From dee68ba6e315f1b92ac84cd3e8fed3fe6b90ace3 Mon Sep 17 00:00:00 2001
From: Dmitry Vyukov <dvyukov@google.com>
Date: Fri, 30 May 2014 14:27:31 +0000
Subject: [PATCH] tsan: add a test from data-race-test suite:
 https://code.google.com/p/data-race-test/source/browse/trunk/unittest/racecheck_unittest.cc

llvm-svn: 209900
---
 compiler-rt/test/tsan/race_on_puts.cc | 29 +++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 compiler-rt/test/tsan/race_on_puts.cc

diff --git a/compiler-rt/test/tsan/race_on_puts.cc b/compiler-rt/test/tsan/race_on_puts.cc
new file mode 100644
index 000000000000..1f2b4db836ed
--- /dev/null
+++ b/compiler-rt/test/tsan/race_on_puts.cc
@@ -0,0 +1,29 @@
+// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
+#include <pthread.h>
+#include <stdio.h>
+#include <unistd.h>
+
+char s[] = "abracadabra";
+
+void *Thread0(void *p) {
+  puts(s);
+  return 0;
+}
+
+void *Thread1(void *p) {
+  s[3] = 'z';
+  return 0;
+}
+
+int main() {
+  pthread_t th[2];
+  pthread_create(&th[0], 0, Thread0, 0);
+  pthread_create(&th[1], 0, Thread1, 0);
+  pthread_join(th[0], 0);
+  pthread_join(th[1], 0);
+  fprintf(stderr, "DONE");
+}
+
+// CHECK: WARNING: ThreadSanitizer: data race
+// CHECK: DONE
+