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1// RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s2#include <pthread.h>3#include <stdlib.h>4#include <stdio.h>5#include <sched.h>6 7struct Cache {8  int x;9  explicit Cache(int x)10    : x(x) {11  }12};13 14void *AsyncInit(void *p) {15  return new Cache((int)(long)p);16}17 18Cache *CreateCache() {19  pthread_t t;20  pthread_create(&t, 0, AsyncInit, (void*)(long)rand());21  void *res;22  pthread_join(t, &res);23  return (Cache*)res;24}25 26void *Thread1(void *x) {27  static Cache *c = CreateCache();28  if (c->x >= RAND_MAX)29    exit(1);30  return 0;31}32 33int main() {34  pthread_t t[2];35  pthread_create(&t[0], 0, Thread1, 0);36  pthread_create(&t[1], 0, Thread1, 0);37  pthread_join(t[0], 0);38  pthread_join(t[1], 0);39  fprintf(stderr, "PASS\n");40}41 42// CHECK-NOT: WARNING: ThreadSanitizer: data race43