1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fcompare-debug" } */
       3  
       4  int a;
       5  _Thread_local int b;
       6  void c()
       7  {
       8    long d = b;
       9    a = 0;
      10    b = 0;
      11  }