+++ /dev/null
-/* Test that __builtin_prefetch does no harm.
-
- Prefetch data using a variety of storage classes and address
- expressions. */
-
-int glob_int_arr[100];
-int *glob_ptr_int = glob_int_arr;
-int glob_int = 4;
-
-static stat_int_arr[100];
-static int *stat_ptr_int = stat_int_arr;
-static int stat_int;
-
-struct S {
- int a;
- short b, c;
- char d[8];
- struct S *next;
-};
-
-struct S str;
-struct S *ptr_str = &str;
-
-/* Prefetch global variables using the address of the variable. */
-
-void
-simple_global ()
-{
- __builtin_prefetch (glob_int_arr, 0, 0);
- __builtin_prefetch (glob_ptr_int, 0, 0);
- __builtin_prefetch (&glob_int, 0, 0);
-}
-
-/* Prefetch file-level static variables using the address of the variable. */
-
-void
-simple_file ()
-{
- __builtin_prefetch (stat_int_arr, 0, 0);
- __builtin_prefetch (stat_ptr_int, 0, 0);
- __builtin_prefetch (&stat_int, 0, 0);
-}
-
-/* Prefetch local static variables using the address of the variable. */
-
-void
-simple_static_local ()
-{
- static int gx[100];
- static int *hx = gx;
- static int ix;
- __builtin_prefetch (gx, 0, 0);
- __builtin_prefetch (hx, 0, 0);
- __builtin_prefetch (&ix, 0, 0);
-}
-
-/* Prefetch local stack variables using the address of the variable. */
-
-void
-simple_local ()
-{
- int gx[100];
- int *hx = gx;
- int ix;
- __builtin_prefetch (gx, 0, 0);
- __builtin_prefetch (hx, 0, 0);
- __builtin_prefetch (&ix, 0, 0);
-}
-
-/* Prefetch arguments using the address of the variable. */
-
-void
-simple_arg (int g[100], int *h, int i)
-{
- __builtin_prefetch (g, 0, 0);
- __builtin_prefetch (h, 0, 0);
- __builtin_prefetch (&i, 0, 0);
-}
-
-/* Prefetch using address expressions involving global variables. */
-
-void
-expr_global (void)
-{
- __builtin_prefetch (&str, 0, 0);
- __builtin_prefetch (ptr_str, 0, 0);
- __builtin_prefetch (&str.b, 0, 0);
- __builtin_prefetch (&ptr_str->b, 0, 0);
- __builtin_prefetch (&str.d, 0, 0);
- __builtin_prefetch (&ptr_str->d, 0, 0);
- __builtin_prefetch (str.next, 0, 0);
- __builtin_prefetch (ptr_str->next, 0, 0);
- __builtin_prefetch (str.next->d, 0, 0);
- __builtin_prefetch (ptr_str->next->d, 0, 0);
-
- __builtin_prefetch (&glob_int_arr, 0, 0);
- __builtin_prefetch (glob_ptr_int, 0, 0);
- __builtin_prefetch (&glob_int_arr[2], 0, 0);
- __builtin_prefetch (&glob_ptr_int[3], 0, 0);
- __builtin_prefetch (glob_int_arr+3, 0, 0);
- __builtin_prefetch (glob_int_arr+glob_int, 0, 0);
- __builtin_prefetch (glob_ptr_int+5, 0, 0);
- __builtin_prefetch (glob_ptr_int+glob_int, 0, 0);
-}
-
-/* Prefetch using address expressions involving local variables. */
-
-void
-expr_local (void)
-{
- int b[10];
- int *pb = b;
- struct S t;
- struct S *pt = &t;
- int j = 4;
-
- __builtin_prefetch (&t, 0, 0);
- __builtin_prefetch (pt, 0, 0);
- __builtin_prefetch (&t.b, 0, 0);
- __builtin_prefetch (&pt->b, 0, 0);
- __builtin_prefetch (&t.d, 0, 0);
- __builtin_prefetch (&pt->d, 0, 0);
- __builtin_prefetch (t.next, 0, 0);
- __builtin_prefetch (pt->next, 0, 0);
- __builtin_prefetch (t.next->d, 0, 0);
- __builtin_prefetch (pt->next->d, 0, 0);
-
- __builtin_prefetch (&b, 0, 0);
- __builtin_prefetch (pb, 0, 0);
- __builtin_prefetch (&b[2], 0, 0);
- __builtin_prefetch (&pb[3], 0, 0);
- __builtin_prefetch (b+3, 0, 0);
- __builtin_prefetch (b+j, 0, 0);
- __builtin_prefetch (pb+5, 0, 0);
- __builtin_prefetch (pb+j, 0, 0);
-}
-
-int
-main ()
-{
- simple_global ();
- simple_file ();
- simple_static_local ();
- simple_local ();
- simple_arg (glob_int_arr, glob_ptr_int, glob_int);
-
- str.next = &str;
- expr_global ();
- expr_local ();
-
- exit (0);
-}