gcc/testsuite/gcc.dg/tree-ssa/modref-7.c

   1 /* { dg-options "-O2 --param modref-max-accesses=1 -fdump-tree-modref1"  } */
   2 /* { dg-do compile } */
   3 struct a {
   4   int array[10];
   5   int tail;
   6 };
   7 int test(struct a *a, int p)
   8 {
   9   a->array[p] = 0;
  10   a->array[0] = 1;
  11 }
  12 /* All three accesses combine to one bigger access.  */
  13 /* { dg-final { scan-tree-dump-not "--param modref-max-accesses" "modref1" } } */