1 files changed, 6 insertions, 0 deletions
diff --git a/runtime/utils.h b/runtime/utils.h
index 0c11610..cd04c3f 100644
--- a/runtime/utils.h
+++ b/runtime/utils.h
@@ -289,6 +289,12 @@ static constexpr int CTZ(T x) {
 }
 
 template<typename T>
+static inline int WhichPowerOf2(T x) {
+  DCHECK((x != 0) && IsPowerOfTwo(x));
+  return CTZ(x);
+}
+
+template<typename T>
 static constexpr int POPCOUNT(T x) {
   return (sizeof(T) == sizeof(uint32_t))
       ? __builtin_popcount(x)