drd/tests/annotate_trace_memory: Make this test more ARM/PPC friendly (#318643)

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13406 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/drd/tests/annotate_trace_memory.c b/drd/tests/annotate_trace_memory.c
index 697f0a8..f539336 100644
--- a/drd/tests/annotate_trace_memory.c
+++ b/drd/tests/annotate_trace_memory.c
@@ -32,10 +32,10 @@
   i16++;
   fprintf(stderr, "uint32_t\n");
   i32 = 8;
-  __sync_add_and_fetch(&i32, 1);
+  i32++;
   fprintf(stderr, "uint64_t\n");
   i64 = 9;
-  __sync_add_and_fetch(&i64, 0x12345678ULL);
+  i64 += 0x12345678ULL;
 
   DRD_STOP_TRACING_VAR(f);
   DRD_STOP_TRACING_VAR(d);