File: ignore_sync.cpp

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llvm-toolchain-19 1%3A19.1.7-3
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// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
#include "test.h"

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