static void
print_scattering_function_1 (FILE *file, poly_bb_p pbb, int verbosity)
{
graphite_dim_t i;
if (verbosity > 0)
{
fprintf (file, "# scattering bb_%d (\n", pbb_index (pbb));
fprintf (file, "# eq");
for (i = 0; i < pbb_nb_scattering_transform (pbb); i++)
fprintf (file, " s%d", (int) i);
for (i = 0; i < pbb_nb_local_vars (pbb); i++)
fprintf (file, " lv%d", (int) i);
for (i = 0; i < pbb_dim_iter_domain (pbb); i++)
fprintf (file, " i%d", (int) i);
for (i = 0; i < pbb_nb_params (pbb); i++)
fprintf (file, " p%d", (int) i);
fprintf (file, " cst\n");
}
/* Number of disjunct components. Remove this when
PBB_TRANSFORMED_SCATTERING will be a pointset_powerset. */
fprintf (file, "1\n");
ppl_print_polyhedron_matrix (file, PBB_TRANSFORMED_SCATTERING (pbb)
? PBB_TRANSFORMED_SCATTERING (pbb)
: PBB_ORIGINAL_SCATTERING (pbb));
if (verbosity > 0)
fprintf (file, "#)\n");
}
int
scop_max_loop_depth (scop_p scop)
{
int i;
poly_bb_p pbb;
int max_nb_loops = 0;
FOR_EACH_VEC_ELT (SCOP_BBS (scop), i, pbb)
{
int nb_loops = pbb_dim_iter_domain (pbb);
if (max_nb_loops < nb_loops)
max_nb_loops = nb_loops;
}
static bool
graphite_legal_transform_dr (poly_bb_p pbb1, poly_bb_p pbb2,
poly_dr_p pdr1, poly_dr_p pdr2)
{
ppl_Pointset_Powerset_C_Polyhedron_t d1 = PBB_DOMAIN (pbb1);
ppl_Pointset_Powerset_C_Polyhedron_t d2 = PBB_DOMAIN (pbb2);
ppl_Polyhedron_t so1 = PBB_ORIGINAL_SCATTERING (pbb1);
ppl_Polyhedron_t so2 = PBB_ORIGINAL_SCATTERING (pbb2);
ppl_Pointset_Powerset_C_Polyhedron_t po;
graphite_dim_t sdim1 = pdr_nb_subscripts (pdr1) + 1;
graphite_dim_t sdim2 = pdr_nb_subscripts (pdr2) + 1;
if (sdim1 != sdim2)
return true;
po = dependence_polyhedron (pbb1, pbb2, d1, d2, pdr1, pdr2, so1, so2,
true, true);
if (ppl_Pointset_Powerset_C_Polyhedron_is_empty (po))
return true;
else
{
ppl_Polyhedron_t st1 = PBB_TRANSFORMED_SCATTERING (pbb1);
ppl_Polyhedron_t st2 = PBB_TRANSFORMED_SCATTERING (pbb2);
ppl_Pointset_Powerset_C_Polyhedron_t pt;
graphite_dim_t ddim1 = pbb_dim_iter_domain (pbb1);
graphite_dim_t otdim1 = pbb_nb_scattering_orig (pbb1);
graphite_dim_t otdim2 = pbb_nb_scattering_orig (pbb2);
graphite_dim_t ttdim1 = pbb_nb_scattering_transform (pbb1);
graphite_dim_t ttdim2 = pbb_nb_scattering_transform (pbb2);
if (dump_file && (dump_flags & TDF_DETAILS))
fprintf (dump_file, "\nloop carries dependency.\n");
pt = dependence_polyhedron (pbb1, pbb2, d1, d2, pdr1, pdr2, st1, st2,
false, false);
/* Extend PO and PT to have the same dimensions. */
ppl_insert_dimensions_pointset (po, otdim1, ttdim1);
ppl_insert_dimensions_pointset (po, otdim1 + ttdim1 + ddim1 + otdim2,
ttdim2);
ppl_insert_dimensions_pointset (pt, 0, otdim1);
ppl_insert_dimensions_pointset (pt, otdim1 + ttdim1 + ddim1, otdim2);
ppl_Pointset_Powerset_C_Polyhedron_intersection_assign (po, pt);
return ppl_Pointset_Powerset_C_Polyhedron_is_empty (po);
}
}
int
scop_max_loop_depth (scop_p scop)
{
int i;
poly_bb_p pbb;
int max_nb_loops = 0;
for (i = 0; VEC_iterate (poly_bb_p, SCOP_BBS (scop), i, pbb); i++)
{
int nb_loops = pbb_dim_iter_domain (pbb);
if (max_nb_loops < nb_loops)
max_nb_loops = nb_loops;
}
return max_nb_loops;
}
static bool
graphite_carried_dependence_level_k (poly_dr_p pdr1, poly_dr_p pdr2,
int level)
{
poly_bb_p pbb1 = PDR_PBB (pdr1);
poly_bb_p pbb2 = PDR_PBB (pdr2);
ppl_Pointset_Powerset_C_Polyhedron_t d1 = PBB_DOMAIN (pbb1);
ppl_Pointset_Powerset_C_Polyhedron_t d2 = PBB_DOMAIN (pbb2);
ppl_Polyhedron_t so1 = PBB_TRANSFORMED_SCATTERING (pbb1);
ppl_Polyhedron_t so2 = PBB_TRANSFORMED_SCATTERING (pbb2);
ppl_Pointset_Powerset_C_Polyhedron_t po;
ppl_Pointset_Powerset_C_Polyhedron_t eqpp;
graphite_dim_t sdim1 = pdr_nb_subscripts (pdr1) + 1;
graphite_dim_t sdim2 = pdr_nb_subscripts (pdr2) + 1;
graphite_dim_t tdim1 = pbb_nb_scattering_transform (pbb1);
graphite_dim_t ddim1 = pbb_dim_iter_domain (pbb1);
ppl_dimension_type dim;
bool empty_p;
if ((PDR_TYPE (pdr1) == PDR_READ && PDR_TYPE (pdr2) == PDR_READ)
|| !poly_drs_may_alias_p (pdr1, pdr2))
return false;
if (sdim1 != sdim2)
return true;
po = dependence_polyhedron (pbb1, pbb2, d1, d2, pdr1, pdr2, so1, so2,
true, false);
if (ppl_Pointset_Powerset_C_Polyhedron_is_empty (po))
{
ppl_delete_Pointset_Powerset_C_Polyhedron (po);
return false;
}
ppl_Pointset_Powerset_C_Polyhedron_space_dimension (po, &dim);
eqpp = build_pairwise_scheduling_inequality (dim, level, tdim1 + ddim1, 1);
ppl_Pointset_Powerset_C_Polyhedron_intersection_assign (eqpp, po);
empty_p = ppl_Pointset_Powerset_C_Polyhedron_is_empty (eqpp);
ppl_delete_Pointset_Powerset_C_Polyhedron (po);
ppl_delete_Pointset_Powerset_C_Polyhedron (eqpp);
return !empty_p;
}
static void
extend_scattering (poly_bb_p pbb, int max_scattering)
{
ppl_dimension_type nb_old_dims, nb_new_dims;
int nb_added_dims, i;
ppl_Coefficient_t coef;
Value one;
nb_added_dims = max_scattering - pbb_nb_scattering_transform (pbb);
value_init (one);
value_set_si (one, 1);
ppl_new_Coefficient (&coef);
ppl_assign_Coefficient_from_mpz_t (coef, one);
gcc_assert (nb_added_dims >= 0);
nb_old_dims = pbb_nb_scattering_transform (pbb) + pbb_dim_iter_domain (pbb)
+ scop_nb_params (PBB_SCOP (pbb));
nb_new_dims = nb_old_dims + nb_added_dims;
ppl_insert_dimensions (PBB_TRANSFORMED_SCATTERING (pbb),
pbb_nb_scattering_transform (pbb), nb_added_dims);
PBB_NB_SCATTERING_TRANSFORM (pbb) += nb_added_dims;
/* Add identity matrix for the added dimensions. */
for (i = max_scattering - nb_added_dims; i < max_scattering; i++)
{
ppl_Constraint_t cstr;
ppl_Linear_Expression_t expr;
ppl_new_Linear_Expression_with_dimension (&expr, nb_new_dims);
ppl_Linear_Expression_add_to_coefficient (expr, i, coef);
ppl_new_Constraint (&cstr, expr, PPL_CONSTRAINT_TYPE_EQUAL);
ppl_Polyhedron_add_constraint (PBB_TRANSFORMED_SCATTERING (pbb), cstr);
ppl_delete_Constraint (cstr);
ppl_delete_Linear_Expression (expr);
}
ppl_delete_Coefficient (coef);
value_clear (one);
}
static ppl_Pointset_Powerset_C_Polyhedron_t
dependence_polyhedron_1 (poly_bb_p pbb1, poly_bb_p pbb2,
ppl_Pointset_Powerset_C_Polyhedron_t d1,
ppl_Pointset_Powerset_C_Polyhedron_t d2,
poly_dr_p pdr1, poly_dr_p pdr2,
ppl_Polyhedron_t s1, ppl_Polyhedron_t s2,
bool direction,
bool original_scattering_p)
{
scop_p scop = PBB_SCOP (pbb1);
graphite_dim_t tdim1 = original_scattering_p ?
pbb_nb_scattering_orig (pbb1) : pbb_nb_scattering_transform (pbb1);
graphite_dim_t tdim2 = original_scattering_p ?
pbb_nb_scattering_orig (pbb2) : pbb_nb_scattering_transform (pbb2);
graphite_dim_t ddim1 = pbb_dim_iter_domain (pbb1);
graphite_dim_t ddim2 = pbb_dim_iter_domain (pbb2);
graphite_dim_t sdim1 = pdr_nb_subscripts (pdr1) + 1;
graphite_dim_t gdim = scop_nb_params (scop);
graphite_dim_t dim1 = pdr_dim (pdr1);
graphite_dim_t dim2 = pdr_dim (pdr2);
graphite_dim_t dim = tdim1 + tdim2 + dim1 + dim2;
ppl_Pointset_Powerset_C_Polyhedron_t res;
ppl_Pointset_Powerset_C_Polyhedron_t id1, id2, isc1, isc2, idr1, idr2;
ppl_Pointset_Powerset_C_Polyhedron_t sc1, sc2, dreq;
gcc_assert (PBB_SCOP (pbb1) == PBB_SCOP (pbb2));
ppl_new_Pointset_Powerset_C_Polyhedron_from_C_Polyhedron (&sc1, s1);
ppl_new_Pointset_Powerset_C_Polyhedron_from_C_Polyhedron (&sc2, s2);
id1 = map_into_dep_poly (dim, gdim, d1, ddim1, tdim1);
id2 = map_into_dep_poly (dim, gdim, d2, ddim2, tdim1 + ddim1 + tdim2);
isc1 = map_into_dep_poly (dim, gdim, sc1, ddim1 + tdim1, 0);
isc2 = map_into_dep_poly (dim, gdim, sc2, ddim2 + tdim2, tdim1 + ddim1);
idr1 = map_dr_into_dep_poly (dim, PDR_ACCESSES (pdr1), ddim1, ddim1 + gdim,
tdim1, tdim2 + ddim2);
idr2 = map_dr_into_dep_poly (dim, PDR_ACCESSES (pdr2), ddim2, ddim2 + gdim,
tdim1 + ddim1 + tdim2, sdim1);
/* Now add the subscript equalities. */
dreq = dr_equality_constraints (dim, tdim1 + ddim1 + tdim2 + ddim2, sdim1);
ppl_new_Pointset_Powerset_C_Polyhedron_from_space_dimension (&res, dim, 0);
ppl_Pointset_Powerset_C_Polyhedron_intersection_assign (res, id1);
ppl_Pointset_Powerset_C_Polyhedron_intersection_assign (res, id2);
ppl_Pointset_Powerset_C_Polyhedron_intersection_assign (res, isc1);
ppl_Pointset_Powerset_C_Polyhedron_intersection_assign (res, isc2);
ppl_Pointset_Powerset_C_Polyhedron_intersection_assign (res, idr1);
ppl_Pointset_Powerset_C_Polyhedron_intersection_assign (res, idr2);
ppl_Pointset_Powerset_C_Polyhedron_intersection_assign (res, dreq);
ppl_delete_Pointset_Powerset_C_Polyhedron (id1);
ppl_delete_Pointset_Powerset_C_Polyhedron (id2);
ppl_delete_Pointset_Powerset_C_Polyhedron (sc1);
ppl_delete_Pointset_Powerset_C_Polyhedron (sc2);
ppl_delete_Pointset_Powerset_C_Polyhedron (isc1);
ppl_delete_Pointset_Powerset_C_Polyhedron (isc2);
ppl_delete_Pointset_Powerset_C_Polyhedron (idr1);
ppl_delete_Pointset_Powerset_C_Polyhedron (idr2);
ppl_delete_Pointset_Powerset_C_Polyhedron (dreq);
if (!ppl_Pointset_Powerset_C_Polyhedron_is_empty (res))
build_lexicographically_gt_constraint (&res, dim, MIN (tdim1, tdim2),
tdim1 + ddim1, direction);
return res;
}
