1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-optimized" } */
       3  
       4  
       5  static int t;
       6  
       7  int f (int *a)
       8  {
       9    int t1, t2 = 0;
      10    asm ("shouldshowupstill %1" : "=r" (t1), "=m"(t2) : : );
      11    t = t1;
      12    return t2;
      13  }
      14  
      15  /* Check to make sure DCE does not remove the inline-asm as it writes to t2. */
      16  /* We used to DCE this inline-asm when removing the store to t. */
      17  /* { dg-final { scan-assembler "shouldshowupstill" } } */
      18  /* { dg-final { scan-tree-dump-times "shouldshowupstill" 1 "optimized" } } */