Patch (SSE3) for faster To(U)Int32 conversion in bit

test/cctest/test-serialize.cc

 // Copyright 2007-2008 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 139 matching lines @@
 static void Serialize() {
 #ifdef DEBUG
   FLAG_debug_serialization = true;
 #endif
   StatsTable::SetCounterFunction(counter_function);
 
   v8::HandleScope scope;
   const int kExtensionCount = 1;
   const char* extension_list[kExtensionCount] = { "v8/gc" };
   v8::ExtensionConfiguration extensions(kExtensionCount, extension_list);
+  Serializer::Enable();
   v8::Persistent<v8::Context> env = v8::Context::New(&extensions);
   env->Enter();
 
   Snapshot::WriteToFile(FLAG_testing_serialization_file);
 }
 
 
 // Test that the whole heap can be serialized when running from the
 // internal snapshot.
 // (Smoke test.)
@@ skipping 10 matching lines @@
   if (Snapshot::IsEnabled()) return;
   Serialize();
 }
 
 
 // Test that the heap isn't destroyed after a serialization.
 TEST(SerializeNondestructive) {
   if (Snapshot::IsEnabled()) return;
   StatsTable::SetCounterFunction(counter_function);
   v8::HandleScope scope;
+  Serializer::Enable();
   v8::Persistent<v8::Context> env = v8::Context::New();
   v8::Context::Scope context_scope(env);
   Serializer().Serialize();
   const char* c_source = "\"abcd\".charAt(2) == 'c'";
   v8::Local<v8::String> source = v8::String::New(c_source);
   v8::Local<v8::Script> script = v8::Script::Compile(source);
   v8::Local<v8::Value> value = script->Run();
   CHECK(value->BooleanValue());
 }
 
@@ skipping 57 matching lines @@
 DEPENDENT_TEST(DeserializeExtensions, Serialize) {
   v8::HandleScope scope;
 
   Deserialize();
   const char* c_source = "gc();";
   v8::Local<v8::String> source = v8::String::New(c_source);
   v8::Local<v8::Script> script = v8::Script::Compile(source);
   v8::Local<v8::Value> value = script->Run();
   CHECK(value->IsUndefined());
 }