1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-dse1-details"  } */
       3  volatile int *ptr;
       4  struct a {
       5  	int a,b,c;
       6  } a;
       7  __attribute__((noinline))
       8  static int init (struct a*a)
       9  {
      10  	a->a=0;
      11  	a->b=1;
      12  }
      13  __attribute__((noinline))
      14  static int use (struct a*a)
      15  {
      16  	if (a->c != 3)
      17  		*ptr=5;
      18  }
      19  
      20  void
      21  main(void)
      22  {
      23  	struct a a;
      24  	init (&a);
      25  	a.c=3;
      26  	use (&a);
      27  }
      28  /* { dg-final { scan-tree-dump "Deleted dead store: init" "dse1" } } */