A64: Synchronize with r18581.

src/x64/full-codegen-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 114 matching lines @@
 
   ProfileEntryHookStub::MaybeCallEntryHook(masm_);
 
 #ifdef DEBUG
   if (strlen(FLAG_stop_at) > 0 &&
       info->function()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) {
     __ int3();
   }
 #endif
 
-  // Strict mode functions and builtins need to replace the receiver
-  // with undefined when called as functions (without an explicit
-  // receiver object). rcx is zero for method calls and non-zero for
-  // function calls.
-  if (!info->is_classic_mode() || info->is_native()) {
+  // Classic mode functions and builtins need to replace the receiver with the
+  // global proxy when called as functions (without an explicit receiver
+  // object).
+  if (info->is_classic_mode() && !info->is_native()) {
     Label ok;
     __ testq(rcx, rcx);
     __ j(zero, &ok, Label::kNear);
+
+    // +1 for return address.
     StackArgumentsAccessor args(rsp, info->scope()->num_parameters());
-    __ LoadRoot(kScratchRegister, Heap::kUndefinedValueRootIndex);
-    __ movq(args.GetReceiverOperand(), kScratchRegister);
+    __ movq(rcx, args.GetReceiverOperand());
+
+    __ CompareRoot(rcx, Heap::kUndefinedValueRootIndex);
+    __ j(not_equal, &ok, Label::kNear);
+
+    __ movq(rcx, GlobalObjectOperand());
+    __ movq(rcx, FieldOperand(rcx, GlobalObject::kGlobalReceiverOffset));
+
+    __ movq(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(BUILD_FUNCTION_FRAME);
@@ skipping 139 matching lines @@
   }
 }
 
 
 void FullCodeGenerator::ClearAccumulator() {
   __ Set(rax, 0);
 }
 
 
 void FullCodeGenerator::EmitProfilingCounterDecrement(int delta) {
-  __ movq(rbx, profiling_counter_, RelocInfo::EMBEDDED_OBJECT);
+  __ Move(rbx, profiling_counter_, RelocInfo::EMBEDDED_OBJECT);
   __ SmiAddConstant(FieldOperand(rbx, Cell::kValueOffset),
                     Smi::FromInt(-delta));
 }
 
 
 void FullCodeGenerator::EmitProfilingCounterReset() {
   int reset_value = FLAG_interrupt_budget;
-  __ movq(rbx, profiling_counter_, RelocInfo::EMBEDDED_OBJECT);
+  __ Move(rbx, profiling_counter_, RelocInfo::EMBEDDED_OBJECT);
   __ Move(kScratchRegister, Smi::FromInt(reset_value));
   __ movq(FieldOperand(rbx, Cell::kValueOffset), kScratchRegister);
 }
 
 
 void FullCodeGenerator::EmitBackEdgeBookkeeping(IterationStatement* stmt,
                                                 Label* back_edge_target) {
   Comment cmnt(masm_, "[ Back edge bookkeeping");
   Label ok;
 
@@ skipping 299 matching lines @@
     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, RelocInfo::CODE_TARGET, condition->test_id());
+  CallIC(ic, NOT_CONTEXTUAL, condition->test_id());
   __ testq(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) {
@@ skipping 332 matching lines @@
       __ cmpq(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.
     SetSourcePosition(clause->position());
     Handle<Code> ic = CompareIC::GetUninitialized(isolate(), Token::EQ_STRICT);
-    CallIC(ic, RelocInfo::CODE_TARGET, clause->CompareId());
+    CallIC(ic, NOT_CONTEXTUAL, 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);
@@ skipping 349 matching lines @@
     // Load next context in chain.
     __ movq(temp, ContextOperand(temp, Context::PREVIOUS_INDEX));
     __ jmp(&next);
     __ bind(&fast);
   }
 
   // All extension objects were empty and it is safe to use a global
   // load IC call.
   __ movq(rax, GlobalObjectOperand());
   __ Move(rcx, var->name());
-  Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize();
-  RelocInfo::Mode mode = (typeof_state == INSIDE_TYPEOF)
-      ? RelocInfo::CODE_TARGET
-      : RelocInfo::CODE_TARGET_CONTEXT;
-  CallIC(ic, mode);
+  ContextualMode mode = (typeof_state == INSIDE_TYPEOF)
+      ? NOT_CONTEXTUAL
+      : CONTEXTUAL;
+  CallLoadIC(mode);
 }
 
 
 MemOperand FullCodeGenerator::ContextSlotOperandCheckExtensions(Variable* var,
                                                                 Label* slow) {
   ASSERT(var->IsContextSlot());
   Register context = rsi;
   Register temp = rbx;
 
   for (Scope* s = scope(); s != var->scope(); s = s->outer_scope()) {
@@ skipping 59 matching lines @@
 
   // Three cases: global variables, lookup variables, and all other types of
   // variables.
   switch (var->location()) {
     case Variable::UNALLOCATED: {
       Comment cmnt(masm_, "Global variable");
       // Use inline caching. Variable name is passed in rcx and the global
       // object on the stack.
       __ Move(rcx, var->name());
       __ movq(rax, GlobalObjectOperand());
-      Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize();
-      CallIC(ic, RelocInfo::CODE_TARGET_CONTEXT);
+      CallLoadIC(CONTEXTUAL);
       context()->Plug(rax);
       break;
     }
 
     case Variable::PARAMETER:
     case Variable::LOCAL:
     case Variable::CONTEXT: {
       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
@@ skipping 193 matching lines @@
         UNREACHABLE();
       case ObjectLiteral::Property::MATERIALIZED_LITERAL:
         ASSERT(!CompileTimeValue::IsCompileTimeValue(value));
         // Fall through.
       case ObjectLiteral::Property::COMPUTED:
         if (key->value()->IsInternalizedString()) {
           if (property->emit_store()) {
             VisitForAccumulatorValue(value);
             __ Move(rcx, key->value());
             __ movq(rdx, Operand(rsp, 0));
-            Handle<Code> ic = is_classic_mode()
-                ? isolate()->builtins()->StoreIC_Initialize()
-                : isolate()->builtins()->StoreIC_Initialize_Strict();
-            CallIC(ic, RelocInfo::CODE_TARGET, key->LiteralFeedbackId());
+            CallStoreIC(NOT_CONTEXTUAL, key->LiteralFeedbackId());
             PrepareForBailoutForId(key->id(), NO_REGISTERS);
           } else {
             VisitForEffect(value);
           }
           break;
         }
         __ push(Operand(rsp, 0));  // Duplicate receiver.
         VisitForStackValue(key);
         VisitForStackValue(value);
         if (property->emit_store()) {
@@ skipping 60 matching lines @@
   int length = subexprs->length();
   Handle<FixedArray> constant_elements = expr->constant_elements();
   ASSERT_EQ(2, constant_elements->length());
   ElementsKind constant_elements_kind =
       static_cast<ElementsKind>(Smi::cast(constant_elements->get(0))->value());
   bool has_constant_fast_elements =
       IsFastObjectElementsKind(constant_elements_kind);
   Handle<FixedArrayBase> constant_elements_values(
       FixedArrayBase::cast(constant_elements->get(1)));
 
-  AllocationSiteMode allocation_site_mode = FLAG_track_allocation_sites
-      ? TRACK_ALLOCATION_SITE : DONT_TRACK_ALLOCATION_SITE;
+  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;
   }
 
   Heap* heap = isolate()->heap();
   if (has_constant_fast_elements &&
       constant_elements_values->map() == heap->fixed_cow_array_map()) {
     // If the elements are already FAST_*_ELEMENTS, the boilerplate cannot
@@ skipping 319 matching lines @@
       __ bind(&l_call);
       Handle<Code> ic = isolate()->stub_cache()->ComputeKeyedCallInitialize(1);
       CallIC(ic);
       __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
       __ Drop(1);  // The key is still on the stack; drop it.
 
       // if (!result.done) goto l_try;
       __ bind(&l_loop);
       __ push(rax);                                      // save result
       __ LoadRoot(rcx, Heap::kdone_stringRootIndex);     // "done"
-      Handle<Code> done_ic = isolate()->builtins()->LoadIC_Initialize();
-      CallIC(done_ic);                                   // result.done in rax
+      CallLoadIC(NOT_CONTEXTUAL);                        // result.done in rax
       Handle<Code> bool_ic = ToBooleanStub::GetUninitialized(isolate());
       CallIC(bool_ic);
       __ testq(result_register(), result_register());
       __ j(zero, &l_try);
 
       // result.value
       __ pop(rax);                                       // result
       __ LoadRoot(rcx, Heap::kvalue_stringRootIndex);    // "value"
-      Handle<Code> value_ic = isolate()->builtins()->LoadIC_Initialize();
-      CallIC(value_ic);                                  // result.value in rax
+      CallLoadIC(NOT_CONTEXTUAL);                        // result.value in rax
       context()->DropAndPlug(2, rax);                    // drop iter and g
       break;
     }
   }
 }
 
 
 void FullCodeGenerator::EmitGeneratorResume(Expression *generator,
     Expression *value,
     JSGeneratorObject::ResumeMode resume_mode) {
@@ skipping 125 matching lines @@
   // root set.
   __ RecordWriteField(rax, JSGeneratorObject::kResultValuePropertyOffset,
                       rcx, rdx, kDontSaveFPRegs);
 }
 
 
 void FullCodeGenerator::EmitNamedPropertyLoad(Property* prop) {
   SetSourcePosition(prop->position());
   Literal* key = prop->key()->AsLiteral();
   __ Move(rcx, key->value());
-  Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize();
-  CallIC(ic, RelocInfo::CODE_TARGET, prop->PropertyFeedbackId());
+  CallLoadIC(NOT_CONTEXTUAL, prop->PropertyFeedbackId());
 }
 
 
 void FullCodeGenerator::EmitKeyedPropertyLoad(Property* prop) {
   SetSourcePosition(prop->position());
   Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize();
-  CallIC(ic, RelocInfo::CODE_TARGET, prop->PropertyFeedbackId());
+  CallIC(ic, NOT_CONTEXTUAL, prop->PropertyFeedbackId());
 }
 
 
 void FullCodeGenerator::EmitInlineSmiBinaryOp(BinaryOperation* expr,
                                               Token::Value op,
                                               OverwriteMode mode,
                                               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);
   __ movq(rcx, rax);
   __ or_(rax, rdx);
   JumpPatchSite patch_site(masm_);
   patch_site.EmitJumpIfSmi(rax, &smi_case, Label::kNear);
 
   __ bind(&stub_call);
   __ movq(rax, rcx);
   BinaryOpICStub stub(op, mode);
-  CallIC(stub.GetCode(isolate()), RelocInfo::CODE_TARGET,
+  CallIC(stub.GetCode(isolate()), NOT_CONTEXTUAL,
          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:
@@ skipping 29 matching lines @@
   context()->Plug(rax);
 }
 
 
 void FullCodeGenerator::EmitBinaryOp(BinaryOperation* expr,
                                      Token::Value op,
                                      OverwriteMode mode) {
   __ pop(rdx);
   BinaryOpICStub stub(op, mode);
   JumpPatchSite patch_site(masm_);    // unbound, signals no inlined smi code.
-  CallIC(stub.GetCode(isolate()), RelocInfo::CODE_TARGET,
+  CallIC(stub.GetCode(isolate()), NOT_CONTEXTUAL,
          expr->BinaryOperationFeedbackId());
   patch_site.EmitPatchInfo();
   context()->Plug(rax);
 }
 
 
 void FullCodeGenerator::EmitAssignment(Expression* expr) {
   // Invalid left-hand sides are rewritten by the parser to have a 'throw
   // ReferenceError' on the left-hand side.
   if (!expr->IsValidLeftHandSide()) {
@@ skipping 18 matching lines @@
       EffectContext context(this);
       EmitVariableAssignment(var, Token::ASSIGN);
       break;
     }
     case NAMED_PROPERTY: {
       __ push(rax);  // Preserve value.
       VisitForAccumulatorValue(prop->obj());
       __ movq(rdx, rax);
       __ pop(rax);  // Restore value.
       __ Move(rcx, prop->key()->AsLiteral()->value());
-      Handle<Code> ic = is_classic_mode()
-          ? isolate()->builtins()->StoreIC_Initialize()
-          : isolate()->builtins()->StoreIC_Initialize_Strict();
-      CallIC(ic);
+      CallStoreIC(NOT_CONTEXTUAL);
       break;
     }
     case KEYED_PROPERTY: {
       __ push(rax);  // Preserve value.
       VisitForStackValue(prop->obj());
       VisitForAccumulatorValue(prop->key());
       __ movq(rcx, rax);
       __ pop(rdx);
       __ pop(rax);  // Restore value.
       Handle<Code> ic = is_classic_mode()
           ? isolate()->builtins()->KeyedStoreIC_Initialize()
           : isolate()->builtins()->KeyedStoreIC_Initialize_Strict();
       CallIC(ic);
       break;
     }
   }
   context()->Plug(rax);
 }
 
 
 void FullCodeGenerator::EmitVariableAssignment(Variable* var,
                                                Token::Value op) {
   if (var->IsUnallocated()) {
     // Global var, const, or let.
     __ Move(rcx, var->name());
     __ movq(rdx, GlobalObjectOperand());
-    Handle<Code> ic = is_classic_mode()
-        ? isolate()->builtins()->StoreIC_Initialize()
-        : isolate()->builtins()->StoreIC_Initialize_Strict();
-    CallIC(ic, RelocInfo::CODE_TARGET_CONTEXT);
+    CallStoreIC(CONTEXTUAL);
   } else if (op == Token::INIT_CONST) {
     // Const initializers need a write barrier.
     ASSERT(!var->IsParameter());  // No const parameters.
     if (var->IsStackLocal()) {
       Label skip;
       __ movq(rdx, StackOperand(var));
       __ CompareRoot(rdx, Heap::kTheHoleValueRootIndex);
       __ j(not_equal, &skip);
       __ movq(StackOperand(var), rax);
       __ bind(&skip);
@@ skipping 70 matching lines @@
 void FullCodeGenerator::EmitNamedPropertyAssignment(Assignment* expr) {
   // Assignment to a property, using a named store IC.
   Property* prop = expr->target()->AsProperty();
   ASSERT(prop != NULL);
   ASSERT(prop->key()->AsLiteral() != NULL);
 
   // Record source code position before IC call.
   SetSourcePosition(expr->position());
   __ Move(rcx, prop->key()->AsLiteral()->value());
   __ pop(rdx);
-  Handle<Code> ic = is_classic_mode()
-      ? isolate()->builtins()->StoreIC_Initialize()
-      : isolate()->builtins()->StoreIC_Initialize_Strict();
-  CallIC(ic, RelocInfo::CODE_TARGET, expr->AssignmentFeedbackId());
+  CallStoreIC(NOT_CONTEXTUAL, expr->AssignmentFeedbackId());
 
   PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
   context()->Plug(rax);
 }
 
 
 void FullCodeGenerator::EmitKeyedPropertyAssignment(Assignment* expr) {
   // Assignment to a property, using a keyed store IC.
 
   __ pop(rcx);
   __ pop(rdx);
   // Record source code position before IC call.
   SetSourcePosition(expr->position());
   Handle<Code> ic = is_classic_mode()
       ? isolate()->builtins()->KeyedStoreIC_Initialize()
       : isolate()->builtins()->KeyedStoreIC_Initialize_Strict();
-  CallIC(ic, RelocInfo::CODE_TARGET, expr->AssignmentFeedbackId());
+  CallIC(ic, NOT_CONTEXTUAL, expr->AssignmentFeedbackId());
 
   PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
   context()->Plug(rax);
 }
 
 
 void FullCodeGenerator::VisitProperty(Property* expr) {
   Comment cmnt(masm_, "[ Property");
   Expression* key = expr->key();
 
   if (key->IsPropertyName()) {
     VisitForAccumulatorValue(expr->obj());
     EmitNamedPropertyLoad(expr);
     PrepareForBailoutForId(expr->LoadId(), TOS_REG);
     context()->Plug(rax);
   } else {
     VisitForStackValue(expr->obj());
     VisitForAccumulatorValue(expr->key());
     __ pop(rdx);
     EmitKeyedPropertyLoad(expr);
     context()->Plug(rax);
   }
 }
 
 
 void FullCodeGenerator::CallIC(Handle<Code> code,
-                               RelocInfo::Mode rmode,
+                               ContextualMode mode,
                                TypeFeedbackId ast_id) {
   ic_total_count_++;
-  __ call(code, rmode, ast_id);
+  ASSERT(mode != CONTEXTUAL || ast_id.IsNone());
+  __ call(code, RelocInfo::CODE_TARGET, ast_id);
 }
 
 
 void FullCodeGenerator::EmitCallWithIC(Call* expr,
                                        Handle<Object> name,
-                                       RelocInfo::Mode mode) {
+                                       ContextualMode mode) {
   // Code common for calls using the IC.
   ZoneList<Expression*>* args = expr->arguments();
   int arg_count = args->length();
   { PreservePositionScope scope(masm()->positions_recorder());
     for (int i = 0; i < arg_count; i++) {
       VisitForStackValue(args->at(i));
     }
     __ Move(rcx, name);
   }
   // Record source position for debugger.
   SetSourcePosition(expr->position());
   // Call the IC initialization code.
   Handle<Code> ic =
       isolate()->stub_cache()->ComputeCallInitialize(arg_count, mode);
-  CallIC(ic, mode, expr->CallFeedbackId());
+  TypeFeedbackId ast_id = mode == CONTEXTUAL
+      ? TypeFeedbackId::None()
+      : expr->CallFeedbackId();
+  CallIC(ic, mode, ast_id);
   RecordJSReturnSite(expr);
   // Restore context register.
   __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
   context()->Plug(rax);
 }
 
 
 void FullCodeGenerator::EmitKeyedCallWithIC(Call* expr,
                                             Expression* key) {
   // Load the key.
@@ skipping 12 matching lines @@
     for (int i = 0; i < arg_count; i++) {
       VisitForStackValue(args->at(i));
     }
   }
   // Record source position for debugger.
   SetSourcePosition(expr->position());
   // Call the IC initialization code.
   Handle<Code> ic =
       isolate()->stub_cache()->ComputeKeyedCallInitialize(arg_count);
   __ movq(rcx, Operand(rsp, (arg_count + 1) * kPointerSize));  // Key.
-  CallIC(ic, RelocInfo::CODE_TARGET, expr->CallFeedbackId());
+  CallIC(ic, NOT_CONTEXTUAL, expr->CallFeedbackId());
   RecordJSReturnSite(expr);
   // Restore context register.
   __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
   context()->DropAndPlug(1, rax);  // Drop the key still on the stack.
 }
 
 
 void FullCodeGenerator::EmitCallWithStub(Call* expr, CallFunctionFlags flags) {
   // Code common for calls using the call stub.
   ZoneList<Expression*>* args = expr->arguments();
@@ skipping 80 matching lines @@
       __ push(Operand(rsp, (arg_count + 1) * kPointerSize));
       EmitResolvePossiblyDirectEval(arg_count);
 
       // The runtime call returns a pair of values in rax (function) and
       // rdx (receiver). Touch up the stack with the right values.
       __ movq(Operand(rsp, (arg_count + 0) * kPointerSize), rdx);
       __ movq(Operand(rsp, (arg_count + 1) * kPointerSize), rax);
     }
     // Record source position for debugger.
     SetSourcePosition(expr->position());
-    CallFunctionStub stub(arg_count, RECEIVER_MIGHT_BE_IMPLICIT);
+    CallFunctionStub stub(arg_count, NO_CALL_FUNCTION_FLAGS);
     __ movq(rdi, Operand(rsp, (arg_count + 1) * kPointerSize));
     __ CallStub(&stub);
     RecordJSReturnSite(expr);
     // Restore context register.
     __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
     context()->DropAndPlug(1, rax);
   } else if (proxy != NULL && proxy->var()->IsUnallocated()) {
     // Call to a global variable.  Push global object as receiver for the
     // call IC lookup.
     __ push(GlobalObjectOperand());
-    EmitCallWithIC(expr, proxy->name(), RelocInfo::CODE_TARGET_CONTEXT);
+    EmitCallWithIC(expr, proxy->name(), CONTEXTUAL);
   } else if (proxy != NULL && proxy->var()->IsLookupSlot()) {
     // Call to a lookup slot (dynamically introduced variable).
     Label slow, done;
 
     { PreservePositionScope scope(masm()->positions_recorder());
       // Generate code for loading from variables potentially shadowed by
       // eval-introduced variables.
       EmitDynamicLookupFastCase(proxy->var(), 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(proxy->name());
     __ CallRuntime(Runtime::kLoadContextSlot, 2);
     __ push(rax);  // Function.
     __ push(rdx);  // Receiver.
 
     // 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);
       // The receiver is implicitly the global receiver. Indicate this by
       // passing the hole to the call function stub.
-      __ PushRoot(Heap::kTheHoleValueRootIndex);
+      __ PushRoot(Heap::kUndefinedValueRootIndex);
       __ bind(&call);
     }
 
     // The receiver is either the global receiver or an object found by
-    // LoadContextSlot. That object could be the hole if the receiver is
-    // implicitly the global object.
-    EmitCallWithStub(expr, RECEIVER_MIGHT_BE_IMPLICIT);
+    // LoadContextSlot.
+    EmitCallWithStub(expr, NO_CALL_FUNCTION_FLAGS);
   } else if (property != NULL) {
     { PreservePositionScope scope(masm()->positions_recorder());
       VisitForStackValue(property->obj());
     }
     if (property->key()->IsPropertyName()) {
       EmitCallWithIC(expr,
                      property->key()->AsLiteral()->value(),
-                     RelocInfo::CODE_TARGET);
+                     NOT_CONTEXTUAL);
     } else {
       EmitKeyedCallWithIC(expr, property->key());
     }
   } else {
     // Call to an arbitrary expression not handled specially above.
     { PreservePositionScope scope(masm()->positions_recorder());
       VisitForStackValue(callee);
     }
-    // Load global receiver object.
-    __ movq(rbx, GlobalObjectOperand());
-    __ push(FieldOperand(rbx, GlobalObject::kGlobalReceiverOffset));
+    __ PushRoot(Heap::kUndefinedValueRootIndex);
     // Emit function call.
     EmitCallWithStub(expr, NO_CALL_FUNCTION_FLAGS);
   }
 
 #ifdef DEBUG
   // RecordJSReturnSite should have been called.
   ASSERT(expr->return_is_recorded_);
 #endif
 }
 
@@ skipping 587 matching lines @@
       __ movq(scratch, stamp_operand);
       __ cmpq(scratch, FieldOperand(object, JSDate::kCacheStampOffset));
       __ j(not_equal, &runtime, Label::kNear);
       __ movq(result, FieldOperand(object, JSDate::kValueOffset +
                                            kPointerSize * index->value()));
       __ jmp(&done);
     }
     __ bind(&runtime);
     __ PrepareCallCFunction(2);
     __ movq(arg_reg_1, object);
-    __ movq(arg_reg_2, index, RelocInfo::NONE64);
+    __ Move(arg_reg_2, index, RelocInfo::NONE64);
     __ CallCFunction(ExternalReference::get_date_field_function(isolate()), 2);
     __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
     __ jmp(&done);
   }
 
   __ bind(&not_date_object);
   __ CallRuntime(Runtime::kThrowNotDateError, 0);
   __ bind(&done);
   context()->Plug(rax);
 }
@@ skipping 299 matching lines @@
   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.
   __ movq(rdi, result_register());
   ParameterCount count(arg_count);
   __ InvokeFunction(rdi, count, CALL_FUNCTION,
-                    NullCallWrapper(), CALL_AS_METHOD);
+                    NullCallWrapper(), CALL_AS_FUNCTION);
   __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
   __ jmp(&done);
 
   __ bind(&runtime);
   __ push(rax);
   __ CallRuntime(Runtime::kCall, args->length());
   __ bind(&done);
 
   context()->Plug(rax);
 }
@@ skipping 449 matching lines @@
 
   // Push the arguments ("left-to-right").
   int arg_count = args->length();
   for (int i = 0; i < arg_count; i++) {
     VisitForStackValue(args->at(i));
   }
 
   if (expr->is_jsruntime()) {
     // Call the JS runtime function using a call IC.
     __ Move(rcx, expr->name());
-    RelocInfo::Mode mode = RelocInfo::CODE_TARGET;
+    ContextualMode mode = NOT_CONTEXTUAL;
     Handle<Code> ic =
         isolate()->stub_cache()->ComputeCallInitialize(arg_count, mode);
     CallIC(ic, mode, expr->CallRuntimeFeedbackId());
     // Restore context register.
     __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
   } else {
     __ CallRuntime(expr->function(), arg_count);
   }
   context()->Plug(rax);
 }
@@ skipping 233 matching lines @@
 
   // Record position before stub call.
   SetSourcePosition(expr->position());
 
   // Call stub for +1/-1.
   __ bind(&stub_call);
   __ movq(rdx, rax);
   __ Move(rax, Smi::FromInt(1));
   BinaryOpICStub stub(expr->binary_op(), NO_OVERWRITE);
   CallIC(stub.GetCode(isolate()),
-         RelocInfo::CODE_TARGET,
+         NOT_CONTEXTUAL,
          expr->CountBinOpFeedbackId());
   patch_site.EmitPatchInfo();
   __ bind(&done);
 
   // Store the value returned in rax.
   switch (assign_type) {
     case VARIABLE:
       if (expr->is_postfix()) {
         // Perform the assignment as if via '='.
         { EffectContext context(this);
@@ skipping 11 matching lines @@
         // Perform the assignment as if via '='.
         EmitVariableAssignment(expr->expression()->AsVariableProxy()->var(),
                                Token::ASSIGN);
         PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
         context()->Plug(rax);
       }
       break;
     case NAMED_PROPERTY: {
       __ Move(rcx, prop->key()->AsLiteral()->value());
       __ pop(rdx);
-      Handle<Code> ic = is_classic_mode()
-          ? isolate()->builtins()->StoreIC_Initialize()
-          : isolate()->builtins()->StoreIC_Initialize_Strict();
-      CallIC(ic, RelocInfo::CODE_TARGET, expr->CountStoreFeedbackId());
+      CallStoreIC(NOT_CONTEXTUAL, expr->CountStoreFeedbackId());
       PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
       if (expr->is_postfix()) {
         if (!context()->IsEffect()) {
           context()->PlugTOS();
         }
       } else {
         context()->Plug(rax);
       }
       break;
     }
     case KEYED_PROPERTY: {
       __ pop(rcx);
       __ pop(rdx);
       Handle<Code> ic = is_classic_mode()
           ? isolate()->builtins()->KeyedStoreIC_Initialize()
           : isolate()->builtins()->KeyedStoreIC_Initialize_Strict();
-      CallIC(ic, RelocInfo::CODE_TARGET, expr->CountStoreFeedbackId());
+      CallIC(ic, NOT_CONTEXTUAL, expr->CountStoreFeedbackId());
       PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
       if (expr->is_postfix()) {
         if (!context()->IsEffect()) {
           context()->PlugTOS();
         }
       } else {
         context()->Plug(rax);
       }
       break;
     }
   }
 }
 
 
 void FullCodeGenerator::VisitForTypeofValue(Expression* expr) {
   VariableProxy* proxy = expr->AsVariableProxy();
   ASSERT(!context()->IsEffect());
   ASSERT(!context()->IsTest());
 
   if (proxy != NULL && proxy->var()->IsUnallocated()) {
     Comment cmnt(masm_, "Global variable");
     __ Move(rcx, proxy->name());
     __ movq(rax, GlobalObjectOperand());
-    Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize();
     // Use a regular load, not a contextual load, to avoid a reference
     // error.
-    CallIC(ic);
+    CallLoadIC(NOT_CONTEXTUAL);
     PrepareForBailout(expr, TOS_REG);
     context()->Plug(rax);
   } else if (proxy != NULL && proxy->var()->IsLookupSlot()) {
     Label done, slow;
 
     // Generate code for loading from variables potentially shadowed
     // by eval-introduced variables.
     EmitDynamicLookupFastCase(proxy->var(), INSIDE_TYPEOF, &slow, &done);
 
     __ bind(&slow);
@@ skipping 141 matching lines @@
         __ or_(rcx, rax);
         patch_site.EmitJumpIfNotSmi(rcx, &slow_case, Label::kNear);
         __ cmpq(rdx, rax);
         Split(cc, if_true, if_false, NULL);
         __ bind(&slow_case);
       }
 
       // Record position and call the compare IC.
       SetSourcePosition(expr->position());
       Handle<Code> ic = CompareIC::GetUninitialized(isolate(), op);
-      CallIC(ic, RelocInfo::CODE_TARGET, expr->CompareOperationFeedbackId());
+      CallIC(ic, NOT_CONTEXTUAL, expr->CompareOperationFeedbackId());
       patch_site.EmitPatchInfo();
 
       PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
       __ testq(rax, rax);
       Split(cc, if_true, if_false, fall_through);
     }
   }
 
   // Convert the result of the comparison into one expected for this
   // expression's context.
@@ skipping 14 matching lines @@
   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, RelocInfo::CODE_TARGET, expr->CompareOperationFeedbackId());
+    CallIC(ic, NOT_CONTEXTUAL, expr->CompareOperationFeedbackId());
     __ testq(rax, rax);
     Split(not_zero, if_true, if_false, fall_through);
   }
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::VisitThisFunction(ThisFunction* expr) {
   __ movq(rax, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
   context()->Plug(rax);
@@ skipping 211 matching lines @@
 
   ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(),
             Assembler::target_address_at(call_target_address));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64