1*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
2*bcaeed49SFangrui Song #include <pthread.h>
3*bcaeed49SFangrui Song #include <stdlib.h>
4*bcaeed49SFangrui Song #include <stdio.h>
5*bcaeed49SFangrui Song 
6*bcaeed49SFangrui Song struct Cache {
7*bcaeed49SFangrui Song   int x;
CacheCache8*bcaeed49SFangrui Song   explicit Cache(int x)
9*bcaeed49SFangrui Song     : x(x) {
10*bcaeed49SFangrui Song   }
11*bcaeed49SFangrui Song };
12*bcaeed49SFangrui Song 
foo(Cache * my)13*bcaeed49SFangrui Song void foo(Cache *my) {
14*bcaeed49SFangrui Song   static Cache *c = my ? my : new Cache(rand());
15*bcaeed49SFangrui Song   if (c->x >= RAND_MAX)
16*bcaeed49SFangrui Song     exit(1);
17*bcaeed49SFangrui Song }
18*bcaeed49SFangrui Song 
Thread(void * x)19*bcaeed49SFangrui Song void *Thread(void *x) {
20*bcaeed49SFangrui Song   foo(new Cache(rand()));
21*bcaeed49SFangrui Song   return 0;
22*bcaeed49SFangrui Song }
23*bcaeed49SFangrui Song 
main()24*bcaeed49SFangrui Song int main() {
25*bcaeed49SFangrui Song   pthread_t t[2];
26*bcaeed49SFangrui Song   pthread_create(&t[0], 0, Thread, 0);
27*bcaeed49SFangrui Song   pthread_create(&t[1], 0, Thread, 0);
28*bcaeed49SFangrui Song   pthread_join(t[0], 0);
29*bcaeed49SFangrui Song   pthread_join(t[1], 0);
30*bcaeed49SFangrui Song   fprintf(stderr, "PASS\n");
31*bcaeed49SFangrui Song }
32*bcaeed49SFangrui Song 
33*bcaeed49SFangrui Song // CHECK-NOT: WARNING: ThreadSanitizer: data race
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