--- a/folly/Malloc.h	Mon Oct 09 04:35:09 2017
+++ b/folly/Malloc.h	Fri Oct 13 15:31:36 2017
@@ -189,9 +189,6 @@
       return false;
     }
 
-    /* Avoid optimizing away the malloc.  */
-    asm volatile("" ::"m"(ptr) : "memory");
-
     return (origAllocated != *counter);
   }();