/*
* Copyright 2010 INRIA Saclay
*
- * Use of this software is governed by the GNU LGPLv2.1 license
+ * Use of this software is governed by the MIT license
*
* Written by Sven Verdoolaege, INRIA Saclay - Ile-de-France,
* Parc Club Orsay Universite, ZAC des vignes, 4 rue Jacques Monod,
* 91893 Orsay, France
*/
+#define ISL_DIM_H
+#include <isl_map_private.h>
+#include <isl_union_map_private.h>
#include <isl_polynomial_private.h>
#include <isl_point_private.h>
-#include <isl_dim.h>
-#include <isl_map_private.h>
-#include <isl_lp.h>
-#include <isl_seq.h>
+#include <isl_space_private.h>
+#include <isl/lp.h>
+#include <isl/seq.h>
+#include <isl_mat_private.h>
+#include <isl_config.h>
+
+enum isl_fold isl_fold_type_negate(enum isl_fold type)
+{
+ switch (type) {
+ case isl_fold_min:
+ return isl_fold_max;
+ case isl_fold_max:
+ return isl_fold_min;
+ case isl_fold_list:
+ return isl_fold_list;
+ }
+
+ isl_die(NULL, isl_error_internal, "unhandled isl_fold type", abort());
+}
static __isl_give isl_qpolynomial_fold *qpolynomial_fold_alloc(
- enum isl_fold type, __isl_take isl_dim *dim, int n)
+ enum isl_fold type, __isl_take isl_space *dim, int n)
{
isl_qpolynomial_fold *fold;
goto error;
isl_assert(dim->ctx, n >= 0, goto error);
- fold = isl_alloc(dim->ctx, struct isl_qpolynomial_fold,
+ fold = isl_calloc(dim->ctx, struct isl_qpolynomial_fold,
sizeof(struct isl_qpolynomial_fold) +
(n - 1) * sizeof(struct isl_qpolynomial *));
if (!fold)
return fold;
error:
- isl_dim_free(dim);
+ isl_space_free(dim);
+ return NULL;
+}
+
+isl_ctx *isl_qpolynomial_fold_get_ctx(__isl_keep isl_qpolynomial_fold *fold)
+{
+ return fold ? fold->dim->ctx : NULL;
+}
+
+__isl_give isl_space *isl_qpolynomial_fold_get_domain_space(
+ __isl_keep isl_qpolynomial_fold *fold)
+{
+ return fold ? isl_space_copy(fold->dim) : NULL;
+}
+
+__isl_give isl_space *isl_qpolynomial_fold_get_space(
+ __isl_keep isl_qpolynomial_fold *fold)
+{
+ isl_space *space;
+ if (!fold)
+ return NULL;
+ space = isl_space_copy(fold->dim);
+ space = isl_space_from_domain(space);
+ space = isl_space_add_dims(space, isl_dim_out, 1);
+ return space;
+}
+
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_reset_domain_space(
+ __isl_take isl_qpolynomial_fold *fold, __isl_take isl_space *dim)
+{
+ int i;
+
+ fold = isl_qpolynomial_fold_cow(fold);
+ if (!fold || !dim)
+ goto error;
+
+ for (i = 0; i < fold->n; ++i) {
+ fold->qp[i] = isl_qpolynomial_reset_domain_space(fold->qp[i],
+ isl_space_copy(dim));
+ if (!fold->qp[i])
+ goto error;
+ }
+
+ isl_space_free(fold->dim);
+ fold->dim = dim;
+
+ return fold;
+error:
+ isl_qpolynomial_fold_free(fold);
+ isl_space_free(dim);
return NULL;
}
+/* Reset the space of "fold". This function is called from isl_pw_templ.c
+ * and doesn't know if the space of an element object is represented
+ * directly or through its domain. It therefore passes along both.
+ */
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_reset_space_and_domain(
+ __isl_take isl_qpolynomial_fold *fold, __isl_take isl_space *space,
+ __isl_take isl_space *domain)
+{
+ isl_space_free(space);
+ return isl_qpolynomial_fold_reset_domain_space(fold, domain);
+}
+
int isl_qpolynomial_fold_involves_dims(__isl_keep isl_qpolynomial_fold *fold,
enum isl_dim_type type, unsigned first, unsigned n)
{
return 0;
}
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_set_dim_name(
+ __isl_take isl_qpolynomial_fold *fold,
+ enum isl_dim_type type, unsigned pos, const char *s)
+{
+ int i;
+
+ fold = isl_qpolynomial_fold_cow(fold);
+ if (!fold)
+ return NULL;
+ fold->dim = isl_space_set_dim_name(fold->dim, type, pos, s);
+ if (!fold->dim)
+ goto error;
+
+ for (i = 0; i < fold->n; ++i) {
+ fold->qp[i] = isl_qpolynomial_set_dim_name(fold->qp[i],
+ type, pos, s);
+ if (!fold->qp[i])
+ goto error;
+ }
+
+ return fold;
+error:
+ isl_qpolynomial_fold_free(fold);
+ return NULL;
+}
+
__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_drop_dims(
__isl_take isl_qpolynomial_fold *fold,
enum isl_dim_type type, unsigned first, unsigned n)
{
int i;
+ enum isl_dim_type set_type;
if (!fold)
return NULL;
if (n == 0)
return fold;
+ set_type = type == isl_dim_in ? isl_dim_set : type;
+
fold = isl_qpolynomial_fold_cow(fold);
if (!fold)
return NULL;
- fold->dim = isl_dim_drop(fold->dim, type, first, n);
+ fold->dim = isl_space_drop_dims(fold->dim, set_type, first, n);
if (!fold->dim)
goto error;
return NULL;
}
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_insert_dims(
+ __isl_take isl_qpolynomial_fold *fold,
+ enum isl_dim_type type, unsigned first, unsigned n)
+{
+ int i;
+
+ if (!fold)
+ return NULL;
+ if (n == 0 && !isl_space_is_named_or_nested(fold->dim, type))
+ return fold;
+
+ fold = isl_qpolynomial_fold_cow(fold);
+ if (!fold)
+ return NULL;
+ fold->dim = isl_space_insert_dims(fold->dim, type, first, n);
+ if (!fold->dim)
+ goto error;
+
+ for (i = 0; i < fold->n; ++i) {
+ fold->qp[i] = isl_qpolynomial_insert_dims(fold->qp[i],
+ type, first, n);
+ if (!fold->qp[i])
+ goto error;
+ }
+
+ return fold;
+error:
+ isl_qpolynomial_fold_free(fold);
+ return NULL;
+}
+
static int isl_qpolynomial_cst_sign(__isl_keep isl_qpolynomial *qp)
{
struct isl_upoly_cst *cst;
if (!rec)
return 0;
- d = isl_dim_total(qp->dim);
+ d = isl_space_dim(qp->dim, isl_dim_all);
v = isl_vec_alloc(set->ctx, 2 + d);
if (!v)
return 0;
isl_qpolynomial *r, *q;
isl_qpolynomial *t;
- min = isl_qpolynomial_cst(isl_dim_copy(qp->dim), l);
- base = isl_qpolynomial_pow(isl_dim_copy(qp->dim),
+ min = isl_qpolynomial_cst_on_domain(isl_space_copy(qp->dim), l);
+ base = isl_qpolynomial_var_pow_on_domain(isl_space_copy(qp->dim),
qp->upoly->var, 1);
- r = isl_qpolynomial_alloc(isl_dim_copy(qp->dim), 0,
+ r = isl_qpolynomial_alloc(isl_space_copy(qp->dim), 0,
isl_upoly_copy(rec->p[rec->n - 1]));
q = isl_qpolynomial_copy(r);
for (i = rec->n - 2; i >= 0; --i) {
r = isl_qpolynomial_mul(r, isl_qpolynomial_copy(min));
- t = isl_qpolynomial_alloc(isl_dim_copy(qp->dim), 0,
+ t = isl_qpolynomial_alloc(isl_space_copy(qp->dim), 0,
isl_upoly_copy(rec->p[i]));
r = isl_qpolynomial_add(r, t);
if (i == 0)
goto error;
isl_assert(fold1->dim->ctx, fold1->type == fold2->type, goto error);
- isl_assert(fold1->dim->ctx, isl_dim_equal(fold1->dim, fold2->dim),
+ isl_assert(fold1->dim->ctx, isl_space_is_equal(fold1->dim, fold2->dim),
goto error);
better = fold1->type == isl_fold_max ? -1 : 1;
return fold1;
}
- res = qpolynomial_fold_alloc(fold1->type, isl_dim_copy(fold1->dim),
+ res = qpolynomial_fold_alloc(fold1->type, isl_space_copy(fold1->dim),
fold1->n + fold2->n);
if (!res)
goto error;
return NULL;
}
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_add_qpolynomial(
+ __isl_take isl_qpolynomial_fold *fold, __isl_take isl_qpolynomial *qp)
+{
+ int i;
+
+ if (!fold || !qp)
+ goto error;
+
+ if (isl_qpolynomial_is_zero(qp)) {
+ isl_qpolynomial_free(qp);
+ return fold;
+ }
+
+ fold = isl_qpolynomial_fold_cow(fold);
+ if (!fold)
+ goto error;
+
+ for (i = 0; i < fold->n; ++i) {
+ fold->qp[i] = isl_qpolynomial_add(fold->qp[i],
+ isl_qpolynomial_copy(qp));
+ if (!fold->qp[i])
+ goto error;
+ }
+
+ isl_qpolynomial_free(qp);
+ return fold;
+error:
+ isl_qpolynomial_fold_free(fold);
+ isl_qpolynomial_free(qp);
+ return NULL;
+}
+
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_add_on_domain(
+ __isl_keep isl_set *dom,
+ __isl_take isl_qpolynomial_fold *fold1,
+ __isl_take isl_qpolynomial_fold *fold2)
+{
+ int i;
+ isl_qpolynomial_fold *res = NULL;
+
+ if (!fold1 || !fold2)
+ goto error;
+
+ if (isl_qpolynomial_fold_is_empty(fold1)) {
+ isl_qpolynomial_fold_free(fold1);
+ return fold2;
+ }
+
+ if (isl_qpolynomial_fold_is_empty(fold2)) {
+ isl_qpolynomial_fold_free(fold2);
+ return fold1;
+ }
+
+ if (fold1->n == 1 && fold2->n != 1)
+ return isl_qpolynomial_fold_add_on_domain(dom, fold2, fold1);
+
+ if (fold2->n == 1) {
+ res = isl_qpolynomial_fold_add_qpolynomial(fold1,
+ isl_qpolynomial_copy(fold2->qp[0]));
+ isl_qpolynomial_fold_free(fold2);
+ return res;
+ }
+
+ res = isl_qpolynomial_fold_add_qpolynomial(
+ isl_qpolynomial_fold_copy(fold1),
+ isl_qpolynomial_copy(fold2->qp[0]));
+
+ for (i = 1; i < fold2->n; ++i) {
+ isl_qpolynomial_fold *res_i;
+ res_i = isl_qpolynomial_fold_add_qpolynomial(
+ isl_qpolynomial_fold_copy(fold1),
+ isl_qpolynomial_copy(fold2->qp[i]));
+ res = isl_qpolynomial_fold_fold_on_domain(dom, res, res_i);
+ }
+
+ isl_qpolynomial_fold_free(fold1);
+ isl_qpolynomial_fold_free(fold2);
+ return res;
+error:
+ isl_qpolynomial_fold_free(res);
+ isl_qpolynomial_fold_free(fold1);
+ isl_qpolynomial_fold_free(fold2);
+ return NULL;
+}
+
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_substitute_equalities(
+ __isl_take isl_qpolynomial_fold *fold, __isl_take isl_basic_set *eq)
+{
+ int i;
+
+ if (!fold || !eq)
+ goto error;
+
+ fold = isl_qpolynomial_fold_cow(fold);
+ if (!fold)
+ return NULL;
+
+ for (i = 0; i < fold->n; ++i) {
+ fold->qp[i] = isl_qpolynomial_substitute_equalities(fold->qp[i],
+ isl_basic_set_copy(eq));
+ if (!fold->qp[i])
+ goto error;
+ }
+
+ isl_basic_set_free(eq);
+ return fold;
+error:
+ isl_basic_set_free(eq);
+ isl_qpolynomial_fold_free(fold);
+ return NULL;
+}
+
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_gist(
+ __isl_take isl_qpolynomial_fold *fold, __isl_take isl_set *context)
+{
+ int i;
+
+ if (!fold || !context)
+ goto error;
+
+ fold = isl_qpolynomial_fold_cow(fold);
+ if (!fold)
+ return NULL;
+
+ for (i = 0; i < fold->n; ++i) {
+ fold->qp[i] = isl_qpolynomial_gist(fold->qp[i],
+ isl_set_copy(context));
+ if (!fold->qp[i])
+ goto error;
+ }
+
+ isl_set_free(context);
+ return fold;
+error:
+ isl_set_free(context);
+ isl_qpolynomial_fold_free(fold);
+ return NULL;
+}
+
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_gist_params(
+ __isl_take isl_qpolynomial_fold *fold, __isl_take isl_set *context)
+{
+ isl_space *space = isl_qpolynomial_fold_get_domain_space(fold);
+ isl_set *dom_context = isl_set_universe(space);
+ dom_context = isl_set_intersect_params(dom_context, context);
+ return isl_qpolynomial_fold_gist(fold, dom_context);
+}
+
+#define HAS_TYPE
+
#undef PW
#define PW isl_pw_qpolynomial_fold
#undef EL
#define EL isl_qpolynomial_fold
+#undef EL_IS_ZERO
+#define EL_IS_ZERO is_empty
+#undef ZERO
+#define ZERO zero
#undef IS_ZERO
-#define IS_ZERO is_empty
+#define IS_ZERO is_zero
#undef FIELD
#define FIELD fold
-#undef ADD
-#define ADD(d,e1,e2) isl_qpolynomial_fold_fold_on_domain(d,e1,e2)
+#undef DEFAULT_IS_ZERO
+#define DEFAULT_IS_ZERO 1
+
+#define NO_NEG
+#define NO_PULLBACK
#include <isl_pw_templ.c>
+#undef UNION
+#define UNION isl_union_pw_qpolynomial_fold
+#undef PART
+#define PART isl_pw_qpolynomial_fold
+#undef PARTS
+#define PARTS pw_qpolynomial_fold
+#define ALIGN_DOMAIN
+
+#include <isl_union_templ.c>
+
__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_empty(enum isl_fold type,
- __isl_take isl_dim *dim)
+ __isl_take isl_space *dim)
{
return qpolynomial_fold_alloc(type, dim, 0);
}
if (!qp)
return NULL;
- fold = qpolynomial_fold_alloc(type, isl_dim_copy(qp->dim), 1);
+ fold = qpolynomial_fold_alloc(type, isl_space_copy(qp->dim), 1);
if (!fold)
goto error;
if (!fold)
return NULL;
dup = qpolynomial_fold_alloc(fold->type,
- isl_dim_copy(fold->dim), fold->n);
+ isl_space_copy(fold->dim), fold->n);
if (!dup)
return NULL;
+ dup->n = fold->n;
for (i = 0; i < fold->n; ++i) {
dup->qp[i] = isl_qpolynomial_copy(fold->qp[i]);
if (!dup->qp[i])
for (i = 0; i < fold->n; ++i)
isl_qpolynomial_free(fold->qp[i]);
- isl_dim_free(fold->dim);
+ isl_space_free(fold->dim);
free(fold);
}
goto error;
isl_assert(fold1->dim->ctx, fold1->type == fold2->type, goto error);
- isl_assert(fold1->dim->ctx, isl_dim_equal(fold1->dim, fold2->dim),
+ isl_assert(fold1->dim->ctx, isl_space_is_equal(fold1->dim, fold2->dim),
goto error);
if (isl_qpolynomial_fold_is_empty(fold1)) {
return fold1;
}
- res = qpolynomial_fold_alloc(fold1->type, isl_dim_copy(fold1->dim),
+ res = qpolynomial_fold_alloc(fold1->type, isl_space_copy(fold1->dim),
fold1->n + fold2->n);
if (!res)
goto error;
return NULL;
}
+__isl_give isl_pw_qpolynomial_fold *isl_pw_qpolynomial_fold_fold(
+ __isl_take isl_pw_qpolynomial_fold *pw1,
+ __isl_take isl_pw_qpolynomial_fold *pw2)
+{
+ int i, j, n;
+ struct isl_pw_qpolynomial_fold *res;
+ isl_set *set;
+
+ if (!pw1 || !pw2)
+ goto error;
+
+ isl_assert(pw1->dim->ctx, isl_space_is_equal(pw1->dim, pw2->dim), goto error);
+
+ if (isl_pw_qpolynomial_fold_is_zero(pw1)) {
+ isl_pw_qpolynomial_fold_free(pw1);
+ return pw2;
+ }
+
+ if (isl_pw_qpolynomial_fold_is_zero(pw2)) {
+ isl_pw_qpolynomial_fold_free(pw2);
+ return pw1;
+ }
+
+ if (pw1->type != pw2->type)
+ isl_die(pw1->dim->ctx, isl_error_invalid,
+ "fold types don't match", goto error);
+
+ n = (pw1->n + 1) * (pw2->n + 1);
+ res = isl_pw_qpolynomial_fold_alloc_size(isl_space_copy(pw1->dim),
+ pw1->type, n);
+
+ for (i = 0; i < pw1->n; ++i) {
+ set = isl_set_copy(pw1->p[i].set);
+ for (j = 0; j < pw2->n; ++j) {
+ struct isl_set *common;
+ isl_qpolynomial_fold *sum;
+ set = isl_set_subtract(set,
+ isl_set_copy(pw2->p[j].set));
+ common = isl_set_intersect(isl_set_copy(pw1->p[i].set),
+ isl_set_copy(pw2->p[j].set));
+ if (isl_set_plain_is_empty(common)) {
+ isl_set_free(common);
+ continue;
+ }
+
+ sum = isl_qpolynomial_fold_fold_on_domain(common,
+ isl_qpolynomial_fold_copy(pw1->p[i].fold),
+ isl_qpolynomial_fold_copy(pw2->p[j].fold));
+
+ res = isl_pw_qpolynomial_fold_add_piece(res, common, sum);
+ }
+ res = isl_pw_qpolynomial_fold_add_piece(res, set,
+ isl_qpolynomial_fold_copy(pw1->p[i].fold));
+ }
+
+ for (j = 0; j < pw2->n; ++j) {
+ set = isl_set_copy(pw2->p[j].set);
+ for (i = 0; i < pw1->n; ++i)
+ set = isl_set_subtract(set, isl_set_copy(pw1->p[i].set));
+ res = isl_pw_qpolynomial_fold_add_piece(res, set,
+ isl_qpolynomial_fold_copy(pw2->p[j].fold));
+ }
+
+ isl_pw_qpolynomial_fold_free(pw1);
+ isl_pw_qpolynomial_fold_free(pw2);
+
+ return res;
+error:
+ isl_pw_qpolynomial_fold_free(pw1);
+ isl_pw_qpolynomial_fold_free(pw2);
+ return NULL;
+}
+
+__isl_give isl_union_pw_qpolynomial_fold *isl_union_pw_qpolynomial_fold_fold_pw_qpolynomial_fold(
+ __isl_take isl_union_pw_qpolynomial_fold *u,
+ __isl_take isl_pw_qpolynomial_fold *part)
+{
+ uint32_t hash;
+ struct isl_hash_table_entry *entry;
+
+ u = isl_union_pw_qpolynomial_fold_cow(u);
+
+ if (!part || !u)
+ goto error;
+
+ isl_assert(u->dim->ctx, isl_space_match(part->dim, isl_dim_param, u->dim,
+ isl_dim_param), goto error);
+
+ hash = isl_space_get_hash(part->dim);
+ entry = isl_hash_table_find(u->dim->ctx, &u->table, hash,
+ &has_dim, part->dim, 1);
+ if (!entry)
+ goto error;
+
+ if (!entry->data)
+ entry->data = part;
+ else {
+ entry->data = isl_pw_qpolynomial_fold_fold(entry->data,
+ isl_pw_qpolynomial_fold_copy(part));
+ if (!entry->data)
+ goto error;
+ isl_pw_qpolynomial_fold_free(part);
+ }
+
+ return u;
+error:
+ isl_pw_qpolynomial_fold_free(part);
+ isl_union_pw_qpolynomial_fold_free(u);
+ return NULL;
+}
+
+static int fold_part(__isl_take isl_pw_qpolynomial_fold *part, void *user)
+{
+ isl_union_pw_qpolynomial_fold **u;
+ u = (isl_union_pw_qpolynomial_fold **)user;
+
+ *u = isl_union_pw_qpolynomial_fold_fold_pw_qpolynomial_fold(*u, part);
+
+ return 0;
+}
+
+__isl_give isl_union_pw_qpolynomial_fold *isl_union_pw_qpolynomial_fold_fold(
+ __isl_take isl_union_pw_qpolynomial_fold *u1,
+ __isl_take isl_union_pw_qpolynomial_fold *u2)
+{
+ u1 = isl_union_pw_qpolynomial_fold_cow(u1);
+
+ if (!u1 || !u2)
+ goto error;
+
+ if (isl_union_pw_qpolynomial_fold_foreach_pw_qpolynomial_fold(u2,
+ &fold_part, &u1) < 0)
+ goto error;
+
+ isl_union_pw_qpolynomial_fold_free(u2);
+
+ return u1;
+error:
+ isl_union_pw_qpolynomial_fold_free(u1);
+ isl_union_pw_qpolynomial_fold_free(u2);
+ return NULL;
+}
+
__isl_give isl_pw_qpolynomial_fold *isl_pw_qpolynomial_fold_from_pw_qpolynomial(
enum isl_fold type, __isl_take isl_pw_qpolynomial *pwqp)
{
if (!pwqp)
return NULL;
- pwf = isl_pw_qpolynomial_fold_alloc_(isl_dim_copy(pwqp->dim), pwqp->n);
+ pwf = isl_pw_qpolynomial_fold_alloc_size(isl_space_copy(pwqp->dim),
+ type, pwqp->n);
for (i = 0; i < pwqp->n; ++i)
pwf = isl_pw_qpolynomial_fold_add_piece(pwf,
return pwf;
}
-int isl_qpolynomial_fold_is_equal(__isl_keep isl_qpolynomial_fold *fold1,
- __isl_keep isl_qpolynomial_fold *fold2)
+__isl_give isl_pw_qpolynomial_fold *isl_pw_qpolynomial_fold_add(
+ __isl_take isl_pw_qpolynomial_fold *pwf1,
+ __isl_take isl_pw_qpolynomial_fold *pwf2)
+{
+ return isl_pw_qpolynomial_fold_union_add_(pwf1, pwf2);
+}
+
+int isl_qpolynomial_fold_plain_is_equal(__isl_keep isl_qpolynomial_fold *fold1,
+ __isl_keep isl_qpolynomial_fold *fold2)
{
int i;
/* We probably want to sort the qps first... */
for (i = 0; i < fold1->n; ++i) {
- int eq = isl_qpolynomial_is_equal(fold1->qp[i], fold2->qp[i]);
+ int eq = isl_qpolynomial_plain_is_equal(fold1->qp[i], fold2->qp[i]);
if (eq < 0 || !eq)
return eq;
}
if (!fold || !pnt)
goto error;
- isl_assert(pnt->dim->ctx, isl_dim_equal(pnt->dim, fold->dim), goto error);
+ isl_assert(pnt->dim->ctx, isl_space_is_equal(pnt->dim, fold->dim), goto error);
isl_assert(pnt->dim->ctx,
fold->type == isl_fold_max || fold->type == isl_fold_min,
goto error);
if (fold->n == 0)
- qp = isl_qpolynomial_zero(isl_dim_copy(fold->dim));
+ qp = isl_qpolynomial_zero_on_domain(isl_space_copy(fold->dim));
else {
int i;
qp = isl_qpolynomial_eval(isl_qpolynomial_copy(fold->qp[0]),
goto error;
if (fold->n == 0) {
- isl_dim *dim = isl_dim_copy(fold->dim);
+ isl_space *dim = isl_space_copy(fold->dim);
isl_set_free(set);
isl_qpolynomial_fold_free(fold);
- return isl_qpolynomial_zero(dim);
+ return isl_qpolynomial_zero_on_domain(dim);
}
opt = isl_qpolynomial_opt_on_domain(isl_qpolynomial_copy(fold->qp[0]),
isl_qpolynomial_fold_free(fold);
return NULL;
}
+
+/* Check whether for each quasi-polynomial in "fold2" there is
+ * a quasi-polynomial in "fold1" that dominates it on "set".
+ */
+static int qpolynomial_fold_covers_on_domain(__isl_keep isl_set *set,
+ __isl_keep isl_qpolynomial_fold *fold1,
+ __isl_keep isl_qpolynomial_fold *fold2)
+{
+ int i, j;
+ int covers;
+
+ if (!set || !fold1 || !fold2)
+ return -1;
+
+ covers = fold1->type == isl_fold_max ? 1 : -1;
+
+ for (i = 0; i < fold2->n; ++i) {
+ for (j = 0; j < fold1->n; ++j) {
+ isl_qpolynomial *d;
+ int sgn;
+
+ d = isl_qpolynomial_sub(
+ isl_qpolynomial_copy(fold1->qp[j]),
+ isl_qpolynomial_copy(fold2->qp[i]));
+ sgn = isl_qpolynomial_sign(set, d);
+ isl_qpolynomial_free(d);
+ if (sgn == covers)
+ break;
+ }
+ if (j >= fold1->n)
+ return 0;
+ }
+
+ return 1;
+}
+
+/* Check whether "pwf1" dominated "pwf2", i.e., the domain of "pwf1" contains
+ * that of "pwf2" and on each cell, the corresponding fold from pwf1 dominates
+ * that of pwf2.
+ */
+int isl_pw_qpolynomial_fold_covers(__isl_keep isl_pw_qpolynomial_fold *pwf1,
+ __isl_keep isl_pw_qpolynomial_fold *pwf2)
+{
+ int i, j;
+ isl_set *dom1, *dom2;
+ int is_subset;
+
+ if (!pwf1 || !pwf2)
+ return -1;
+
+ if (pwf2->n == 0)
+ return 1;
+ if (pwf1->n == 0)
+ return 0;
+
+ dom1 = isl_pw_qpolynomial_fold_domain(isl_pw_qpolynomial_fold_copy(pwf1));
+ dom2 = isl_pw_qpolynomial_fold_domain(isl_pw_qpolynomial_fold_copy(pwf2));
+ is_subset = isl_set_is_subset(dom2, dom1);
+ isl_set_free(dom1);
+ isl_set_free(dom2);
+
+ if (is_subset < 0 || !is_subset)
+ return is_subset;
+
+ for (i = 0; i < pwf2->n; ++i) {
+ for (j = 0; j < pwf1->n; ++j) {
+ int is_empty;
+ isl_set *common;
+ int covers;
+
+ common = isl_set_intersect(isl_set_copy(pwf1->p[j].set),
+ isl_set_copy(pwf2->p[i].set));
+ is_empty = isl_set_is_empty(common);
+ if (is_empty < 0 || is_empty) {
+ isl_set_free(common);
+ if (is_empty < 0)
+ return -1;
+ continue;
+ }
+ covers = qpolynomial_fold_covers_on_domain(common,
+ pwf1->p[j].fold, pwf2->p[i].fold);
+ isl_set_free(common);
+ if (covers < 0 || !covers)
+ return covers;
+ }
+ }
+
+ return 1;
+}
+
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_morph_domain(
+ __isl_take isl_qpolynomial_fold *fold, __isl_take isl_morph *morph)
+{
+ int i;
+ isl_ctx *ctx;
+
+ if (!fold || !morph)
+ goto error;
+
+ ctx = fold->dim->ctx;
+ isl_assert(ctx, isl_space_is_equal(fold->dim, morph->dom->dim), goto error);
+
+ fold = isl_qpolynomial_fold_cow(fold);
+ if (!fold)
+ goto error;
+
+ isl_space_free(fold->dim);
+ fold->dim = isl_space_copy(morph->ran->dim);
+ if (!fold->dim)
+ goto error;
+
+ for (i = 0; i < fold->n; ++i) {
+ fold->qp[i] = isl_qpolynomial_morph_domain(fold->qp[i],
+ isl_morph_copy(morph));
+ if (!fold->qp[i])
+ goto error;
+ }
+
+ isl_morph_free(morph);
+
+ return fold;
+error:
+ isl_qpolynomial_fold_free(fold);
+ isl_morph_free(morph);
+ return NULL;
+}
+
+enum isl_fold isl_qpolynomial_fold_get_type(__isl_keep isl_qpolynomial_fold *fold)
+{
+ if (!fold)
+ return isl_fold_list;
+ return fold->type;
+}
+
+enum isl_fold isl_union_pw_qpolynomial_fold_get_type(
+ __isl_keep isl_union_pw_qpolynomial_fold *upwf)
+{
+ if (!upwf)
+ return isl_fold_list;
+ return upwf->type;
+}
+
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_lift(
+ __isl_take isl_qpolynomial_fold *fold, __isl_take isl_space *dim)
+{
+ int i;
+
+ if (!fold || !dim)
+ goto error;
+
+ if (isl_space_is_equal(fold->dim, dim)) {
+ isl_space_free(dim);
+ return fold;
+ }
+
+ fold = isl_qpolynomial_fold_cow(fold);
+ if (!fold)
+ goto error;
+
+ isl_space_free(fold->dim);
+ fold->dim = isl_space_copy(dim);
+ if (!fold->dim)
+ goto error;
+
+ for (i = 0; i < fold->n; ++i) {
+ fold->qp[i] = isl_qpolynomial_lift(fold->qp[i],
+ isl_space_copy(dim));
+ if (!fold->qp[i])
+ goto error;
+ }
+
+ isl_space_free(dim);
+
+ return fold;
+error:
+ isl_qpolynomial_fold_free(fold);
+ isl_space_free(dim);
+ return NULL;
+}
+
+int isl_qpolynomial_fold_foreach_qpolynomial(
+ __isl_keep isl_qpolynomial_fold *fold,
+ int (*fn)(__isl_take isl_qpolynomial *qp, void *user), void *user)
+{
+ int i;
+
+ if (!fold)
+ return -1;
+
+ for (i = 0; i < fold->n; ++i)
+ if (fn(isl_qpolynomial_copy(fold->qp[i]), user) < 0)
+ return -1;
+
+ return 0;
+}
+
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_move_dims(
+ __isl_take isl_qpolynomial_fold *fold,
+ enum isl_dim_type dst_type, unsigned dst_pos,
+ enum isl_dim_type src_type, unsigned src_pos, unsigned n)
+{
+ int i;
+
+ if (n == 0)
+ return fold;
+
+ fold = isl_qpolynomial_fold_cow(fold);
+ if (!fold)
+ return NULL;
+
+ fold->dim = isl_space_move_dims(fold->dim, dst_type, dst_pos,
+ src_type, src_pos, n);
+ if (!fold->dim)
+ goto error;
+
+ for (i = 0; i < fold->n; ++i) {
+ fold->qp[i] = isl_qpolynomial_move_dims(fold->qp[i],
+ dst_type, dst_pos, src_type, src_pos, n);
+ if (!fold->qp[i])
+ goto error;
+ }
+
+ return fold;
+error:
+ isl_qpolynomial_fold_free(fold);
+ return NULL;
+}
+
+/* For each 0 <= i < "n", replace variable "first" + i of type "type"
+ * in fold->qp[k] by subs[i].
+ */
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_substitute(
+ __isl_take isl_qpolynomial_fold *fold,
+ enum isl_dim_type type, unsigned first, unsigned n,
+ __isl_keep isl_qpolynomial **subs)
+{
+ int i;
+
+ if (n == 0)
+ return fold;
+
+ fold = isl_qpolynomial_fold_cow(fold);
+ if (!fold)
+ return NULL;
+
+ for (i = 0; i < fold->n; ++i) {
+ fold->qp[i] = isl_qpolynomial_substitute(fold->qp[i],
+ type, first, n, subs);
+ if (!fold->qp[i])
+ goto error;
+ }
+
+ return fold;
+error:
+ isl_qpolynomial_fold_free(fold);
+ return NULL;
+}
+
+static int add_pwqp(__isl_take isl_pw_qpolynomial *pwqp, void *user)
+{
+ isl_ctx *ctx;
+ isl_pw_qpolynomial_fold *pwf;
+ isl_union_pw_qpolynomial_fold **upwf;
+ uint32_t hash;
+ struct isl_hash_table_entry *entry;
+
+ upwf = (isl_union_pw_qpolynomial_fold **)user;
+
+ ctx = pwqp->dim->ctx;
+ hash = isl_space_get_hash(pwqp->dim);
+ entry = isl_hash_table_find(ctx, &(*upwf)->table,
+ hash, &has_dim, pwqp->dim, 1);
+ if (!entry)
+ goto error;
+
+ pwf = isl_pw_qpolynomial_fold_from_pw_qpolynomial((*upwf)->type, pwqp);
+ if (!entry->data)
+ entry->data = pwf;
+ else {
+ entry->data = isl_pw_qpolynomial_fold_add(entry->data, pwf);
+ if (!entry->data)
+ return -1;
+ if (isl_pw_qpolynomial_fold_is_zero(entry->data)) {
+ isl_pw_qpolynomial_fold_free(entry->data);
+ isl_hash_table_remove(ctx, &(*upwf)->table, entry);
+ }
+ }
+
+ return 0;
+error:
+ isl_pw_qpolynomial_free(pwqp);
+ return -1;
+}
+
+__isl_give isl_union_pw_qpolynomial_fold *isl_union_pw_qpolynomial_fold_add_union_pw_qpolynomial(
+ __isl_take isl_union_pw_qpolynomial_fold *upwf,
+ __isl_take isl_union_pw_qpolynomial *upwqp)
+{
+ upwf = isl_union_pw_qpolynomial_fold_align_params(upwf,
+ isl_union_pw_qpolynomial_get_space(upwqp));
+ upwqp = isl_union_pw_qpolynomial_align_params(upwqp,
+ isl_union_pw_qpolynomial_fold_get_space(upwf));
+
+ upwf = isl_union_pw_qpolynomial_fold_cow(upwf);
+ if (!upwf || !upwqp)
+ goto error;
+
+ if (isl_union_pw_qpolynomial_foreach_pw_qpolynomial(upwqp, &add_pwqp,
+ &upwf) < 0)
+ goto error;
+
+ isl_union_pw_qpolynomial_free(upwqp);
+
+ return upwf;
+error:
+ isl_union_pw_qpolynomial_fold_free(upwf);
+ isl_union_pw_qpolynomial_free(upwqp);
+ return NULL;
+}
+
+static int join_compatible(__isl_keep isl_space *dim1, __isl_keep isl_space *dim2)
+{
+ int m;
+ m = isl_space_match(dim1, isl_dim_param, dim2, isl_dim_param);
+ if (m < 0 || !m)
+ return m;
+ return isl_space_tuple_match(dim1, isl_dim_out, dim2, isl_dim_in);
+}
+
+/* Compute the intersection of the range of the map and the domain
+ * of the piecewise quasipolynomial reduction and then compute a bound
+ * on the associated quasipolynomial reduction over all elements
+ * in this intersection.
+ *
+ * We first introduce some unconstrained dimensions in the
+ * piecewise quasipolynomial, intersect the resulting domain
+ * with the wrapped map and the compute the sum.
+ */
+__isl_give isl_pw_qpolynomial_fold *isl_map_apply_pw_qpolynomial_fold(
+ __isl_take isl_map *map, __isl_take isl_pw_qpolynomial_fold *pwf,
+ int *tight)
+{
+ isl_ctx *ctx;
+ isl_set *dom;
+ isl_space *map_dim;
+ isl_space *pwf_dim;
+ unsigned n_in;
+ int ok;
+
+ ctx = isl_map_get_ctx(map);
+ if (!ctx)
+ goto error;
+
+ map_dim = isl_map_get_space(map);
+ pwf_dim = isl_pw_qpolynomial_fold_get_space(pwf);
+ ok = join_compatible(map_dim, pwf_dim);
+ isl_space_free(map_dim);
+ isl_space_free(pwf_dim);
+ if (!ok)
+ isl_die(ctx, isl_error_invalid, "incompatible dimensions",
+ goto error);
+
+ n_in = isl_map_dim(map, isl_dim_in);
+ pwf = isl_pw_qpolynomial_fold_insert_dims(pwf, isl_dim_in, 0, n_in);
+
+ dom = isl_map_wrap(map);
+ pwf = isl_pw_qpolynomial_fold_reset_domain_space(pwf,
+ isl_set_get_space(dom));
+
+ pwf = isl_pw_qpolynomial_fold_intersect_domain(pwf, dom);
+ pwf = isl_pw_qpolynomial_fold_bound(pwf, tight);
+
+ return pwf;
+error:
+ isl_map_free(map);
+ isl_pw_qpolynomial_fold_free(pwf);
+ return NULL;
+}
+
+__isl_give isl_pw_qpolynomial_fold *isl_set_apply_pw_qpolynomial_fold(
+ __isl_take isl_set *set, __isl_take isl_pw_qpolynomial_fold *pwf,
+ int *tight)
+{
+ return isl_map_apply_pw_qpolynomial_fold(set, pwf, tight);
+}
+
+struct isl_apply_fold_data {
+ isl_union_pw_qpolynomial_fold *upwf;
+ isl_union_pw_qpolynomial_fold *res;
+ isl_map *map;
+ int tight;
+};
+
+static int pw_qpolynomial_fold_apply(__isl_take isl_pw_qpolynomial_fold *pwf,
+ void *user)
+{
+ isl_space *map_dim;
+ isl_space *pwf_dim;
+ struct isl_apply_fold_data *data = user;
+ int ok;
+
+ map_dim = isl_map_get_space(data->map);
+ pwf_dim = isl_pw_qpolynomial_fold_get_space(pwf);
+ ok = join_compatible(map_dim, pwf_dim);
+ isl_space_free(map_dim);
+ isl_space_free(pwf_dim);
+
+ if (ok) {
+ pwf = isl_map_apply_pw_qpolynomial_fold(isl_map_copy(data->map),
+ pwf, data->tight ? &data->tight : NULL);
+ data->res = isl_union_pw_qpolynomial_fold_fold_pw_qpolynomial_fold(
+ data->res, pwf);
+ } else
+ isl_pw_qpolynomial_fold_free(pwf);
+
+ return 0;
+}
+
+static int map_apply(__isl_take isl_map *map, void *user)
+{
+ struct isl_apply_fold_data *data = user;
+ int r;
+
+ data->map = map;
+ r = isl_union_pw_qpolynomial_fold_foreach_pw_qpolynomial_fold(
+ data->upwf, &pw_qpolynomial_fold_apply, data);
+
+ isl_map_free(map);
+ return r;
+}
+
+__isl_give isl_union_pw_qpolynomial_fold *isl_union_map_apply_union_pw_qpolynomial_fold(
+ __isl_take isl_union_map *umap,
+ __isl_take isl_union_pw_qpolynomial_fold *upwf, int *tight)
+{
+ isl_space *dim;
+ enum isl_fold type;
+ struct isl_apply_fold_data data;
+
+ upwf = isl_union_pw_qpolynomial_fold_align_params(upwf,
+ isl_union_map_get_space(umap));
+ umap = isl_union_map_align_params(umap,
+ isl_union_pw_qpolynomial_fold_get_space(upwf));
+
+ data.upwf = upwf;
+ data.tight = tight ? 1 : 0;
+ dim = isl_union_pw_qpolynomial_fold_get_space(upwf);
+ type = isl_union_pw_qpolynomial_fold_get_type(upwf);
+ data.res = isl_union_pw_qpolynomial_fold_zero(dim, type);
+ if (isl_union_map_foreach_map(umap, &map_apply, &data) < 0)
+ goto error;
+
+ isl_union_map_free(umap);
+ isl_union_pw_qpolynomial_fold_free(upwf);
+
+ if (tight)
+ *tight = data.tight;
+
+ return data.res;
+error:
+ isl_union_map_free(umap);
+ isl_union_pw_qpolynomial_fold_free(upwf);
+ isl_union_pw_qpolynomial_fold_free(data.res);
+ return NULL;
+}
+
+__isl_give isl_union_pw_qpolynomial_fold *isl_union_set_apply_union_pw_qpolynomial_fold(
+ __isl_take isl_union_set *uset,
+ __isl_take isl_union_pw_qpolynomial_fold *upwf, int *tight)
+{
+ return isl_union_map_apply_union_pw_qpolynomial_fold(uset, upwf, tight);
+}
+
+/* Reorder the dimension of "fold" according to the given reordering.
+ */
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_realign_domain(
+ __isl_take isl_qpolynomial_fold *fold, __isl_take isl_reordering *r)
+{
+ int i;
+
+ fold = isl_qpolynomial_fold_cow(fold);
+ if (!fold || !r)
+ goto error;
+
+ for (i = 0; i < fold->n; ++i) {
+ fold->qp[i] = isl_qpolynomial_realign_domain(fold->qp[i],
+ isl_reordering_copy(r));
+ if (!fold->qp[i])
+ goto error;
+ }
+
+ fold = isl_qpolynomial_fold_reset_domain_space(fold,
+ isl_space_copy(r->dim));
+
+ isl_reordering_free(r);
+
+ return fold;
+error:
+ isl_qpolynomial_fold_free(fold);
+ isl_reordering_free(r);
+ return NULL;
+}
+
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_mul_isl_int(
+ __isl_take isl_qpolynomial_fold *fold, isl_int v)
+{
+ int i;
+
+ if (isl_int_is_one(v))
+ return fold;
+ if (fold && isl_int_is_zero(v)) {
+ isl_qpolynomial_fold *zero;
+ isl_space *dim = isl_space_copy(fold->dim);
+ zero = isl_qpolynomial_fold_empty(fold->type, dim);
+ isl_qpolynomial_fold_free(fold);
+ return zero;
+ }
+
+ fold = isl_qpolynomial_fold_cow(fold);
+ if (!fold)
+ return NULL;
+
+ if (isl_int_is_neg(v))
+ fold->type = isl_fold_type_negate(fold->type);
+ for (i = 0; i < fold->n; ++i) {
+ fold->qp[i] = isl_qpolynomial_mul_isl_int(fold->qp[i], v);
+ if (!fold->qp[i])
+ goto error;
+ }
+
+ return fold;
+error:
+ isl_qpolynomial_fold_free(fold);
+ return NULL;
+}
+
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_scale(
+ __isl_take isl_qpolynomial_fold *fold, isl_int v)
+{
+ return isl_qpolynomial_fold_mul_isl_int(fold, v);
+}
projects / platform / upstream / isl.git / blobdiff