+++ /dev/null
-/* Test that __builtin_prefetch does no harm.
-
- Prefetch data using a variety of storage classes and address
- expressions with volatile variables and pointers. */
-
-int glob_int_arr[100];
-int glob_int = 4;
-volatile int glob_vol_int_arr[100];
-int * volatile glob_vol_ptr_int = glob_int_arr;
-volatile int *glob_ptr_vol_int = glob_vol_int_arr;
-volatile int * volatile glob_vol_ptr_vol_int = glob_vol_int_arr;
-volatile int glob_vol_int;
-
-static stat_int_arr[100];
-static volatile int stat_vol_int_arr[100];
-static int * volatile stat_vol_ptr_int = stat_int_arr;
-static volatile int *stat_ptr_vol_int = stat_vol_int_arr;
-static volatile int * volatile stat_vol_ptr_vol_int = stat_vol_int_arr;
-static volatile int stat_vol_int;
-
-struct S {
- int a;
- short b, c;
- char d[8];
- struct S *next;
-};
-
-struct S str;
-volatile struct S vol_str;
-struct S * volatile vol_ptr_str = &str;
-volatile struct S *ptr_vol_str = &vol_str;
-volatile struct S * volatile vol_ptr_vol_str = &vol_str;
-
-/* Prefetch volatile global variables using the address of the variable. */
-
-void
-simple_vol_global ()
-{
- __builtin_prefetch (glob_vol_int_arr, 0, 0);
- __builtin_prefetch (glob_vol_ptr_int, 0, 0);
- __builtin_prefetch (glob_ptr_vol_int, 0, 0);
- __builtin_prefetch (glob_vol_ptr_vol_int, 0, 0);
- __builtin_prefetch (&glob_vol_int, 0, 0);
-}
-
-/* Prefetch volatile static variables using the address of the variable. */
-
-void
-simple_vol_file ()
-{
- __builtin_prefetch (stat_vol_int_arr, 0, 0);
- __builtin_prefetch (stat_vol_ptr_int, 0, 0);
- __builtin_prefetch (stat_ptr_vol_int, 0, 0);
- __builtin_prefetch (stat_vol_ptr_vol_int, 0, 0);
- __builtin_prefetch (&stat_vol_int, 0, 0);
-}
-
-/* Prefetch using address expressions involving volatile global variables. */
-
-void
-expr_vol_global (void)
-{
- __builtin_prefetch (&vol_str, 0, 0);
- __builtin_prefetch (ptr_vol_str, 0, 0);
- __builtin_prefetch (vol_ptr_str, 0, 0);
- __builtin_prefetch (vol_ptr_vol_str, 0, 0);
- __builtin_prefetch (&vol_str.b, 0, 0);
- __builtin_prefetch (&ptr_vol_str->b, 0, 0);
- __builtin_prefetch (&vol_ptr_str->b, 0, 0);
- __builtin_prefetch (&vol_ptr_vol_str->b, 0, 0);
- __builtin_prefetch (&vol_str.d, 0, 0);
- __builtin_prefetch (&vol_ptr_str->d, 0, 0);
- __builtin_prefetch (&ptr_vol_str->d, 0, 0);
- __builtin_prefetch (&vol_ptr_vol_str->d, 0, 0);
- __builtin_prefetch (vol_str.next, 0, 0);
- __builtin_prefetch (vol_ptr_str->next, 0, 0);
- __builtin_prefetch (ptr_vol_str->next, 0, 0);
- __builtin_prefetch (vol_ptr_vol_str->next, 0, 0);
- __builtin_prefetch (vol_str.next->d, 0, 0);
- __builtin_prefetch (vol_ptr_str->next->d, 0, 0);
- __builtin_prefetch (ptr_vol_str->next->d, 0, 0);
- __builtin_prefetch (vol_ptr_vol_str->next->d, 0, 0);
-
- __builtin_prefetch (&glob_vol_int_arr, 0, 0);
- __builtin_prefetch (glob_vol_ptr_int, 0, 0);
- __builtin_prefetch (glob_ptr_vol_int, 0, 0);
- __builtin_prefetch (glob_vol_ptr_vol_int, 0, 0);
- __builtin_prefetch (&glob_vol_int_arr[2], 0, 0);
- __builtin_prefetch (&glob_vol_ptr_int[3], 0, 0);
- __builtin_prefetch (&glob_ptr_vol_int[3], 0, 0);
- __builtin_prefetch (&glob_vol_ptr_vol_int[3], 0, 0);
- __builtin_prefetch (glob_vol_int_arr+3, 0, 0);
- __builtin_prefetch (glob_vol_int_arr+glob_vol_int, 0, 0);
- __builtin_prefetch (glob_vol_ptr_int+5, 0, 0);
- __builtin_prefetch (glob_ptr_vol_int+5, 0, 0);
- __builtin_prefetch (glob_vol_ptr_vol_int+5, 0, 0);
- __builtin_prefetch (glob_vol_ptr_int+glob_vol_int, 0, 0);
- __builtin_prefetch (glob_ptr_vol_int+glob_vol_int, 0, 0);
- __builtin_prefetch (glob_vol_ptr_vol_int+glob_vol_int, 0, 0);
-}
-
-int
-main ()
-{
- simple_vol_global ();
- simple_vol_file ();
-
- str.next = &str;
- vol_str.next = &str;
- expr_vol_global ();
-
- exit (0);
-}