123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129 |
- /* { dg-do run } */
- #include <stdlib.h>
- #include <string.h>
- #include <stdbool.h>
- /* Avoid using the builtins, calling directly to the library functions
- of the same name, so that we get direct access to the size_t and
- don't have to create myriad types of different sizes. */
- #define C2_(X,Y) X ## Y
- #define C2(X,Y) C2_(X,Y)
- #define S2(X) #X
- #define S(X) S2(X)
- #define ASMNAME(X) __asm__(S(C2(__USER_LABEL_PREFIX__,X)))
- #define MAN(X) ASMNAME(C2(__atomic_,X))
- void libat_load (size_t, void *, void *, int) MAN(load);
- void libat_store (size_t, void *, void *, int) MAN(store);
- void libat_exchange (size_t, void *, void *, void *, int) MAN(exchange);
- bool libat_compare_exchange (size_t, void *, void *, void *, int, int)
- MAN(compare_exchange);
- bool libat_is_lock_free (size_t, void *) MAN(is_lock_free);
- #define ALIGN 16
- #define MAX 4*ALIGN
- static char a[MAX];
- static char b[MAX];
- static char c[MAX];
- static char pa[MAX];
- static char pb[MAX];
- static void test_load(void)
- {
- int i, j;
- for (i = ALIGN; i < 2*ALIGN; ++i)
- for (j = 1; j <= 2*ALIGN; ++j)
- {
- memcpy(b, pa, MAX);
- memcpy(b + i, pb, j);
- libat_load (j, b + i, a, 0);
- if (memcmp (a, pb, j) != 0) abort ();
- }
- }
- static void test_store(void)
- {
- int i, j;
- for (i = ALIGN; i < 2*ALIGN; ++i)
- for (j = 1; j <= 2*ALIGN; ++j)
- {
- memcpy(a, pa, MAX);
- memcpy(b, pa, MAX);
- memcpy(b + i, pb, j);
- libat_store (j, a + i, pb, 0);
- if (memcmp (a, b, MAX) != 0) abort ();
- }
- }
- static void test_exch(void)
- {
- int i, j;
- for (i = ALIGN; i < 2 * ALIGN; ++i)
- for (j = 1; j <= 2*ALIGN; ++j)
- {
- memcpy(a, pa, MAX);
- memcpy(b, pa, MAX);
- memcpy(b + i, pb, j);
- libat_exchange (j, a + i, pb, c, 0);
- if (memcmp (a, b, MAX) != 0) abort ();
- if (memcmp (c, pa + i, j) != 0) abort ();
- memcpy(a, pa, MAX);
- memcpy(c, pb, MAX);
- libat_exchange (j, a + i, c + i, c + i, 0);
- memcpy(b, pa, MAX);
- memcpy(b + i, pb + i, j);
- if (memcmp (b, a, MAX) != 0) abort ();
- memcpy(b, pb, MAX);
- memcpy(b + i, pa + i, j);
- if (memcmp (b, c, MAX) != 0) abort ();
- }
- }
- static void test_cas(void)
- {
- int i, j;
- for (i = ALIGN; i < 2 * ALIGN; ++i)
- for (j = 1; j <= 2*ALIGN; ++j)
- {
- memcpy(a, pa, MAX);
- memcpy(b, pa, MAX);
- memcpy(c, pa, MAX);
- memcpy(b + i, pb, j);
- if (!libat_compare_exchange (j, a + i, c + i, pb, 0, 0)) abort ();
- if (memcmp (c, pa, MAX) != 0) abort ();
- if (memcmp (a, b, MAX) != 0) abort ();
- memcpy(a, pb, MAX);
- memcpy(b, pa, MAX);
- memcpy(c, pa, MAX);
- memcpy(b + i, pb + i, j);
- if (libat_compare_exchange (j, a + i, c + i, pb, 0, 0)) abort ();
- if (memcmp (a, pb, MAX) != 0) abort ();
- if (memcmp (b, c, MAX) != 0) abort ();
- }
- }
- int main (void)
- {
- int i;
- for (i = 0; i < MAX; ++i)
- {
- pa[i] = i * 2;
- pb[i] = i * 2 + 1;
- }
- test_load ();
- test_store ();
- test_exch ();
- test_cas ();
- return 0;
- }
|