diff --git a/src/list-inl.h b/src/list-inl.h
index 80bccc9..7c2c83f 100644
--- a/src/list-inl.h
+++ b/src/list-inl.h
@@ -72,9 +72,9 @@
 template<typename T, class P>
 void List<T, P>::ResizeAddInternal(const T& element) {
   ASSERT(length_ >= capacity_);
-  // Grow the list capacity by 50%, but make sure to let it grow
+  // Grow the list capacity by 100%, but make sure to let it grow
   // even when the capacity is zero (possible initial case).
-  int new_capacity = 1 + capacity_ + (capacity_ >> 1);
+  int new_capacity = 1 + 2 * capacity_;
   // Since the element reference could be an element of the list, copy
   // it out of the old backing storage before resizing.
   T temp = element;
@@ -216,11 +216,11 @@
     int mid = (low + high) / 2;
     T mid_elem = list[mid];
 
-    if (mid_elem > elem) {
+    if (cmp(&mid_elem, &elem) > 0) {
       high = mid - 1;
       continue;
     }
-    if (mid_elem < elem) {
+    if (cmp(&mid_elem, &elem) < 0) {
       low = mid + 1;
       continue;
     }
@@ -236,6 +236,7 @@
   return SortedListBSearch<T>(list, elem, PointerValueCompare<T>);
 }
 
+
 } }  // namespace v8::internal
 
 #endif  // V8_LIST_INL_H_