compiler-rt/test/tsan/sleep_sync2.cpp

   1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
   2 #include "test.h"
   3
   4 int X = 0;
   5
   6 void *Thread(void *p) {
   7   X = 42;
   8   barrier_wait(&barrier);
   9   return 0;
  10 }
  11
  12 int main() {
  13   barrier_init(&barrier, 2);
  14   pthread_t t;
  15   sleep(1);  // must not appear in the report
  16   pthread_create(&t, 0, Thread, 0);
  17   barrier_wait(&barrier);
  18   X = 43;
  19   pthread_join(t, 0);
  20   return 0;
  21 }
  22
  23 // CHECK: WARNING: ThreadSanitizer: data race
  24 // CHECK-NOT: As if synchronized via sleep