/* Virtual array support.
- Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003
+ Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
Contributed by Cygnus Solutions.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
- the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA. */
+ the Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+/* This file is compiled twice: once for the generator programs
+ once for the compiler. */
+#ifdef GENERATOR_FILE
+#include "bconfig.h"
+#else
#include "config.h"
-#include "errors.h"
+#endif
+
#include "system.h"
#include "coretypes.h"
#include "tm.h"
+#ifdef GENERATOR_FILE
+# include "errors.h"
+#else
+# include "toplev.h"
+#endif
#include "varray.h"
#include "ggc.h"
+#include "hashtab.h"
#define VARRAY_HDR_SIZE (sizeof (struct varray_head_tag) - sizeof (varray_data))
-/* Do not add any more non-GC items here. Please either remove or GC those items that
- are not GCed. */
+#ifdef GATHER_STATISTICS
+
+/* Store information about each particular varray. */
+struct varray_descriptor
+{
+ const char *name;
+ int allocated;
+ int created;
+ int resized;
+ int copied;
+};
+
+/* Hashtable mapping varray names to descriptors. */
+static htab_t varray_hash;
+
+/* Hashtable helpers. */
+static hashval_t
+hash_descriptor (const void *p)
+{
+ const struct varray_descriptor *d = p;
+ return htab_hash_pointer (d->name);
+}
+static int
+eq_descriptor (const void *p1, const void *p2)
+{
+ const struct varray_descriptor *d = p1;
+ return d->name == p2;
+}
+
+/* For given name, return descriptor, create new if needed. */
+static struct varray_descriptor *
+varray_descriptor (const char *name)
+{
+ struct varray_descriptor **slot;
+
+ if (!varray_hash)
+ varray_hash = htab_create (10, hash_descriptor, eq_descriptor, NULL);
+
+ slot = (struct varray_descriptor **)
+ htab_find_slot_with_hash (varray_hash, name,
+ htab_hash_pointer (name),
+ 1);
+ if (*slot)
+ return *slot;
+ *slot = xcalloc (sizeof (**slot), 1);
+ (*slot)->name = name;
+ return *slot;
+}
+#endif
+
+/* Do not add any more non-GC items here. Please either remove or GC
+ those items that are not GCed. */
static const struct {
unsigned char size;
{ sizeof (unsigned long), 1 },
{ sizeof (HOST_WIDE_INT), 1 },
{ sizeof (unsigned HOST_WIDE_INT), 1 },
+ { sizeof (void *), 1 },
{ sizeof (void *), 0 },
{ sizeof (char *), 1 },
{ sizeof (struct rtx_def *), 1 },
{ sizeof (union tree_node *), 1 },
{ sizeof (struct bitmap_head_def *), 1 },
{ sizeof (struct reg_info_def *), 0 },
- { sizeof (struct const_equiv_data), 0 },
- { sizeof (struct basic_block_def *), 0 },
+ { sizeof (struct basic_block_def *), 1 },
{ sizeof (struct elt_list *), 1 },
+ { sizeof (struct edge_def *), 1 },
+ { sizeof (tree *), 1 },
};
/* Allocate a virtual array with NUM_ELEMENT elements, each of which is
{
size_t data_size = num_elements * element[element_kind].size;
varray_type ptr;
+#ifdef GATHER_STATISTICS
+ struct varray_descriptor *desc = varray_descriptor (name);
+
+ desc->created++;
+ desc->allocated += data_size + VARRAY_HDR_SIZE;
+#endif
if (element[element_kind].uses_ggc)
ptr = ggc_alloc_cleared (VARRAY_HDR_SIZE + data_size);
else
varray_grow (varray_type va, size_t n)
{
size_t old_elements = va->num_elements;
-
if (n != old_elements)
{
size_t elem_size = element[va->type].size;
size_t old_data_size = old_elements * elem_size;
size_t data_size = n * elem_size;
+#ifdef GATHER_STATISTICS
+ struct varray_descriptor *desc = varray_descriptor (va->name);
+ varray_type oldva = va;
+
+ if (data_size > old_data_size)
+ desc->allocated += data_size - old_data_size;
+ desc->resized ++;
+#endif
+
if (element[va->type].uses_ggc)
va = ggc_realloc (va, VARRAY_HDR_SIZE + data_size);
va->num_elements = n;
if (n > old_elements)
memset (&va->data.c[old_data_size], 0, data_size - old_data_size);
+#ifdef GATHER_STATISTICS
+ if (oldva != va)
+ desc->copied++;
+#endif
}
return va;
}
#endif
+
+
+/* Output per-varray statistics. */
+#ifdef GATHER_STATISTICS
+
+/* Used to accumulate statistics about varray sizes. */
+struct output_info
+{
+ int count;
+ int size;
+};
+
+/* Called via htab_traverse. Output varray descriptor pointed out by SLOT
+ and update statistics. */
+static int
+print_statistics (void **slot, void *b)
+{
+ struct varray_descriptor *d = (struct varray_descriptor *) *slot;
+ struct output_info *i = (struct output_info *) b;
+
+ if (d->allocated)
+ {
+ fprintf (stderr, "%-21s %6d %10d %7d %7d\n", d->name,
+ d->created, d->allocated, d->resized, d->copied);
+ i->size += d->allocated;
+ i->count += d->created;
+ }
+ return 1;
+}
+#endif
+
+/* Output per-varray memory usage statistics. */
+void dump_varray_statistics (void)
+{
+#ifdef GATHER_STATISTICS
+ struct output_info info;
+
+ fprintf (stderr, "\nVARRAY Kind Count Bytes Resized copied\n");
+ fprintf (stderr, "-------------------------------------------------------\n");
+ info.count = 0;
+ info.size = 0;
+ htab_traverse (varray_hash, print_statistics, &info);
+ fprintf (stderr, "-------------------------------------------------------\n");
+ fprintf (stderr, "%-20s %7d %10d\n",
+ "Total", info.count, info.size);
+ fprintf (stderr, "-------------------------------------------------------\n");
+#endif
+}
OSDN Git Service
