test/tsan/suppress_same_stacks.cc

   1 // RUN: %clangxx_tsan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
   2 #include <pthread.h>
   3
   4 volatile int N;  // Prevent loop unrolling.
   5 int **data;
   6
   7 void *Thread1(void *x) {
   8   for (int i = 0; i < N; i++)
   9     data[i][0] = 42;
  10   return 0;
  11 }
  12
  13 int main() {
  14   N = 4;
  15   data = new int*[N];
  16   for (int i = 0; i < N; i++)
  17     data[i] = new int;
  18   pthread_t t;
  19   pthread_create(&t, 0, Thread1, 0);
  20   Thread1(0);
  21   pthread_join(t, 0);
  22   for (int i = 0; i < N; i++)
  23     delete data[i];
  24   delete[] data;
  25 }
  26
  27 // CHECK: ThreadSanitizer: reported 1 warnings