Import compiler-rt trunk r224034.vendor/compiler-rt/compiler-rt-r224034

https://llvm.org/svn/llvm-project/compiler-rt/trunk@224034

1 files changed, 29 insertions, 0 deletions

diff --git a/test/tsan/simple_race.c b/test/tsan/simple_race.c
new file mode 100644
index 000000000000..7b60c5ec249e
--- /dev/null
+++ b/test/tsan/simple_race.c
@@ -0,0 +1,29 @@
+// RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
+#include <pthread.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int Global;
+
+void *Thread1(void *x) {
+  sleep(1);
+  Global = 42;
+  return NULL;
+}
+
+void *Thread2(void *x) {
+  Global = 43;
+  return NULL;
+}
+
+int main() {
+  pthread_t t[2];
+  pthread_create(&t[0], NULL, Thread1, NULL);
+  pthread_create(&t[1], NULL, Thread2, NULL);
+  pthread_join(t[0], NULL);
+  pthread_join(t[1], NULL);
+  return 0;
+}
+
+// CHECK: WARNING: ThreadSanitizer: data race
+