Index: test/asan/TestCases/Posix/tsd_dtor_leak.cc
===================================================================
--- test/asan/TestCases/Posix/tsd_dtor_leak.cc
+++ test/asan/TestCases/Posix/tsd_dtor_leak.cc
@@ -34,6 +34,11 @@
     fprintf(stderr, "heap size: new: %zd old: %zd\n", new_heap_size, old_heap_size);
     if (old_heap_size)
       assert(old_heap_size == new_heap_size);
+#if defined(__FreeBSD__)
+    if (i > 0)
+      old_heap_size = new_heap_size;
+#else
     old_heap_size = new_heap_size;
+#endif
   }
 }