diff --git a/src/common/bit_util.h b/src/common/bit_util.h
index b83fc6ec..25ed3fc3 100644
--- a/src/common/bit_util.h
+++ b/src/common/bit_util.h
@@ -151,6 +151,11 @@ inline size_t LowestSetBit(T value) {
     return result;
 }
 
+template <typename T>
+inline bool MostSignificantBit(T value) {
+    return Bit<BitSize<T>() - 1, T>(value);
+}
+
 template <typename T>
 inline T Replicate(T value, size_t element_size) {
     ASSERT_MSG(BitSize<T>() % element_size == 0, "bitsize of T not divisible by element_size");