diff --git a/common.gypi b/common.gypi
index c96c8ef5eb06df..074a6cdf8f6c19 100644
--- a/common.gypi
+++ b/common.gypi
@@ -38,7 +38,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.7',
+    'v8_embedder_string': '-node.8',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/builtins/setup-builtins-internal.cc b/deps/v8/src/builtins/setup-builtins-internal.cc
index 7188eb04a8c8bd..3c637db63683d6 100644
--- a/deps/v8/src/builtins/setup-builtins-internal.cc
+++ b/deps/v8/src/builtins/setup-builtins-internal.cc
@@ -276,6 +276,10 @@ Code GenerateBytecodeHandler(Isolate* isolate, int builtin_index,
 
 }  // namespace
 
+#ifdef _MSC_VER
+#pragma optimize( "", off )
+#endif
+
 // static
 void SetupIsolateDelegate::SetupBuiltinsInternal(Isolate* isolate) {
   Builtins* builtins = isolate->builtins();
@@ -353,5 +357,10 @@ void SetupIsolateDelegate::SetupBuiltinsInternal(Isolate* isolate) {
   builtins->MarkInitialized();
 }
 
+#ifdef _MSC_VER
+#pragma optimize( "", on )
+#endif
+
+
 }  // namespace internal
 }  // namespace v8