1 files changed, 2 insertions, 2 deletions
diff --git a/src/thread_cache.h b/src/thread_cache.h
index 5edcdfb..81a020e 100644
--- a/src/thread_cache.h
+++ b/src/thread_cache.h
@@ -350,7 +350,7 @@ inline void* ThreadCache::Allocate(size_t size, size_t cl) {
   ASSERT(size == Static::sizemap()->ByteSizeForClass(cl));
 
   FreeList* list = &list_[cl];
-  if (list->empty()) {
+  if (UNLIKELY(list->empty())) {
     return FetchFromCentralCache(cl, size);
   }
   size_ -= size;
@@ -374,7 +374,7 @@ inline void ThreadCache::Deallocate(void* ptr, size_t cl) {
   // There are two relatively uncommon things that require further work.
   // In the common case we're done, and in that case we need a single branch
   // because of the bitwise-or trick that follows.
-  if ((list_headroom | size_headroom) < 0) {
+  if (UNLIKELY((list_headroom | size_headroom) < 0)) {
     if (list_headroom < 0) {
       ListTooLong(list, cl);
     }