/* Given a relation "map" between instances of two statements A and B,
* does it relate every instance of A (according to the domain of "src")
* to every instance of B (according to the domain of "dst")?
*/
static isl_bool covers_src_and_dst(__isl_keep isl_map *map,
struct ppcg_grouping_leaf *src, struct ppcg_grouping_leaf *dst)
{
isl_space *space;
isl_set *set1, *set2;
isl_bool is_subset;
space = isl_space_domain(isl_map_get_space(map));
set1 = isl_union_set_extract_set(src->domain, space);
set2 = isl_map_domain(isl_map_copy(map));
is_subset = isl_set_is_subset(set1, set2);
isl_set_free(set1);
isl_set_free(set2);
if (is_subset < 0 || !is_subset)
return is_subset;
space = isl_space_range(isl_map_get_space(map));
set1 = isl_union_set_extract_set(dst->domain, space);
set2 = isl_map_range(isl_map_copy(map));
is_subset = isl_set_is_subset(set1, set2);
isl_set_free(set1);
isl_set_free(set2);
return is_subset;
}
static
isl_set* build_iteration_domain (scoplib_scop_p scop,
scoplib_statement_p s,
isl_space* space,
isl_ctx* ctxt)
{
isl_set* ret = isl_set_universe (isl_space_domain (isl_space_copy (space)));
int i;
isl_val* tmp = isl_val_int_from_si (ctxt, 0);
scoplib_matrix_p m = s->domain->elt;
for (i = 0; i < m->NbRows; ++i)
{
isl_local_space* ls =
isl_local_space_from_space (isl_set_get_space (ret));
isl_constraint* cst;
if (SCOPVAL_get_si(m->p[i][0]) == 0)
cst = isl_equality_alloc (isl_local_space_copy (ls));
else
cst = isl_inequality_alloc (isl_local_space_copy (ls));
// Set input dimensions.
int k;
for (k = 0; k < s->nb_iterators; ++k)
{
tmp = isl_val_set_si (tmp, SCOPVAL_get_si(m->p[i][k+1]));
cst = isl_constraint_set_coefficient_val (cst, isl_dim_set, k, isl_val_copy (tmp));
}
for (k = 0; k < scop->nb_parameters; ++k)
{
tmp =
isl_val_set_si (tmp, SCOPVAL_get_si(m->p[i][k+1+s->nb_iterators]));
cst =
isl_constraint_set_coefficient_val (cst, isl_dim_param, k,
isl_val_copy (tmp));
}
tmp = isl_val_set_si (tmp, SCOPVAL_get_si(m->p[i][m->NbColumns - 1]));
cst = isl_constraint_set_constant_val (cst, isl_val_copy (tmp));
// Insert constraint.
ret = isl_set_add_constraint (ret, cst);
}
isl_val_free (tmp);
return ret;
}
static
isl_map* build_schedule (scoplib_scop_p scop,
scoplib_statement_p s,
isl_space* sp,
isl_ctx* ctxt)
{
// Set up the space.
isl_space* space_in = isl_space_domain (isl_space_copy (sp));
int dout = s->schedule->NbRows;
isl_space* space_out = isl_space_set_alloc(ctxt, scop->nb_parameters, dout);
int i;
char buffer[32];
char* name;
for (i = 0; i < dout; ++i)
{
sprintf (buffer, "t%d", i);
name = strdup (buffer);
space_out = isl_space_set_dim_name (space_out, isl_dim_set, i, name);
}
for (i = 0; i < scop->nb_parameters; ++i)
{
name = strdup (((SgVariableSymbol*)(scop->parameters[i]))->get_name().str());
space_out = isl_space_set_dim_name (space_out, isl_dim_param, i, name);
}
isl_space* space = isl_space_map_from_domain_and_range
(isl_space_copy (space_in), isl_space_copy (space_out));
isl_map* ret = isl_map_universe (isl_space_copy (space));
isl_val* tmp = isl_val_int_from_si (ctxt, 0);
scoplib_matrix_p m = s->schedule;
for (i = 0; i < m->NbRows; ++i)
{
isl_local_space* ls =
isl_local_space_from_space (isl_space_copy (space));
isl_constraint* cst;
if (SCOPVAL_get_si(m->p[i][0]) == 0)
cst = isl_equality_alloc (isl_local_space_copy (ls));
else
cst = isl_inequality_alloc (isl_local_space_copy (ls));
// Set input dimensions.
int k;
for (k = 0; k < s->nb_iterators; ++k)
{
tmp = isl_val_set_si (tmp, SCOPVAL_get_si(m->p[i][k+1]));
cst = isl_constraint_set_coefficient_val (cst, isl_dim_in, k, isl_val_copy (tmp));
}
for (k = 0; k < scop->nb_parameters; ++k)
{
tmp =
isl_val_set_si (tmp, SCOPVAL_get_si(m->p[i][k+1+s->nb_iterators]));
cst =
isl_constraint_set_coefficient_val (cst, isl_dim_param, k,
isl_val_copy (tmp));
}
tmp = isl_val_set_si (tmp, SCOPVAL_get_si(m->p[i][m->NbColumns - 1]));
cst = isl_constraint_set_constant_val (cst, isl_val_copy (tmp));
// Set output dimension.
tmp = isl_val_set_si (tmp, -1);
isl_constraint_set_coefficient_val (cst, isl_dim_out, i, isl_val_copy (tmp));
// Insert constraint.
ret = isl_map_add_constraint (ret, cst);
}
isl_val_free (tmp);
return ret;
}
