ppl_dimension_type i;
ppl_dimension_type first = pdr_subscript_dim (pdr, 0);
ppl_dimension_type last = pdr_subscript_dim (pdr, PDR_NB_SUBSCRIPTS (pdr));
- Value size, sub_size;
+ mpz_t size, sub_size;
graphite_dim_t dim = offset + pdr_dim (pdr);
ppl_new_Linear_Expression_with_dimension (&res, dim);
- value_init (size);
- value_set_si (size, 1);
- value_init (sub_size);
- value_set_si (sub_size, 1);
+ mpz_init (size);
+ mpz_set_si (size, 1);
+ mpz_init (sub_size);
+ mpz_set_si (sub_size, 1);
for (i = last - 1; i >= first; i--)
{
ppl_new_Linear_Expression_with_dimension (&le, dim - offset);
ppl_set_coef (le, i, 1);
ppl_max_for_le_pointset (PDR_ACCESSES (pdr), le, sub_size);
- value_multiply (size, size, sub_size);
+ mpz_mul (size, size, sub_size);
ppl_delete_Linear_Expression (le);
}
- value_clear (sub_size);
- value_clear (size);
+ mpz_clear (sub_size);
+ mpz_clear (size);
return res;
}
the loop at DEPTH. */
static void
-memory_stride_in_loop (Value stride, graphite_dim_t depth, poly_dr_p pdr)
+pdr_stride_in_loop (mpz_t stride, graphite_dim_t depth, poly_dr_p pdr)
{
ppl_dimension_type time_depth;
ppl_Linear_Expression_t le, lma;
if (dump_file && (dump_flags & TDF_DETAILS))
{
+ char *str;
+ void (*gmp_free) (void *, size_t);
+
fprintf (dump_file, "\nStride in BB_%d, DR_%d, depth %d:",
pbb_index (pbb), PDR_ID (pdr), (int) depth);
- value_print (dump_file, " %s ", stride);
+ str = mpz_get_str (0, 10, stride);
+ fprintf (dump_file, " %s ", str);
+ mp_get_memory_functions (NULL, NULL, &gmp_free);
+ (*gmp_free) (str, strlen (str) + 1);
}
ppl_delete_Pointset_Powerset_C_Polyhedron (p1);
ppl_delete_Linear_Expression (le);
}
-/* Sets STRIDES to the sum of all the strides of the data references accessed */
+
+/* Sets STRIDES to the sum of all the strides of the data references
+ accessed in LOOP at DEPTH. */
static void
-memory_strides_in_loop_depth (poly_bb_p pbb, graphite_dim_t depth, Value strides)
+memory_strides_in_loop_1 (lst_p loop, graphite_dim_t depth, mpz_t strides)
{
- int i;
+ int i, j;
+ lst_p l;
poly_dr_p pdr;
- Value s, n;
+ mpz_t s, n;
- value_set_si (strides, 0);
- value_init (s);
- value_init (n);
+ mpz_init (s);
+ mpz_init (n);
- for (i = 0; VEC_iterate (poly_dr_p, PBB_DRS (pbb), i, pdr); i++)
- {
- value_set_si (n, PDR_NB_REFS (pdr));
+ for (j = 0; VEC_iterate (lst_p, LST_SEQ (loop), j, l); j++)
+ if (LST_LOOP_P (l))
+ memory_strides_in_loop_1 (l, depth, strides);
+ else
+ for (i = 0; VEC_iterate (poly_dr_p, PBB_DRS (LST_PBB (l)), i, pdr); i++)
+ {
+ pdr_stride_in_loop (s, depth, pdr);
+ mpz_set_si (n, PDR_NB_REFS (pdr));
+ mpz_mul (s, s, n);
+ mpz_add (strides, strides, s);
+ }
- memory_stride_in_loop (s, depth, pdr);
- value_multiply (s, s, n);
- value_addto (strides, strides, s);
- }
+ mpz_clear (s);
+ mpz_clear (n);
+}
- value_clear (s);
- value_clear (n);
+/* Sets STRIDES to the sum of all the strides of the data references
+ accessed in LOOP at DEPTH. */
+
+static void
+memory_strides_in_loop (lst_p loop, graphite_dim_t depth, mpz_t strides)
+{
+ if (mpz_cmp_si (loop->memory_strides, -1) == 0)
+ {
+ mpz_set_si (strides, 0);
+ memory_strides_in_loop_1 (loop, depth, strides);
+ }
+ else
+ mpz_set (strides, loop->memory_strides);
}
-/* Returns true when it is profitable to interchange time dimensions DEPTH1
- and DEPTH2 with DEPTH1 < DEPTH2 for PBB.
+/* Return true when the interchange of loops LOOP1 and LOOP2 is
+ profitable.
Example:
profitable to interchange the loops at DEPTH1 and DEPTH2. */
static bool
-pbb_interchange_profitable_p (graphite_dim_t depth1, graphite_dim_t depth2,
- poly_bb_p pbb)
+lst_interchange_profitable_p (lst_p loop1, lst_p loop2)
{
- Value d1, d2;
+ mpz_t d1, d2;
bool res;
- gcc_assert (depth1 < depth2);
+ gcc_assert (loop1 && loop2
+ && LST_LOOP_P (loop1) && LST_LOOP_P (loop2)
+ && lst_depth (loop1) < lst_depth (loop2));
- value_init (d1);
- value_init (d2);
+ mpz_init (d1);
+ mpz_init (d2);
- memory_strides_in_loop_depth (pbb, depth1, d1);
- memory_strides_in_loop_depth (pbb, depth2, d2);
+ memory_strides_in_loop (loop1, lst_depth (loop1), d1);
+ memory_strides_in_loop (loop2, lst_depth (loop2), d2);
res = value_lt (d1, d2);
- value_clear (d1);
- value_clear (d2);
+ mpz_clear (d1);
+ mpz_clear (d2);
return res;
}
pbb_interchange_loop_depths (depth1, depth2, LST_PBB (lst));
}
-/* Return true when the interchange of loops at depths DEPTH1 and
- DEPTH2 to all the statements below LST is profitable. */
-
-static bool
-lst_interchange_profitable_p (lst_p lst, int depth1, int depth2)
-{
- if (!lst)
- return false;
-
- if (LST_LOOP_P (lst))
- {
- int i;
- lst_p l;
- bool res = false;
-
- for (i = 0; VEC_iterate (lst_p, LST_SEQ (lst), i, l); i++)
- {
- bool profitable = lst_interchange_profitable_p (l, depth1, depth2);
-
- if (profitable && !LST_LOOP_P (lst)
- && dump_file && (dump_flags & TDF_DETAILS))
- fprintf (dump_file,
- "Interchanging loops at depths %d and %d is profitable for stmt_%d.\n",
- depth1, depth2, pbb_index (LST_PBB (lst)));
-
- res |= profitable;
- }
-
- return res;
- }
- else
- return pbb_interchange_profitable_p (depth1, depth2, LST_PBB (lst));
-}
-
/* Return true when the nest starting at LOOP1 and ending on LOOP2 is
perfect: i.e. there are no sequence of statements. */
lst_p before = NULL, nest = NULL, after = NULL;
- if (!lst_interchange_profitable_p (loop2, depth1, depth2))
+ if (!lst_interchange_profitable_p (loop1, loop2))
return false;
if (!lst_perfectly_nested_p (loop1, loop2))
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