compiler-rt/test/tsan/halt_on_error.cpp

   1 // RUN: %clang_tsan -O1 %s -o %t && %env_tsan_opts=halt_on_error=1 %deflake %run %t | FileCheck %s
   2 #include "test.h"
   3
   4 int X;
   5
   6 void *Thread(void *x) {
   7   barrier_wait(&barrier);
   8   X = 42;
   9   return 0;
  10 }
  11
  12 int main() {
  13   barrier_init(&barrier, 2);
  14   fprintf(stderr, "BEFORE\n");
  15   pthread_t t;
  16   pthread_create(&t, 0, Thread, 0);
  17   X = 43;
  18   barrier_wait(&barrier);
  19   pthread_join(t, 0);
  20   fprintf(stderr, "AFTER\n");
  21   return 0;
  22 }
  23
  24 // CHECK: BEFORE
  25 // CHECK: WARNING: ThreadSanitizer: data race
  26 // CHECK-NOT: AFTER
  27