[rustc.git] / src / compiler-rt / test / tsan / tls_race2.cc

// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
#include "test.h"

void *Thread2(void *a) {
  barrier_wait(&barrier);
  *(int*)a = 43;
  return 0;
}

void *Thread(void *a) {
  static __thread int Var = 42;
  pthread_t t;
  pthread_create(&t, 0, Thread2, &Var);
  Var = 42;
  barrier_wait(&barrier);
  pthread_join(t, 0);
  return 0;
}

int main() {
  barrier_init(&barrier, 2);
  pthread_t t;
  pthread_create(&t, 0, Thread, 0);
  pthread_join(t, 0);
}

// CHECK: WARNING: ThreadSanitizer: data race
// CHECK:   Location is TLS of thread T1.
Commit	Line	Data
92a42be0 SL	1	// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t \| FileCheck %s
92a42be0 SL	2	#include "test.h"
1a4d82fc JJ	3
1a4d82fc JJ	4	void Thread2(void a) {
92a42be0	5	barrier_wait(&barrier);
1a4d82fc JJ	6	(int)a = 43;
	7	return 0;
	8	}
	9
	10	void Thread(void a) {
	11	static __thread int Var = 42;
	12	pthread_t t;
	13	pthread_create(&t, 0, Thread2, &Var);
	14	Var = 42;
92a42be0	15	barrier_wait(&barrier);
1a4d82fc JJ	16	pthread_join(t, 0);
	17	return 0;
	18	}
	19
	20	int main() {
92a42be0	21	barrier_init(&barrier, 2);
1a4d82fc JJ	22	pthread_t t;
	23	pthread_create(&t, 0, Thread, 0);
	24	pthread_join(t, 0);
	25	}
	26
	27	// CHECK: WARNING: ThreadSanitizer: data race
	28	// CHECK: Location is TLS of thread T1.
	29