1// RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
2#include "test.h"
3
4extern "C" {
5void AnnotateIgnoreReadsBegin(const char *f, int l);
6void AnnotateIgnoreReadsEnd(const char *f, int l);
7void AnnotateIgnoreWritesBegin(const char *f, int l);
8void AnnotateIgnoreWritesEnd(const char *f, int l);
9}
10
11void *Thread(void *p) {
12  *(int*)p = 42;
13  barrier_wait(&barrier);
14  return 0;
15}
16
17int main() {
18  barrier_init(&barrier, 2);
19  int *p = new int(0);
20  pthread_t t;
21  pthread_create(&t, 0, Thread, p);
22  barrier_wait(&barrier);
23  AnnotateIgnoreReadsBegin(__FILE__, __LINE__);
24  AnnotateIgnoreWritesBegin(__FILE__, __LINE__);
25  free(p);
26  AnnotateIgnoreReadsEnd(__FILE__, __LINE__);
27  AnnotateIgnoreWritesEnd(__FILE__, __LINE__);
28  pthread_join(t, 0);
29  fprintf(stderr, "OK\n");
30  return 0;
31}
32
33// CHECK-NOT: WARNING: ThreadSanitizer: data race
34// CHECK: OK
35