unbreak unnecessary dependency on 64-bit atomics
This unbreaks builds on 32-bit arms and mipsen.
diff --git a/src/tests/profile-handler_unittest.cc b/src/tests/profile-handler_unittest.cc
index 3531bef..06efb34 100644
--- a/src/tests/profile-handler_unittest.cc
+++ b/src/tests/profile-handler_unittest.cc
@@ -39,8 +39,8 @@
// unregister callbacks without deadlocking. Thus this
// "infrastructure" below.
namespace {
-std::atomic<uint64_t> allocate_count;
-std::atomic<uint64_t> free_count;
+std::atomic<intptr_t> allocate_count;
+std::atomic<intptr_t> free_count;
// We also "frob" this lock down in BusyThread.
Mutex allocate_lock;