Move register conventions out of the IC classes.

src/ia32/full-codegen-ia32.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_IA32
 
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 1309 matching lines @@
     __ cmp(ContextOperand(temp, Context::EXTENSION_INDEX), Immediate(0));
     __ j(not_equal, slow);
     // Load next context in chain.
     __ mov(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.
-  __ mov(LoadIC::ReceiverRegister(), GlobalObjectOperand());
-  __ mov(LoadIC::NameRegister(), proxy->var()->name());
+  __ mov(LoadConvention::ReceiverRegister(), GlobalObjectOperand());
+  __ mov(LoadConvention::NameRegister(), proxy->var()->name());
   if (FLAG_vector_ics) {
-    __ mov(LoadIC::SlotRegister(),
+    __ mov(VectorLoadConvention::SlotRegister(),
            Immediate(Smi::FromInt(proxy->VariableFeedbackSlot())));
   }
 
   ContextualMode mode = (typeof_state == INSIDE_TYPEOF)
       ? NOT_CONTEXTUAL
       : CONTEXTUAL;
 
   CallLoadIC(mode);
 }
 
@@ skipping 63 matching lines @@
 void FullCodeGenerator::EmitVariableLoad(VariableProxy* proxy) {
   // Record position before possible IC call.
   SetSourcePosition(proxy->position());
   Variable* var = proxy->var();
 
   // Three cases: global variables, lookup variables, and all other types of
   // variables.
   switch (var->location()) {
     case Variable::UNALLOCATED: {
       Comment cmnt(masm_, "[ Global variable");
-      __ mov(LoadIC::ReceiverRegister(), GlobalObjectOperand());
-      __ mov(LoadIC::NameRegister(), var->name());
+      __ mov(LoadConvention::ReceiverRegister(), GlobalObjectOperand());
+      __ mov(LoadConvention::NameRegister(), var->name());
       if (FLAG_vector_ics) {
-        __ mov(LoadIC::SlotRegister(),
+        __ mov(VectorLoadConvention::SlotRegister(),
                Immediate(Smi::FromInt(proxy->VariableFeedbackSlot())));
       }
       CallLoadIC(CONTEXTUAL);
       context()->Plug(eax);
       break;
     }
 
     case Variable::PARAMETER:
     case Variable::LOCAL:
     case Variable::CONTEXT: {
@@ skipping 195 matching lines @@
     switch (property->kind()) {
       case ObjectLiteral::Property::CONSTANT:
         UNREACHABLE();
       case ObjectLiteral::Property::MATERIALIZED_LITERAL:
         DCHECK(!CompileTimeValue::IsCompileTimeValue(value));
         // Fall through.
       case ObjectLiteral::Property::COMPUTED:
         if (key->value()->IsInternalizedString()) {
           if (property->emit_store()) {
             VisitForAccumulatorValue(value);
-            DCHECK(StoreIC::ValueRegister().is(eax));
-            __ mov(StoreIC::NameRegister(), Immediate(key->value()));
-            __ mov(StoreIC::ReceiverRegister(), Operand(esp, 0));
+            DCHECK(StoreConvention::ValueRegister().is(eax));
+            __ mov(StoreConvention::NameRegister(), Immediate(key->value()));
+            __ mov(StoreConvention::ReceiverRegister(), Operand(esp, 0));
             CallStoreIC(key->LiteralFeedbackId());
             PrepareForBailoutForId(key->id(), NO_REGISTERS);
           } else {
             VisitForEffect(value);
           }
           break;
         }
         __ push(Operand(esp, 0));  // Duplicate receiver.
         VisitForStackValue(key);
         VisitForStackValue(value);
@@ skipping 158 matching lines @@
 
   // 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());
-        __ mov(LoadIC::ReceiverRegister(), Operand(esp, 0));
+        __ mov(LoadConvention::ReceiverRegister(), Operand(esp, 0));
       } else {
         VisitForStackValue(property->obj());
       }
       break;
     case KEYED_PROPERTY: {
       if (expr->is_compound()) {
         VisitForStackValue(property->obj());
         VisitForStackValue(property->key());
-        __ mov(LoadIC::ReceiverRegister(), Operand(esp, kPointerSize));
-        __ mov(LoadIC::NameRegister(), Operand(esp, 0));
+        __ mov(LoadConvention::ReceiverRegister(), Operand(esp, kPointerSize));
+        __ mov(LoadConvention::NameRegister(), Operand(esp, 0));
       } else {
         VisitForStackValue(property->obj());
         VisitForStackValue(property->key());
       }
       break;
     }
   }
 
   // For compound assignments we need another deoptimization point after the
   // variable/property load.
@@ skipping 120 matching lines @@
 
     case Yield::DELEGATING: {
       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 = LoadIC::ReceiverRegister();
-      Register load_name = LoadIC::NameRegister();
+      Register load_receiver = LoadConvention::ReceiverRegister();
+      Register load_name = LoadConvention::NameRegister();
 
       // Initial send value is undefined.
       __ mov(eax, isolate()->factory()->undefined_value());
       __ jmp(&l_next);
 
       // catch (e) { receiver = iter; f = 'throw'; arg = e; goto l_call; }
       __ bind(&l_catch);
       handler_table()->set(expr->index(), Smi::FromInt(l_catch.pos()));
       __ mov(load_name, isolate()->factory()->throw_string());  // "throw"
       __ push(load_name);                                       // "throw"
@@ skipping 36 matching lines @@
 
       __ mov(load_name, isolate()->factory()->next_string());
       __ push(load_name);                           // "next"
       __ push(Operand(esp, 2 * kPointerSize));      // iter
       __ push(eax);                                 // received
 
       // result = receiver[f](arg);
       __ bind(&l_call);
       __ mov(load_receiver, Operand(esp, kPointerSize));
       if (FLAG_vector_ics) {
-        __ mov(LoadIC::SlotRegister(),
+        __ mov(VectorLoadConvention::SlotRegister(),
                Immediate(Smi::FromInt(expr->KeyedLoadFeedbackSlot())));
       }
       Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize();
       CallIC(ic, TypeFeedbackId::None());
       __ mov(edi, eax);
       __ mov(Operand(esp, 2 * kPointerSize), edi);
       CallFunctionStub stub(isolate(), 1, CALL_AS_METHOD);
       __ CallStub(&stub);
 
       __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
       __ Drop(1);  // The function is still on the stack; drop it.
 
       // if (!result.done) goto l_try;
       __ bind(&l_loop);
       __ push(eax);                                      // save result
       __ Move(load_receiver, eax);                       // result
       __ mov(load_name,
              isolate()->factory()->done_string());       // "done"
       if (FLAG_vector_ics) {
-        __ mov(LoadIC::SlotRegister(),
+        __ mov(VectorLoadConvention::SlotRegister(),
                Immediate(Smi::FromInt(expr->DoneFeedbackSlot())));
       }
       CallLoadIC(NOT_CONTEXTUAL);                        // result.done in eax
       Handle<Code> bool_ic = ToBooleanStub::GetUninitialized(isolate());
       CallIC(bool_ic);
       __ test(eax, eax);
       __ j(zero, &l_try);
 
       // result.value
       __ pop(load_receiver);                              // result
       __ mov(load_name,
              isolate()->factory()->value_string());       // "value"
       if (FLAG_vector_ics) {
-        __ mov(LoadIC::SlotRegister(),
+        __ mov(VectorLoadConvention::SlotRegister(),
                Immediate(Smi::FromInt(expr->ValueFeedbackSlot())));
       }
       CallLoadIC(NOT_CONTEXTUAL);                         // result.value in eax
       context()->DropAndPlug(2, eax);                     // drop iter and g
       break;
     }
   }
 }
 
 
@@ skipping 141 matching lines @@
   // root set.
   __ RecordWriteField(eax, JSGeneratorObject::kResultValuePropertyOffset,
                       ecx, edx, kDontSaveFPRegs);
 }
 
 
 void FullCodeGenerator::EmitNamedPropertyLoad(Property* prop) {
   SetSourcePosition(prop->position());
   Literal* key = prop->key()->AsLiteral();
   DCHECK(!key->value()->IsSmi());
-  __ mov(LoadIC::NameRegister(), Immediate(key->value()));
+  __ mov(LoadConvention::NameRegister(), Immediate(key->value()));
   if (FLAG_vector_ics) {
-    __ mov(LoadIC::SlotRegister(),
+    __ mov(VectorLoadConvention::SlotRegister(),
            Immediate(Smi::FromInt(prop->PropertyFeedbackSlot())));
     CallLoadIC(NOT_CONTEXTUAL);
   } else {
     CallLoadIC(NOT_CONTEXTUAL, prop->PropertyFeedbackId());
   }
 }
 
 
 void FullCodeGenerator::EmitKeyedPropertyLoad(Property* prop) {
   SetSourcePosition(prop->position());
   Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize();
   if (FLAG_vector_ics) {
-    __ mov(LoadIC::SlotRegister(),
+    __ mov(VectorLoadConvention::SlotRegister(),
            Immediate(Smi::FromInt(prop->PropertyFeedbackSlot())));
     CallIC(ic);
   } else {
     CallIC(ic, prop->PropertyFeedbackId());
   }
 }
 
 
 void FullCodeGenerator::EmitInlineSmiBinaryOp(BinaryOperation* expr,
                                               Token::Value op,
@@ skipping 119 matching lines @@
   switch (assign_type) {
     case VARIABLE: {
       Variable* var = expr->AsVariableProxy()->var();
       EffectContext context(this);
       EmitVariableAssignment(var, Token::ASSIGN);
       break;
     }
     case NAMED_PROPERTY: {
       __ push(eax);  // Preserve value.
       VisitForAccumulatorValue(prop->obj());
-      __ Move(StoreIC::ReceiverRegister(), eax);
-      __ pop(StoreIC::ValueRegister());  // Restore value.
-      __ mov(StoreIC::NameRegister(), prop->key()->AsLiteral()->value());
+      __ Move(StoreConvention::ReceiverRegister(), eax);
+      __ pop(StoreConvention::ValueRegister());  // Restore value.
+      __ mov(StoreConvention::NameRegister(),
+             prop->key()->AsLiteral()->value());
       CallStoreIC();
       break;
     }
     case KEYED_PROPERTY: {
       __ push(eax);  // Preserve value.
       VisitForStackValue(prop->obj());
       VisitForAccumulatorValue(prop->key());
-      __ Move(KeyedStoreIC::NameRegister(), eax);
-      __ pop(KeyedStoreIC::ReceiverRegister());  // Receiver.
-      __ pop(KeyedStoreIC::ValueRegister());  // Restore value.
+      __ Move(StoreConvention::NameRegister(), eax);
+      __ pop(StoreConvention::ReceiverRegister());  // Receiver.
+      __ pop(StoreConvention::ValueRegister());     // Restore value.
       Handle<Code> ic = strict_mode() == SLOPPY
           ? isolate()->builtins()->KeyedStoreIC_Initialize()
           : isolate()->builtins()->KeyedStoreIC_Initialize_Strict();
       CallIC(ic);
       break;
     }
   }
   context()->Plug(eax);
 }
 
 
 void FullCodeGenerator::EmitStoreToStackLocalOrContextSlot(
     Variable* var, MemOperand location) {
   __ mov(location, eax);
   if (var->IsContextSlot()) {
     __ mov(edx, eax);
     int offset = Context::SlotOffset(var->index());
     __ RecordWriteContextSlot(ecx, offset, edx, ebx, kDontSaveFPRegs);
   }
 }
 
 
 void FullCodeGenerator::EmitVariableAssignment(Variable* var,
                                                Token::Value op) {
   if (var->IsUnallocated()) {
     // Global var, const, or let.
-    __ mov(StoreIC::NameRegister(), var->name());
-    __ mov(StoreIC::ReceiverRegister(), GlobalObjectOperand());
+    __ mov(StoreConvention::NameRegister(), var->name());
+    __ mov(StoreConvention::ReceiverRegister(), GlobalObjectOperand());
     CallStoreIC();
 
   } else if (op == Token::INIT_CONST_LEGACY) {
     // Const initializers need a write barrier.
     DCHECK(!var->IsParameter());  // No const parameters.
     if (var->IsLookupSlot()) {
       __ push(eax);
       __ push(esi);
       __ push(Immediate(var->name()));
       __ CallRuntime(Runtime::kInitializeLegacyConstLookupSlot, 3);
@@ skipping 52 matching lines @@
   // Assignment to a property, using a named store IC.
   // eax    : value
   // esp[0] : receiver
 
   Property* prop = expr->target()->AsProperty();
   DCHECK(prop != NULL);
   DCHECK(prop->key()->IsLiteral());
 
   // Record source code position before IC call.
   SetSourcePosition(expr->position());
-  __ mov(StoreIC::NameRegister(), prop->key()->AsLiteral()->value());
-  __ pop(StoreIC::ReceiverRegister());
+  __ mov(StoreConvention::NameRegister(), prop->key()->AsLiteral()->value());
+  __ pop(StoreConvention::ReceiverRegister());
   CallStoreIC(expr->AssignmentFeedbackId());
   PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
   context()->Plug(eax);
 }
 
 
 void FullCodeGenerator::EmitKeyedPropertyAssignment(Assignment* expr) {
   // Assignment to a property, using a keyed store IC.
   // eax               : value
   // esp[0]            : key
   // esp[kPointerSize] : receiver
 
-  __ pop(KeyedStoreIC::NameRegister());  // Key.
-  __ pop(KeyedStoreIC::ReceiverRegister());
-  DCHECK(KeyedStoreIC::ValueRegister().is(eax));
+  __ pop(StoreConvention::NameRegister());  // Key.
+  __ pop(StoreConvention::ReceiverRegister());
+  DCHECK(StoreConvention::ValueRegister().is(eax));
   // Record source code position before IC call.
   SetSourcePosition(expr->position());
   Handle<Code> ic = strict_mode() == SLOPPY
       ? isolate()->builtins()->KeyedStoreIC_Initialize()
       : isolate()->builtins()->KeyedStoreIC_Initialize_Strict();
   CallIC(ic, expr->AssignmentFeedbackId());
 
   PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
   context()->Plug(eax);
 }
 
 
 void FullCodeGenerator::VisitProperty(Property* expr) {
   Comment cmnt(masm_, "[ Property");
   Expression* key = expr->key();
 
   if (key->IsPropertyName()) {
     VisitForAccumulatorValue(expr->obj());
-    __ Move(LoadIC::ReceiverRegister(), result_register());
+    __ Move(LoadConvention::ReceiverRegister(), result_register());
     EmitNamedPropertyLoad(expr);
     PrepareForBailoutForId(expr->LoadId(), TOS_REG);
     context()->Plug(eax);
   } else {
     VisitForStackValue(expr->obj());
     VisitForAccumulatorValue(expr->key());
-    __ pop(LoadIC::ReceiverRegister());                  // Object.
-    __ Move(LoadIC::NameRegister(), result_register());  // Key.
+    __ pop(LoadConvention::ReceiverRegister());                  // Object.
+    __ Move(LoadConvention::NameRegister(), result_register());  // Key.
     EmitKeyedPropertyLoad(expr);
     context()->Plug(eax);
   }
 }
 
 
 void FullCodeGenerator::CallIC(Handle<Code> code,
                                TypeFeedbackId ast_id) {
   ic_total_count_++;
   __ call(code, RelocInfo::CODE_TARGET, ast_id);
@@ skipping 12 matching lines @@
     { 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(Immediate(isolate()->factory()->undefined_value()));
   } else {
     // Load the function from the receiver.
     DCHECK(callee->IsProperty());
-    __ mov(LoadIC::ReceiverRegister(), Operand(esp, 0));
+    __ mov(LoadConvention::ReceiverRegister(), Operand(esp, 0));
     EmitNamedPropertyLoad(callee->AsProperty());
     PrepareForBailoutForId(callee->AsProperty()->LoadId(), TOS_REG);
     // Push the target function under the receiver.
     __ push(Operand(esp, 0));
     __ mov(Operand(esp, kPointerSize), eax);
   }
 
   EmitCall(expr, call_type);
 }
 
 
 // Code common 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());
-  __ mov(LoadIC::ReceiverRegister(), Operand(esp, 0));
-  __ mov(LoadIC::NameRegister(), eax);
+  __ mov(LoadConvention::ReceiverRegister(), Operand(esp, 0));
+  __ mov(LoadConvention::NameRegister(), eax);
   EmitKeyedPropertyLoad(callee->AsProperty());
   PrepareForBailoutForId(callee->AsProperty()->LoadId(), TOS_REG);
 
   // Push the target function under the receiver.
   __ push(Operand(esp, 0));
   __ mov(Operand(esp, kPointerSize), eax);
 
   EmitCall(expr, CallIC::METHOD);
 }
 
@@ skipping 1437 matching lines @@
 
   Comment cmnt(masm_, "[ CallRuntime");
   ZoneList<Expression*>* args = expr->arguments();
 
   if (expr->is_jsruntime()) {
     // Push the builtins object as receiver.
     __ mov(eax, GlobalObjectOperand());
     __ push(FieldOperand(eax, GlobalObject::kBuiltinsOffset));
 
     // Load the function from the receiver.
-    __ mov(LoadIC::ReceiverRegister(), Operand(esp, 0));
-    __ mov(LoadIC::NameRegister(), Immediate(expr->name()));
+    __ mov(LoadConvention::ReceiverRegister(), Operand(esp, 0));
+    __ mov(LoadConvention::NameRegister(), Immediate(expr->name()));
     if (FLAG_vector_ics) {
-      __ mov(LoadIC::SlotRegister(),
+      __ mov(VectorLoadConvention::SlotRegister(),
              Immediate(Smi::FromInt(expr->CallRuntimeFeedbackSlot())));
       CallLoadIC(NOT_CONTEXTUAL);
     } else {
       CallLoadIC(NOT_CONTEXTUAL, expr->CallRuntimeFeedbackId());
     }
 
     // Push the target function under the receiver.
     __ push(Operand(esp, 0));
     __ mov(Operand(esp, kPointerSize), eax);
 
@@ skipping 166 matching lines @@
     AccumulatorValueContext context(this);
     EmitVariableLoad(expr->expression()->AsVariableProxy());
   } else {
     // Reserve space for result of postfix operation.
     if (expr->is_postfix() && !context()->IsEffect()) {
       __ push(Immediate(Smi::FromInt(0)));
     }
     if (assign_type == NAMED_PROPERTY) {
       // Put the object both on the stack and in the register.
       VisitForStackValue(prop->obj());
-      __ mov(LoadIC::ReceiverRegister(), Operand(esp, 0));
+      __ mov(LoadConvention::ReceiverRegister(), Operand(esp, 0));
       EmitNamedPropertyLoad(prop);
     } else {
       VisitForStackValue(prop->obj());
       VisitForStackValue(prop->key());
-      __ mov(LoadIC::ReceiverRegister(),
-             Operand(esp, kPointerSize));               // Object.
-      __ mov(LoadIC::NameRegister(), Operand(esp, 0));  // Key.
+      __ mov(LoadConvention::ReceiverRegister(),
+             Operand(esp, kPointerSize));                       // Object.
+      __ mov(LoadConvention::NameRegister(), Operand(esp, 0));  // Key.
       EmitKeyedPropertyLoad(prop);
     }
   }
 
   // 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);
@@ skipping 94 matching lines @@
         }
       } else {
         // Perform the assignment as if via '='.
         EmitVariableAssignment(expr->expression()->AsVariableProxy()->var(),
                                Token::ASSIGN);
         PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
         context()->Plug(eax);
       }
       break;
     case NAMED_PROPERTY: {
-      __ mov(StoreIC::NameRegister(), prop->key()->AsLiteral()->value());
-      __ pop(StoreIC::ReceiverRegister());
+      __ mov(StoreConvention::NameRegister(),
+             prop->key()->AsLiteral()->value());
+      __ pop(StoreConvention::ReceiverRegister());
       CallStoreIC(expr->CountStoreFeedbackId());
       PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
       if (expr->is_postfix()) {
         if (!context()->IsEffect()) {
           context()->PlugTOS();
         }
       } else {
         context()->Plug(eax);
       }
       break;
     }
     case KEYED_PROPERTY: {
-      __ pop(KeyedStoreIC::NameRegister());
-      __ pop(KeyedStoreIC::ReceiverRegister());
+      __ pop(StoreConvention::NameRegister());
+      __ pop(StoreConvention::ReceiverRegister());
       Handle<Code> ic = strict_mode() == SLOPPY
           ? isolate()->builtins()->KeyedStoreIC_Initialize()
           : isolate()->builtins()->KeyedStoreIC_Initialize_Strict();
       CallIC(ic, expr->CountStoreFeedbackId());
       PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
       if (expr->is_postfix()) {
         // Result is on the stack
         if (!context()->IsEffect()) {
           context()->PlugTOS();
         }
       } else {
         context()->Plug(eax);
       }
       break;
     }
   }
 }
 
 
 void FullCodeGenerator::VisitForTypeofValue(Expression* expr) {
   VariableProxy* proxy = expr->AsVariableProxy();
   DCHECK(!context()->IsEffect());
   DCHECK(!context()->IsTest());
 
   if (proxy != NULL && proxy->var()->IsUnallocated()) {
     Comment cmnt(masm_, "[ Global variable");
-    __ mov(LoadIC::ReceiverRegister(), GlobalObjectOperand());
-    __ mov(LoadIC::NameRegister(), Immediate(proxy->name()));
+    __ mov(LoadConvention::ReceiverRegister(), GlobalObjectOperand());
+    __ mov(LoadConvention::NameRegister(), Immediate(proxy->name()));
     if (FLAG_vector_ics) {
-      __ mov(LoadIC::SlotRegister(),
+      __ mov(VectorLoadConvention::SlotRegister(),
              Immediate(Smi::FromInt(proxy->VariableFeedbackSlot())));
     }
     // Use a regular load, not a contextual load, to avoid a reference
     // error.
     CallLoadIC(NOT_CONTEXTUAL);
     PrepareForBailout(expr, TOS_REG);
     context()->Plug(eax);
   } else if (proxy != NULL && proxy->var()->IsLookupSlot()) {
     Comment cmnt(masm_, "[ Lookup slot");
     Label done, slow;
@@ skipping 409 matching lines @@
   DCHECK_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(),
             Assembler::target_address_at(call_target_address,
                                          unoptimized_code));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32