Index: test/profile/Inputs/instrprof-merge-match.c
===================================================================
--- test/profile/Inputs/instrprof-merge-match.c
+++ test/profile/Inputs/instrprof-merge-match.c
@@ -20,7 +20,7 @@
 
 int main(int argc, const char *argv[]) {
   const uint64_t MaxSize = 10000;
-  static char Buffer[MaxSize];
+  static char Buffer[MaxSize] __attribute__((aligned(sizeof(uint64_t))));
 
   uint64_t Size = __llvm_profile_get_size_for_buffer();
   if (Size > MaxSize)
Index: test/profile/instrprof-merge.c
===================================================================
--- test/profile/instrprof-merge.c
+++ test/profile/instrprof-merge.c
@@ -41,7 +41,7 @@
     return 1;
 
   const uint64_t MaxSize = 10000;
-  static char Buffer[MaxSize];
+  static char Buffer[MaxSize] __attribute__((aligned(sizeof(uint64_t))));
 
   uint64_t Size = __llvm_profile_get_size_for_buffer();
   if (Size > MaxSize)