Optimize %IsConstructCall() on IA-32.

src/v8natives.js

 // Copyright 2006-2008 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 136 matching lines @@
 
 function SetupGlobal() {
   // ECMA 262 - 15.1.1.1.
   %SetProperty(global, "NaN", $NaN, DONT_ENUM | DONT_DELETE);
 
   // ECMA-262 - 15.1.1.2.
   %SetProperty(global, "Infinity", 1/0, DONT_ENUM | DONT_DELETE);
 
   // ECMA-262 - 15.1.1.3.
   %SetProperty(global, "undefined", void 0, DONT_ENUM | DONT_DELETE);
-  
+
   // Setup non-enumerable function on the global object.
   InstallFunctions(global, DONT_ENUM, $Array(
     "isNaN", GlobalIsNaN,
     "isFinite", GlobalIsFinite,
     "parseInt", GlobalParseInt,
     "parseFloat", GlobalParseFloat,
     "eval", GlobalEval,
     "execScript", GlobalExecScript
   ));
 }
 
 SetupGlobal();
 
 
 // ----------------------------------------------------------------------------
 // Boolean (first part of definition)
 
 
 %SetCode($Boolean, function(x) {
-  if (%IsConstructCall()) {
+  if (%_IsConstructCall()) {
     %_SetValueOf(this, ToBoolean(x));
   } else {
     return ToBoolean(x);
   }
 });
 
 %FunctionSetPrototype($Boolean, new $Boolean(false));
 
 %SetProperty($Boolean.prototype, "constructor", $Boolean, DONT_ENUM);
 
@@ skipping 78 matching lines @@
 
 function ObjectLookupSetter(name) {
   if (this == null) {
     throw new $TypeError('Object.prototype.__lookupSetter__: this is Null');
   }
   return %LookupAccessor(ToObject(this), ToString(name), SETTER);
 }
 
 
 %SetCode($Object, function(x) {
-  if (%IsConstructCall()) {
+  if (%_IsConstructCall()) {
     if (x == null) return this;
     return ToObject(x);
   } else {
     if (x == null) return { };
     return ToObject(x);
   }
 });
 
 
 // ----------------------------------------------------------------------------
@@ skipping 56 matching lines @@
 }
 
 SetupBoolean();
 
 // ----------------------------------------------------------------------------
 // Number
 
 // Set the Number function and constructor.
 %SetCode($Number, function(x) {
   var value = %_ArgumentsLength() == 0 ? 0 : ToNumber(x);
-  if (%IsConstructCall()) {
+  if (%_IsConstructCall()) {
     %_SetValueOf(this, value);
   } else {
     return value;
   }
 });
 
 %FunctionSetPrototype($Number, new $Number(0));
 
 // ECMA-262 section 15.7.4.2.
 function NumberToString(radix) {
@@ skipping 199 matching lines @@
 
 // ----------------------------------------------------------------------------
 
 function SetupFunction() {
   InstallFunctions($Function.prototype, DONT_ENUM, $Array(
     "toString", FunctionToString
   ));
 }
 
 SetupFunction();
-