compiler-rt/test/tsan/stack_race2.cpp

   1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
   2 #include "test.h"
   3
   4 void *Thread2(void *a) {
   5   barrier_wait(&barrier);
   6   *(int*)a = 43;
   7   return 0;
   8 }
   9
  10 void *Thread(void *a) {
  11   int Var = 42;
  12   pthread_t t;
  13   pthread_create(&t, 0, Thread2, &Var);
  14   Var = 42;
  15   barrier_wait(&barrier);
  16   pthread_join(t, 0);
  17   return 0;
  18 }
  19
  20 int main() {
  21   barrier_init(&barrier, 2);
  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 stack of thread T1.
  29