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/* { dg-do run } */
/* { dg-options "-O2" } */
#include "builtin-object-size-common.h"
typedef __SIZE_TYPE__ size_t;
#define NUM_MCAST_RATE 6
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) > (b) ? (a) : (b))
struct inner
{
int dummy[4];
};
struct container
{
int mcast_rate[NUM_MCAST_RATE];
struct inner mesh;
};
static void
test1_child (struct inner *ifmsh, size_t expected)
{
struct container *sdata =
(struct container *) ((void *) ifmsh
- __builtin_offsetof (struct container, mesh));
if (__builtin_dynamic_object_size (sdata->mcast_rate, 1)
!= sizeof (sdata->mcast_rate))
FAIL ();
if (__builtin_dynamic_object_size (&sdata->mesh, 1) != expected)
FAIL ();
}
void
__attribute__((noinline))
test1 (size_t sz)
{
struct container *sdata = __builtin_malloc (sz);
struct inner *ifmsh = &sdata->mesh;
test1_child (ifmsh,
(sz > sizeof (sdata->mcast_rate)
? sz - sizeof (sdata->mcast_rate) : 0));
__builtin_free (sdata);
}
struct container2
{
int mcast_rate[NUM_MCAST_RATE];
union
{
int dummy;
double dbl;
struct inner mesh;
} u;
};
static void
test2_child (struct inner *ifmsh, size_t sz)
{
struct container2 *sdata =
(struct container2 *) ((void *) ifmsh
- __builtin_offsetof (struct container2, u.mesh));
if (__builtin_dynamic_object_size (sdata->mcast_rate, 1)
!= sizeof (sdata->mcast_rate))
FAIL ();
size_t diff = sizeof (*sdata) - sz;
size_t expected = MIN(sizeof (double), MAX (sizeof (sdata->u), diff) - diff);
if (__builtin_dynamic_object_size (&sdata->u.dbl, 1) != expected)
FAIL ();
expected = MAX (sizeof (sdata->u.mesh), diff) - diff;
if (__builtin_dynamic_object_size (&sdata->u.mesh, 1) != expected)
FAIL ();
}
void
__attribute__((noinline))
test2 (size_t sz)
{
struct container2 *sdata = __builtin_malloc (sz);
struct inner *ifmsh = &sdata->u.mesh;
test2_child (ifmsh, sz);;
__builtin_free (sdata);
}
struct container3
{
int mcast_rate[NUM_MCAST_RATE];
char mesh[8];
};
static void
test3_child (char ifmsh[], size_t expected)
{
struct container3 *sdata =
(struct container3 *) ((void *) ifmsh
- __builtin_offsetof (struct container3, mesh));
if (__builtin_dynamic_object_size (sdata->mcast_rate, 1)
!= sizeof (sdata->mcast_rate))
FAIL ();
if (__builtin_dynamic_object_size (sdata->mesh, 1) != expected)
FAIL ();
}
void
__attribute__((noinline))
test3 (size_t sz)
{
struct container3 *sdata = __builtin_malloc (sz);
char *ifmsh = sdata->mesh;
size_t diff = sizeof (*sdata) - sz;
test3_child (ifmsh, MAX(sizeof (sdata->mesh), diff) - diff);
__builtin_free (sdata);
}
struct container4
{
int mcast_rate[NUM_MCAST_RATE];
struct
{
int dummy;
struct inner mesh;
} s;
};
static void
test4_child (struct inner *ifmsh, size_t expected)
{
struct container4 *sdata =
(struct container4 *) ((void *) ifmsh
- __builtin_offsetof (struct container4, s.mesh));
if (__builtin_dynamic_object_size (sdata->mcast_rate, 1)
!= sizeof (sdata->mcast_rate))
FAIL ();
if (__builtin_dynamic_object_size (&sdata->s.mesh, 1) != expected)
FAIL ();
}
void
__attribute__((noinline))
test4 (size_t sz)
{
struct container4 *sdata = __builtin_malloc (sz);
struct inner *ifmsh = &sdata->s.mesh;
size_t diff = sizeof (*sdata) - sz;
test4_child (ifmsh, MAX(sizeof (sdata->s.mesh), diff) - diff);
__builtin_free (sdata);
}
struct container5
{
int mcast_rate[NUM_MCAST_RATE];
struct
{
int dummy;
struct inner *mesh;
} s;
};
static void
test5_child (struct inner **ifmsh, size_t expected)
{
struct container5 *sdata =
(struct container5 *) ((void *) ifmsh
- __builtin_offsetof (struct container5, s.mesh));
if (__builtin_dynamic_object_size (sdata->mcast_rate, 1)
!= sizeof (sdata->mcast_rate))
FAIL ();
if (__builtin_dynamic_object_size (&sdata->s.mesh, 1) != expected)
FAIL ();
}
void
__attribute__((noinline))
test5 (size_t sz)
{
struct container5 *sdata = __builtin_malloc (sz);
struct inner **ifmsh = &sdata->s.mesh;
size_t diff = sizeof (*sdata) - sz;
test5_child (ifmsh, MAX(sizeof (sdata->s.mesh), diff) - diff);
__builtin_free (sdata);
}
int
main (void)
{
test1 (sizeof (struct container));
test1 (sizeof (struct container) - sizeof (int));
test1 (sizeof (int) * NUM_MCAST_RATE - 1);
test2 (sizeof (struct container2));
test2 (sizeof (struct container2) - sizeof (int));
test2 (sizeof (int) * NUM_MCAST_RATE - 1);
test3 (sizeof (struct container3));
test3 (sizeof (struct container3) - sizeof (int));
test3 (sizeof (int) * NUM_MCAST_RATE - 1);
test4 (sizeof (struct container4));
test4 (sizeof (struct container4) - sizeof (int));
test4 (sizeof (int) * NUM_MCAST_RATE - 1);
test5 (sizeof (struct container5));
test5 (sizeof (struct container5) - sizeof (int));
test5 (sizeof (int) * NUM_MCAST_RATE - 1);
DONE ();
}
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