1 files changed, 6 insertions, 1 deletions
diff --git a/deps/v8/src/objects/js-regexp-inl.h b/deps/v8/src/objects/js-regexp-inl.h
index a6f59468fd2..37f39dfb4fd 100644
--- a/deps/v8/src/objects/js-regexp-inl.h
+++ b/deps/v8/src/objects/js-regexp-inl.h
@@ -34,7 +34,7 @@ JSRegExp::Type JSRegExp::TypeTag() const {
   return static_cast<JSRegExp::Type>(smi.value());
 }
 
-int JSRegExp::CaptureCount() {
+int JSRegExp::CaptureCount() const {
   switch (TypeTag()) {
     case ATOM:
       return 0;
@@ -45,6 +45,11 @@ int JSRegExp::CaptureCount() {
   }
 }
 
+int JSRegExp::MaxRegisterCount() const {
+  CHECK_EQ(TypeTag(), IRREGEXP);
+  return Smi::ToInt(DataAt(kIrregexpMaxRegisterCountIndex));
+}
+
 JSRegExp::Flags JSRegExp::GetFlags() {
   DCHECK(this->data().IsFixedArray());
   Object data = this->data();