;
-
-  Scope* s = scope();
-  while (s != NULL) {
-    if (s->num_heap_slots() > 0) {
-      if (s->calls_sloppy_eval()) {
-        // Check that extension is NULL.
-        __ cmpp(ContextOperand(context, Context::EXTENSION_INDEX),
-                Immediate(0));
-        __ j(not_equal, slow);
-      }
-      // Load next context in chain.
-      __ movp(temp, ContextOperand(context, Context::PREVIOUS_INDEX));
-      // Walk the rest of the chain without clobbering rsi.
-      context = temp;
-    }
-    // If no outer scope calls eval, we do not need to check more
-    // context extensions.  If we have reached an eval scope, we check
-    // all extensions from this point.
-    if (!s->outer_scope_calls_sloppy_eval() || s->is_eval_scope()) break;
-    s = s->outer_scope();
-  }
-
-  if (s != NULL && s->is_eval_scope()) {
-    // Loop up the context chain.  There is no frame effect so it is
-    // safe to use raw labels here.
-    Label next, fast;
-    if (!context.is(temp)) {
-      __ movp(temp, context);
-    }
-    // Load map for comparison into register, outside loop.
-    __ LoadRoot(kScratchRegister, Heap::kNativeContextMapRootIndex);
-    __ bind(&next);
-    // Terminate at native context.
-    __ cmpp(kScratchRegister, FieldOperand(temp, HeapObject::kMapOffset));
-    __ j(equal, &fast, Label::kNear);
-    // Check that extension is NULL.
-    __ cmpp(ContextOperand(temp, Context::EXTENSION_INDEX), Immediate(0));
-    __ j(not_equal, slow);
-    // Load next context in chain.
-    __ movp(temp, ContextOperand(temp, Context::PREVIOUS_INDEX));
-    __ jmp(&next);
-    __ bind(&fast);
-  }
-
-  // All extension objects were empty and it is safe to use a normal global
-  // load machinery.
-  EmitGlobalVariableLoad(proxy, typeof_mode);
-}
-
-
-MemOperand FullCodeGenerator::ContextSlotOperandCheckExtensions(Variable* var,
-                                                                Label* slow) {
-  DCHECK(var->IsContextSlot());
-  Register context = rsi;
-  Register temp = rbx;
-
-  for (Scope* s = scope(); s != var->scope(); s = s->outer_scope()) {
-    if (s->num_heap_slots() > 0) {
-      if (s->calls_sloppy_eval()) {
-        // Check that extension is NULL.
-        __ cmpp(ContextOperand(context, Context::EXTENSION_INDEX),
-                Immediate(0));
-        __ j(not_equal, slow);
-      }
-      __ movp(temp, ContextOperand(context, Context::PREVIOUS_INDEX));
-      // Walk the rest of the chain without clobbering rsi.
-      context = temp;
-    }
-  }
-  // Check that last extension is NULL.
-  __ cmpp(ContextOperand(context, Context::EXTENSION_INDEX), Immediate(0));
-  __ j(not_equal, slow);
-
-  // This function is used only for loads, not stores, so it's safe to
-  // return an rsi-based operand (the write barrier cannot be allowed to
-  // destroy the rsi register).
-  return ContextOperand(context, var->index());
-}
-
-
-void FullCodeGenerator::EmitDynamicLookupFastCase(VariableProxy* proxy,
-                                                  TypeofMode typeof_mode,
-                                                  Label* slow, Label* done) {
-  // Generate fast-case code for variables that might be shadowed by
-  // eval-introduced variables.  Eval is used a lot without
-  // introducing variables.  In those cases, we do not want to
-  // perform a runtime call for all variables in the scope
-  // containing the eval.
-  Variable* var = proxy->var();
-  if (var->mode() == DYNAMIC_GLOBAL) {
-    EmitLoadGlobalCheckExtensions(proxy, typeof_mode, slow);
-    __ jmp(done);
-  } else if (var->mode() == DYNAMIC_LOCAL) {
-    Variable* local = var->local_if_not_shadowed();
-    __ movp(rax, ContextSlotOperandCheckExtensions(local, slow));
-    if (local->mode() == LET || local->mode() == CONST ||
-        local->mode() == CONST_LEGACY) {
-      __ CompareRoot(rax, Heap::kTheHoleValueRootIndex);
-      __ j(not_equal, done);
-      if (local->mode() == CONST_LEGACY) {
-        __ LoadRoot(rax, Heap::kUndefinedValueRootIndex);
-      } else {  // LET || CONST
-        __ Push(var->name());
-        __ CallRuntime(Runtime::kThrowReferenceError, 1);
-      }
-    }
-    __ jmp(done);
-  }
-}
-
-
-void FullCodeGenerator::EmitGlobalVariableLoad(VariableProxy* proxy,
-                                               TypeofMode typeof_mode) {
-  Variable* var = proxy->var();
-  DCHECK(var->IsUnallocatedOrGlobalSlot() ||
-         (var->IsLookupSlot() && var->mode() == DYNAMIC_GLOBAL));
-  if (var->IsGlobalSlot()) {
-    DCHECK(var->index() > 0);
-    DCHECK(var->IsStaticGlobalObjectProperty());
-    // Each var occupies two slots in the context: for reads and writes.
-    int slot_index = var->index();
-    int depth = scope()->ContextChainLength(var->scope());
-    __ Move(LoadGlobalViaContextDescriptor::DepthRegister(),
-            Smi::FromInt(depth));
-    __ Move(LoadGlobalViaContextDescriptor::SlotRegister(),
-            Smi::FromInt(slot_index));
-    __ Move(LoadGlobalViaContextDescriptor::NameRegister(), var->name());
-    LoadGlobalViaContextStub stub(isolate(), depth);
-    __ CallStub(&stub);
-
-  } else {
-    __ Move(LoadDescriptor::NameRegister(), var->name());
-    __ movp(LoadDescriptor::ReceiverRegister(), GlobalObjectOperand());
-    __ Move(LoadDescriptor::SlotRegister(),
-            SmiFromSlot(proxy->VariableFeedbackSlot()));
-    CallLoadIC(typeof_mode);
-  }
-}
-
-
-void FullCodeGenerator::EmitVariableLoad(VariableProxy* proxy,
-                                         TypeofMode typeof_mode) {
-  // Record position before possible IC call.
-  SetExpressionPosition(proxy);
-  PrepareForBailoutForId(proxy->BeforeId(), NO_REGISTERS);
-  Variable* var = proxy->var();
-
-  // Three cases: global variables, lookup variables, and all other types of
-  // variables.
-  switch (var->location()) {
-    case VariableLocation::GLOBAL:
-    case VariableLocation::UNALLOCATED: {
-      Comment cmnt(masm_, "[ Global variable");
-      EmitGlobalVariableLoad(proxy, typeof_mode);
-      context()->Plug(rax);
-      break;
-    }
-
-    case VariableLocation::PARAMETER:
-    case VariableLocation::LOCAL:
-    case VariableLocation::CONTEXT: {
-      DCHECK_EQ(NOT_INSIDE_TYPEOF, typeof_mode);
-      Comment cmnt(masm_, var->IsContextSlot() ? "[ Context slot"
-                                               : "[ Stack slot");
-      if (var->binding_needs_init()) {
-        // var->scope() may be NULL when the proxy is located in eval code and
-        // refers to a potential outside binding. Currently those bindings are
-        // always looked up dynamically, i.e. in that case
-        //     var->location() == LOOKUP.
-        // always holds.
-        DCHECK(var->scope() != NULL);
-
-        // Check if the binding really needs an initialization check. The check
-        // can be skipped in the following situation: we have a LET or CONST
-        // binding in harmony mode, both the Variable and the VariableProxy have
-        // the same declaration scope (i.e. they are both in global code, in the
-        // same function or in the same eval code) and the VariableProxy is in
-        // the source physically located after the initializer of the variable.
-        //
-        // We cannot skip any initialization checks for CONST in non-harmony
-        // mode because const variables may be declared but never initialized:
-        //   if (false) { const x; }; var y = x;
-        //
-        // The condition on the declaration scopes is a conservative check for
-        // nested functions that access a binding and are called before the
-        // binding is initialized:
-        //   function() { f(); let x = 1; function f() { x = 2; } }
-        //
-        bool skip_init_check;
-        if (var->scope()->DeclarationScope() != scope()->DeclarationScope()) {
-          skip_init_check = false;
-        } else if (var->is_this()) {
-          CHECK(info_->function() != nullptr &&
-                (info_->function()->kind() & kSubclassConstructor) != 0);
-          // TODO(dslomov): implement 'this' hole check elimination.
-          skip_init_check = false;
-        } else {
-          // Check that we always have valid source position.
-          DCHECK(var->initializer_position() != RelocInfo::kNoPosition);
-          DCHECK(proxy->position() != RelocInfo::kNoPosition);
-          skip_init_check = var->mode() != CONST_LEGACY &&
-              var->initializer_position() < proxy->position();
-        }
-
-        if (!skip_init_check) {
-          // Let and const need a read barrier.
-          Label done;
-          GetVar(rax, var);
-          __ CompareRoot(rax, Heap::kTheHoleValueRootIndex);
-          __ j(not_equal, &done, Label::kNear);
-          if (var->mode() == LET || var->mode() == CONST) {
-            // Throw a reference error when using an uninitialized let/const
-            // binding in harmony mode.
-            __ Push(var->name());
-            __ CallRuntime(Runtime::kThrowReferenceError, 1);
-          } else {
-            // Uninitalized const bindings outside of harmony mode are unholed.
-            DCHECK(var->mode() == CONST_LEGACY);
-            __ LoadRoot(rax, Heap::kUndefinedValueRootIndex);
-          }
-          __ bind(&done);
-          context()->Plug(rax);
-          break;
-        }
-      }
-      context()->Plug(var);
-      break;
-    }
-
-    case VariableLocation::LOOKUP: {
-      Comment cmnt(masm_, "[ Lookup slot");
-      Label done, slow;
-      // Generate code for loading from variables potentially shadowed
-      // by eval-introduced variables.
-      EmitDynamicLookupFastCase(proxy, typeof_mode, &slow, &done);
-      __ bind(&slow);
-      __ Push(rsi);  // Context.
-      __ Push(var->name());
-      Runtime::FunctionId function_id =
-          typeof_mode == NOT_INSIDE_TYPEOF
-              ? Runtime::kLoadLookupSlot
-              : Runtime::kLoadLookupSlotNoReferenceError;
-      __ CallRuntime(function_id, 2);
-      __ bind(&done);
-      context()->Plug(rax);
-      break;
-    }
-  }
-}
-
-
-void FullCodeGenerator::VisitRegExpLiteral(RegExpLiteral* expr) {
-  Comment cmnt(masm_, "[ RegExpLiteral");
-  Label materialized;
-  // Registers will be used as follows:
-  // rdi = JS function.
-  // rcx = literals array.
-  // rbx = regexp literal.
-  // rax = regexp literal clone.
-  __ movp(rdi, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
-  __ movp(rcx, FieldOperand(rdi, JSFunction::kLiteralsOffset));
-  int literal_offset =
-      FixedArray::kHeaderSize + expr->literal_index() * kPointerSize;
-  __ movp(rbx, FieldOperand(rcx, literal_offset));
-  __ CompareRoot(rbx, Heap::kUndefinedValueRootIndex);
-  __ j(not_equal, &materialized, Label::kNear);
-
-  // Create regexp literal using runtime function
-  // Result will be in rax.
-  __ Push(rcx);
-  __ Push(Smi::FromInt(expr->literal_index()));
-  __ Push(expr->pattern());
-  __ Push(expr->flags());
-  __ CallRuntime(Runtime::kMaterializeRegExpLiteral, 4);
-  __ movp(rbx, rax);
-
-  __ bind(&materialized);
-  int size = JSRegExp::kSize + JSRegExp::kInObjectFieldCount * kPointerSize;
-  Label allocated, runtime_allocate;
-  __ Allocate(size, rax, rcx, rdx, &runtime_allocate, TAG_OBJECT);
-  __ jmp(&allocated);
-
-  __ bind(&runtime_allocate);
-  __ Push(rbx);
-  __ Push(Smi::FromInt(size));
-  __ CallRuntime(Runtime::kAllocateInNewSpace, 1);
-  __ Pop(rbx);
-
-  __ bind(&allocated);
-  // Copy the content into the newly allocated memory.
-  // (Unroll copy loop once for better throughput).
-  for (int i = 0; i < size - kPointerSize; i += 2 * kPointerSize) {
-    __ movp(rdx, FieldOperand(rbx, i));
-    __ movp(rcx, FieldOperand(rbx, i + kPointerSize));
-    __ movp(FieldOperand(rax, i), rdx);
-    __ movp(FieldOperand(rax, i + kPointerSize), rcx);
-  }
-  if ((size % (2 * kPointerSize)) != 0) {
-    __ movp(rdx, FieldOperand(rbx, size - kPointerSize));
-    __ movp(FieldOperand(rax, size - kPointerSize), rdx);
-  }
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitAccessor(Expression* expression) {
-  if (expression == NULL) {
-    __ PushRoot(Heap::kNullValueRootIndex);
-  } else {
-    VisitForStackValue(expression);
-  }
-}
-
-
-void FullCodeGenerator::VisitObjectLiteral(ObjectLiteral* expr) {
-  Comment cmnt(masm_, "[ ObjectLiteral");
-
-  Handle<FixedArray> constant_properties = expr->constant_properties();
-  int flags = expr->ComputeFlags();
-  if (MustCreateObjectLiteralWithRuntime(expr)) {
-    __ movp(rdi, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
-    __ Push(FieldOperand(rdi, JSFunction::kLiteralsOffset));
-    __ Push(Smi::FromInt(expr->literal_index()));
-    __ Push(constant_properties);
-    __ Push(Smi::FromInt(flags));
-    __ CallRuntime(Runtime::kCreateObjectLiteral, 4);
-  } else {
-    __ movp(rdi, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
-    __ movp(rax, FieldOperand(rdi, JSFunction::kLiteralsOffset));
-    __ Move(rbx, Smi::FromInt(expr->literal_index()));
-    __ Move(rcx, constant_properties);
-    __ Move(rdx, Smi::FromInt(flags));
-    FastCloneShallowObjectStub stub(isolate(), expr->properties_count());
-    __ CallStub(&stub);
-  }
-  PrepareForBailoutForId(expr->CreateLiteralId(), TOS_REG);
-
-  // If result_saved is true the result is on top of the stack.  If
-  // result_saved is false the result is in rax.
-  bool result_saved = false;
-
-  AccessorTable accessor_table(zone());
-  int property_index = 0;
-  // store_slot_index points to the vector IC slot for the next store IC used.
-  // ObjectLiteral::ComputeFeedbackRequirements controls the allocation of slots
-  // and must be updated if the number of store ICs emitted here changes.
-  int store_slot_index = 0;
-  for (; property_index < expr->properties()->length(); property_index++) {
-    ObjectLiteral::Property* property = expr->properties()->at(property_index);
-    if (property->is_computed_name()) break;
-    if (property->IsCompileTimeValue()) continue;
-
-    Literal* key = property->key()->AsLiteral();
-    Expression* value = property->value();
-    if (!result_saved) {
-      __ Push(rax);  // Save result on the stack
-      result_saved = true;
-    }
-    switch (property->kind()) {
-      case ObjectLiteral::Property::CONSTANT:
-        UNREACHABLE();
-      case ObjectLiteral::Property::MATERIALIZED_LITERAL:
-        DCHECK(!CompileTimeValue::IsCompileTimeValue(value));
-        // Fall through.
-      case ObjectLiteral::Property::COMPUTED:
-        // It is safe to use [[Put]] here because the boilerplate already
-        // contains computed properties with an uninitialized value.
-        if (key->value()->IsInternalizedString()) {
-          if (property->emit_store()) {
-            VisitForAccumulatorValue(value);
-            DCHECK(StoreDescriptor::ValueRegister().is(rax));
-            __ Move(StoreDescriptor::NameRegister(), key->value());
-            __ movp(StoreDescriptor::ReceiverRegister(), Operand(rsp, 0));
-            if (FLAG_vector_stores) {
-              EmitLoadStoreICSlot(expr->GetNthSlot(store_slot_index++));
-              CallStoreIC();
-            } else {
-              CallStoreIC(key->LiteralFeedbackId());
-            }
-            PrepareForBailoutForId(key->id(), NO_REGISTERS);
-
-            if (NeedsHomeObject(value)) {
-              __ movp(StoreDescriptor::ReceiverRegister(), rax);
-              __ Move(StoreDescriptor::NameRegister(),
-                      isolate()->factory()->home_object_symbol());
-              __ movp(StoreDescriptor::ValueRegister(), Operand(rsp, 0));
-              if (FLAG_vector_stores) {
-                EmitLoadStoreICSlot(expr->GetNthSlot(store_slot_index++));
-              }
-              CallStoreIC();
-            }
-          } else {
-            VisitForEffect(value);
-          }
-          break;
-        }
-        __ Push(Operand(rsp, 0));  // Duplicate receiver.
-        VisitForStackValue(key);
-        VisitForStackValue(value);
-        if (property->emit_store()) {
-          EmitSetHomeObjectIfNeeded(
-              value, 2, expr->SlotForHomeObject(value, &store_slot_index));
-          __ Push(Smi::FromInt(SLOPPY));  // Language mode
-          __ CallRuntime(Runtime::kSetProperty, 4);
-        } else {
-          __ Drop(3);
-        }
-        break;
-      case ObjectLiteral::Property::PROTOTYPE:
-        __ Push(Operand(rsp, 0));  // Duplicate receiver.
-        VisitForStackValue(value);
-        DCHECK(property->emit_store());
-        __ CallRuntime(Runtime::kInternalSetPrototype, 2);
-        break;
-      case ObjectLiteral::Property::GETTER:
-        if (property->emit_store()) {
-          accessor_table.lookup(key)->second->getter = value;
-        }
-        break;
-      case ObjectLiteral::Property::SETTER:
-        if (property->emit_store()) {
-          accessor_table.lookup(key)->second->setter = value;
-        }
-        break;
-    }
-  }
-
-  // Emit code to define accessors, using only a single call to the runtime for
-  // each pair of corresponding getters and setters.
-  for (AccessorTable::Iterator it = accessor_table.begin();
-       it != accessor_table.end();
-       ++it) {
-    __ Push(Operand(rsp, 0));  // Duplicate receiver.
-    VisitForStackValue(it->first);
-    EmitAccessor(it->second->getter);
-    EmitSetHomeObjectIfNeeded(
-        it->second->getter, 2,
-        expr->SlotForHomeObject(it->second->getter, &store_slot_index));
-    EmitAccessor(it->second->setter);
-    EmitSetHomeObjectIfNeeded(
-        it->second->setter, 3,
-        expr->SlotForHomeObject(it->second->setter, &store_slot_index));
-    __ Push(Smi::FromInt(NONE));
-    __ CallRuntime(Runtime::kDefineAccessorPropertyUnchecked, 5);
-  }
-
-  // Object literals have two parts. The "static" part on the left contains no
-  // computed property names, and so we can compute its map ahead of time; see
-  // runtime.cc::CreateObjectLiteralBoilerplate. The second "dynamic" part
-  // starts with the first computed property name, and continues with all
-  // properties to its right.  All the code from above initializes the static
-  // component of the object literal, and arranges for the map of the result to
-  // reflect the static order in which the keys appear. For the dynamic
-  // properties, we compile them into a series of "SetOwnProperty" runtime
-  // calls. This will preserve insertion order.
-  for (; property_index < expr->properties()->length(); property_index++) {
-    ObjectLiteral::Property* property = expr->properties()->at(property_index);
-
-    Expression* value = property->value();
-    if (!result_saved) {
-      __ Push(rax);  // Save result on the stack
-      result_saved = true;
-    }
-
-    __ Push(Operand(rsp, 0));  // Duplicate receiver.
-
-    if (property->kind() == ObjectLiteral::Property::PROTOTYPE) {
-      DCHECK(!property->is_computed_name());
-      VisitForStackValue(value);
-      DCHECK(property->emit_store());
-      __ CallRuntime(Runtime::kInternalSetPrototype, 2);
-    } else {
-      EmitPropertyKey(property, expr->GetIdForProperty(property_index));
-      VisitForStackValue(value);
-      EmitSetHomeObjectIfNeeded(
-          value, 2, expr->SlotForHomeObject(value, &store_slot_index));
-
-      switch (property->kind()) {
-        case ObjectLiteral::Property::CONSTANT:
-        case ObjectLiteral::Property::MATERIALIZED_LITERAL:
-        case ObjectLiteral::Property::COMPUTED:
-          if (property->emit_store()) {
-            __ Push(Smi::FromInt(NONE));
-            __ CallRuntime(Runtime::kDefineDataPropertyUnchecked, 4);
-          } else {
-            __ Drop(3);
-          }
-          break;
-
-        case ObjectLiteral::Property::PROTOTYPE:
-          UNREACHABLE();
-          break;
-
-        case ObjectLiteral::Property::GETTER:
-          __ Push(Smi::FromInt(NONE));
-          __ CallRuntime(Runtime::kDefineGetterPropertyUnchecked, 4);
-          break;
-
-        case ObjectLiteral::Property::SETTER:
-          __ Push(Smi::FromInt(NONE));
-          __ CallRuntime(Runtime::kDefineSetterPropertyUnchecked, 4);
-          break;
-      }
-    }
-  }
-
-  if (expr->has_function()) {
-    DCHECK(result_saved);
-    __ Push(Operand(rsp, 0));
-    __ CallRuntime(Runtime::kToFastProperties, 1);
-  }
-
-  if (result_saved) {
-    context()->PlugTOS();
-  } else {
-    context()->Plug(rax);
-  }
-
-  // Verify that compilation exactly consumed the number of store ic slots that
-  // the ObjectLiteral node had to offer.
-  DCHECK(!FLAG_vector_stores || store_slot_index == expr->slot_count());
-}
-
-
-void FullCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) {
-  Comment cmnt(masm_, "[ ArrayLiteral");
-
-  expr->BuildConstantElements(isolate());
-  Handle<FixedArray> constant_elements = expr->constant_elements();
-  bool has_constant_fast_elements =
-      IsFastObjectElementsKind(expr->constant_elements_kind());
-
-  AllocationSiteMode allocation_site_mode = TRACK_ALLOCATION_SITE;
-  if (has_constant_fast_elements && !FLAG_allocation_site_pretenuring) {
-    // If the only customer of allocation sites is transitioning, then
-    // we can turn it off if we don't have anywhere else to transition to.
-    allocation_site_mode = DONT_TRACK_ALLOCATION_SITE;
-  }
-
-  if (MustCreateArrayLiteralWithRuntime(expr)) {
-    __ movp(rbx, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
-    __ Push(FieldOperand(rbx, JSFunction::kLiteralsOffset));
-    __ Push(Smi::FromInt(expr->literal_index()));
-    __ Push(constant_elements);
-    __ Push(Smi::FromInt(expr->ComputeFlags()));
-    __ CallRuntime(Runtime::kCreateArrayLiteral, 4);
-  } else {
-    __ movp(rbx, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
-    __ movp(rax, FieldOperand(rbx, JSFunction::kLiteralsOffset));
-    __ Move(rbx, Smi::FromInt(expr->literal_index()));
-    __ Move(rcx, constant_elements);
-    FastCloneShallowArrayStub stub(isolate(), allocation_site_mode);
-    __ CallStub(&stub);
-  }
-  PrepareForBailoutForId(expr->CreateLiteralId(), TOS_REG);
-
-  bool result_saved = false;  // Is the result saved to the stack?
-  ZoneList<Expression*>* subexprs = expr->values();
-  int length = subexprs->length();
-
-  // Emit code to evaluate all the non-constant subexpressions and to store
-  // them into the newly cloned array.
-  int array_index = 0;
-  for (; array_index < length; array_index++) {
-    Expression* subexpr = subexprs->at(array_index);
-    if (subexpr->IsSpread()) break;
-
-    // If the subexpression is a literal or a simple materialized literal it
-    // is already set in the cloned array.
-    if (CompileTimeValue::IsCompileTimeValue(subexpr)) continue;
-
-    if (!result_saved) {
-      __ Push(rax);  // array literal
-      __ Push(Smi::FromInt(expr->literal_index()));
-      result_saved = true;
-    }
-    VisitForAccumulatorValue(subexpr);
-
-    if (has_constant_fast_elements) {
-      // Fast-case array literal with ElementsKind of FAST_*_ELEMENTS, they
-      // cannot transition and don't need to call the runtime stub.
-      int offset = FixedArray::kHeaderSize + (array_index * kPointerSize);
-      __ movp(rbx, Operand(rsp, kPointerSize));  // Copy of array literal.
-      __ movp(rbx, FieldOperand(rbx, JSObject::kElementsOffset));
-      // Store the subexpression value in the array's elements.
-      __ movp(FieldOperand(rbx, offset), result_register());
-      // Update the write barrier for the array store.
-      __ RecordWriteField(rbx, offset, result_register(), rcx,
-                          kDontSaveFPRegs,
-                          EMIT_REMEMBERED_SET,
-                          INLINE_SMI_CHECK);
-    } else {
-      // Store the subexpression value in the array's elements.
-      __ Move(rcx, Smi::FromInt(array_index));
-      StoreArrayLiteralElementStub stub(isolate());
-      __ CallStub(&stub);
-    }
-
-    PrepareForBailoutForId(expr->GetIdForElement(array_index), NO_REGISTERS);
-  }
-
-  // In case the array literal contains spread expressions it has two parts. The
-  // first part is  the "static" array which has a literal index is  handled
-  // above. The second part is the part after the first spread expression
-  // (inclusive) and these elements gets appended to the array. Note that the
-  // number elements an iterable produces is unknown ahead of time.
-  if (array_index < length && result_saved) {
-    __ Drop(1);  // literal index
-    __ Pop(rax);
-    result_saved = false;
-  }
-  for (; array_index < length; array_index++) {
-    Expression* subexpr = subexprs->at(array_index);
-
-    __ Push(rax);
-    if (subexpr->IsSpread()) {
-      VisitForStackValue(subexpr->AsSpread()->expression());
-      __ InvokeBuiltin(Builtins::CONCAT_ITERABLE_TO_ARRAY, CALL_FUNCTION);
-    } else {
-      VisitForStackValue(subexpr);
-      __ CallRuntime(Runtime::kAppendElement, 2);
-    }
-
-    PrepareForBailoutForId(expr->GetIdForElement(array_index), NO_REGISTERS);
-  }
-
-  if (result_saved) {
-    __ Drop(1);  // literal index
-    context()->PlugTOS();
-  } else {
-    context()->Plug(rax);
-  }
-}
-
-
-void FullCodeGenerator::VisitAssignment(Assignment* expr) {
-  DCHECK(expr->target()->IsValidReferenceExpressionOrThis());
-
-  Comment cmnt(masm_, "[ Assignment");
-  SetExpressionPosition(expr, INSERT_BREAK);
-
-  Property* property = expr->target()->AsProperty();
-  LhsKind assign_type = Property::GetAssignType(property);
-
-  // Evaluate LHS expression.
-  switch (assign_type) {
-    case VARIABLE:
-      // Nothing to do here.
-      break;
-    case NAMED_PROPERTY:
-      if (expr->is_compound()) {
-        // We need the receiver both on the stack and in the register.
-        VisitForStackValue(property->obj());
-        __ movp(LoadDescriptor::ReceiverRegister(), Operand(rsp, 0));
-      } else {
-        VisitForStackValue(property->obj());
-      }
-      break;
-    case NAMED_SUPER_PROPERTY:
-      VisitForStackValue(
-          property->obj()->AsSuperPropertyReference()->this_var());
-      VisitForAccumulatorValue(
-          property->obj()->AsSuperPropertyReference()->home_object());
-      __ Push(result_register());
-      if (expr->is_compound()) {
-        __ Push(MemOperand(rsp, kPointerSize));
-        __ Push(result_register());
-      }
-      break;
-    case KEYED_SUPER_PROPERTY:
-      VisitForStackValue(
-          property->obj()->AsSuperPropertyReference()->this_var());
-      VisitForStackValue(
-          property->obj()->AsSuperPropertyReference()->home_object());
-      VisitForAccumulatorValue(property->key());
-      __ Push(result_register());
-      if (expr->is_compound()) {
-        __ Push(MemOperand(rsp, 2 * kPointerSize));
-        __ Push(MemOperand(rsp, 2 * kPointerSize));
-        __ Push(result_register());
-      }
-      break;
-    case KEYED_PROPERTY: {
-      if (expr->is_compound()) {
-        VisitForStackValue(property->obj());
-        VisitForStackValue(property->key());
-        __ movp(LoadDescriptor::ReceiverRegister(), Operand(rsp, kPointerSize));
-        __ movp(LoadDescriptor::NameRegister(), Operand(rsp, 0));
-      } else {
-        VisitForStackValue(property->obj());
-        VisitForStackValue(property->key());
-      }
-      break;
-    }
-  }
-
-  // For compound assignments we need another deoptimization point after the
-  // variable/property load.
-  if (expr->is_compound()) {
-    { AccumulatorValueContext context(this);
-      switch (assign_type) {
-        case VARIABLE:
-          EmitVariableLoad(expr->target()->AsVariableProxy());
-          PrepareForBailout(expr->target(), TOS_REG);
-          break;
-        case NAMED_PROPERTY:
-          EmitNamedPropertyLoad(property);
-          PrepareForBailoutForId(property->LoadId(), TOS_REG);
-          break;
-        case NAMED_SUPER_PROPERTY:
-          EmitNamedSuperPropertyLoad(property);
-          PrepareForBailoutForId(property->LoadId(), TOS_REG);
-          break;
-        case KEYED_SUPER_PROPERTY:
-          EmitKeyedSuperPropertyLoad(property);
-          PrepareForBailoutForId(property->LoadId(), TOS_REG);
-          break;
-        case KEYED_PROPERTY:
-          EmitKeyedPropertyLoad(property);
-          PrepareForBailoutForId(property->LoadId(), TOS_REG);
-          break;
-      }
-    }
-
-    Token::Value op = expr->binary_op();
-    __ Push(rax);  // Left operand goes on the stack.
-    VisitForAccumulatorValue(expr->value());
-
-    AccumulatorValueContext context(this);
-    if (ShouldInlineSmiCase(op)) {
-      EmitInlineSmiBinaryOp(expr->binary_operation(),
-                            op,
-                            expr->target(),
-                            expr->value());
-    } else {
-      EmitBinaryOp(expr->binary_operation(), op);
-    }
-    // Deoptimization point in case the binary operation may have side effects.
-    PrepareForBailout(expr->binary_operation(), TOS_REG);
-  } else {
-    VisitForAccumulatorValue(expr->value());
-  }
-
-  SetExpressionPosition(expr);
-
-  // Store the value.
-  switch (assign_type) {
-    case VARIABLE:
-      EmitVariableAssignment(expr->target()->AsVariableProxy()->var(),
-                             expr->op(), expr->AssignmentSlot());
-      PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
-      context()->Plug(rax);
-      break;
-    case NAMED_PROPERTY:
-      EmitNamedPropertyAssignment(expr);
-      break;
-    case NAMED_SUPER_PROPERTY:
-      EmitNamedSuperPropertyStore(property);
-      context()->Plug(rax);
-      break;
-    case KEYED_SUPER_PROPERTY:
-      EmitKeyedSuperPropertyStore(property);
-      context()->Plug(rax);
-      break;
-    case KEYED_PROPERTY:
-      EmitKeyedPropertyAssignment(expr);
-      break;
-  }
-}
-
-
-void FullCodeGenerator::VisitYield(Yield* expr) {
-  Comment cmnt(masm_, "[ Yield");
-  SetExpressionPosition(expr);
-
-  // Evaluate yielded value first; the initial iterator definition depends on
-  // this.  It stays on the stack while we update the iterator.
-  VisitForStackValue(expr->expression());
-
-  switch (expr->yield_kind()) {
-    case Yield::kSuspend:
-      // Pop value from top-of-stack slot; box result into result register.
-      EmitCreateIteratorResult(false);
-      __ Push(result_register());
-      // Fall through.
-    case Yield::kInitial: {
-      Label suspend, continuation, post_runtime, resume;
-
-      __ jmp(&suspend);
-      __ bind(&continuation);
-      __ RecordGeneratorContinuation();
-      __ jmp(&resume);
-
-      __ bind(&suspend);
-      VisitForAccumulatorValue(expr->generator_object());
-      DCHECK(continuation.pos() > 0 && Smi::IsValid(continuation.pos()));
-      __ Move(FieldOperand(rax, JSGeneratorObject::kContinuationOffset),
-              Smi::FromInt(continuation.pos()));
-      __ movp(FieldOperand(rax, JSGeneratorObject::kContextOffset), rsi);
-      __ movp(rcx, rsi);
-      __ RecordWriteField(rax, JSGeneratorObject::kContextOffset, rcx, rdx,
-                          kDontSaveFPRegs);
-      __ leap(rbx, Operand(rbp, StandardFrameConstants::kExpressionsOffset));
-      __ cmpp(rsp, rbx);
-      __ j(equal, &post_runtime);
-      __ Push(rax);  // generator object
-      __ CallRuntime(Runtime::kSuspendJSGeneratorObject, 1);
-      __ movp(context_register(),
-              Operand(rbp, StandardFrameConstants::kContextOffset));
-      __ bind(&post_runtime);
-
-      __ Pop(result_register());
-      EmitReturnSequence();
-
-      __ bind(&resume);
-      context()->Plug(result_register());
-      break;
-    }
-
-    case Yield::kFinal: {
-      VisitForAccumulatorValue(expr->generator_object());
-      __ Move(FieldOperand(result_register(),
-                           JSGeneratorObject::kContinuationOffset),
-              Smi::FromInt(JSGeneratorObject::kGeneratorClosed));
-      // Pop value from top-of-stack slot, box result into result register.
-      EmitCreateIteratorResult(true);
-      EmitUnwindBeforeReturn();
-      EmitReturnSequence();
-      break;
-    }
-
-    case Yield::kDelegating: {
-      VisitForStackValue(expr->generator_object());
-
-      // Initial stack layout is as follows:
-      // [sp + 1 * kPointerSize] iter
-      // [sp + 0 * kPointerSize] g
-
-      Label l_catch, l_try, l_suspend, l_continuation, l_resume;
-      Label l_next, l_call, l_loop;
-      Register load_receiver = LoadDescriptor::ReceiverRegister();
-      Register load_name = LoadDescriptor::NameRegister();
-
-      // Initial send value is undefined.
-      __ LoadRoot(rax, Heap::kUndefinedValueRootIndex);
-      __ jmp(&l_next);
-
-      // catch (e) { receiver = iter; f = 'throw'; arg = e; goto l_call; }
-      __ bind(&l_catch);
-      __ LoadRoot(load_name, Heap::kthrow_stringRootIndex);  // "throw"
-      __ Push(load_name);
-      __ Push(Operand(rsp, 2 * kPointerSize));               // iter
-      __ Push(rax);                                          // exception
-      __ jmp(&l_call);
-
-      // try { received = %yield result }
-      // Shuffle the received result above a try handler and yield it without
-      // re-boxing.
-      __ bind(&l_try);
-      __ Pop(rax);                                       // result
-      int handler_index = NewHandlerTableEntry();
-      EnterTryBlock(handler_index, &l_catch);
-      const int try_block_size = TryCatch::kElementCount * kPointerSize;
-      __ Push(rax);                                      // result
-
-      __ jmp(&l_suspend);
-      __ bind(&l_continuation);
-      __ RecordGeneratorContinuation();
-      __ jmp(&l_resume);
-
-      __ bind(&l_suspend);
-      const int generator_object_depth = kPointerSize + try_block_size;
-      __ movp(rax, Operand(rsp, generator_object_depth));
-      __ Push(rax);                                      // g
-      __ Push(Smi::FromInt(handler_index));              // handler-index
-      DCHECK(l_continuation.pos() > 0 && Smi::IsValid(l_continuation.pos()));
-      __ Move(FieldOperand(rax, JSGeneratorObject::kContinuationOffset),
-              Smi::FromInt(l_continuation.pos()));
-      __ movp(FieldOperand(rax, JSGeneratorObject::kContextOffset), rsi);
-      __ movp(rcx, rsi);
-      __ RecordWriteField(rax, JSGeneratorObject::kContextOffset, rcx, rdx,
-                          kDontSaveFPRegs);
-      __ CallRuntime(Runtime::kSuspendJSGeneratorObject, 2);
-      __ movp(context_register(),
-              Operand(rbp, StandardFrameConstants::kContextOffset));
-      __ Pop(rax);                                       // result
-      EmitReturnSequence();
-      __ bind(&l_resume);                                // received in rax
-      ExitTryBlock(handler_index);
-
-      // receiver = iter; f = 'next'; arg = received;
-      __ bind(&l_next);
-
-      __ LoadRoot(load_name, Heap::knext_stringRootIndex);
-      __ Push(load_name);                           // "next"
-      __ Push(Operand(rsp, 2 * kPointerSize));      // iter
-      __ Push(rax);                                 // received
-
-      // result = receiver[f](arg);
-      __ bind(&l_call);
-      __ movp(load_receiver, Operand(rsp, kPointerSize));
-      __ Move(LoadDescriptor::SlotRegister(),
-              SmiFromSlot(expr->KeyedLoadFeedbackSlot()));
-      Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate(), SLOPPY).code();
-      CallIC(ic, TypeFeedbackId::None());
-      __ movp(rdi, rax);
-      __ movp(Operand(rsp, 2 * kPointerSize), rdi);
-
-      SetCallPosition(expr, 1);
-      CallFunctionStub stub(isolate(), 1, CALL_AS_METHOD);
-      __ CallStub(&stub);
-
-      __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
-      __ Drop(1);  // The function is still on the stack; drop it.
-
-      // if (!result.done) goto l_try;
-      __ bind(&l_loop);
-      __ Move(load_receiver, rax);
-      __ Push(load_receiver);                               // save result
-      __ LoadRoot(load_name, Heap::kdone_stringRootIndex);  // "done"
-      __ Move(LoadDescriptor::SlotRegister(),
-              SmiFromSlot(expr->DoneFeedbackSlot()));
-      CallLoadIC(NOT_INSIDE_TYPEOF);  // rax=result.done
-      Handle<Code> bool_ic = ToBooleanStub::GetUninitialized(isolate());
-      CallIC(bool_ic);
-      __ testp(result_register(), result_register());
-      __ j(zero, &l_try);
-
-      // result.value
-      __ Pop(load_receiver);                             // result
-      __ LoadRoot(load_name, Heap::kvalue_stringRootIndex);  // "value"
-      __ Move(LoadDescriptor::SlotRegister(),
-              SmiFromSlot(expr->ValueFeedbackSlot()));
-      CallLoadIC(NOT_INSIDE_TYPEOF);                     // result.value in rax
-      context()->DropAndPlug(2, rax);                    // drop iter and g
-      break;
-    }
-  }
-}
-
-
-void FullCodeGenerator::EmitGeneratorResume(Expression *generator,
-    Expression *value,
-    JSGeneratorObject::ResumeMode resume_mode) {
-  // The value stays in rax, and is ultimately read by the resumed generator, as
-  // if CallRuntime(Runtime::kSuspendJSGeneratorObject) returned it. Or it
-  // is read to throw the value when the resumed generator is already closed.
-  // rbx will hold the generator object until the activation has been resumed.
-  VisitForStackValue(generator);
-  VisitForAccumulatorValue(value);
-  __ Pop(rbx);
-
-  // Load suspended function and context.
-  __ movp(rsi, FieldOperand(rbx, JSGeneratorObject::kContextOffset));
-  __ movp(rdi, FieldOperand(rbx, JSGeneratorObject::kFunctionOffset));
-
-  // Push receiver.
-  __ Push(FieldOperand(rbx, JSGeneratorObject::kReceiverOffset));
-
-  // Push holes for arguments to generator function.
-  __ movp(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset));
-  __ LoadSharedFunctionInfoSpecialField(rdx, rdx,
-      SharedFunctionInfo::kFormalParameterCountOffset);
-  __ LoadRoot(rcx, Heap::kTheHoleValueRootIndex);
-  Label push_argument_holes, push_frame;
-  __ bind(&push_argument_holes);
-  __ subp(rdx, Immediate(1));
-  __ j(carry, &push_frame);
-  __ Push(rcx);
-  __ jmp(&push_argument_holes);
-
-  // Enter a new JavaScript frame, and initialize its slots as they were when
-  // the generator was suspended.
-  Label resume_frame, done;
-  __ bind(&push_frame);
-  __ call(&resume_frame);
-  __ jmp(&done);
-  __ bind(&resume_frame);
-  __ pushq(rbp);  // Caller's frame pointer.
-  __ movp(rbp, rsp);
-  __ Push(rsi);  // Callee's context.
-  __ Push(rdi);  // Callee's JS Function.
-
-  // Load the operand stack size.
-  __ movp(rdx, FieldOperand(rbx, JSGeneratorObject::kOperandStackOffset));
-  __ movp(rdx, FieldOperand(rdx, FixedArray::kLengthOffset));
-  __ SmiToInteger32(rdx, rdx);
-
-  // If we are sending a value and there is no operand stack, we can jump back
-  // in directly.
-  if (resume_mode == JSGeneratorObject::NEXT) {
-    Label slow_resume;
-    __ cmpp(rdx, Immediate(0));
-    __ j(not_zero, &slow_resume);
-    __ movp(rdx, FieldOperand(rdi, JSFunction::kCodeEntryOffset));
-    __ SmiToInteger64(rcx,
-        FieldOperand(rbx, JSGeneratorObject::kContinuationOffset));
-    __ addp(rdx, rcx);
-    __ Move(FieldOperand(rbx, JSGeneratorObject::kContinuationOffset),
-            Smi::FromInt(JSGeneratorObject::kGeneratorExecuting));
-    __ jmp(rdx);
-    __ bind(&slow_resume);
-  }
-
-  // Otherwise, we push holes for the operand stack and call the runtime to fix
-  // up the stack and the handlers.
-  Label push_operand_holes, call_resume;
-  __ bind(&push_operand_holes);
-  __ subp(rdx, Immediate(1));
-  __ j(carry, &call_resume);
-  __ Push(rcx);
-  __ jmp(&push_operand_holes);
-  __ bind(&call_resume);
-  __ Push(rbx);
-  __ Push(result_register());
-  __ Push(Smi::FromInt(resume_mode));
-  __ CallRuntime(Runtime::kResumeJSGeneratorObject, 3);
-  // Not reached: the runtime call returns elsewhere.
-  __ Abort(kGeneratorFailedToResume);
-
-  __ bind(&done);
-  context()->Plug(result_register());
-}
-
-
-void FullCodeGenerator::EmitCreateIteratorResult(bool done) {
-  Label gc_required;
-  Label allocated;
-
-  const int instance_size = 5 * kPointerSize;
-  DCHECK_EQ(isolate()->native_context()->iterator_result_map()->instance_size(),
-            instance_size);
-
-  __ Allocate(instance_size, rax, rcx, rdx, &gc_required, TAG_OBJECT);
-  __ jmp(&allocated);
-
-  __ bind(&gc_required);
-  __ Push(Smi::FromInt(instance_size));
-  __ CallRuntime(Runtime::kAllocateInNewSpace, 1);
-  __ movp(context_register(),
-          Operand(rbp, StandardFrameConstants::kContextOffset));
-
-  __ bind(&allocated);
-  __ movp(rbx, Operand(rsi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
-  __ movp(rbx, FieldOperand(rbx, GlobalObject::kNativeContextOffset));
-  __ movp(rbx, ContextOperand(rbx, Context::ITERATOR_RESULT_MAP_INDEX));
-  __ Pop(rcx);
-  __ Move(rdx, isolate()->factory()->ToBoolean(done));
-  __ movp(FieldOperand(rax, HeapObject::kMapOffset), rbx);
-  __ Move(FieldOperand(rax, JSObject::kPropertiesOffset),
-          isolate()->factory()->empty_fixed_array());
-  __ Move(FieldOperand(rax, JSObject::kElementsOffset),
-          isolate()->factory()->empty_fixed_array());
-  __ movp(FieldOperand(rax, JSGeneratorObject::kResultValuePropertyOffset),
-          rcx);
-  __ movp(FieldOperand(rax, JSGeneratorObject::kResultDonePropertyOffset),
-          rdx);
-
-  // Only the value field needs a write barrier, as the other values are in the
-  // root set.
-  __ RecordWriteField(rax, JSGeneratorObject::kResultValuePropertyOffset,
-                      rcx, rdx, kDontSaveFPRegs);
-}
-
-
-void FullCodeGenerator::EmitNamedPropertyLoad(Property* prop) {
-  SetExpressionPosition(prop);
-  Literal* key = prop->key()->AsLiteral();
-  DCHECK(!prop->IsSuperAccess());
-
-  __ Move(LoadDescriptor::NameRegister(), key->value());
-  __ Move(LoadDescriptor::SlotRegister(),
-          SmiFromSlot(prop->PropertyFeedbackSlot()));
-  CallLoadIC(NOT_INSIDE_TYPEOF, language_mode());
-}
-
-
-void FullCodeGenerator::EmitNamedSuperPropertyLoad(Property* prop) {
-  // Stack: receiver, home_object
-  SetExpressionPosition(prop);
-  Literal* key = prop->key()->AsLiteral();
-  DCHECK(!key->value()->IsSmi());
-  DCHECK(prop->IsSuperAccess());
-
-  __ Push(key->value());
-  __ Push(Smi::FromInt(language_mode()));
-  __ CallRuntime(Runtime::kLoadFromSuper, 4);
-}
-
-
-void FullCodeGenerator::EmitKeyedPropertyLoad(Property* prop) {
-  SetExpressionPosition(prop);
-  Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate(), language_mode()).code();
-  __ Move(LoadDescriptor::SlotRegister(),
-          SmiFromSlot(prop->PropertyFeedbackSlot()));
-  CallIC(ic);
-}
-
-
-void FullCodeGenerator::EmitKeyedSuperPropertyLoad(Property* prop) {
-  // Stack: receiver, home_object, key.
-  SetExpressionPosition(prop);
-  __ Push(Smi::FromInt(language_mode()));
-  __ CallRuntime(Runtime::kLoadKeyedFromSuper, 4);
-}
-
-
-void FullCodeGenerator::EmitInlineSmiBinaryOp(BinaryOperation* expr,
-                                              Token::Value op,
-                                              Expression* left,
-                                              Expression* right) {
-  // Do combined smi check of the operands. Left operand is on the
-  // stack (popped into rdx). Right operand is in rax but moved into
-  // rcx to make the shifts easier.
-  Label done, stub_call, smi_case;
-  __ Pop(rdx);
-  __ movp(rcx, rax);
-  __ orp(rax, rdx);
-  JumpPatchSite patch_site(masm_);
-  patch_site.EmitJumpIfSmi(rax, &smi_case, Label::kNear);
-
-  __ bind(&stub_call);
-  __ movp(rax, rcx);
-  Handle<Code> code =
-      CodeFactory::BinaryOpIC(isolate(), op, strength(language_mode())).code();
-  CallIC(code, expr->BinaryOperationFeedbackId());
-  patch_site.EmitPatchInfo();
-  __ jmp(&done, Label::kNear);
-
-  __ bind(&smi_case);
-  switch (op) {
-    case Token::SAR:
-      __ SmiShiftArithmeticRight(rax, rdx, rcx);
-      break;
-    case Token::SHL:
-      __ SmiShiftLeft(rax, rdx, rcx, &stub_call);
-      break;
-    case Token::SHR:
-      __ SmiShiftLogicalRight(rax, rdx, rcx, &stub_call);
-      break;
-    case Token::ADD:
-      __ SmiAdd(rax, rdx, rcx, &stub_call);
-      break;
-    case Token::SUB:
-      __ SmiSub(rax, rdx, rcx, &stub_call);
-      break;
-    case Token::MUL:
-      __ SmiMul(rax, rdx, rcx, &stub_call);
-      break;
-    case Token::BIT_OR:
-      __ SmiOr(rax, rdx, rcx);
-      break;
-    case Token::BIT_AND:
-      __ SmiAnd(rax, rdx, rcx);
-      break;
-    case Token::BIT_XOR:
-      __ SmiXor(rax, rdx, rcx);
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-
-  __ bind(&done);
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitClassDefineProperties(ClassLiteral* lit,
-                                                  int* used_store_slots) {
-  // Constructor is in rax.
-  DCHECK(lit != NULL);
-  __ Push(rax);
-
-  // No access check is needed here since the constructor is created by the
-  // class literal.
-  Register scratch = rbx;
-  __ movp(scratch, FieldOperand(rax, JSFunction::kPrototypeOrInitialMapOffset));
-  __ Push(scratch);
-
-  for (int i = 0; i < lit->properties()->length(); i++) {
-    ObjectLiteral::Property* property = lit->properties()->at(i);
-    Expression* value = property->value();
-
-    if (property->is_static()) {
-      __ Push(Operand(rsp, kPointerSize));  // constructor
-    } else {
-      __ Push(Operand(rsp, 0));  // prototype
-    }
-    EmitPropertyKey(property, lit->GetIdForProperty(i));
-
-    // The static prototype property is read only. We handle the non computed
-    // property name case in the parser. Since this is the only case where we
-    // need to check for an own read only property we special case this so we do
-    // not need to do this for every property.
-    if (property->is_static() && property->is_computed_name()) {
-      __ CallRuntime(Runtime::kThrowIfStaticPrototype, 1);
-      __ Push(rax);
-    }
-
-    VisitForStackValue(value);
-    EmitSetHomeObjectIfNeeded(value, 2,
-                              lit->SlotForHomeObject(value, used_store_slots));
-
-    switch (property->kind()) {
-      case ObjectLiteral::Property::CONSTANT:
-      case ObjectLiteral::Property::MATERIALIZED_LITERAL:
-      case ObjectLiteral::Property::PROTOTYPE:
-        UNREACHABLE();
-      case ObjectLiteral::Property::COMPUTED:
-        __ CallRuntime(Runtime::kDefineClassMethod, 3);
-        break;
-
-      case ObjectLiteral::Property::GETTER:
-        __ Push(Smi::FromInt(DONT_ENUM));
-        __ CallRuntime(Runtime::kDefineGetterPropertyUnchecked, 4);
-        break;
-
-      case ObjectLiteral::Property::SETTER:
-        __ Push(Smi::FromInt(DONT_ENUM));
-        __ CallRuntime(Runtime::kDefineSetterPropertyUnchecked, 4);
-        break;
-
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  // prototype
-  __ CallRuntime(Runtime::kToFastProperties, 1);
-
-  // constructor
-  __ CallRuntime(Runtime::kToFastProperties, 1);
-
-  if (is_strong(language_mode())) {
-    __ movp(scratch,
-            FieldOperand(rax, JSFunction::kPrototypeOrInitialMapOffset));
-    __ Push(rax);
-    __ Push(scratch);
-    // TODO(conradw): It would be more efficient to define the properties with
-    // the right attributes the first time round.
-    // Freeze the prototype.
-    __ CallRuntime(Runtime::kObjectFreeze, 1);
-    // Freeze the constructor.
-    __ CallRuntime(Runtime::kObjectFreeze, 1);
-  }
-}
-
-
-void FullCodeGenerator::EmitBinaryOp(BinaryOperation* expr, Token::Value op) {
-  __ Pop(rdx);
-  Handle<Code> code =
-      CodeFactory::BinaryOpIC(isolate(), op, strength(language_mode())).code();
-  JumpPatchSite patch_site(masm_);    // unbound, signals no inlined smi code.
-  CallIC(code, expr->BinaryOperationFeedbackId());
-  patch_site.EmitPatchInfo();
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitAssignment(Expression* expr,
-                                       FeedbackVectorICSlot slot) {
-  DCHECK(expr->IsValidReferenceExpressionOrThis());
-
-  Property* prop = expr->AsProperty();
-  LhsKind assign_type = Property::GetAssignType(prop);
-
-  switch (assign_type) {
-    case VARIABLE: {
-      Variable* var = expr->AsVariableProxy()->var();
-      EffectContext context(this);
-      EmitVariableAssignment(var, Token::ASSIGN, slot);
-      break;
-    }
-    case NAMED_PROPERTY: {
-      __ Push(rax);  // Preserve value.
-      VisitForAccumulatorValue(prop->obj());
-      __ Move(StoreDescriptor::ReceiverRegister(), rax);
-      __ Pop(StoreDescriptor::ValueRegister());  // Restore value.
-      __ Move(StoreDescriptor::NameRegister(),
-              prop->key()->AsLiteral()->value());
-      if (FLAG_vector_stores) EmitLoadStoreICSlot(slot);
-      CallStoreIC();
-      break;
-    }
-    case NAMED_SUPER_PROPERTY: {
-      __ Push(rax);
-      VisitForStackValue(prop->obj()->AsSuperPropertyReference()->this_var());
-      VisitForAccumulatorValue(
-          prop->obj()->AsSuperPropertyReference()->home_object());
-      // stack: value, this; rax: home_object
-      Register scratch = rcx;
-      Register scratch2 = rdx;
-      __ Move(scratch, result_register());               // home_object
-      __ movp(rax, MemOperand(rsp, kPointerSize));       // value
-      __ movp(scratch2, MemOperand(rsp, 0));             // this
-      __ movp(MemOperand(rsp, kPointerSize), scratch2);  // this
-      __ movp(MemOperand(rsp, 0), scratch);              // home_object
-      // stack: this, home_object; rax: value
-      EmitNamedSuperPropertyStore(prop);
-      break;
-    }
-    case KEYED_SUPER_PROPERTY: {
-      __ Push(rax);
-      VisitForStackValue(prop->obj()->AsSuperPropertyReference()->this_var());
-      VisitForStackValue(
-          prop->obj()->AsSuperPropertyReference()->home_object());
-      VisitForAccumulatorValue(prop->key());
-      Register scratch = rcx;
-      Register scratch2 = rdx;
-      __ movp(scratch2, MemOperand(rsp, 2 * kPointerSize));  // value
-      // stack: value, this, home_object; rax: key, rdx: value
-      __ movp(scratch, MemOperand(rsp, kPointerSize));  // this
-      __ movp(MemOperand(rsp, 2 * kPointerSize), scratch);
-      __ movp(scratch, MemOperand(rsp, 0));  // home_object
-      __ movp(MemOperand(rsp, kPointerSize), scratch);
-      __ movp(MemOperand(rsp, 0), rax);
-      __ Move(rax, scratch2);
-      // stack: this, home_object, key; rax: value.
-      EmitKeyedSuperPropertyStore(prop);
-      break;
-    }
-    case KEYED_PROPERTY: {
-      __ Push(rax);  // Preserve value.
-      VisitForStackValue(prop->obj());
-      VisitForAccumulatorValue(prop->key());
-      __ Move(StoreDescriptor::NameRegister(), rax);
-      __ Pop(StoreDescriptor::ReceiverRegister());
-      __ Pop(StoreDescriptor::ValueRegister());  // Restore value.
-      if (FLAG_vector_stores) EmitLoadStoreICSlot(slot);
-      Handle<Code> ic =
-          CodeFactory::KeyedStoreIC(isolate(), language_mode()).code();
-      CallIC(ic);
-      break;
-    }
-  }
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitStoreToStackLocalOrContextSlot(
-    Variable* var, MemOperand location) {
-  __ movp(location, rax);
-  if (var->IsContextSlot()) {
-    __ movp(rdx, rax);
-    __ RecordWriteContextSlot(
-        rcx, Context::SlotOffset(var->index()), rdx, rbx, kDontSaveFPRegs);
-  }
-}
-
-
-void FullCodeGenerator::EmitVariableAssignment(Variable* var, Token::Value op,
-                                               FeedbackVectorICSlot slot) {
-  if (var->IsUnallocated()) {
-    // Global var, const, or let.
-    __ Move(StoreDescriptor::NameRegister(), var->name());
-    __ movp(StoreDescriptor::ReceiverRegister(), GlobalObjectOperand());
-    if (FLAG_vector_stores) EmitLoadStoreICSlot(slot);
-    CallStoreIC();
-
-  } else if (var->IsGlobalSlot()) {
-    // Global var, const, or let.
-    DCHECK(var->index() > 0);
-    DCHECK(var->IsStaticGlobalObjectProperty());
-    // Each var occupies two slots in the context: for reads and writes.
-    int slot_index = var->index() + 1;
-    int depth = scope()->ContextChainLength(var->scope());
-    __ Move(StoreGlobalViaContextDescriptor::DepthRegister(),
-            Smi::FromInt(depth));
-    __ Move(StoreGlobalViaContextDescriptor::SlotRegister(),
-            Smi::FromInt(slot_index));
-    __ Move(StoreGlobalViaContextDescriptor::NameRegister(), var->name());
-    DCHECK(StoreGlobalViaContextDescriptor::ValueRegister().is(rax));
-    StoreGlobalViaContextStub stub(isolate(), depth, language_mode());
-    __ CallStub(&stub);
-
-  } else if (var->mode() == LET && op != Token::INIT_LET) {
-    // Non-initializing assignment to let variable needs a write barrier.
-    DCHECK(!var->IsLookupSlot());
-    DCHECK(var->IsStackAllocated() || var->IsContextSlot());
-    Label assign;
-    MemOperand location = VarOperand(var, rcx);
-    __ movp(rdx, location);
-    __ CompareRoot(rdx, Heap::kTheHoleValueRootIndex);
-    __ j(not_equal, &assign, Label::kNear);
-    __ Push(var->name());
-    __ CallRuntime(Runtime::kThrowReferenceError, 1);
-    __ bind(&assign);
-    EmitStoreToStackLocalOrContextSlot(var, location);
-
-  } else if (var->mode() == CONST && op != Token::INIT_CONST) {
-    // Assignment to const variable needs a write barrier.
-    DCHECK(!var->IsLookupSlot());
-    DCHECK(var->IsStackAllocated() || var->IsContextSlot());
-    Label const_error;
-    MemOperand location = VarOperand(var, rcx);
-    __ movp(rdx, location);
-    __ CompareRoot(rdx, Heap::kTheHoleValueRootIndex);
-    __ j(not_equal, &const_error, Label::kNear);
-    __ Push(var->name());
-    __ CallRuntime(Runtime::kThrowReferenceError, 1);
-    __ bind(&const_error);
-    __ CallRuntime(Runtime::kThrowConstAssignError, 0);
-
-  } else if (var->is_this() && op == Token::INIT_CONST) {
-    // Initializing assignment to const {this} needs a write barrier.
-    DCHECK(var->IsStackAllocated() || var->IsContextSlot());
-    Label uninitialized_this;
-    MemOperand location = VarOperand(var, rcx);
-    __ movp(rdx, location);
-    __ CompareRoot(rdx, Heap::kTheHoleValueRootIndex);
-    __ j(equal, &uninitialized_this);
-    __ Push(var->name());
-    __ CallRuntime(Runtime::kThrowReferenceError, 1);
-    __ bind(&uninitialized_this);
-    EmitStoreToStackLocalOrContextSlot(var, location);
-
-  } else if (!var->is_const_mode() || op == Token::INIT_CONST) {
-    if (var->IsLookupSlot()) {
-      // Assignment to var.
-      __ Push(rax);  // Value.
-      __ Push(rsi);  // Context.
-      __ Push(var->name());
-      __ Push(Smi::FromInt(language_mode()));
-      __ CallRuntime(Runtime::kStoreLookupSlot, 4);
-    } else {
-      // Assignment to var or initializing assignment to let/const in harmony
-      // mode.
-      DCHECK(var->IsStackAllocated() || var->IsContextSlot());
-      MemOperand location = VarOperand(var, rcx);
-      if (generate_debug_code_ && op == Token::INIT_LET) {
-        // Check for an uninitialized let binding.
-        __ movp(rdx, location);
-        __ CompareRoot(rdx, Heap::kTheHoleValueRootIndex);
-        __ Check(equal, kLetBindingReInitialization);
-      }
-      EmitStoreToStackLocalOrContextSlot(var, location);
-    }
-
-  } else if (op == Token::INIT_CONST_LEGACY) {
-    // Const initializers need a write barrier.
-    DCHECK(var->mode() == CONST_LEGACY);
-    DCHECK(!var->IsParameter());  // No const parameters.
-    if (var->IsLookupSlot()) {
-      __ Push(rax);
-      __ Push(rsi);
-      __ Push(var->name());
-      __ CallRuntime(Runtime::kInitializeLegacyConstLookupSlot, 3);
-    } else {
-      DCHECK(var->IsStackLocal() || var->IsContextSlot());
-      Label skip;
-      MemOperand location = VarOperand(var, rcx);
-      __ movp(rdx, location);
-      __ CompareRoot(rdx, Heap::kTheHoleValueRootIndex);
-      __ j(not_equal, &skip);
-      EmitStoreToStackLocalOrContextSlot(var, location);
-      __ bind(&skip);
-    }
-
-  } else {
-    DCHECK(var->mode() == CONST_LEGACY && op != Token::INIT_CONST_LEGACY);
-    if (is_strict(language_mode())) {
-      __ CallRuntime(Runtime::kThrowConstAssignError, 0);
-    }
-    // Silently ignore store in sloppy mode.
-  }
-}
-
-
-void FullCodeGenerator::EmitNamedPropertyAssignment(Assignment* expr) {
-  // Assignment to a property, using a named store IC.
-  Property* prop = expr->target()->AsProperty();
-  DCHECK(prop != NULL);
-  DCHECK(prop->key()->IsLiteral());
-
-  __ Move(StoreDescriptor::NameRegister(), prop->key()->AsLiteral()->value());
-  __ Pop(StoreDescriptor::ReceiverRegister());
-  if (FLAG_vector_stores) {
-    EmitLoadStoreICSlot(expr->AssignmentSlot());
-    CallStoreIC();
-  } else {
-    CallStoreIC(expr->AssignmentFeedbackId());
-  }
-
-  PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitNamedSuperPropertyStore(Property* prop) {
-  // Assignment to named property of super.
-  // rax : value
-  // stack : receiver ('this'), home_object
-  DCHECK(prop != NULL);
-  Literal* key = prop->key()->AsLiteral();
-  DCHECK(key != NULL);
-
-  __ Push(key->value());
-  __ Push(rax);
-  __ CallRuntime((is_strict(language_mode()) ? Runtime::kStoreToSuper_Strict
-                                             : Runtime::kStoreToSuper_Sloppy),
-                 4);
-}
-
-
-void FullCodeGenerator::EmitKeyedSuperPropertyStore(Property* prop) {
-  // Assignment to named property of super.
-  // rax : value
-  // stack : receiver ('this'), home_object, key
-  DCHECK(prop != NULL);
-
-  __ Push(rax);
-  __ CallRuntime(
-      (is_strict(language_mode()) ? Runtime::kStoreKeyedToSuper_Strict
-                                  : Runtime::kStoreKeyedToSuper_Sloppy),
-      4);
-}
-
-
-void FullCodeGenerator::EmitKeyedPropertyAssignment(Assignment* expr) {
-  // Assignment to a property, using a keyed store IC.
-  __ Pop(StoreDescriptor::NameRegister());  // Key.
-  __ Pop(StoreDescriptor::ReceiverRegister());
-  DCHECK(StoreDescriptor::ValueRegister().is(rax));
-  Handle<Code> ic =
-      CodeFactory::KeyedStoreIC(isolate(), language_mode()).code();
-  if (FLAG_vector_stores) {
-    EmitLoadStoreICSlot(expr->AssignmentSlot());
-    CallIC(ic);
-  } else {
-    CallIC(ic, expr->AssignmentFeedbackId());
-  }
-
-  PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::VisitProperty(Property* expr) {
-  Comment cmnt(masm_, "[ Property");
-  SetExpressionPosition(expr);
-
-  Expression* key = expr->key();
-
-  if (key->IsPropertyName()) {
-    if (!expr->IsSuperAccess()) {
-      VisitForAccumulatorValue(expr->obj());
-      DCHECK(!rax.is(LoadDescriptor::ReceiverRegister()));
-      __ movp(LoadDescriptor::ReceiverRegister(), rax);
-      EmitNamedPropertyLoad(expr);
-    } else {
-      VisitForStackValue(expr->obj()->AsSuperPropertyReference()->this_var());
-      VisitForStackValue(
-          expr->obj()->AsSuperPropertyReference()->home_object());
-      EmitNamedSuperPropertyLoad(expr);
-    }
-  } else {
-    if (!expr->IsSuperAccess()) {
-      VisitForStackValue(expr->obj());
-      VisitForAccumulatorValue(expr->key());
-      __ Move(LoadDescriptor::NameRegister(), rax);
-      __ Pop(LoadDescriptor::ReceiverRegister());
-      EmitKeyedPropertyLoad(expr);
-    } else {
-      VisitForStackValue(expr->obj()->AsSuperPropertyReference()->this_var());
-      VisitForStackValue(
-          expr->obj()->AsSuperPropertyReference()->home_object());
-      VisitForStackValue(expr->key());
-      EmitKeyedSuperPropertyLoad(expr);
-    }
-  }
-  PrepareForBailoutForId(expr->LoadId(), TOS_REG);
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::CallIC(Handle<Code> code,
-                               TypeFeedbackId ast_id) {
-  ic_total_count_++;
-  __ call(code, RelocInfo::CODE_TARGET, ast_id);
-}
-
-
-// Code common for calls using the IC.
-void FullCodeGenerator::EmitCallWithLoadIC(Call* expr) {
-  Expression* callee = expr->expression();
-
-  CallICState::CallType call_type =
-      callee->IsVariableProxy() ? CallICState::FUNCTION : CallICState::METHOD;
-  // Get the target function.
-  if (call_type == CallICState::FUNCTION) {
-    { StackValueContext context(this);
-      EmitVariableLoad(callee->AsVariableProxy());
-      PrepareForBailout(callee, NO_REGISTERS);
-    }
-    // Push undefined as receiver. This is patched in the method prologue if it
-    // is a sloppy mode method.
-    __ Push(isolate()->factory()->undefined_value());
-  } else {
-    // Load the function from the receiver.
-    DCHECK(callee->IsProperty());
-    DCHECK(!callee->AsProperty()->IsSuperAccess());
-    __ movp(LoadDescriptor::ReceiverRegister(), Operand(rsp, 0));
-    EmitNamedPropertyLoad(callee->AsProperty());
-    PrepareForBailoutForId(callee->AsProperty()->LoadId(), TOS_REG);
-    // Push the target function under the receiver.
-    __ Push(Operand(rsp, 0));
-    __ movp(Operand(rsp, kPointerSize), rax);
-  }
-
-  EmitCall(expr, call_type);
-}
-
-
-void FullCodeGenerator::EmitSuperCallWithLoadIC(Call* expr) {
-  Expression* callee = expr->expression();
-  DCHECK(callee->IsProperty());
-  Property* prop = callee->AsProperty();
-  DCHECK(prop->IsSuperAccess());
-  SetExpressionPosition(prop);
-
-  Literal* key = prop->key()->AsLiteral();
-  DCHECK(!key->value()->IsSmi());
-  // Load the function from the receiver.
-  SuperPropertyReference* super_ref = prop->obj()->AsSuperPropertyReference();
-  VisitForStackValue(super_ref->home_object());
-  VisitForAccumulatorValue(super_ref->this_var());
-  __ Push(rax);
-  __ Push(rax);
-  __ Push(Operand(rsp, kPointerSize * 2));
-  __ Push(key->value());
-  __ Push(Smi::FromInt(language_mode()));
-
-  // Stack here:
-  //  - home_object
-  //  - this (receiver)
-  //  - this (receiver) <-- LoadFromSuper will pop here and below.
-  //  - home_object
-  //  - key
-  //  - language_mode
-  __ CallRuntime(Runtime::kLoadFromSuper, 4);
-
-  // Replace home_object with target function.
-  __ movp(Operand(rsp, kPointerSize), rax);
-
-  // Stack here:
-  // - target function
-  // - this (receiver)
-  EmitCall(expr, CallICState::METHOD);
-}
-
-
-// Common code for calls using the IC.
-void FullCodeGenerator::EmitKeyedCallWithLoadIC(Call* expr,
-                                                Expression* key) {
-  // Load the key.
-  VisitForAccumulatorValue(key);
-
-  Expression* callee = expr->expression();
-
-  // Load the function from the receiver.
-  DCHECK(callee->IsProperty());
-  __ movp(LoadDescriptor::ReceiverRegister(), Operand(rsp, 0));
-  __ Move(LoadDescriptor::NameRegister(), rax);
-  EmitKeyedPropertyLoad(callee->AsProperty());
-  PrepareForBailoutForId(callee->AsProperty()->LoadId(), TOS_REG);
-
-  // Push the target function under the receiver.
-  __ Push(Operand(rsp, 0));
-  __ movp(Operand(rsp, kPointerSize), rax);
-
-  EmitCall(expr, CallICState::METHOD);
-}
-
-
-void FullCodeGenerator::EmitKeyedSuperCallWithLoadIC(Call* expr) {
-  Expression* callee = expr->expression();
-  DCHECK(callee->IsProperty());
-  Property* prop = callee->AsProperty();
-  DCHECK(prop->IsSuperAccess());
-
-  SetExpressionPosition(prop);
-  // Load the function from the receiver.
-  SuperPropertyReference* super_ref = prop->obj()->AsSuperPropertyReference();
-  VisitForStackValue(super_ref->home_object());
-  VisitForAccumulatorValue(super_ref->this_var());
-  __ Push(rax);
-  __ Push(rax);
-  __ Push(Operand(rsp, kPointerSize * 2));
-  VisitForStackValue(prop->key());
-  __ Push(Smi::FromInt(language_mode()));
-
-  // Stack here:
-  //  - home_object
-  //  - this (receiver)
-  //  - this (receiver) <-- LoadKeyedFromSuper will pop here and below.
-  //  - home_object
-  //  - key
-  //  - language_mode
-  __ CallRuntime(Runtime::kLoadKeyedFromSuper, 4);
-
-  // Replace home_object with target function.
-  __ movp(Operand(rsp, kPointerSize), rax);
-
-  // Stack here:
-  // - target function
-  // - this (receiver)
-  EmitCall(expr, CallICState::METHOD);
-}
-
-
-void FullCodeGenerator::EmitCall(Call* expr, CallICState::CallType call_type) {
-  // Load the arguments.
-  ZoneList<Expression*>* args = expr->arguments();
-  int arg_count = args->length();
-  for (int i = 0; i < arg_count; i++) {
-    VisitForStackValue(args->at(i));
-  }
-
-  SetCallPosition(expr, arg_count);
-  Handle<Code> ic = CodeFactory::CallIC(isolate(), arg_count, call_type).code();
-  __ Move(rdx, SmiFromSlot(expr->CallFeedbackICSlot()));
-  __ movp(rdi, Operand(rsp, (arg_count + 1) * kPointerSize));
-  // Don't assign a type feedback id to the IC, since type feedback is provided
-  // by the vector above.
-  CallIC(ic);
-
-  RecordJSReturnSite(expr);
-
-  // Restore context register.
-  __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
-  // Discard the function left on TOS.
-  context()->DropAndPlug(1, rax);
-}
-
-
-void FullCodeGenerator::EmitResolvePossiblyDirectEval(int arg_count) {
-  // Push copy of the first argument or undefined if it doesn't exist.
-  if (arg_count > 0) {
-    __ Push(Operand(rsp, arg_count * kPointerSize));
-  } else {
-    __ PushRoot(Heap::kUndefinedValueRootIndex);
-  }
-
-  // Push the enclosing function.
-  __ Push(Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
-
-  // Push the language mode.
-  __ Push(Smi::FromInt(language_mode()));
-
-  // Push the start position of the scope the calls resides in.
-  __ Push(Smi::FromInt(scope()->start_position()));
-
-  // Do the runtime call.
-  __ CallRuntime(Runtime::kResolvePossiblyDirectEval, 5);
-}
-
-
-// See http://www.ecma-international.org/ecma-262/6.0/#sec-function-calls.
-void FullCodeGenerator::PushCalleeAndWithBaseObject(Call* expr) {
-  VariableProxy* callee = expr->expression()->AsVariableProxy();
-  if (callee->var()->IsLookupSlot()) {
-    Label slow, done;
-    SetExpressionPosition(callee);
-    // Generate code for loading from variables potentially shadowed by
-    // eval-introduced variables.
-    EmitDynamicLookupFastCase(callee, NOT_INSIDE_TYPEOF, &slow, &done);
-    __ bind(&slow);
-    // Call the runtime to find the function to call (returned in rax) and
-    // the object holding it (returned in rdx).
-    __ Push(context_register());
-    __ Push(callee->name());
-    __ CallRuntime(Runtime::kLoadLookupSlot, 2);
-    __ Push(rax);  // Function.
-    __ Push(rdx);  // Receiver.
-    PrepareForBailoutForId(expr->LookupId(), NO_REGISTERS);
-
-    // If fast case code has been generated, emit code to push the function
-    // and receiver and have the slow path jump around this code.
-    if (done.is_linked()) {
-      Label call;
-      __ jmp(&call, Label::kNear);
-      __ bind(&done);
-      // Push function.
-      __ Push(rax);
-      // Pass undefined as the receiver, which is the WithBaseObject of a
-      // non-object environment record.  If the callee is sloppy, it will patch
-      // it up to be the global receiver.
-      __ PushRoot(Heap::kUndefinedValueRootIndex);
-      __ bind(&call);
-    }
-  } else {
-    VisitForStackValue(callee);
-    // refEnv.WithBaseObject()
-    __ PushRoot(Heap::kUndefinedValueRootIndex);
-  }
-}
-
-
-void FullCodeGenerator::VisitCall(Call* expr) {
-#ifdef DEBUG
-  // We want to verify that RecordJSReturnSite gets called on all paths
-  // through this function.  Avoid early returns.
-  expr->return_is_recorded_ = false;
-#endif
-
-  Comment cmnt(masm_, "[ Call");
-  Expression* callee = expr->expression();
-  Call::CallType call_type = expr->GetCallType(isolate());
-
-  if (call_type == Call::POSSIBLY_EVAL_CALL) {
-    // In a call to eval, we first call RuntimeHidden_ResolvePossiblyDirectEval
-    // to resolve the function we need to call.  Then we call the resolved
-    // function using the given arguments.
-    ZoneList<Expression*>* args = expr->arguments();
-    int arg_count = args->length();
-    PushCalleeAndWithBaseObject(expr);
-
-    // Push the arguments.
-    for (int i = 0; i < arg_count; i++) {
-      VisitForStackValue(args->at(i));
-    }
-
-    // Push a copy of the function (found below the arguments) and resolve
-    // eval.
-    __ Push(Operand(rsp, (arg_count + 1) * kPointerSize));
-    EmitResolvePossiblyDirectEval(arg_count);
-
-    // Touch up the callee.
-    __ movp(Operand(rsp, (arg_count + 1) * kPointerSize), rax);
-
-    PrepareForBailoutForId(expr->EvalId(), NO_REGISTERS);
-
-    SetCallPosition(expr, arg_count);
-    CallFunctionStub stub(isolate(), arg_count, NO_CALL_FUNCTION_FLAGS);
-    __ movp(rdi, Operand(rsp, (arg_count + 1) * kPointerSize));
-    __ CallStub(&stub);
-    RecordJSReturnSite(expr);
-    // Restore context register.
-    __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
-    context()->DropAndPlug(1, rax);
-  } else if (call_type == Call::GLOBAL_CALL) {
-    EmitCallWithLoadIC(expr);
-
-  } else if (call_type == Call::LOOKUP_SLOT_CALL) {
-    // Call to a lookup slot (dynamically introduced variable).
-    PushCalleeAndWithBaseObject(expr);
-    EmitCall(expr);
-  } else if (call_type == Call::PROPERTY_CALL) {
-    Property* property = callee->AsProperty();
-    bool is_named_call = property->key()->IsPropertyName();
-    if (property->IsSuperAccess()) {
-      if (is_named_call) {
-        EmitSuperCallWithLoadIC(expr);
-      } else {
-        EmitKeyedSuperCallWithLoadIC(expr);
-      }
-    } else {
-        VisitForStackValue(property->obj());
-      if (is_named_call) {
-        EmitCallWithLoadIC(expr);
-      } else {
-        EmitKeyedCallWithLoadIC(expr, property->key());
-      }
-    }
-  } else if (call_type == Call::SUPER_CALL) {
-    EmitSuperConstructorCall(expr);
-  } else {
-    DCHECK(call_type == Call::OTHER_CALL);
-    // Call to an arbitrary expression not handled specially above.
-      VisitForStackValue(callee);
-    __ PushRoot(Heap::kUndefinedValueRootIndex);
-    // Emit function call.
-    EmitCall(expr);
-  }
-
-#ifdef DEBUG
-  // RecordJSReturnSite should have been called.
-  DCHECK(expr->return_is_recorded_);
-#endif
-}
-
-
-void FullCodeGenerator::VisitCallNew(CallNew* expr) {
-  Comment cmnt(masm_, "[ CallNew");
-  // According to ECMA-262, section 11.2.2, page 44, the function
-  // expression in new calls must be evaluated before the
-  // arguments.
-
-  // Push constructor on the stack.  If it's not a function it's used as
-  // receiver for CALL_NON_FUNCTION, otherwise the value on the stack is
-  // ignored.
-  DCHECK(!expr->expression()->IsSuperPropertyReference());
-  VisitForStackValue(expr->expression());
-
-  // Push the arguments ("left-to-right") on the stack.
-  ZoneList<Expression*>* args = expr->arguments();
-  int arg_count = args->length();
-  for (int i = 0; i < arg_count; i++) {
-    VisitForStackValue(args->at(i));
-  }
-
-  // Call the construct call builtin that handles allocation and
-  // constructor invocation.
-  SetConstructCallPosition(expr);
-
-  // Load function and argument count into rdi and rax.
-  __ Set(rax, arg_count);
-  __ movp(rdi, Operand(rsp, arg_count * kPointerSize));
-
-  // Record call targets in unoptimized code, but not in the snapshot.
-  if (FLAG_pretenuring_call_new) {
-    EnsureSlotContainsAllocationSite(expr->AllocationSiteFeedbackSlot());
-    DCHECK(expr->AllocationSiteFeedbackSlot().ToInt() ==
-           expr->CallNewFeedbackSlot().ToInt() + 1);
-  }
-
-  __ Move(rbx, FeedbackVector());
-  __ Move(rdx, SmiFromSlot(expr->CallNewFeedbackSlot()));
-
-  CallConstructStub stub(isolate(), RECORD_CONSTRUCTOR_TARGET);
-  __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL);
-  PrepareForBailoutForId(expr->ReturnId(), TOS_REG);
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitSuperConstructorCall(Call* expr) {
-  SuperCallReference* super_call_ref =
-      expr->expression()->AsSuperCallReference();
-  DCHECK_NOT_NULL(super_call_ref);
-
-  EmitLoadSuperConstructor(super_call_ref);
-  __ Push(result_register());
-
-  // Push the arguments ("left-to-right") on the stack.
-  ZoneList<Expression*>* args = expr->arguments();
-  int arg_count = args->length();
-  for (int i = 0; i < arg_count; i++) {
-    VisitForStackValue(args->at(i));
-  }
-
-  // Call the construct call builtin that handles allocation and
-  // constructor invocation.
-  SetConstructCallPosition(expr);
-
-  // Load original constructor into rcx.
-  VisitForAccumulatorValue(super_call_ref->new_target_var());
-  __ movp(rcx, result_register());
-
-  // Load function and argument count into rdi and rax.
-  __ Set(rax, arg_count);
-  __ movp(rdi, Operand(rsp, arg_count * kPointerSize));
-
-  // Record call targets in unoptimized code.
-  if (FLAG_pretenuring_call_new) {
-    UNREACHABLE();
-    /* TODO(dslomov): support pretenuring.
-    EnsureSlotContainsAllocationSite(expr->AllocationSiteFeedbackSlot());
-    DCHECK(expr->AllocationSiteFeedbackSlot().ToInt() ==
-           expr->CallNewFeedbackSlot().ToInt() + 1);
-    */
-  }
-
-  __ Move(rbx, FeedbackVector());
-  __ Move(rdx, SmiFromSlot(expr->CallFeedbackSlot()));
-
-  CallConstructStub stub(isolate(), SUPER_CALL_RECORD_TARGET);
-  __ call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL);
-
-  RecordJSReturnSite(expr);
-
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitIsSmi(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));
-
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  __ JumpIfSmi(rax, if_true);
-  __ jmp(if_false);
-
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitIsNonNegativeSmi(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));
-
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Condition non_negative_smi = masm()->CheckNonNegativeSmi(rax);
-  Split(non_negative_smi, if_true, if_false, fall_through);
-
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitIsObject(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));
-
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  __ JumpIfSmi(rax, if_false);
-  __ CompareRoot(rax, Heap::kNullValueRootIndex);
-  __ j(equal, if_true);
-  __ movp(rbx, FieldOperand(rax, HeapObject::kMapOffset));
-  // Undetectable objects behave like undefined when tested with typeof.
-  __ testb(FieldOperand(rbx, Map::kBitFieldOffset),
-           Immediate(1 << Map::kIsUndetectable));
-  __ j(not_zero, if_false);
-  __ movzxbp(rbx, FieldOperand(rbx, Map::kInstanceTypeOffset));
-  __ cmpp(rbx, Immediate(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE));
-  __ j(below, if_false);
-  __ cmpp(rbx, Immediate(LAST_NONCALLABLE_SPEC_OBJECT_TYPE));
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Split(below_equal, if_true, if_false, fall_through);
-
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitIsSpecObject(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));
-
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  __ JumpIfSmi(rax, if_false);
-  __ CmpObjectType(rax, FIRST_SPEC_OBJECT_TYPE, rbx);
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Split(above_equal, if_true, if_false, fall_through);
-
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitIsUndetectableObject(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));
-
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  __ JumpIfSmi(rax, if_false);
-  __ movp(rbx, FieldOperand(rax, HeapObject::kMapOffset));
-  __ testb(FieldOperand(rbx, Map::kBitFieldOffset),
-           Immediate(1 << Map::kIsUndetectable));
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Split(not_zero, if_true, if_false, fall_through);
-
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitIsStringWrapperSafeForDefaultValueOf(
-    CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));
-
-  Label materialize_true, materialize_false, skip_lookup;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  __ AssertNotSmi(rax);
-
-  // Check whether this map has already been checked to be safe for default
-  // valueOf.
-  __ movp(rbx, FieldOperand(rax, HeapObject::kMapOffset));
-  __ testb(FieldOperand(rbx, Map::kBitField2Offset),
-           Immediate(1 << Map::kStringWrapperSafeForDefaultValueOf));
-  __ j(not_zero, &skip_lookup);
-
-  // Check for fast case object. Generate false result for slow case object.
-  __ movp(rcx, FieldOperand(rax, JSObject::kPropertiesOffset));
-  __ movp(rcx, FieldOperand(rcx, HeapObject::kMapOffset));
-  __ CompareRoot(rcx, Heap::kHashTableMapRootIndex);
-  __ j(equal, if_false);
-
-  // Look for valueOf string in the descriptor array, and indicate false if
-  // found. Since we omit an enumeration index check, if it is added via a
-  // transition that shares its descriptor array, this is a false positive.
-  Label entry, loop, done;
-
-  // Skip loop if no descriptors are valid.
-  __ NumberOfOwnDescriptors(rcx, rbx);
-  __ cmpp(rcx, Immediate(0));
-  __ j(equal, &done);
-
-  __ LoadInstanceDescriptors(rbx, r8);
-  // rbx: descriptor array.
-  // rcx: valid entries in the descriptor array.
-  // Calculate the end of the descriptor array.
-  __ imulp(rcx, rcx, Immediate(DescriptorArray::kDescriptorSize));
-  __ leap(rcx,
-          Operand(r8, rcx, times_pointer_size, DescriptorArray::kFirstOffset));
-  // Calculate location of the first key name.
-  __ addp(r8, Immediate(DescriptorArray::kFirstOffset));
-  // Loop through all the keys in the descriptor array. If one of these is the
-  // internalized string "valueOf" the result is false.
-  __ jmp(&entry);
-  __ bind(&loop);
-  __ movp(rdx, FieldOperand(r8, 0));
-  __ Cmp(rdx, isolate()->factory()->value_of_string());
-  __ j(equal, if_false);
-  __ addp(r8, Immediate(DescriptorArray::kDescriptorSize * kPointerSize));
-  __ bind(&entry);
-  __ cmpp(r8, rcx);
-  __ j(not_equal, &loop);
-
-  __ bind(&done);
-
-  // Set the bit in the map to indicate that there is no local valueOf field.
-  __ orp(FieldOperand(rbx, Map::kBitField2Offset),
-         Immediate(1 << Map::kStringWrapperSafeForDefaultValueOf));
-
-  __ bind(&skip_lookup);
-
-  // If a valueOf property is not found on the object check that its
-  // prototype is the un-modified String prototype. If not result is false.
-  __ movp(rcx, FieldOperand(rbx, Map::kPrototypeOffset));
-  __ testp(rcx, Immediate(kSmiTagMask));
-  __ j(zero, if_false);
-  __ movp(rcx, FieldOperand(rcx, HeapObject::kMapOffset));
-  __ movp(rdx, Operand(rsi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
-  __ movp(rdx, FieldOperand(rdx, GlobalObject::kNativeContextOffset));
-  __ cmpp(rcx,
-          ContextOperand(rdx, Context::STRING_FUNCTION_PROTOTYPE_MAP_INDEX));
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Split(equal, if_true, if_false, fall_through);
-
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitIsFunction(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));
-
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  __ JumpIfSmi(rax, if_false);
-  __ CmpObjectType(rax, JS_FUNCTION_TYPE, rbx);
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Split(equal, if_true, if_false, fall_through);
-
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitIsMinusZero(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));
-
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  Handle<Map> map = masm()->isolate()->factory()->heap_number_map();
-  __ CheckMap(rax, map, if_false, DO_SMI_CHECK);
-  __ cmpl(FieldOperand(rax, HeapNumber::kExponentOffset),
-          Immediate(0x1));
-  __ j(no_overflow, if_false);
-  __ cmpl(FieldOperand(rax, HeapNumber::kMantissaOffset),
-          Immediate(0x00000000));
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Split(equal, if_true, if_false, fall_through);
-
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitIsArray(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));
-
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  __ JumpIfSmi(rax, if_false);
-  __ CmpObjectType(rax, JS_ARRAY_TYPE, rbx);
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Split(equal, if_true, if_false, fall_through);
-
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitIsTypedArray(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));
-
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
-                         &if_false, &fall_through);
-
-  __ JumpIfSmi(rax, if_false);
-  __ CmpObjectType(rax, JS_TYPED_ARRAY_TYPE, rbx);
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Split(equal, if_true, if_false, fall_through);
-
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitIsRegExp(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));
-
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  __ JumpIfSmi(rax, if_false);
-  __ CmpObjectType(rax, JS_REGEXP_TYPE, rbx);
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Split(equal, if_true, if_false, fall_through);
-
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitIsJSProxy(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));
-
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
-                         &if_false, &fall_through);
-
-  __ JumpIfSmi(rax, if_false);
-  Register map = rbx;
-  __ movp(map, FieldOperand(rax, HeapObject::kMapOffset));
-  __ CmpInstanceType(map, FIRST_JS_PROXY_TYPE);
-  __ j(less, if_false);
-  __ CmpInstanceType(map, LAST_JS_PROXY_TYPE);
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Split(less_equal, if_true, if_false, fall_through);
-
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitIsConstructCall(CallRuntime* expr) {
-  DCHECK(expr->arguments()->length() == 0);
-
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  // Get the frame pointer for the calling frame.
-  __ movp(rax, Operand(rbp, StandardFrameConstants::kCallerFPOffset));
-
-  // Skip the arguments adaptor frame if it exists.
-  Label check_frame_marker;
-  __ Cmp(Operand(rax, StandardFrameConstants::kContextOffset),
-         Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR));
-  __ j(not_equal, &check_frame_marker);
-  __ movp(rax, Operand(rax, StandardFrameConstants::kCallerFPOffset));
-
-  // Check the marker in the calling frame.
-  __ bind(&check_frame_marker);
-  __ Cmp(Operand(rax, StandardFrameConstants::kMarkerOffset),
-         Smi::FromInt(StackFrame::CONSTRUCT));
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Split(equal, if_true, if_false, fall_through);
-
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitObjectEquals(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 2);
-
-  // Load the two objects into registers and perform the comparison.
-  VisitForStackValue(args->at(0));
-  VisitForAccumulatorValue(args->at(1));
-
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  __ Pop(rbx);
-  __ cmpp(rax, rbx);
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Split(equal, if_true, if_false, fall_through);
-
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitArguments(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  // ArgumentsAccessStub expects the key in rdx and the formal
-  // parameter count in rax.
-  VisitForAccumulatorValue(args->at(0));
-  __ movp(rdx, rax);
-  __ Move(rax, Smi::FromInt(info_->scope()->num_parameters()));
-  ArgumentsAccessStub stub(isolate(), ArgumentsAccessStub::READ_ELEMENT);
-  __ CallStub(&stub);
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitArgumentsLength(CallRuntime* expr) {
-  DCHECK(expr->arguments()->length() == 0);
-
-  Label exit;
-  // Get the number of formal parameters.
-  __ Move(rax, Smi::FromInt(info_->scope()->num_parameters()));
-
-  // Check if the calling frame is an arguments adaptor frame.
-  __ movp(rbx, Operand(rbp, StandardFrameConstants::kCallerFPOffset));
-  __ Cmp(Operand(rbx, StandardFrameConstants::kContextOffset),
-         Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR));
-  __ j(not_equal, &exit, Label::kNear);
-
-  // Arguments adaptor case: Read the arguments length from the
-  // adaptor frame.
-  __ movp(rax, Operand(rbx, ArgumentsAdaptorFrameConstants::kLengthOffset));
-
-  __ bind(&exit);
-  __ AssertSmi(rax);
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitClassOf(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-  Label done, null, function, non_function_constructor;
-
-  VisitForAccumulatorValue(args->at(0));
-
-  // If the object is a smi, we return null.
-  __ JumpIfSmi(rax, &null);
-
-  // Check that the object is a JS object but take special care of JS
-  // functions to make sure they have 'Function' as their class.
-  // Assume that there are only two callable types, and one of them is at
-  // either end of the type range for JS object types. Saves extra comparisons.
-  STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2);
-  __ CmpObjectType(rax, FIRST_SPEC_OBJECT_TYPE, rax);
-  // Map is now in rax.
-  __ j(below, &null);
-  STATIC_ASSERT(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE ==
-                FIRST_SPEC_OBJECT_TYPE + 1);
-  __ j(equal, &function);
-
-  __ CmpInstanceType(rax, LAST_SPEC_OBJECT_TYPE);
-  STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE ==
-                LAST_SPEC_OBJECT_TYPE - 1);
-  __ j(equal, &function);
-  // Assume that there is no larger type.
-  STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE == LAST_TYPE - 1);
-
-  // Check if the constructor in the map is a JS function.
-  __ GetMapConstructor(rax, rax, rbx);
-  __ CmpInstanceType(rbx, JS_FUNCTION_TYPE);
-  __ j(not_equal, &non_function_constructor);
-
-  // rax now contains the constructor function. Grab the
-  // instance class name from there.
-  __ movp(rax, FieldOperand(rax, JSFunction::kSharedFunctionInfoOffset));
-  __ movp(rax, FieldOperand(rax, SharedFunctionInfo::kInstanceClassNameOffset));
-  __ jmp(&done);
-
-  // Functions have class 'Function'.
-  __ bind(&function);
-  __ Move(rax, isolate()->factory()->Function_string());
-  __ jmp(&done);
-
-  // Objects with a non-function constructor have class 'Object'.
-  __ bind(&non_function_constructor);
-  __ Move(rax, isolate()->factory()->Object_string());
-  __ jmp(&done);
-
-  // Non-JS objects have class null.
-  __ bind(&null);
-  __ LoadRoot(rax, Heap::kNullValueRootIndex);
-
-  // All done.
-  __ bind(&done);
-
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitValueOf(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));  // Load the object.
-
-  Label done;
-  // If the object is a smi return the object.
-  __ JumpIfSmi(rax, &done);
-  // If the object is not a value type, return the object.
-  __ CmpObjectType(rax, JS_VALUE_TYPE, rbx);
-  __ j(not_equal, &done);
-  __ movp(rax, FieldOperand(rax, JSValue::kValueOffset));
-
-  __ bind(&done);
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitIsDate(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK_EQ(1, args->length());
-
-  VisitForAccumulatorValue(args->at(0));
-
-  Label materialize_true, materialize_false;
-  Label* if_true = nullptr;
-  Label* if_false = nullptr;
-  Label* fall_through = nullptr;
-  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
-                         &if_false, &fall_through);
-
-  __ JumpIfSmi(rax, if_false);
-  __ CmpObjectType(rax, JS_DATE_TYPE, rbx);
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Split(equal, if_true, if_false, fall_through);
-
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitDateField(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 2);
-  DCHECK_NOT_NULL(args->at(1)->AsLiteral());
-  Smi* index = Smi::cast(*(args->at(1)->AsLiteral()->value()));
-
-  VisitForAccumulatorValue(args->at(0));  // Load the object.
-
-  Register object = rax;
-  Register result = rax;
-  Register scratch = rcx;
-
-  if (FLAG_debug_code) {
-    __ AssertNotSmi(object);
-    __ CmpObjectType(object, JS_DATE_TYPE, scratch);
-    __ Check(equal, kOperandIsNotADate);
-  }
-
-  if (index->value() == 0) {
-    __ movp(result, FieldOperand(object, JSDate::kValueOffset));
-  } else {
-    Label runtime, done;
-    if (index->value() < JSDate::kFirstUncachedField) {
-      ExternalReference stamp = ExternalReference::date_cache_stamp(isolate());
-      Operand stamp_operand = __ ExternalOperand(stamp);
-      __ movp(scratch, stamp_operand);
-      __ cmpp(scratch, FieldOperand(object, JSDate::kCacheStampOffset));
-      __ j(not_equal, &runtime, Label::kNear);
-      __ movp(result, FieldOperand(object, JSDate::kValueOffset +
-                                           kPointerSize * index->value()));
-      __ jmp(&done, Label::kNear);
-    }
-    __ bind(&runtime);
-    __ PrepareCallCFunction(2);
-    __ movp(arg_reg_1, object);
-    __ Move(arg_reg_2, index, Assembler::RelocInfoNone());
-    __ CallCFunction(ExternalReference::get_date_field_function(isolate()), 2);
-    __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
-    __ bind(&done);
-  }
-
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitOneByteSeqStringSetChar(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK_EQ(3, args->length());
-
-  Register string = rax;
-  Register index = rbx;
-  Register value = rcx;
-
-  VisitForStackValue(args->at(0));        // index
-  VisitForStackValue(args->at(1));        // value
-  VisitForAccumulatorValue(args->at(2));  // string
-  __ Pop(value);
-  __ Pop(index);
-
-  if (FLAG_debug_code) {
-    __ Check(__ CheckSmi(value), kNonSmiValue);
-    __ Check(__ CheckSmi(index), kNonSmiValue);
-  }
-
-  __ SmiToInteger32(value, value);
-  __ SmiToInteger32(index, index);
-
-  if (FLAG_debug_code) {
-    static const uint32_t one_byte_seq_type = kSeqStringTag | kOneByteStringTag;
-    __ EmitSeqStringSetCharCheck(string, index, value, one_byte_seq_type);
-  }
-
-  __ movb(FieldOperand(string, index, times_1, SeqOneByteString::kHeaderSize),
-          value);
-  context()->Plug(string);
-}
-
-
-void FullCodeGenerator::EmitTwoByteSeqStringSetChar(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK_EQ(3, args->length());
-
-  Register string = rax;
-  Register index = rbx;
-  Register value = rcx;
-
-  VisitForStackValue(args->at(0));        // index
-  VisitForStackValue(args->at(1));        // value
-  VisitForAccumulatorValue(args->at(2));  // string
-  __ Pop(value);
-  __ Pop(index);
-
-  if (FLAG_debug_code) {
-    __ Check(__ CheckSmi(value), kNonSmiValue);
-    __ Check(__ CheckSmi(index), kNonSmiValue);
-  }
-
-  __ SmiToInteger32(value, value);
-  __ SmiToInteger32(index, index);
-
-  if (FLAG_debug_code) {
-    static const uint32_t two_byte_seq_type = kSeqStringTag | kTwoByteStringTag;
-    __ EmitSeqStringSetCharCheck(string, index, value, two_byte_seq_type);
-  }
-
-  __ movw(FieldOperand(string, index, times_2, SeqTwoByteString::kHeaderSize),
-          value);
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitSetValueOf(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 2);
-
-  VisitForStackValue(args->at(0));  // Load the object.
-  VisitForAccumulatorValue(args->at(1));  // Load the value.
-  __ Pop(rbx);  // rax = value. rbx = object.
-
-  Label done;
-  // If the object is a smi, return the value.
-  __ JumpIfSmi(rbx, &done);
-
-  // If the object is not a value type, return the value.
-  __ CmpObjectType(rbx, JS_VALUE_TYPE, rcx);
-  __ j(not_equal, &done);
-
-  // Store the value.
-  __ movp(FieldOperand(rbx, JSValue::kValueOffset), rax);
-  // Update the write barrier.  Save the value as it will be
-  // overwritten by the write barrier code and is needed afterward.
-  __ movp(rdx, rax);
-  __ RecordWriteField(rbx, JSValue::kValueOffset, rdx, rcx, kDontSaveFPRegs);
-
-  __ bind(&done);
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitNumberToString(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK_EQ(args->length(), 1);
-
-  // Load the argument into rax and call the stub.
-  VisitForAccumulatorValue(args->at(0));
-
-  NumberToStringStub stub(isolate());
-  __ CallStub(&stub);
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitStringCharFromCode(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));
-
-  Label done;
-  StringCharFromCodeGenerator generator(rax, rbx);
-  generator.GenerateFast(masm_);
-  __ jmp(&done);
-
-  NopRuntimeCallHelper call_helper;
-  generator.GenerateSlow(masm_, call_helper);
-
-  __ bind(&done);
-  context()->Plug(rbx);
-}
-
-
-void FullCodeGenerator::EmitStringCharCodeAt(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 2);
-
-  VisitForStackValue(args->at(0));
-  VisitForAccumulatorValue(args->at(1));
-
-  Register object = rbx;
-  Register index = rax;
-  Register result = rdx;
-
-  __ Pop(object);
-
-  Label need_conversion;
-  Label index_out_of_range;
-  Label done;
-  StringCharCodeAtGenerator generator(object,
-                                      index,
-                                      result,
-                                      &need_conversion,
-                                      &need_conversion,
-                                      &index_out_of_range,
-                                      STRING_INDEX_IS_NUMBER);
-  generator.GenerateFast(masm_);
-  __ jmp(&done);
-
-  __ bind(&index_out_of_range);
-  // When the index is out of range, the spec requires us to return
-  // NaN.
-  __ LoadRoot(result, Heap::kNanValueRootIndex);
-  __ jmp(&done);
-
-  __ bind(&need_conversion);
-  // Move the undefined value into the result register, which will
-  // trigger conversion.
-  __ LoadRoot(result, Heap::kUndefinedValueRootIndex);
-  __ jmp(&done);
-
-  NopRuntimeCallHelper call_helper;
-  generator.GenerateSlow(masm_, NOT_PART_OF_IC_HANDLER, call_helper);
-
-  __ bind(&done);
-  context()->Plug(result);
-}
-
-
-void FullCodeGenerator::EmitStringCharAt(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 2);
-
-  VisitForStackValue(args->at(0));
-  VisitForAccumulatorValue(args->at(1));
-
-  Register object = rbx;
-  Register index = rax;
-  Register scratch = rdx;
-  Register result = rax;
-
-  __ Pop(object);
-
-  Label need_conversion;
-  Label index_out_of_range;
-  Label done;
-  StringCharAtGenerator generator(object,
-                                  index,
-                                  scratch,
-                                  result,
-                                  &need_conversion,
-                                  &need_conversion,
-                                  &index_out_of_range,
-                                  STRING_INDEX_IS_NUMBER);
-  generator.GenerateFast(masm_);
-  __ jmp(&done);
-
-  __ bind(&index_out_of_range);
-  // When the index is out of range, the spec requires us to return
-  // the empty string.
-  __ LoadRoot(result, Heap::kempty_stringRootIndex);
-  __ jmp(&done);
-
-  __ bind(&need_conversion);
-  // Move smi zero into the result register, which will trigger
-  // conversion.
-  __ Move(result, Smi::FromInt(0));
-  __ jmp(&done);
-
-  NopRuntimeCallHelper call_helper;
-  generator.GenerateSlow(masm_, NOT_PART_OF_IC_HANDLER, call_helper);
-
-  __ bind(&done);
-  context()->Plug(result);
-}
-
-
-void FullCodeGenerator::EmitStringAdd(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK_EQ(2, args->length());
-  VisitForStackValue(args->at(0));
-  VisitForAccumulatorValue(args->at(1));
-
-  __ Pop(rdx);
-  StringAddStub stub(isolate(), STRING_ADD_CHECK_BOTH, NOT_TENURED);
-  __ CallStub(&stub);
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitCallFunction(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() >= 2);
-
-  int arg_count = args->length() - 2;  // 2 ~ receiver and function.
-  for (int i = 0; i < arg_count + 1; i++) {
-    VisitForStackValue(args->at(i));
-  }
-  VisitForAccumulatorValue(args->last());  // Function.
-
-  Label runtime, done;
-  // Check for non-function argument (including proxy).
-  __ JumpIfSmi(rax, &runtime);
-  __ CmpObjectType(rax, JS_FUNCTION_TYPE, rbx);
-  __ j(not_equal, &runtime);
-
-  // InvokeFunction requires the function in rdi. Move it in there.
-  __ movp(rdi, result_register());
-  ParameterCount count(arg_count);
-  __ InvokeFunction(rdi, count, CALL_FUNCTION, NullCallWrapper());
-  __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
-  __ jmp(&done);
-
-  __ bind(&runtime);
-  __ Push(rax);
-  __ CallRuntime(Runtime::kCall, args->length());
-  __ bind(&done);
-
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitDefaultConstructorCallSuper(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 2);
-
-  // new.target
-  VisitForStackValue(args->at(0));
-
-  // .this_function
-  VisitForStackValue(args->at(1));
-  __ CallRuntime(Runtime::kGetPrototype, 1);
-  __ Push(result_register());
-
-  // Load original constructor into rcx.
-  __ movp(rcx, Operand(rsp, 1 * kPointerSize));
-
-  // Check if the calling frame is an arguments adaptor frame.
-  Label adaptor_frame, args_set_up, runtime;
-  __ movp(rdx, Operand(rbp, StandardFrameConstants::kCallerFPOffset));
-  __ movp(rbx, Operand(rdx, StandardFrameConstants::kContextOffset));
-  __ Cmp(rbx, Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR));
-  __ j(equal, &adaptor_frame);
-  // default constructor has no arguments, so no adaptor frame means no args.
-  __ movp(rax, Immediate(0));
-  __ jmp(&args_set_up);
-
-  // Copy arguments from adaptor frame.
-  {
-    __ bind(&adaptor_frame);
-    __ movp(rbx, Operand(rdx, ArgumentsAdaptorFrameConstants::kLengthOffset));
-    __ SmiToInteger64(rbx, rbx);
-
-    __ movp(rax, rbx);
-    __ leap(rdx, Operand(rdx, rbx, times_pointer_size,
-                         StandardFrameConstants::kCallerSPOffset));
-    Label loop;
-    __ bind(&loop);
-    __ Push(Operand(rdx, -1 * kPointerSize));
-    __ subp(rdx, Immediate(kPointerSize));
-    __ decp(rbx);
-    __ j(not_zero, &loop);
-  }
-
-  __ bind(&args_set_up);
-  __ movp(rdi, Operand(rsp, rax, times_pointer_size, 0));
-  __ LoadRoot(rbx, Heap::kUndefinedValueRootIndex);
-
-  CallConstructStub stub(isolate(), SUPER_CONSTRUCTOR_CALL);
-  __ call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL);
-
-  __ Drop(1);
-
-  context()->Plug(result_register());
-}
-
-
-void FullCodeGenerator::EmitRegExpConstructResult(CallRuntime* expr) {
-  RegExpConstructResultStub stub(isolate());
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 3);
-  VisitForStackValue(args->at(0));
-  VisitForStackValue(args->at(1));
-  VisitForAccumulatorValue(args->at(2));
-  __ Pop(rbx);
-  __ Pop(rcx);
-  __ CallStub(&stub);
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitGetFromCache(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK_EQ(2, args->length());
-
-  DCHECK_NOT_NULL(args->at(0)->AsLiteral());
-  int cache_id = Smi::cast(*(args->at(0)->AsLiteral()->value()))->value();
-
-  Handle<FixedArray> jsfunction_result_caches(
-      isolate()->native_context()->jsfunction_result_caches());
-  if (jsfunction_result_caches->length() <= cache_id) {
-    __ Abort(kAttemptToUseUndefinedCache);
-    __ LoadRoot(rax, Heap::kUndefinedValueRootIndex);
-    context()->Plug(rax);
-    return;
-  }
-
-  VisitForAccumulatorValue(args->at(1));
-
-  Register key = rax;
-  Register cache = rbx;
-  Register tmp = rcx;
-  __ movp(cache, ContextOperand(rsi, Context::GLOBAL_OBJECT_INDEX));
-  __ movp(cache,
-          FieldOperand(cache, GlobalObject::kNativeContextOffset));
-  __ movp(cache,
-          ContextOperand(cache, Context::JSFUNCTION_RESULT_CACHES_INDEX));
-  __ movp(cache,
-          FieldOperand(cache, FixedArray::OffsetOfElementAt(cache_id)));
-
-  Label done, not_found;
-  STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize == 1);
-  __ movp(tmp, FieldOperand(cache, JSFunctionResultCache::kFingerOffset));
-  // tmp now holds finger offset as a smi.
-  SmiIndex index =
-      __ SmiToIndex(kScratchRegister, tmp, kPointerSizeLog2);
-  __ cmpp(key, FieldOperand(cache,
-                            index.reg,
-                            index.scale,
-                            FixedArray::kHeaderSize));
-  __ j(not_equal, &not_found, Label::kNear);
-  __ movp(rax, FieldOperand(cache,
-                            index.reg,
-                            index.scale,
-                            FixedArray::kHeaderSize + kPointerSize));
-  __ jmp(&done, Label::kNear);
-
-  __ bind(&not_found);
-  // Call runtime to perform the lookup.
-  __ Push(cache);
-  __ Push(key);
-  __ CallRuntime(Runtime::kGetFromCacheRT, 2);
-
-  __ bind(&done);
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitHasCachedArrayIndex(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));
-
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  __ testl(FieldOperand(rax, String::kHashFieldOffset),
-           Immediate(String::kContainsCachedArrayIndexMask));
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  __ j(zero, if_true);
-  __ jmp(if_false);
-
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitGetCachedArrayIndex(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-  VisitForAccumulatorValue(args->at(0));
-
-  __ AssertString(rax);
-
-  __ movl(rax, FieldOperand(rax, String::kHashFieldOffset));
-  DCHECK(String::kHashShift >= kSmiTagSize);
-  __ IndexFromHash(rax, rax);
-
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitFastOneByteArrayJoin(CallRuntime* expr) {
-  Label bailout, return_result, done, one_char_separator, long_separator,
-      non_trivial_array, not_size_one_array, loop,
-      loop_1, loop_1_condition, loop_2, loop_2_entry, loop_3, loop_3_entry;
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 2);
-  // We will leave the separator on the stack until the end of the function.
-  VisitForStackValue(args->at(1));
-  // Load this to rax (= array)
-  VisitForAccumulatorValue(args->at(0));
-  // All aliases of the same register have disjoint lifetimes.
-  Register array = rax;
-  Register elements = no_reg;  // Will be rax.
-
-  Register index = rdx;
-
-  Register string_length = rcx;
-
-  Register string = rsi;
-
-  Register scratch = rbx;
-
-  Register array_length = rdi;
-  Register result_pos = no_reg;  // Will be rdi.
-
-  Operand separator_operand =    Operand(rsp, 2 * kPointerSize);
-  Operand result_operand =       Operand(rsp, 1 * kPointerSize);
-  Operand array_length_operand = Operand(rsp, 0 * kPointerSize);
-  // Separator operand is already pushed. Make room for the two
-  // other stack fields, and clear the direction flag in anticipation
-  // of calling CopyBytes.
-  __ subp(rsp, Immediate(2 * kPointerSize));
-  __ cld();
-  // Check that the array is a JSArray
-  __ JumpIfSmi(array, &bailout);
-  __ CmpObjectType(array, JS_ARRAY_TYPE, scratch);
-  __ j(not_equal, &bailout);
-
-  // Check that the array has fast elements.
-  __ CheckFastElements(scratch, &bailout);
-
-  // Array has fast elements, so its length must be a smi.
-  // If the array has length zero, return the empty string.
-  __ movp(array_length, FieldOperand(array, JSArray::kLengthOffset));
-  __ SmiCompare(array_length, Smi::FromInt(0));
-  __ j(not_zero, &non_trivial_array);
-  __ LoadRoot(rax, Heap::kempty_stringRootIndex);
-  __ jmp(&return_result);
-
-  // Save the array length on the stack.
-  __ bind(&non_trivial_array);
-  __ SmiToInteger32(array_length, array_length);
-  __ movl(array_length_operand, array_length);
-
-  // Save the FixedArray containing array's elements.
-  // End of array's live range.
-  elements = array;
-  __ movp(elements, FieldOperand(array, JSArray::kElementsOffset));
-  array = no_reg;
-
-
-  // Check that all array elements are sequential one-byte strings, and
-  // accumulate the sum of their lengths, as a smi-encoded value.
-  __ Set(index, 0);
-  __ Set(string_length, 0);
-  // Loop condition: while (index < array_length).
-  // Live loop registers: index(int32), array_length(int32), string(String*),
-  //                      scratch, string_length(int32), elements(FixedArray*).
-  if (generate_debug_code_) {
-    __ cmpp(index, array_length);
-    __ Assert(below, kNoEmptyArraysHereInEmitFastOneByteArrayJoin);
-  }
-  __ bind(&loop);
-  __ movp(string, FieldOperand(elements,
-                               index,
-                               times_pointer_size,
-                               FixedArray::kHeaderSize));
-  __ JumpIfSmi(string, &bailout);
-  __ movp(scratch, FieldOperand(string, HeapObject::kMapOffset));
-  __ movzxbl(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset));
-  __ andb(scratch, Immediate(
-      kIsNotStringMask | kStringEncodingMask | kStringRepresentationMask));
-  __ cmpb(scratch, Immediate(kStringTag | kOneByteStringTag | kSeqStringTag));
-  __ j(not_equal, &bailout);
-  __ AddSmiField(string_length,
-                 FieldOperand(string, SeqOneByteString::kLengthOffset));
-  __ j(overflow, &bailout);
-  __ incl(index);
-  __ cmpl(index, array_length);
-  __ j(less, &loop);
-
-  // Live registers:
-  // string_length: Sum of string lengths.
-  // elements: FixedArray of strings.
-  // index: Array length.
-  // array_length: Array length.
-
-  // If array_length is 1, return elements[0], a string.
-  __ cmpl(array_length, Immediate(1));
-  __ j(not_equal, &not_size_one_array);
-  __ movp(rax, FieldOperand(elements, FixedArray::kHeaderSize));
-  __ jmp(&return_result);
-
-  __ bind(&not_size_one_array);
-
-  // End of array_length live range.
-  result_pos = array_length;
-  array_length = no_reg;
-
-  // Live registers:
-  // string_length: Sum of string lengths.
-  // elements: FixedArray of strings.
-  // index: Array length.
-
-  // Check that the separator is a sequential one-byte string.
-  __ movp(string, separator_operand);
-  __ JumpIfSmi(string, &bailout);
-  __ movp(scratch, FieldOperand(string, HeapObject::kMapOffset));
-  __ movzxbl(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset));
-  __ andb(scratch, Immediate(
-      kIsNotStringMask | kStringEncodingMask | kStringRepresentationMask));
-  __ cmpb(scratch, Immediate(kStringTag | kOneByteStringTag | kSeqStringTag));
-  __ j(not_equal, &bailout);
-
-  // Live registers:
-  // string_length: Sum of string lengths.
-  // elements: FixedArray of strings.
-  // index: Array length.
-  // string: Separator string.
-
-  // Add (separator length times (array_length - 1)) to string_length.
-  __ SmiToInteger32(scratch,
-                    FieldOperand(string, SeqOneByteString::kLengthOffset));
-  __ decl(index);
-  __ imull(scratch, index);
-  __ j(overflow, &bailout);
-  __ addl(string_length, scratch);
-  __ j(overflow, &bailout);
-
-  // Live registers and stack values:
-  //   string_length: Total length of result string.
-  //   elements: FixedArray of strings.
-  __ AllocateOneByteString(result_pos, string_length, scratch, index, string,
-                           &bailout);
-  __ movp(result_operand, result_pos);
-  __ leap(result_pos, FieldOperand(result_pos, SeqOneByteString::kHeaderSize));
-
-  __ movp(string, separator_operand);
-  __ SmiCompare(FieldOperand(string, SeqOneByteString::kLengthOffset),
-                Smi::FromInt(1));
-  __ j(equal, &one_char_separator);
-  __ j(greater, &long_separator);
-
-
-  // Empty separator case:
-  __ Set(index, 0);
-  __ movl(scratch, array_length_operand);
-  __ jmp(&loop_1_condition);
-  // Loop condition: while (index < array_length).
-  __ bind(&loop_1);
-  // Each iteration of the loop concatenates one string to the result.
-  // Live values in registers:
-  //   index: which element of the elements array we are adding to the result.
-  //   result_pos: the position to which we are currently copying characters.
-  //   elements: the FixedArray of strings we are joining.
-  //   scratch: array length.
-
-  // Get string = array[index].
-  __ movp(string, FieldOperand(elements, index,
-                               times_pointer_size,
-                               FixedArray::kHeaderSize));
-  __ SmiToInteger32(string_length,
-                    FieldOperand(string, String::kLengthOffset));
-  __ leap(string,
-         FieldOperand(string, SeqOneByteString::kHeaderSize));
-  __ CopyBytes(result_pos, string, string_length);
-  __ incl(index);
-  __ bind(&loop_1_condition);
-  __ cmpl(index, scratch);
-  __ j(less, &loop_1);  // Loop while (index < array_length).
-  __ jmp(&done);
-
-  // Generic bailout code used from several places.
-  __ bind(&bailout);
-  __ LoadRoot(rax, Heap::kUndefinedValueRootIndex);
-  __ jmp(&return_result);
-
-
-  // One-character separator case
-  __ bind(&one_char_separator);
-  // Get the separator one-byte character value.
-  // Register "string" holds the separator.
-  __ movzxbl(scratch, FieldOperand(string, SeqOneByteString::kHeaderSize));
-  __ Set(index, 0);
-  // Jump into the loop after the code that copies the separator, so the first
-  // element is not preceded by a separator
-  __ jmp(&loop_2_entry);
-  // Loop condition: while (index < length).
-  __ bind(&loop_2);
-  // Each iteration of the loop concatenates one string to the result.
-  // Live values in registers:
-  //   elements: The FixedArray of strings we are joining.
-  //   index: which element of the elements array we are adding to the result.
-  //   result_pos: the position to which we are currently copying characters.
-  //   scratch: Separator character.
-
-  // Copy the separator character to the result.
-  __ movb(Operand(result_pos, 0), scratch);
-  __ incp(result_pos);
-
-  __ bind(&loop_2_entry);
-  // Get string = array[index].
-  __ movp(string, FieldOperand(elements, index,
-                               times_pointer_size,
-                               FixedArray::kHeaderSize));
-  __ SmiToInteger32(string_length,
-                    FieldOperand(string, String::kLengthOffset));
-  __ leap(string,
-         FieldOperand(string, SeqOneByteString::kHeaderSize));
-  __ CopyBytes(result_pos, string, string_length);
-  __ incl(index);
-  __ cmpl(index, array_length_operand);
-  __ j(less, &loop_2);  // End while (index < length).
-  __ jmp(&done);
-
-
-  // Long separator case (separator is more than one character).
-  __ bind(&long_separator);
-
-  // Make elements point to end of elements array, and index
-  // count from -array_length to zero, so we don't need to maintain
-  // a loop limit.
-  __ movl(index, array_length_operand);
-  __ leap(elements, FieldOperand(elements, index, times_pointer_size,
-                                FixedArray::kHeaderSize));
-  __ negq(index);
-
-  // Replace separator string with pointer to its first character, and
-  // make scratch be its length.
-  __ movp(string, separator_operand);
-  __ SmiToInteger32(scratch,
-                    FieldOperand(string, String::kLengthOffset));
-  __ leap(string,
-         FieldOperand(string, SeqOneByteString::kHeaderSize));
-  __ movp(separator_operand, string);
-
-  // Jump into the loop after the code that copies the separator, so the first
-  // element is not preceded by a separator
-  __ jmp(&loop_3_entry);
-  // Loop condition: while (index < length).
-  __ bind(&loop_3);
-  // Each iteration of the loop concatenates one string to the result.
-  // Live values in registers:
-  //   index: which element of the elements array we are adding to the result.
-  //   result_pos: the position to which we are currently copying characters.
-  //   scratch: Separator length.
-  //   separator_operand (rsp[0x10]): Address of first char of separator.
-
-  // Copy the separator to the result.
-  __ movp(string, separator_operand);
-  __ movl(string_length, scratch);
-  __ CopyBytes(result_pos, string, string_length, 2);
-
-  __ bind(&loop_3_entry);
-  // Get string = array[index].
-  __ movp(string, Operand(elements, index, times_pointer_size, 0));
-  __ SmiToInteger32(string_length,
-                    FieldOperand(string, String::kLengthOffset));
-  __ leap(string,
-         FieldOperand(string, SeqOneByteString::kHeaderSize));
-  __ CopyBytes(result_pos, string, string_length);
-  __ incq(index);
-  __ j(not_equal, &loop_3);  // Loop while (index < 0).
-
-  __ bind(&done);
-  __ movp(rax, result_operand);
-
-  __ bind(&return_result);
-  // Drop temp values from the stack, and restore context register.
-  __ addp(rsp, Immediate(3 * kPointerSize));
-  __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitDebugIsActive(CallRuntime* expr) {
-  DCHECK(expr->arguments()->length() == 0);
-  ExternalReference debug_is_active =
-      ExternalReference::debug_is_active_address(isolate());
-  __ Move(kScratchRegister, debug_is_active);
-  __ movzxbp(rax, Operand(kScratchRegister, 0));
-  __ Integer32ToSmi(rax, rax);
-  context()->Plug(rax);
-}
-
-
-void FullCodeGenerator::EmitLoadJSRuntimeFunction(CallRuntime* expr) {
-  // Push the builtins object as receiver.
-  __ movp(rax, GlobalObjectOperand());
-  __ Push(FieldOperand(rax, GlobalObject::kBuiltinsOffset));
-
-  // Load the function from the receiver.
-  __ movp(LoadDescriptor::ReceiverRegister(), Operand(rsp, 0));
-  __ Move(LoadDescriptor::NameRegister(), expr->name());
-  __ Move(LoadDescriptor::SlotRegister(),
-          SmiFromSlot(expr->CallRuntimeFeedbackSlot()));
-  CallLoadIC(NOT_INSIDE_TYPEOF);
-}
-
-
-void FullCodeGenerator::EmitCallJSRuntimeFunction(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  int arg_count = args->length();
-
-  SetCallPosition(expr, arg_count);
-  CallFunctionStub stub(isolate(), arg_count, NO_CALL_FUNCTION_FLAGS);
-  __ movp(rdi, Operand(rsp, (arg_count + 1) * kPointerSize));
-  __ CallStub(&stub);
-}
-
-
-void FullCodeGenerator::VisitCallRuntime(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  int arg_count = args->length();
-
-  if (expr->is_jsruntime()) {
-    Comment cmnt(masm_, "[ CallRuntime");
-
-    EmitLoadJSRuntimeFunction(expr);
-
-    // Push the target function under the receiver.
-    __ Push(Operand(rsp, 0));
-    __ movp(Operand(rsp, kPointerSize), rax);
-
-    // Push the arguments ("left-to-right").
-    for (int i = 0; i < arg_count; i++) {
-      VisitForStackValue(args->at(i));
-    }
-
-    PrepareForBailoutForId(expr->CallId(), NO_REGISTERS);
-    EmitCallJSRuntimeFunction(expr);
-
-    // Restore context register.
-    __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
-    context()->DropAndPlug(1, rax);
-
-  } else {
-    const Runtime::Function* function = expr->function();
-    switch (function->function_id) {
-#define CALL_INTRINSIC_GENERATOR(Name)     \
-  case Runtime::kInline##Name: {           \
-    Comment cmnt(masm_, "[ Inline" #Name); \
-    return Emit##Name(expr);               \
-  }
-      FOR_EACH_FULL_CODE_INTRINSIC(CALL_INTRINSIC_GENERATOR)
-#undef CALL_INTRINSIC_GENERATOR
-      default: {
-        Comment cmnt(masm_, "[ CallRuntime for unhandled intrinsic");
-        // Push the arguments ("left-to-right").
-        for (int i = 0; i < arg_count; i++) {
-          VisitForStackValue(args->at(i));
-        }
-
-        // Call the C runtime.
-        PrepareForBailoutForId(expr->CallId(), NO_REGISTERS);
-        __ CallRuntime(function, arg_count);
-        context()->Plug(rax);
-      }
-    }
-  }
-}
-
-
-void FullCodeGenerator::VisitUnaryOperation(UnaryOperation* expr) {
-  switch (expr->op()) {
-    case Token::DELETE: {
-      Comment cmnt(masm_, "[ UnaryOperation (DELETE)");
-      Property* property = expr->expression()->AsProperty();
-      VariableProxy* proxy = expr->expression()->AsVariableProxy();
-
-      if (property != NULL) {
-        VisitForStackValue(property->obj());
-        VisitForStackValue(property->key());
-        __ Push(Smi::FromInt(language_mode()));
-        __ InvokeBuiltin(Builtins::DELETE, CALL_FUNCTION);
-        context()->Plug(rax);
-      } else if (proxy != NULL) {
-        Variable* var = proxy->var();
-        // Delete of an unqualified identifier is disallowed in strict mode but
-        // "delete this" is allowed.
-        bool is_this = var->HasThisName(isolate());
-        DCHECK(is_sloppy(language_mode()) || is_this);
-        if (var->IsUnallocatedOrGlobalSlot()) {
-          __ Push(GlobalObjectOperand());
-          __ Push(var->name());
-          __ Push(Smi::FromInt(SLOPPY));
-          __ InvokeBuiltin(Builtins::DELETE, CALL_FUNCTION);
-          context()->Plug(rax);
-        } else if (var->IsStackAllocated() || var->IsContextSlot()) {
-          // Result of deleting non-global variables is false.  'this' is
-          // not really a variable, though we implement it as one.  The
-          // subexpression does not have side effects.
-          context()->Plug(is_this);
-        } else {
-          // Non-global variable.  Call the runtime to try to delete from the
-          // context where the variable was introduced.
-          __ Push(context_register());
-          __ Push(var->name());
-          __ CallRuntime(Runtime::kDeleteLookupSlot, 2);
-          context()->Plug(rax);
-        }
-      } else {
-        // Result of deleting non-property, non-variable reference is true.
-        // The subexpression may have side effects.
-        VisitForEffect(expr->expression());
-        context()->Plug(true);
-      }
-      break;
-    }
-
-    case Token::VOID: {
-      Comment cmnt(masm_, "[ UnaryOperation (VOID)");
-      VisitForEffect(expr->expression());
-      context()->Plug(Heap::kUndefinedValueRootIndex);
-      break;
-    }
-
-    case Token::NOT: {
-      Comment cmnt(masm_, "[ UnaryOperation (NOT)");
-      if (context()->IsEffect()) {
-        // Unary NOT has no side effects so it's only necessary to visit the
-        // subexpression.  Match the optimizing compiler by not branching.
-        VisitForEffect(expr->expression());
-      } else if (context()->IsTest()) {
-        const TestContext* test = TestContext::cast(context());
-        // The labels are swapped for the recursive call.
-        VisitForControl(expr->expression(),
-                        test->false_label(),
-                        test->true_label(),
-                        test->fall_through());
-        context()->Plug(test->true_label(), test->false_label());
-      } else {
-        // We handle value contexts explicitly rather than simply visiting
-        // for control and plugging the control flow into the context,
-        // because we need to prepare a pair of extra administrative AST ids
-        // for the optimizing compiler.
-        DCHECK(context()->IsAccumulatorValue() || context()->IsStackValue());
-        Label materialize_true, materialize_false, done;
-        VisitForControl(expr->expression(),
-                        &materialize_false,
-                        &materialize_true,
-                        &materialize_true);
-        __ bind(&materialize_true);
-        PrepareForBailoutForId(expr->MaterializeTrueId(), NO_REGISTERS);
-        if (context()->IsAccumulatorValue()) {
-          __ LoadRoot(rax, Heap::kTrueValueRootIndex);
-        } else {
-          __ PushRoot(Heap::kTrueValueRootIndex);
-        }
-        __ jmp(&done, Label::kNear);
-        __ bind(&materialize_false);
-        PrepareForBailoutForId(expr->MaterializeFalseId(), NO_REGISTERS);
-        if (context()->IsAccumulatorValue()) {
-          __ LoadRoot(rax, Heap::kFalseValueRootIndex);
-        } else {
-          __ PushRoot(Heap::kFalseValueRootIndex);
-        }
-        __ bind(&done);
-      }
-      break;
-    }
-
-    case Token::TYPEOF: {
-      Comment cmnt(masm_, "[ UnaryOperation (TYPEOF)");
-      {
-        AccumulatorValueContext context(this);
-        VisitForTypeofValue(expr->expression());
-      }
-      __ movp(rbx, rax);
-      TypeofStub typeof_stub(isolate());
-      __ CallStub(&typeof_stub);
-      context()->Plug(rax);
-      break;
-    }
-
-    default:
-      UNREACHABLE();
-  }
-}
-
-
-void FullCodeGenerator::VisitCountOperation(CountOperation* expr) {
-  DCHECK(expr->expression()->IsValidReferenceExpressionOrThis());
-
-  Comment cmnt(masm_, "[ CountOperation");
-
-  Property* prop = expr->expression()->AsProperty();
-  LhsKind assign_type = Property::GetAssignType(prop);
-
-  // Evaluate expression and get value.
-  if (assign_type == VARIABLE) {
-    DCHECK(expr->expression()->AsVariableProxy()->var() != NULL);
-    AccumulatorValueContext context(this);
-    EmitVariableLoad(expr->expression()->AsVariableProxy());
-  } else {
-    // Reserve space for result of postfix operation.
-    if (expr->is_postfix() && !context()->IsEffect()) {
-      __ Push(Smi::FromInt(0));
-    }
-    switch (assign_type) {
-      case NAMED_PROPERTY: {
-        VisitForStackValue(prop->obj());
-        __ movp(LoadDescriptor::ReceiverRegister(), Operand(rsp, 0));
-        EmitNamedPropertyLoad(prop);
-        break;
-      }
-
-      case NAMED_SUPER_PROPERTY: {
-        VisitForStackValue(prop->obj()->AsSuperPropertyReference()->this_var());
-        VisitForAccumulatorValue(
-            prop->obj()->AsSuperPropertyReference()->home_object());
-        __ Push(result_register());
-        __ Push(MemOperand(rsp, kPointerSize));
-        __ Push(result_register());
-        EmitNamedSuperPropertyLoad(prop);
-        break;
-      }
-
-      case KEYED_SUPER_PROPERTY: {
-        VisitForStackValue(prop->obj()->AsSuperPropertyReference()->this_var());
-        VisitForStackValue(
-            prop->obj()->AsSuperPropertyReference()->home_object());
-        VisitForAccumulatorValue(prop->key());
-        __ Push(result_register());
-        __ Push(MemOperand(rsp, 2 * kPointerSize));
-        __ Push(MemOperand(rsp, 2 * kPointerSize));
-        __ Push(result_register());
-        EmitKeyedSuperPropertyLoad(prop);
-        break;
-      }
-
-      case KEYED_PROPERTY: {
-        VisitForStackValue(prop->obj());
-        VisitForStackValue(prop->key());
-        // Leave receiver on stack
-        __ movp(LoadDescriptor::ReceiverRegister(), Operand(rsp, kPointerSize));
-        // Copy of key, needed for later store.
-        __ movp(LoadDescriptor::NameRegister(), Operand(rsp, 0));
-        EmitKeyedPropertyLoad(prop);
-        break;
-      }
-
-      case VARIABLE:
-        UNREACHABLE();
-    }
-  }
-
-  // We need a second deoptimization point after loading the value
-  // in case evaluating the property load my have a side effect.
-  if (assign_type == VARIABLE) {
-    PrepareForBailout(expr->expression(), TOS_REG);
-  } else {
-    PrepareForBailoutForId(prop->LoadId(), TOS_REG);
-  }
-
-  // Inline smi case if we are in a loop.
-  Label done, stub_call;
-  JumpPatchSite patch_site(masm_);
-  if (ShouldInlineSmiCase(expr->op())) {
-    Label slow;
-    patch_site.EmitJumpIfNotSmi(rax, &slow, Label::kNear);
-
-    // Save result for postfix expressions.
-    if (expr->is_postfix()) {
-      if (!context()->IsEffect()) {
-        // Save the result on the stack. If we have a named or keyed property
-        // we store the result under the receiver that is currently on top
-        // of the stack.
-        switch (assign_type) {
-          case VARIABLE:
-            __ Push(rax);
-            break;
-          case NAMED_PROPERTY:
-            __ movp(Operand(rsp, kPointerSize), rax);
-            break;
-          case NAMED_SUPER_PROPERTY:
-            __ movp(Operand(rsp, 2 * kPointerSize), rax);
-            break;
-          case KEYED_PROPERTY:
-            __ movp(Operand(rsp, 2 * kPointerSize), rax);
-            break;
-          case KEYED_SUPER_PROPERTY:
-            __ movp(Operand(rsp, 3 * kPointerSize), rax);
-            break;
-        }
-      }
-    }
-
-    SmiOperationConstraints constraints =
-        SmiOperationConstraint::kPreserveSourceRegister |
-        SmiOperationConstraint::kBailoutOnNoOverflow;
-    if (expr->op() == Token::INC) {
-      __ SmiAddConstant(rax, rax, Smi::FromInt(1), constraints, &done,
-                        Label::kNear);
-    } else {
-      __ SmiSubConstant(rax, rax, Smi::FromInt(1), constraints, &done,
-                        Label::kNear);
-    }
-    __ jmp(&stub_call, Label::kNear);
-    __ bind(&slow);
-  }
-  if (!is_strong(language_mode())) {
-    ToNumberStub convert_stub(isolate());
-    __ CallStub(&convert_stub);
-    PrepareForBailoutForId(expr->ToNumberId(), TOS_REG);
-  }
-
-  // Save result for postfix expressions.
-  if (expr->is_postfix()) {
-    if (!context()->IsEffect()) {
-      // Save the result on the stack. If we have a named or keyed property
-      // we store the result under the receiver that is currently on top
-      // of the stack.
-      switch (assign_type) {
-        case VARIABLE:
-          __ Push(rax);
-          break;
-        case NAMED_PROPERTY:
-          __ movp(Operand(rsp, kPointerSize), rax);
-          break;
-        case NAMED_SUPER_PROPERTY:
-          __ movp(Operand(rsp, 2 * kPointerSize), rax);
-          break;
-        case KEYED_PROPERTY:
-          __ movp(Operand(rsp, 2 * kPointerSize), rax);
-          break;
-        case KEYED_SUPER_PROPERTY:
-          __ movp(Operand(rsp, 3 * kPointerSize), rax);
-          break;
-      }
-    }
-  }
-
-  SetExpressionPosition(expr);
-
-  // Call stub for +1/-1.
-  __ bind(&stub_call);
-  __ movp(rdx, rax);
-  __ Move(rax, Smi::FromInt(1));
-  Handle<Code> code = CodeFactory::BinaryOpIC(isolate(), expr->binary_op(),
-                                              strength(language_mode())).code();
-  CallIC(code, expr->CountBinOpFeedbackId());
-  patch_site.EmitPatchInfo();
-  __ bind(&done);
-
-  if (is_strong(language_mode())) {
-    PrepareForBailoutForId(expr->ToNumberId(), TOS_REG);
-  }
-  // Store the value returned in rax.
-  switch (assign_type) {
-    case VARIABLE:
-      if (expr->is_postfix()) {
-        // Perform the assignment as if via '='.
-        { EffectContext context(this);
-          EmitVariableAssignment(expr->expression()->AsVariableProxy()->var(),
-                                 Token::ASSIGN, expr->CountSlot());
-          PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
-          context.Plug(rax);
-        }
-        // For all contexts except kEffect: We have the result on
-        // top of the stack.
-        if (!context()->IsEffect()) {
-          context()->PlugTOS();
-        }
-      } else {
-        // Perform the assignment as if via '='.
-        EmitVariableAssignment(expr->expression()->AsVariableProxy()->var(),
-                               Token::ASSIGN, expr->CountSlot());
-        PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
-        context()->Plug(rax);
-      }
-      break;
-    case NAMED_PROPERTY: {
-      __ Move(StoreDescriptor::NameRegister(),
-              prop->key()->AsLiteral()->value());
-      __ Pop(StoreDescriptor::ReceiverRegister());
-      if (FLAG_vector_stores) {
-        EmitLoadStoreICSlot(expr->CountSlot());
-        CallStoreIC();
-      } else {
-        CallStoreIC(expr->CountStoreFeedbackId());
-      }
-      PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
-      if (expr->is_postfix()) {
-        if (!context()->IsEffect()) {
-          context()->PlugTOS();
-        }
-      } else {
-        context()->Plug(rax);
-      }
-      break;
-    }
-    case NAMED_SUPER_PROPERTY: {
-      EmitNamedSuperPropertyStore(prop);
-      if (expr->is_postfix()) {
-        if (!context()->IsEffect()) {
-          context()->PlugTOS();
-        }
-      } else {
-        context()->Plug(rax);
-      }
-      break;
-    }
-    case KEYED_SUPER_PROPERTY: {
-      EmitKeyedSuperPropertyStore(prop);
-      if (expr->is_postfix()) {
-        if (!context()->IsEffect()) {
-          context()->PlugTOS();
-        }
-      } else {
-        context()->Plug(rax);
-      }
-      break;
-    }
-    case KEYED_PROPERTY: {
-      __ Pop(StoreDescriptor::NameRegister());
-      __ Pop(StoreDescriptor::ReceiverRegister());
-      Handle<Code> ic =
-          CodeFactory::KeyedStoreIC(isolate(), language_mode()).code();
-      if (FLAG_vector_stores) {
-        EmitLoadStoreICSlot(expr->CountSlot());
-        CallIC(ic);
-      } else {
-        CallIC(ic, expr->CountStoreFeedbackId());
-      }
-      PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
-      if (expr->is_postfix()) {
-        if (!context()->IsEffect()) {
-          context()->PlugTOS();
-        }
-      } else {
-        context()->Plug(rax);
-      }
-      break;
-    }
-  }
-}
-
-
-void FullCodeGenerator::EmitLiteralCompareTypeof(Expression* expr,
-                                                 Expression* sub_expr,
-                                                 Handle<String> check) {
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  { AccumulatorValueContext context(this);
-    VisitForTypeofValue(sub_expr);
-  }
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-
-  Factory* factory = isolate()->factory();
-  if (String::Equals(check, factory->number_string())) {
-    __ JumpIfSmi(rax, if_true);
-    __ movp(rax, FieldOperand(rax, HeapObject::kMapOffset));
-    __ CompareRoot(rax, Heap::kHeapNumberMapRootIndex);
-    Split(equal, if_true, if_false, fall_through);
-  } else if (String::Equals(check, factory->string_string())) {
-    __ JumpIfSmi(rax, if_false);
-    // Check for undetectable objects => false.
-    __ CmpObjectType(rax, FIRST_NONSTRING_TYPE, rdx);
-    __ j(above_equal, if_false);
-    __ testb(FieldOperand(rdx, Map::kBitFieldOffset),
-             Immediate(1 << Map::kIsUndetectable));
-    Split(zero, if_true, if_false, fall_through);
-  } else if (String::Equals(check, factory->symbol_string())) {
-    __ JumpIfSmi(rax, if_false);
-    __ CmpObjectType(rax, SYMBOL_TYPE, rdx);
-    Split(equal, if_true, if_false, fall_through);
-  } else if (String::Equals(check, factory->float32x4_string())) {
-    __ JumpIfSmi(rax, if_false);
-    __ CmpObjectType(rax, FLOAT32X4_TYPE, rdx);
-    Split(equal, if_true, if_false, fall_through);
-  } else if (String::Equals(check, factory->boolean_string())) {
-    __ CompareRoot(rax, Heap::kTrueValueRootIndex);
-    __ j(equal, if_true);
-    __ CompareRoot(rax, Heap::kFalseValueRootIndex);
-    Split(equal, if_true, if_false, fall_through);
-  } else if (String::Equals(check, factory->undefined_string())) {
-    __ CompareRoot(rax, Heap::kUndefinedValueRootIndex);
-    __ j(equal, if_true);
-    __ JumpIfSmi(rax, if_false);
-    // Check for undetectable objects => true.
-    __ movp(rdx, FieldOperand(rax, HeapObject::kMapOffset));
-    __ testb(FieldOperand(rdx, Map::kBitFieldOffset),
-             Immediate(1 << Map::kIsUndetectable));
-    Split(not_zero, if_true, if_false, fall_through);
-  } else if (String::Equals(check, factory->function_string())) {
-    __ JumpIfSmi(rax, if_false);
-    STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2);
-    __ CmpObjectType(rax, JS_FUNCTION_TYPE, rdx);
-    __ j(equal, if_true);
-    __ CmpInstanceType(rdx, JS_FUNCTION_PROXY_TYPE);
-    Split(equal, if_true, if_false, fall_through);
-  } else if (String::Equals(check, factory->object_string())) {
-    __ JumpIfSmi(rax, if_false);
-    __ CompareRoot(rax, Heap::kNullValueRootIndex);
-    __ j(equal, if_true);
-    __ CmpObjectType(rax, FIRST_NONCALLABLE_SPEC_OBJECT_TYPE, rdx);
-    __ j(below, if_false);
-    __ CmpInstanceType(rdx, LAST_NONCALLABLE_SPEC_OBJECT_TYPE);
-    __ j(above, if_false);
-    // Check for undetectable objects => false.
-    __ testb(FieldOperand(rdx, Map::kBitFieldOffset),
-             Immediate(1 << Map::kIsUndetectable));
-    Split(zero, if_true, if_false, fall_through);
-  } else {
-    if (if_false != fall_through) __ jmp(if_false);
-  }
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::VisitCompareOperation(CompareOperation* expr) {
-  Comment cmnt(masm_, "[ CompareOperation");
-  SetExpressionPosition(expr);
-
-  // First we try a fast inlined version of the compare when one of
-  // the operands is a literal.
-  if (TryLiteralCompare(expr)) return;
-
-  // Always perform the comparison for its control flow.  Pack the result
-  // into the expression's context after the comparison is performed.
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  Token::Value op = expr->op();
-  VisitForStackValue(expr->left());
-  switch (op) {
-    case Token::IN:
-      VisitForStackValue(expr->right());
-      __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION);
-      PrepareForBailoutBeforeSplit(expr, false, NULL, NULL);
-      __ CompareRoot(rax, Heap::kTrueValueRootIndex);
-      Split(equal, if_true, if_false, fall_through);
-      break;
-
-    case Token::INSTANCEOF: {
-      VisitForStackValue(expr->right());
-      InstanceofStub stub(isolate(), InstanceofStub::kNoFlags);
-      __ CallStub(&stub);
-      PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-      __ testp(rax, rax);
-       // The stub returns 0 for true.
-      Split(zero, if_true, if_false, fall_through);
-      break;
-    }
-
-    default: {
-      VisitForAccumulatorValue(expr->right());
-      Condition cc = CompareIC::ComputeCondition(op);
-      __ Pop(rdx);
-
-      bool inline_smi_code = ShouldInlineSmiCase(op);
-      JumpPatchSite patch_site(masm_);
-      if (inline_smi_code) {
-        Label slow_case;
-        __ movp(rcx, rdx);
-        __ orp(rcx, rax);
-        patch_site.EmitJumpIfNotSmi(rcx, &slow_case, Label::kNear);
-        __ cmpp(rdx, rax);
-        Split(cc, if_true, if_false, NULL);
-        __ bind(&slow_case);
-      }
-
-      Handle<Code> ic = CodeFactory::CompareIC(
-                            isolate(), op, strength(language_mode())).code();
-      CallIC(ic, expr->CompareOperationFeedbackId());
-      patch_site.EmitPatchInfo();
-
-      PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-      __ testp(rax, rax);
-      Split(cc, if_true, if_false, fall_through);
-    }
-  }
-
-  // Convert the result of the comparison into one expected for this
-  // expression's context.
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::EmitLiteralCompareNil(CompareOperation* expr,
-                                              Expression* sub_expr,
-                                              NilValue nil) {
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  VisitForAccumulatorValue(sub_expr);
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  if (expr->op() == Token::EQ_STRICT) {
-    Heap::RootListIndex nil_value = nil == kNullValue ?
-        Heap::kNullValueRootIndex :
-        Heap::kUndefinedValueRootIndex;
-    __ CompareRoot(rax, nil_value);
-    Split(equal, if_true, if_false, fall_through);
-  } else {
-    Handle<Code> ic = CompareNilICStub::GetUninitialized(isolate(), nil);
-    CallIC(ic, expr->CompareOperationFeedbackId());
-    __ testp(rax, rax);
-    Split(not_zero, if_true, if_false, fall_through);
-  }
-  context()->Plug(if_true, if_false);
-}
-
-
-void FullCodeGenerator::VisitThisFunction(ThisFunction* expr) {
-  __ movp(rax, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
-  context()->Plug(rax);
-}
-
-
-Register FullCodeGenerator::result_register() {
-  return rax;
-}
-
-
-Register FullCodeGenerator::context_register() {
-  return rsi;
-}
-
-
-void FullCodeGenerator::StoreToFrameField(int frame_offset, Register value) {
-  DCHECK(IsAligned(frame_offset, kPointerSize));
-  __ movp(Operand(rbp, frame_offset), value);
-}
-
-
-void FullCodeGenerator::LoadContextField(Register dst, int context_index) {
-  __ movp(dst, ContextOperand(rsi, context_index));
-}
-
-
-void FullCodeGenerator::PushFunctionArgumentForContextAllocation() {
-  Scope* declaration_scope = scope()->DeclarationScope();
-  if (declaration_scope->is_script_scope() ||
-      declaration_scope->is_module_scope()) {
-    // Contexts nested in the native context have a canonical empty function
-    // as their closure, not the anonymous closure containing the global
-    // code.  Pass a smi sentinel and let the runtime look up the empty
-    // function.
-    __ Push(Smi::FromInt(0));
-  } else if (declaration_scope->is_eval_scope()) {
-    // Contexts created by a call to eval have the same closure as the
-    // context calling eval, not the anonymous closure containing the eval
-    // code.  Fetch it from the context.
-    __ Push(ContextOperand(rsi, Context::CLOSURE_INDEX));
-  } else {
-    DCHECK(declaration_scope->is_function_scope());
-    __ Push(Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
-  }
-}
-
-
-// ----------------------------------------------------------------------------
-// Non-local control flow support.
-
-
-void FullCodeGenerator::EnterFinallyBlock() {
-  DCHECK(!result_register().is(rdx));
-  DCHECK(!result_register().is(rcx));
-  // Cook return address on top of stack (smi encoded Code* delta)
-  __ PopReturnAddressTo(rdx);
-  __ Move(rcx, masm_->CodeObject());
-  __ subp(rdx, rcx);
-  __ Integer32ToSmi(rdx, rdx);
-  __ Push(rdx);
-
-  // Store result register while executing finally block.
-  __ Push(result_register());
-
-  // Store pending message while executing finally block.
-  ExternalReference pending_message_obj =
-      ExternalReference::address_of_pending_message_obj(isolate());
-  __ Load(rdx, pending_message_obj);
-  __ Push(rdx);
-
-  ClearPendingMessage();
-}
-
-
-void FullCodeGenerator::ExitFinallyBlock() {
-  DCHECK(!result_register().is(rdx));
-  DCHECK(!result_register().is(rcx));
-  // Restore pending message from stack.
-  __ Pop(rdx);
-  ExternalReference pending_message_obj =
-      ExternalReference::address_of_pending_message_obj(isolate());
-  __ Store(pending_message_obj, rdx);
-
-  // Restore result register from stack.
-  __ Pop(result_register());
-
-  // Uncook return address.
-  __ Pop(rdx);
-  __ SmiToInteger32(rdx, rdx);
-  __ Move(rcx, masm_->CodeObject());
-  __ addp(rdx, rcx);
-  __ jmp(rdx);
-}
-
-
-void FullCodeGenerator::ClearPendingMessage() {
-  DCHECK(!result_register().is(rdx));
-  ExternalReference pending_message_obj =
-      ExternalReference::address_of_pending_message_obj(isolate());
-  __ LoadRoot(rdx, Heap::kTheHoleValueRootIndex);
-  __ Store(pending_message_obj, rdx);
-}
-
-
-void FullCodeGenerator::EmitLoadStoreICSlot(FeedbackVectorICSlot slot) {
-  DCHECK(FLAG_vector_stores && !slot.IsInvalid());
-  __ Move(VectorStoreICTrampolineDescriptor::SlotRegister(), SmiFromSlot(slot));
-}
-
-
-#undef __
-
-
-static const byte kJnsInstruction = 0x79;
-static const byte kNopByteOne = 0x66;
-static const byte kNopByteTwo = 0x90;
-#ifdef DEBUG
-static const byte kCallInstruction = 0xe8;
-#endif
-
-
-void BackEdgeTable::PatchAt(Code* unoptimized_code,
-                            Address pc,
-                            BackEdgeState target_state,
-                            Code* replacement_code) {
-  Address call_target_address = pc - kIntSize;
-  Address jns_instr_address = call_target_address - 3;
-  Address jns_offset_address = call_target_address - 2;
-
-  switch (target_state) {
-    case INTERRUPT:
-      //     sub <profiling_counter>, <delta>  ;; Not changed
-      //     jns ok
-      //     call <interrupt stub>
-      //   ok:
-      *jns_instr_address = kJnsInstruction;
-      *jns_offset_address = kJnsOffset;
-      break;
-    case ON_STACK_REPLACEMENT:
-    case OSR_AFTER_STACK_CHECK:
-      //     sub <profiling_counter>, <delta>  ;; Not changed
-      //     nop
-      //     nop
-      //     call <on-stack replacment>
-      //   ok:
-      *jns_instr_address = kNopByteOne;
-      *jns_offset_address = kNopByteTwo;
-      break;
-  }
-
-  Assembler::set_target_address_at(call_target_address,
-                                   unoptimized_code,
-                                   replacement_code->entry());
-  unoptimized_code->GetHeap()->incremental_marking()->RecordCodeTargetPatch(
-      unoptimized_code, call_target_address, replacement_code);
-}
-
-
-BackEdgeTable::BackEdgeState BackEdgeTable::GetBackEdgeState(
-    Isolate* isolate,
-    Code* unoptimized_code,
-    Address pc) {
-  Address call_target_address = pc - kIntSize;
-  Address jns_instr_address = call_target_address - 3;
-  DCHECK_EQ(kCallInstruction, *(call_target_address - 1));
-
-  if (*jns_instr_address == kJnsInstruction) {
-    DCHECK_EQ(kJnsOffset, *(call_target_address - 2));
-    DCHECK_EQ(isolate->builtins()->InterruptCheck()->entry(),
-              Assembler::target_address_at(call_target_address,
-                                           unoptimized_code));
-    return INTERRUPT;
-  }
-
-  DCHECK_EQ(kNopByteOne, *jns_instr_address);
-  DCHECK_EQ(kNopByteTwo, *(call_target_address - 2));
-
-  if (Assembler::target_address_at(call_target_address,
-                                   unoptimized_code) ==
-      isolate->builtins()->OnStackReplacement()->entry()) {
-    return ON_STACK_REPLACEMENT;
-  }
-
-  DCHECK_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(),
-            Assembler::target_address_at(call_target_address,
-                                         unoptimized_code));
-  return OSR_AFTER_STACK_CHECK;
-}
-
-
-}  // namespace internal
-}  // namespace v8
-
-#endif  // V8_TARGET_ARCH_X64