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/* Test we're able use __atomic_fetch_* where possible and verify
we generate correct code. */
/* { dg-do run } */
/* { dg-options "-std=c11 -pedantic-errors -fdump-tree-original" } */
#include <stdatomic.h>
extern void abort (void);
static void
test_inc_dec (void)
{
atomic_int i = ATOMIC_VAR_INIT (1);
i++;
if (i != 2)
abort ();
i--;
if (i != 1)
abort ();
++i;
if (i != 2)
abort ();
--i;
if (i != 1)
abort ();
if (++i != 2)
abort ();
if (i++ != 2)
abort ();
if (i != 3)
abort ();
if (i-- != 3)
abort ();
if (i != 2)
abort ();
}
static void
test_add_sub (void)
{
atomic_int i = ATOMIC_VAR_INIT (1);
i += 2;
if (i != 3)
abort ();
i -= 2;
if (i != 1)
abort ();
if ((i += 2) != 3)
abort ();
if ((i -= 2) != 1)
abort ();
}
static void
test_and (void)
{
atomic_int i = ATOMIC_VAR_INIT (5);
i &= 4;
if (i != 4)
abort ();
if ((i &= 4) != 4)
abort ();
}
static void
test_xor (void)
{
atomic_int i = ATOMIC_VAR_INIT (5);
i ^= 2;
if (i != 7)
abort ();
if ((i ^= 4) != 3)
abort ();
}
static void
test_or (void)
{
atomic_int i = ATOMIC_VAR_INIT (5);
i |= 2;
if (i != 7)
abort ();
if ((i |= 8) != 15)
abort ();
}
static void
test_ptr (atomic_int *p)
{
++*p;
if (*p != 2)
abort ();
*p += 2;
if (*p != 4)
abort ();
(*p)++;
if (*p != 5)
abort ();
--*p;
if (*p != 4)
abort ();
(*p)--;
if (*p != 3)
abort ();
*p -= 2;
if (*p != 1)
abort ();
atomic_int j = ATOMIC_VAR_INIT (0);
j += *p;
if (j != 1)
abort ();
j -= *p;
if (j != 0)
abort ();
}
int
main (void)
{
atomic_int i = ATOMIC_VAR_INIT (1);
test_inc_dec ();
test_add_sub ();
test_and ();
test_xor ();
test_or ();
test_ptr (&i);
}
/* { dg-final { scan-tree-dump-not "__atomic_compare_exchange" "original" } } */
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