1  /* { dg-options "-O2 --param modref-max-adjustments=8 -fdump-tree-modref1 -fno-optimize-sibling-calls"  } */
       2  /* { dg-do compile } */
       3  void
       4  set (char *p)
       5  {
       6     p[1]=1;
       7     p[0]=0;
       8     p[2]=2;
       9     p[4]=4;
      10     p[3]=3;
      11  }
      12  
      13  void
      14  recurse (char *p, int n)
      15  {
      16  	*p = 0;
      17  	if (n)
      18  	  recurse (p+1,n-1);
      19  }
      20  /* { dg-final { scan-tree-dump-not "--param modref-max-accesses" "modref1" } } */
      21  /* { dg-final { scan-tree-dump "--param modref-max-adjustments" "modref1" } } */
      22  /* In set all accesses should merge together.  */
      23  /* { dg-final { scan-tree-dump "access: Parm 0 param offset:0 offset:0 size:8 max_size:40" "modref1" } } */
      24  /* In recurse we should cap the recrusion after 8 attempts and set max_size to -1.  */
      25  /* { dg-final { scan-tree-dump "access: Parm 0 param offset:0 offset:0 size:8 max_size:-1 adjusted 8 times" "modref1" } } */