1  /* PR33315 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O2 -fdump-tree-sink" } */
       4  
       5  int num;
       6  int a[20];
       7  
       8  void test ()
       9  {
      10    int i;
      11    int *ptr;
      12    ptr = & a[0];
      13    i = num;
      14    if ( i == 1) *(ptr+0) = 0;
      15    if ( i != 1) *(ptr+0) = 0;
      16    if ( i == 2) *(ptr+1) = 0;
      17    if ( i != 2) *(ptr+1) = 0;
      18    if ( i == 3) *(ptr+2) = 0;
      19    if ( i != 3) *(ptr+2) = 0;
      20  }
      21  
      22  /* We should sink/merge all stores and end up with a single BB.  */
      23  
      24  /* { dg-final { scan-tree-dump-times "MEM\[^\n\r\]* = 0;" 3 "sink1" } } */
      25  /* { dg-final { scan-tree-dump-times "<bb " 1 "sink1" } } */