[TSan] Fix PrintMatchedSuppressions: Read hit count for suppression atomically

Reviewers: dvyukov.
Subscribers: jaydeep, sagar, dsanders, llvm-commits.
Differential Revision: http://reviews.llvm.org/D16845

llvm-svn: 259755

compiler-rt/lib/tsan/rtl/tsan_suppressions.cc

@@ -159,8 +159,8 @@ void PrintMatchedSuppressions() {
   Printf("ThreadSanitizer: Matched %d suppressions (pid=%d):\n", hit_count,
          (int)internal_getpid());
   for (uptr i = 0; i < matched.size(); i++) {
-    Printf("%d %s:%s\n", matched[i]->hit_count, matched[i]->type,
-           matched[i]->templ);
+    Printf("%d %s:%s\n", atomic_load_relaxed(&matched[i]->hit_count),
+           matched[i]->type, matched[i]->templ);
   }
 }
 }  // namespace __tsan