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

// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
#include <pthread.h>
#include <stdio.h>

extern "C" void AnnotateIgnoreSyncBegin(const char*, int);
extern "C" void AnnotateIgnoreSyncEnd(const char*, int);

int Global;
pthread_mutex_t Mutex = PTHREAD_MUTEX_INITIALIZER;

void *Thread(void *x) {
  AnnotateIgnoreSyncBegin(0, 0);
  pthread_mutex_lock(&Mutex);
  Global++;
  pthread_mutex_unlock(&Mutex);
  AnnotateIgnoreSyncEnd(0, 0);
  return 0;
}

int main() {
  pthread_t t;
  pthread_create(&t, 0, Thread, 0);
  pthread_mutex_lock(&Mutex);
  Global++;
  pthread_mutex_unlock(&Mutex);
  pthread_join(t, 0);
}

// CHECK: WARNING: ThreadSanitizer: data race
Commit	Line	Data
92a42be0	1	// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t \| FileCheck %s
1a4d82fc JJ	2	#include <pthread.h>
	3	#include <stdio.h>
	4
	5	extern "C" void AnnotateIgnoreSyncBegin(const char*, int);
	6	extern "C" void AnnotateIgnoreSyncEnd(const char*, int);
	7
	8	int Global;
	9	pthread_mutex_t Mutex = PTHREAD_MUTEX_INITIALIZER;
	10
	11	void Thread(void x) {
	12	AnnotateIgnoreSyncBegin(0, 0);
	13	pthread_mutex_lock(&Mutex);
	14	Global++;
	15	pthread_mutex_unlock(&Mutex);
	16	AnnotateIgnoreSyncEnd(0, 0);
	17	return 0;
	18	}
	19
	20	int main() {
	21	pthread_t t;
	22	pthread_create(&t, 0, Thread, 0);
	23	pthread_mutex_lock(&Mutex);
	24	Global++;
	25	pthread_mutex_unlock(&Mutex);
	26	pthread_join(t, 0);
	27	}
	28
	29	// CHECK: WARNING: ThreadSanitizer: data race
	30