Index: lib/Fuzzer/test/LoadTest.cpp
===================================================================
--- lib/Fuzzer/test/LoadTest.cpp
+++ lib/Fuzzer/test/LoadTest.cpp
@@ -14,7 +14,7 @@
 
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
   if (Size < 8) return 0;
-  size_t a = 0;
+  uint64_t a = 0;
   memcpy(&a, Data, 8);
   Sink = array[a % (kArraySize + 1)];
   return 0;