nexmon – Rev 1
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/*
* Copyright 2010-2011 INRIA Saclay
*
* Use of this software is governed by the GNU LGPLv2.1 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/ctx.h>
#include <isl/hash.h>
#include <isl/map.h>
#include <isl/set.h>
#include <isl_space_private.h>
#include <isl_union_map_private.h>
#include <isl/union_set.h>
/* Is this union set a parameter domain?
*/
int isl_union_set_is_params(__isl_keep isl_union_set *uset)
{
isl_set *set;
int params;
if (!uset)
return -1;
if (uset->table.n != 1)
return 0;
set = isl_set_from_union_set(isl_union_set_copy(uset));
params = isl_set_is_params(set);
isl_set_free(set);
return params;
}
static __isl_give isl_union_map *isl_union_map_alloc(__isl_take isl_space *dim,
int size)
{
isl_union_map *umap;
if (!dim)
return NULL;
umap = isl_calloc_type(dim->ctx, isl_union_map);
if (!umap)
return NULL;
umap->ref = 1;
umap->dim = dim;
if (isl_hash_table_init(dim->ctx, &umap->table, size) < 0)
goto error;
return umap;
error:
isl_space_free(dim);
isl_union_map_free(umap);
return NULL;
}
__isl_give isl_union_map *isl_union_map_empty(__isl_take isl_space *dim)
{
return isl_union_map_alloc(dim, 16);
}
__isl_give isl_union_set *isl_union_set_empty(__isl_take isl_space *dim)
{
return isl_union_map_empty(dim);
}
isl_ctx *isl_union_map_get_ctx(__isl_keep isl_union_map *umap)
{
return umap ? umap->dim->ctx : NULL;
}
isl_ctx *isl_union_set_get_ctx(__isl_keep isl_union_set *uset)
{
return uset ? uset->dim->ctx : NULL;
}
__isl_give isl_space *isl_union_map_get_space(__isl_keep isl_union_map *umap)
{
if (!umap)
return NULL;
return isl_space_copy(umap->dim);
}
__isl_give isl_space *isl_union_set_get_space(__isl_keep isl_union_set *uset)
{
return isl_union_map_get_space(uset);
}
static int free_umap_entry(void **entry, void *user)
{
isl_map *map = *entry;
isl_map_free(map);
return 0;
}
static int add_map(__isl_take isl_map *map, void *user)
{
isl_union_map **umap = (isl_union_map **)user;
*umap = isl_union_map_add_map(*umap, map);
return 0;
}
__isl_give isl_union_map *isl_union_map_dup(__isl_keep isl_union_map *umap)
{
isl_union_map *dup;
if (!umap)
return NULL;
dup = isl_union_map_empty(isl_space_copy(umap->dim));
if (isl_union_map_foreach_map(umap, &add_map, &dup) < 0)
goto error;
return dup;
error:
isl_union_map_free(dup);
return NULL;
}
__isl_give isl_union_map *isl_union_map_cow(__isl_take isl_union_map *umap)
{
if (!umap)
return NULL;
if (umap->ref == 1)
return umap;
umap->ref--;
return isl_union_map_dup(umap);
}
struct isl_union_align {
isl_reordering *exp;
isl_union_map *res;
};
static int align_entry(void **entry, void *user)
{
isl_map *map = *entry;
isl_reordering *exp;
struct isl_union_align *data = user;
exp = isl_reordering_extend_space(isl_reordering_copy(data->exp),
isl_map_get_space(map));
data->res = isl_union_map_add_map(data->res,
isl_map_realign(isl_map_copy(map), exp));
return 0;
}
/* Align the parameters of umap along those of model.
* The result has the parameters of model first, in the same order
* as they appear in model, followed by any remaining parameters of
* umap that do not appear in model.
*/
__isl_give isl_union_map *isl_union_map_align_params(
__isl_take isl_union_map *umap, __isl_take isl_space *model)
{
struct isl_union_align data = { NULL, NULL };
if (!umap || !model)
goto error;
if (isl_space_match(umap->dim, isl_dim_param, model, isl_dim_param)) {
isl_space_free(model);
return umap;
}
model = isl_space_params(model);
data.exp = isl_parameter_alignment_reordering(umap->dim, model);
if (!data.exp)
goto error;
data.res = isl_union_map_alloc(isl_space_copy(data.exp->dim),
umap->table.n);
if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
&align_entry, &data) < 0)
goto error;
isl_reordering_free(data.exp);
isl_union_map_free(umap);
isl_space_free(model);
return data.res;
error:
isl_reordering_free(data.exp);
isl_union_map_free(umap);
isl_union_map_free(data.res);
isl_space_free(model);
return NULL;
}
__isl_give isl_union_set *isl_union_set_align_params(
__isl_take isl_union_set *uset, __isl_take isl_space *model)
{
return isl_union_map_align_params(uset, model);
}
__isl_give isl_union_map *isl_union_map_union(__isl_take isl_union_map *umap1,
__isl_take isl_union_map *umap2)
{
umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
umap1 = isl_union_map_cow(umap1);
if (!umap1 || !umap2)
goto error;
if (isl_union_map_foreach_map(umap2, &add_map, &umap1) < 0)
goto error;
isl_union_map_free(umap2);
return umap1;
error:
isl_union_map_free(umap1);
isl_union_map_free(umap2);
return NULL;
}
__isl_give isl_union_set *isl_union_set_union(__isl_take isl_union_set *uset1,
__isl_take isl_union_set *uset2)
{
return isl_union_map_union(uset1, uset2);
}
__isl_give isl_union_map *isl_union_map_copy(__isl_keep isl_union_map *umap)
{
if (!umap)
return NULL;
umap->ref++;
return umap;
}
__isl_give isl_union_set *isl_union_set_copy(__isl_keep isl_union_set *uset)
{
return isl_union_map_copy(uset);
}
void *isl_union_map_free(__isl_take isl_union_map *umap)
{
if (!umap)
return NULL;
if (--umap->ref > 0)
return NULL;
isl_hash_table_foreach(umap->dim->ctx, &umap->table,
&free_umap_entry, NULL);
isl_hash_table_clear(&umap->table);
isl_space_free(umap->dim);
free(umap);
return NULL;
}
void *isl_union_set_free(__isl_take isl_union_set *uset)
{
return isl_union_map_free(uset);
}
static int has_dim(const void *entry, const void *val)
{
isl_map *map = (isl_map *)entry;
isl_space *dim = (isl_space *)val;
return isl_space_is_equal(map->dim, dim);
}
__isl_give isl_union_map *isl_union_map_add_map(__isl_take isl_union_map *umap,
__isl_take isl_map *map)
{
uint32_t hash;
struct isl_hash_table_entry *entry;
if (!map || !umap)
goto error;
if (isl_map_plain_is_empty(map)) {
isl_map_free(map);
return umap;
}
if (!isl_space_match(map->dim, isl_dim_param, umap->dim, isl_dim_param)) {
umap = isl_union_map_align_params(umap, isl_map_get_space(map));
map = isl_map_align_params(map, isl_union_map_get_space(umap));
}
umap = isl_union_map_cow(umap);
if (!map || !umap)
goto error;
hash = isl_space_get_hash(map->dim);
entry = isl_hash_table_find(umap->dim->ctx, &umap->table, hash,
&has_dim, map->dim, 1);
if (!entry)
goto error;
if (!entry->data)
entry->data = map;
else {
entry->data = isl_map_union(entry->data, isl_map_copy(map));
if (!entry->data)
goto error;
isl_map_free(map);
}
return umap;
error:
isl_map_free(map);
isl_union_map_free(umap);
return NULL;
}
__isl_give isl_union_set *isl_union_set_add_set(__isl_take isl_union_set *uset,
__isl_take isl_set *set)
{
return isl_union_map_add_map(uset, (isl_map *)set);
}
__isl_give isl_union_map *isl_union_map_from_map(__isl_take isl_map *map)
{
isl_space *dim;
isl_union_map *umap;
if (!map)
return NULL;
dim = isl_map_get_space(map);
dim = isl_space_params(dim);
umap = isl_union_map_empty(dim);
umap = isl_union_map_add_map(umap, map);
return umap;
}
__isl_give isl_union_set *isl_union_set_from_set(__isl_take isl_set *set)
{
return isl_union_map_from_map((isl_map *)set);
}
struct isl_union_map_foreach_data
{
int (*fn)(__isl_take isl_map *map, void *user);
void *user;
};
static int call_on_copy(void **entry, void *user)
{
isl_map *map = *entry;
struct isl_union_map_foreach_data *data;
data = (struct isl_union_map_foreach_data *)user;
return data->fn(isl_map_copy(map), data->user);
}
int isl_union_map_n_map(__isl_keep isl_union_map *umap)
{
return umap ? umap->table.n : 0;
}
int isl_union_set_n_set(__isl_keep isl_union_set *uset)
{
return uset ? uset->table.n : 0;
}
int isl_union_map_foreach_map(__isl_keep isl_union_map *umap,
int (*fn)(__isl_take isl_map *map, void *user), void *user)
{
struct isl_union_map_foreach_data data = { fn, user };
if (!umap)
return -1;
return isl_hash_table_foreach(umap->dim->ctx, &umap->table,
&call_on_copy, &data);
}
static int copy_map(void **entry, void *user)
{
isl_map *map = *entry;
isl_map **map_p = user;
*map_p = isl_map_copy(map);
return -1;
}
__isl_give isl_map *isl_map_from_union_map(__isl_take isl_union_map *umap)
{
isl_ctx *ctx;
isl_map *map = NULL;
if (!umap)
return NULL;
ctx = isl_union_map_get_ctx(umap);
if (umap->table.n != 1)
isl_die(ctx, isl_error_invalid,
"union map needs to contain elements in exactly "
"one space", return isl_union_map_free(umap));
isl_hash_table_foreach(ctx, &umap->table, ©_map, &map);
isl_union_map_free(umap);
return map;
}
__isl_give isl_set *isl_set_from_union_set(__isl_take isl_union_set *uset)
{
return isl_map_from_union_map(uset);
}
__isl_give isl_map *isl_union_map_extract_map(__isl_keep isl_union_map *umap,
__isl_take isl_space *dim)
{
uint32_t hash;
struct isl_hash_table_entry *entry;
if (!umap || !dim)
goto error;
hash = isl_space_get_hash(dim);
entry = isl_hash_table_find(umap->dim->ctx, &umap->table, hash,
&has_dim, dim, 0);
if (!entry)
return isl_map_empty(dim);
isl_space_free(dim);
return isl_map_copy(entry->data);
error:
isl_space_free(dim);
return NULL;
}
__isl_give isl_set *isl_union_set_extract_set(__isl_keep isl_union_set *uset,
__isl_take isl_space *dim)
{
return (isl_set *)isl_union_map_extract_map(uset, dim);
}
/* Check if umap contains a map in the given space.
*/
__isl_give int isl_union_map_contains(__isl_keep isl_union_map *umap,
__isl_keep isl_space *dim)
{
uint32_t hash;
struct isl_hash_table_entry *entry;
if (!umap || !dim)
return -1;
hash = isl_space_get_hash(dim);
entry = isl_hash_table_find(umap->dim->ctx, &umap->table, hash,
&has_dim, dim, 0);
return !!entry;
}
__isl_give int isl_union_set_contains(__isl_keep isl_union_set *uset,
__isl_keep isl_space *dim)
{
return isl_union_map_contains(uset, dim);
}
int isl_union_set_foreach_set(__isl_keep isl_union_set *uset,
int (*fn)(__isl_take isl_set *set, void *user), void *user)
{
return isl_union_map_foreach_map(uset,
(int(*)(__isl_take isl_map *, void*))fn, user);
}
struct isl_union_set_foreach_point_data {
int (*fn)(__isl_take isl_point *pnt, void *user);
void *user;
};
static int foreach_point(__isl_take isl_set *set, void *user)
{
struct isl_union_set_foreach_point_data *data = user;
int r;
r = isl_set_foreach_point(set, data->fn, data->user);
isl_set_free(set);
return r;
}
int isl_union_set_foreach_point(__isl_keep isl_union_set *uset,
int (*fn)(__isl_take isl_point *pnt, void *user), void *user)
{
struct isl_union_set_foreach_point_data data = { fn, user };
return isl_union_set_foreach_set(uset, &foreach_point, &data);
}
struct isl_union_map_gen_bin_data {
isl_union_map *umap2;
isl_union_map *res;
};
static int subtract_entry(void **entry, void *user)
{
struct isl_union_map_gen_bin_data *data = user;
uint32_t hash;
struct isl_hash_table_entry *entry2;
isl_map *map = *entry;
hash = isl_space_get_hash(map->dim);
entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
hash, &has_dim, map->dim, 0);
map = isl_map_copy(map);
if (entry2) {
int empty;
map = isl_map_subtract(map, isl_map_copy(entry2->data));
empty = isl_map_is_empty(map);
if (empty < 0) {
isl_map_free(map);
return -1;
}
if (empty) {
isl_map_free(map);
return 0;
}
}
data->res = isl_union_map_add_map(data->res, map);
return 0;
}
static __isl_give isl_union_map *gen_bin_op(__isl_take isl_union_map *umap1,
__isl_take isl_union_map *umap2, int (*fn)(void **, void *))
{
struct isl_union_map_gen_bin_data data = { NULL, NULL };
umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
if (!umap1 || !umap2)
goto error;
data.umap2 = umap2;
data.res = isl_union_map_alloc(isl_space_copy(umap1->dim),
umap1->table.n);
if (isl_hash_table_foreach(umap1->dim->ctx, &umap1->table,
fn, &data) < 0)
goto error;
isl_union_map_free(umap1);
isl_union_map_free(umap2);
return data.res;
error:
isl_union_map_free(umap1);
isl_union_map_free(umap2);
isl_union_map_free(data.res);
return NULL;
}
__isl_give isl_union_map *isl_union_map_subtract(
__isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
{
return gen_bin_op(umap1, umap2, &subtract_entry);
}
__isl_give isl_union_set *isl_union_set_subtract(
__isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
{
return isl_union_map_subtract(uset1, uset2);
}
struct isl_union_map_gen_bin_set_data {
isl_set *set;
isl_union_map *res;
};
static int intersect_params_entry(void **entry, void *user)
{
struct isl_union_map_gen_bin_set_data *data = user;
isl_map *map = *entry;
int empty;
map = isl_map_copy(map);
map = isl_map_intersect_params(map, isl_set_copy(data->set));
empty = isl_map_is_empty(map);
if (empty < 0) {
isl_map_free(map);
return -1;
}
data->res = isl_union_map_add_map(data->res, map);
return 0;
}
static __isl_give isl_union_map *gen_bin_set_op(__isl_take isl_union_map *umap,
__isl_take isl_set *set, int (*fn)(void **, void *))
{
struct isl_union_map_gen_bin_set_data data = { NULL, NULL };
umap = isl_union_map_align_params(umap, isl_set_get_space(set));
set = isl_set_align_params(set, isl_union_map_get_space(umap));
if (!umap || !set)
goto error;
data.set = set;
data.res = isl_union_map_alloc(isl_space_copy(umap->dim),
umap->table.n);
if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
fn, &data) < 0)
goto error;
isl_union_map_free(umap);
isl_set_free(set);
return data.res;
error:
isl_union_map_free(umap);
isl_set_free(set);
isl_union_map_free(data.res);
return NULL;
}
__isl_give isl_union_map *isl_union_map_intersect_params(
__isl_take isl_union_map *umap, __isl_take isl_set *set)
{
return gen_bin_set_op(umap, set, &intersect_params_entry);
}
__isl_give isl_union_set *isl_union_set_intersect_params(
__isl_take isl_union_set *uset, __isl_take isl_set *set)
{
return isl_union_map_intersect_params(uset, set);
}
static __isl_give isl_union_map *union_map_intersect_params(
__isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
{
return isl_union_map_intersect_params(umap,
isl_set_from_union_set(uset));
}
static __isl_give isl_union_map *union_map_gist_params(
__isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
{
return isl_union_map_gist_params(umap, isl_set_from_union_set(uset));
}
struct isl_union_map_match_bin_data {
isl_union_map *umap2;
isl_union_map *res;
__isl_give isl_map *(*fn)(__isl_take isl_map*, __isl_take isl_map*);
};
static int match_bin_entry(void **entry, void *user)
{
struct isl_union_map_match_bin_data *data = user;
uint32_t hash;
struct isl_hash_table_entry *entry2;
isl_map *map = *entry;
int empty;
hash = isl_space_get_hash(map->dim);
entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
hash, &has_dim, map->dim, 0);
if (!entry2)
return 0;
map = isl_map_copy(map);
map = data->fn(map, isl_map_copy(entry2->data));
empty = isl_map_is_empty(map);
if (empty < 0) {
isl_map_free(map);
return -1;
}
if (empty) {
isl_map_free(map);
return 0;
}
data->res = isl_union_map_add_map(data->res, map);
return 0;
}
static __isl_give isl_union_map *match_bin_op(__isl_take isl_union_map *umap1,
__isl_take isl_union_map *umap2,
__isl_give isl_map *(*fn)(__isl_take isl_map*, __isl_take isl_map*))
{
struct isl_union_map_match_bin_data data = { NULL, NULL, fn };
umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
if (!umap1 || !umap2)
goto error;
data.umap2 = umap2;
data.res = isl_union_map_alloc(isl_space_copy(umap1->dim),
umap1->table.n);
if (isl_hash_table_foreach(umap1->dim->ctx, &umap1->table,
&match_bin_entry, &data) < 0)
goto error;
isl_union_map_free(umap1);
isl_union_map_free(umap2);
return data.res;
error:
isl_union_map_free(umap1);
isl_union_map_free(umap2);
isl_union_map_free(data.res);
return NULL;
}
__isl_give isl_union_map *isl_union_map_intersect(
__isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
{
return match_bin_op(umap1, umap2, &isl_map_intersect);
}
/* Compute the intersection of the two union_sets.
* As a special case, if exactly one of the two union_sets
* is a parameter domain, then intersect the parameter domain
* of the other one with this set.
*/
__isl_give isl_union_set *isl_union_set_intersect(
__isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
{
int p1, p2;
p1 = isl_union_set_is_params(uset1);
p2 = isl_union_set_is_params(uset2);
if (p1 < 0 || p2 < 0)
goto error;
if (!p1 && p2)
return union_map_intersect_params(uset1, uset2);
if (p1 && !p2)
return union_map_intersect_params(uset2, uset1);
return isl_union_map_intersect(uset1, uset2);
error:
isl_union_set_free(uset1);
isl_union_set_free(uset2);
return NULL;
}
static int gist_params_entry(void **entry, void *user)
{
struct isl_union_map_gen_bin_set_data *data = user;
isl_map *map = *entry;
int empty;
map = isl_map_copy(map);
map = isl_map_gist_params(map, isl_set_copy(data->set));
empty = isl_map_is_empty(map);
if (empty < 0) {
isl_map_free(map);
return -1;
}
data->res = isl_union_map_add_map(data->res, map);
return 0;
}
__isl_give isl_union_map *isl_union_map_gist_params(
__isl_take isl_union_map *umap, __isl_take isl_set *set)
{
return gen_bin_set_op(umap, set, &gist_params_entry);
}
__isl_give isl_union_set *isl_union_set_gist_params(
__isl_take isl_union_set *uset, __isl_take isl_set *set)
{
return isl_union_map_gist_params(uset, set);
}
__isl_give isl_union_map *isl_union_map_gist(__isl_take isl_union_map *umap,
__isl_take isl_union_map *context)
{
return match_bin_op(umap, context, &isl_map_gist);
}
__isl_give isl_union_set *isl_union_set_gist(__isl_take isl_union_set *uset,
__isl_take isl_union_set *context)
{
if (isl_union_set_is_params(context))
return union_map_gist_params(uset, context);
return isl_union_map_gist(uset, context);
}
static __isl_give isl_map *lex_le_set(__isl_take isl_map *set1,
__isl_take isl_map *set2)
{
return isl_set_lex_le_set((isl_set *)set1, (isl_set *)set2);
}
static __isl_give isl_map *lex_lt_set(__isl_take isl_map *set1,
__isl_take isl_map *set2)
{
return isl_set_lex_lt_set((isl_set *)set1, (isl_set *)set2);
}
__isl_give isl_union_map *isl_union_set_lex_lt_union_set(
__isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
{
return match_bin_op(uset1, uset2, &lex_lt_set);
}
__isl_give isl_union_map *isl_union_set_lex_le_union_set(
__isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
{
return match_bin_op(uset1, uset2, &lex_le_set);
}
__isl_give isl_union_map *isl_union_set_lex_gt_union_set(
__isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
{
return isl_union_map_reverse(isl_union_set_lex_lt_union_set(uset2, uset1));
}
__isl_give isl_union_map *isl_union_set_lex_ge_union_set(
__isl_take isl_union_set *uset1, __isl_take isl_union_set *uset2)
{
return isl_union_map_reverse(isl_union_set_lex_le_union_set(uset2, uset1));
}
__isl_give isl_union_map *isl_union_map_lex_gt_union_map(
__isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
{
return isl_union_map_reverse(isl_union_map_lex_lt_union_map(umap2, umap1));
}
__isl_give isl_union_map *isl_union_map_lex_ge_union_map(
__isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
{
return isl_union_map_reverse(isl_union_map_lex_le_union_map(umap2, umap1));
}
static int intersect_domain_entry(void **entry, void *user)
{
struct isl_union_map_gen_bin_data *data = user;
uint32_t hash;
struct isl_hash_table_entry *entry2;
isl_space *dim;
isl_map *map = *entry;
int empty;
dim = isl_map_get_space(map);
dim = isl_space_domain(dim);
hash = isl_space_get_hash(dim);
entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
hash, &has_dim, dim, 0);
isl_space_free(dim);
if (!entry2)
return 0;
map = isl_map_copy(map);
map = isl_map_intersect_domain(map, isl_set_copy(entry2->data));
empty = isl_map_is_empty(map);
if (empty < 0) {
isl_map_free(map);
return -1;
}
if (empty) {
isl_map_free(map);
return 0;
}
data->res = isl_union_map_add_map(data->res, map);
return 0;
}
/* Intersect the domain of "umap" with "uset".
* If "uset" is a parameters domain, then intersect the parameter
* domain of "umap" with this set.
*/
__isl_give isl_union_map *isl_union_map_intersect_domain(
__isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
{
if (isl_union_set_is_params(uset))
return union_map_intersect_params(umap, uset);
return gen_bin_op(umap, uset, &intersect_domain_entry);
}
static int gist_domain_entry(void **entry, void *user)
{
struct isl_union_map_gen_bin_data *data = user;
uint32_t hash;
struct isl_hash_table_entry *entry2;
isl_space *dim;
isl_map *map = *entry;
int empty;
dim = isl_map_get_space(map);
dim = isl_space_domain(dim);
hash = isl_space_get_hash(dim);
entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
hash, &has_dim, dim, 0);
isl_space_free(dim);
if (!entry2)
return 0;
map = isl_map_copy(map);
map = isl_map_gist_domain(map, isl_set_copy(entry2->data));
empty = isl_map_is_empty(map);
if (empty < 0) {
isl_map_free(map);
return -1;
}
data->res = isl_union_map_add_map(data->res, map);
return 0;
}
/* Compute the gist of "umap" with respect to the domain "uset".
* If "uset" is a parameters domain, then compute the gist
* with respect to this parameter domain.
*/
__isl_give isl_union_map *isl_union_map_gist_domain(
__isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
{
if (isl_union_set_is_params(uset))
return union_map_gist_params(umap, uset);
return gen_bin_op(umap, uset, &gist_domain_entry);
}
static int gist_range_entry(void **entry, void *user)
{
struct isl_union_map_gen_bin_data *data = user;
uint32_t hash;
struct isl_hash_table_entry *entry2;
isl_space *space;
isl_map *map = *entry;
int empty;
space = isl_map_get_space(map);
space = isl_space_range(space);
hash = isl_space_get_hash(space);
entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
hash, &has_dim, space, 0);
isl_space_free(space);
if (!entry2)
return 0;
map = isl_map_copy(map);
map = isl_map_gist_range(map, isl_set_copy(entry2->data));
empty = isl_map_is_empty(map);
if (empty < 0) {
isl_map_free(map);
return -1;
}
data->res = isl_union_map_add_map(data->res, map);
return 0;
}
/* Compute the gist of "umap" with respect to the range "uset".
*/
__isl_give isl_union_map *isl_union_map_gist_range(
__isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
{
return gen_bin_op(umap, uset, &gist_range_entry);
}
static int intersect_range_entry(void **entry, void *user)
{
struct isl_union_map_gen_bin_data *data = user;
uint32_t hash;
struct isl_hash_table_entry *entry2;
isl_space *dim;
isl_map *map = *entry;
int empty;
dim = isl_map_get_space(map);
dim = isl_space_range(dim);
hash = isl_space_get_hash(dim);
entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
hash, &has_dim, dim, 0);
isl_space_free(dim);
if (!entry2)
return 0;
map = isl_map_copy(map);
map = isl_map_intersect_range(map, isl_set_copy(entry2->data));
empty = isl_map_is_empty(map);
if (empty < 0) {
isl_map_free(map);
return -1;
}
if (empty) {
isl_map_free(map);
return 0;
}
data->res = isl_union_map_add_map(data->res, map);
return 0;
}
__isl_give isl_union_map *isl_union_map_intersect_range(
__isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
{
return gen_bin_op(umap, uset, &intersect_range_entry);
}
struct isl_union_map_bin_data {
isl_union_map *umap2;
isl_union_map *res;
isl_map *map;
int (*fn)(void **entry, void *user);
};
static int apply_range_entry(void **entry, void *user)
{
struct isl_union_map_bin_data *data = user;
isl_map *map2 = *entry;
int empty;
if (!isl_space_tuple_match(data->map->dim, isl_dim_out,
map2->dim, isl_dim_in))
return 0;
map2 = isl_map_apply_range(isl_map_copy(data->map), isl_map_copy(map2));
empty = isl_map_is_empty(map2);
if (empty < 0) {
isl_map_free(map2);
return -1;
}
if (empty) {
isl_map_free(map2);
return 0;
}
data->res = isl_union_map_add_map(data->res, map2);
return 0;
}
static int bin_entry(void **entry, void *user)
{
struct isl_union_map_bin_data *data = user;
isl_map *map = *entry;
data->map = map;
if (isl_hash_table_foreach(data->umap2->dim->ctx, &data->umap2->table,
data->fn, data) < 0)
return -1;
return 0;
}
static __isl_give isl_union_map *bin_op(__isl_take isl_union_map *umap1,
__isl_take isl_union_map *umap2, int (*fn)(void **entry, void *user))
{
struct isl_union_map_bin_data data = { NULL, NULL, NULL, fn };
umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
if (!umap1 || !umap2)
goto error;
data.umap2 = umap2;
data.res = isl_union_map_alloc(isl_space_copy(umap1->dim),
umap1->table.n);
if (isl_hash_table_foreach(umap1->dim->ctx, &umap1->table,
&bin_entry, &data) < 0)
goto error;
isl_union_map_free(umap1);
isl_union_map_free(umap2);
return data.res;
error:
isl_union_map_free(umap1);
isl_union_map_free(umap2);
isl_union_map_free(data.res);
return NULL;
}
__isl_give isl_union_map *isl_union_map_apply_range(
__isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
{
return bin_op(umap1, umap2, &apply_range_entry);
}
__isl_give isl_union_map *isl_union_map_apply_domain(
__isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
{
umap1 = isl_union_map_reverse(umap1);
umap1 = isl_union_map_apply_range(umap1, umap2);
return isl_union_map_reverse(umap1);
}
__isl_give isl_union_set *isl_union_set_apply(
__isl_take isl_union_set *uset, __isl_take isl_union_map *umap)
{
return isl_union_map_apply_range(uset, umap);
}
static int map_lex_lt_entry(void **entry, void *user)
{
struct isl_union_map_bin_data *data = user;
isl_map *map2 = *entry;
if (!isl_space_tuple_match(data->map->dim, isl_dim_out,
map2->dim, isl_dim_out))
return 0;
map2 = isl_map_lex_lt_map(isl_map_copy(data->map), isl_map_copy(map2));
data->res = isl_union_map_add_map(data->res, map2);
return 0;
}
__isl_give isl_union_map *isl_union_map_lex_lt_union_map(
__isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
{
return bin_op(umap1, umap2, &map_lex_lt_entry);
}
static int map_lex_le_entry(void **entry, void *user)
{
struct isl_union_map_bin_data *data = user;
isl_map *map2 = *entry;
if (!isl_space_tuple_match(data->map->dim, isl_dim_out,
map2->dim, isl_dim_out))
return 0;
map2 = isl_map_lex_le_map(isl_map_copy(data->map), isl_map_copy(map2));
data->res = isl_union_map_add_map(data->res, map2);
return 0;
}
__isl_give isl_union_map *isl_union_map_lex_le_union_map(
__isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
{
return bin_op(umap1, umap2, &map_lex_le_entry);
}
static int product_entry(void **entry, void *user)
{
struct isl_union_map_bin_data *data = user;
isl_map *map2 = *entry;
map2 = isl_map_product(isl_map_copy(data->map), isl_map_copy(map2));
data->res = isl_union_map_add_map(data->res, map2);
return 0;
}
__isl_give isl_union_map *isl_union_map_product(__isl_take isl_union_map *umap1,
__isl_take isl_union_map *umap2)
{
return bin_op(umap1, umap2, &product_entry);
}
static int set_product_entry(void **entry, void *user)
{
struct isl_union_map_bin_data *data = user;
isl_set *set2 = *entry;
set2 = isl_set_product(isl_set_copy(data->map), isl_set_copy(set2));
data->res = isl_union_set_add_set(data->res, set2);
return 0;
}
__isl_give isl_union_set *isl_union_set_product(__isl_take isl_union_set *uset1,
__isl_take isl_union_set *uset2)
{
return bin_op(uset1, uset2, &set_product_entry);
}
static int range_product_entry(void **entry, void *user)
{
struct isl_union_map_bin_data *data = user;
isl_map *map2 = *entry;
if (!isl_space_tuple_match(data->map->dim, isl_dim_in,
map2->dim, isl_dim_in))
return 0;
map2 = isl_map_range_product(isl_map_copy(data->map),
isl_map_copy(map2));
data->res = isl_union_map_add_map(data->res, map2);
return 0;
}
__isl_give isl_union_map *isl_union_map_range_product(
__isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
{
return bin_op(umap1, umap2, &range_product_entry);
}
static int flat_range_product_entry(void **entry, void *user)
{
struct isl_union_map_bin_data *data = user;
isl_map *map2 = *entry;
if (!isl_space_tuple_match(data->map->dim, isl_dim_in,
map2->dim, isl_dim_in))
return 0;
map2 = isl_map_flat_range_product(isl_map_copy(data->map),
isl_map_copy(map2));
data->res = isl_union_map_add_map(data->res, map2);
return 0;
}
__isl_give isl_union_map *isl_union_map_flat_range_product(
__isl_take isl_union_map *umap1, __isl_take isl_union_map *umap2)
{
return bin_op(umap1, umap2, &flat_range_product_entry);
}
static __isl_give isl_union_set *cond_un_op(__isl_take isl_union_map *umap,
int (*fn)(void **, void *))
{
isl_union_set *res;
if (!umap)
return NULL;
res = isl_union_map_alloc(isl_space_copy(umap->dim), umap->table.n);
if (isl_hash_table_foreach(umap->dim->ctx, &umap->table, fn, &res) < 0)
goto error;
isl_union_map_free(umap);
return res;
error:
isl_union_map_free(umap);
isl_union_set_free(res);
return NULL;
}
static int from_range_entry(void **entry, void *user)
{
isl_map *set = *entry;
isl_union_set **res = user;
*res = isl_union_map_add_map(*res,
isl_map_from_range(isl_set_copy(set)));
return 0;
}
__isl_give isl_union_map *isl_union_map_from_range(
__isl_take isl_union_set *uset)
{
return cond_un_op(uset, &from_range_entry);
}
__isl_give isl_union_map *isl_union_map_from_domain(
__isl_take isl_union_set *uset)
{
return isl_union_map_reverse(isl_union_map_from_range(uset));
}
__isl_give isl_union_map *isl_union_map_from_domain_and_range(
__isl_take isl_union_set *domain, __isl_take isl_union_set *range)
{
return isl_union_map_apply_range(isl_union_map_from_domain(domain),
isl_union_map_from_range(range));
}
static __isl_give isl_union_map *un_op(__isl_take isl_union_map *umap,
int (*fn)(void **, void *))
{
umap = isl_union_map_cow(umap);
if (!umap)
return NULL;
if (isl_hash_table_foreach(umap->dim->ctx, &umap->table, fn, NULL) < 0)
goto error;
return umap;
error:
isl_union_map_free(umap);
return NULL;
}
static int affine_entry(void **entry, void *user)
{
isl_map **map = (isl_map **)entry;
*map = isl_map_from_basic_map(isl_map_affine_hull(*map));
return *map ? 0 : -1;
}
__isl_give isl_union_map *isl_union_map_affine_hull(
__isl_take isl_union_map *umap)
{
return un_op(umap, &affine_entry);
}
__isl_give isl_union_set *isl_union_set_affine_hull(
__isl_take isl_union_set *uset)
{
return isl_union_map_affine_hull(uset);
}
static int polyhedral_entry(void **entry, void *user)
{
isl_map **map = (isl_map **)entry;
*map = isl_map_from_basic_map(isl_map_polyhedral_hull(*map));
return *map ? 0 : -1;
}
__isl_give isl_union_map *isl_union_map_polyhedral_hull(
__isl_take isl_union_map *umap)
{
return un_op(umap, &polyhedral_entry);
}
__isl_give isl_union_set *isl_union_set_polyhedral_hull(
__isl_take isl_union_set *uset)
{
return isl_union_map_polyhedral_hull(uset);
}
static int simple_entry(void **entry, void *user)
{
isl_map **map = (isl_map **)entry;
*map = isl_map_from_basic_map(isl_map_simple_hull(*map));
return *map ? 0 : -1;
}
__isl_give isl_union_map *isl_union_map_simple_hull(
__isl_take isl_union_map *umap)
{
return un_op(umap, &simple_entry);
}
__isl_give isl_union_set *isl_union_set_simple_hull(
__isl_take isl_union_set *uset)
{
return isl_union_map_simple_hull(uset);
}
static int inplace_entry(void **entry, void *user)
{
__isl_give isl_map *(*fn)(__isl_take isl_map *);
isl_map **map = (isl_map **)entry;
isl_map *copy;
fn = *(__isl_give isl_map *(**)(__isl_take isl_map *)) user;
copy = fn(isl_map_copy(*map));
if (!copy)
return -1;
isl_map_free(*map);
*map = copy;
return 0;
}
static __isl_give isl_union_map *inplace(__isl_take isl_union_map *umap,
__isl_give isl_map *(*fn)(__isl_take isl_map *))
{
if (!umap)
return NULL;
if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
&inplace_entry, &fn) < 0)
goto error;
return umap;
error:
isl_union_map_free(umap);
return NULL;
}
__isl_give isl_union_map *isl_union_map_coalesce(
__isl_take isl_union_map *umap)
{
return inplace(umap, &isl_map_coalesce);
}
__isl_give isl_union_set *isl_union_set_coalesce(
__isl_take isl_union_set *uset)
{
return isl_union_map_coalesce(uset);
}
__isl_give isl_union_map *isl_union_map_detect_equalities(
__isl_take isl_union_map *umap)
{
return inplace(umap, &isl_map_detect_equalities);
}
__isl_give isl_union_set *isl_union_set_detect_equalities(
__isl_take isl_union_set *uset)
{
return isl_union_map_detect_equalities(uset);
}
__isl_give isl_union_map *isl_union_map_compute_divs(
__isl_take isl_union_map *umap)
{
return inplace(umap, &isl_map_compute_divs);
}
__isl_give isl_union_set *isl_union_set_compute_divs(
__isl_take isl_union_set *uset)
{
return isl_union_map_compute_divs(uset);
}
static int lexmin_entry(void **entry, void *user)
{
isl_map **map = (isl_map **)entry;
*map = isl_map_lexmin(*map);
return *map ? 0 : -1;
}
__isl_give isl_union_map *isl_union_map_lexmin(
__isl_take isl_union_map *umap)
{
return un_op(umap, &lexmin_entry);
}
__isl_give isl_union_set *isl_union_set_lexmin(
__isl_take isl_union_set *uset)
{
return isl_union_map_lexmin(uset);
}
static int lexmax_entry(void **entry, void *user)
{
isl_map **map = (isl_map **)entry;
*map = isl_map_lexmax(*map);
return *map ? 0 : -1;
}
__isl_give isl_union_map *isl_union_map_lexmax(
__isl_take isl_union_map *umap)
{
return un_op(umap, &lexmax_entry);
}
__isl_give isl_union_set *isl_union_set_lexmax(
__isl_take isl_union_set *uset)
{
return isl_union_map_lexmax(uset);
}
static int universe_entry(void **entry, void *user)
{
isl_map *map = *entry;
isl_union_map **res = user;
map = isl_map_universe(isl_map_get_space(map));
*res = isl_union_map_add_map(*res, map);
return 0;
}
__isl_give isl_union_map *isl_union_map_universe(__isl_take isl_union_map *umap)
{
return cond_un_op(umap, &universe_entry);
}
__isl_give isl_union_set *isl_union_set_universe(__isl_take isl_union_set *uset)
{
return isl_union_map_universe(uset);
}
static int reverse_entry(void **entry, void *user)
{
isl_map *map = *entry;
isl_union_map **res = user;
*res = isl_union_map_add_map(*res, isl_map_reverse(isl_map_copy(map)));
return 0;
}
__isl_give isl_union_map *isl_union_map_reverse(__isl_take isl_union_map *umap)
{
return cond_un_op(umap, &reverse_entry);
}
static int params_entry(void **entry, void *user)
{
isl_map *map = *entry;
isl_union_set **res = user;
*res = isl_union_set_add_set(*res, isl_map_params(isl_map_copy(map)));
return 0;
}
/* Compute the parameter domain of the given union map.
*/
__isl_give isl_set *isl_union_map_params(__isl_take isl_union_map *umap)
{
int empty;
empty = isl_union_map_is_empty(umap);
if (empty < 0)
return isl_union_map_free(umap);
if (empty)
return isl_set_empty(isl_union_map_get_space(umap));
return isl_set_from_union_set(cond_un_op(umap, ¶ms_entry));
}
/* Compute the parameter domain of the given union set.
*/
__isl_give isl_set *isl_union_set_params(__isl_take isl_union_set *uset)
{
return isl_union_map_params(uset);
}
static int domain_entry(void **entry, void *user)
{
isl_map *map = *entry;
isl_union_set **res = user;
*res = isl_union_set_add_set(*res, isl_map_domain(isl_map_copy(map)));
return 0;
}
__isl_give isl_union_set *isl_union_map_domain(__isl_take isl_union_map *umap)
{
return cond_un_op(umap, &domain_entry);
}
static int range_entry(void **entry, void *user)
{
isl_map *map = *entry;
isl_union_set **res = user;
*res = isl_union_set_add_set(*res, isl_map_range(isl_map_copy(map)));
return 0;
}
__isl_give isl_union_set *isl_union_map_range(__isl_take isl_union_map *umap)
{
return cond_un_op(umap, &range_entry);
}
static int domain_map_entry(void **entry, void *user)
{
isl_map *map = *entry;
isl_union_set **res = user;
*res = isl_union_map_add_map(*res,
isl_map_domain_map(isl_map_copy(map)));
return 0;
}
__isl_give isl_union_map *isl_union_map_domain_map(
__isl_take isl_union_map *umap)
{
return cond_un_op(umap, &domain_map_entry);
}
static int range_map_entry(void **entry, void *user)
{
isl_map *map = *entry;
isl_union_set **res = user;
*res = isl_union_map_add_map(*res,
isl_map_range_map(isl_map_copy(map)));
return 0;
}
__isl_give isl_union_map *isl_union_map_range_map(
__isl_take isl_union_map *umap)
{
return cond_un_op(umap, &range_map_entry);
}
static int deltas_entry(void **entry, void *user)
{
isl_map *map = *entry;
isl_union_set **res = user;
if (!isl_space_tuple_match(map->dim, isl_dim_in, map->dim, isl_dim_out))
return 0;
*res = isl_union_set_add_set(*res, isl_map_deltas(isl_map_copy(map)));
return 0;
}
__isl_give isl_union_set *isl_union_map_deltas(__isl_take isl_union_map *umap)
{
return cond_un_op(umap, &deltas_entry);
}
static int deltas_map_entry(void **entry, void *user)
{
isl_map *map = *entry;
isl_union_map **res = user;
if (!isl_space_tuple_match(map->dim, isl_dim_in, map->dim, isl_dim_out))
return 0;
*res = isl_union_map_add_map(*res,
isl_map_deltas_map(isl_map_copy(map)));
return 0;
}
__isl_give isl_union_map *isl_union_map_deltas_map(
__isl_take isl_union_map *umap)
{
return cond_un_op(umap, &deltas_map_entry);
}
static int identity_entry(void **entry, void *user)
{
isl_set *set = *entry;
isl_union_map **res = user;
*res = isl_union_map_add_map(*res, isl_set_identity(isl_set_copy(set)));
return 0;
}
__isl_give isl_union_map *isl_union_set_identity(__isl_take isl_union_set *uset)
{
return cond_un_op(uset, &identity_entry);
}
static int unwrap_entry(void **entry, void *user)
{
isl_set *set = *entry;
isl_union_set **res = user;
if (!isl_set_is_wrapping(set))
return 0;
*res = isl_union_map_add_map(*res, isl_set_unwrap(isl_set_copy(set)));
return 0;
}
__isl_give isl_union_map *isl_union_set_unwrap(__isl_take isl_union_set *uset)
{
return cond_un_op(uset, &unwrap_entry);
}
static int wrap_entry(void **entry, void *user)
{
isl_map *map = *entry;
isl_union_set **res = user;
*res = isl_union_set_add_set(*res, isl_map_wrap(isl_map_copy(map)));
return 0;
}
__isl_give isl_union_set *isl_union_map_wrap(__isl_take isl_union_map *umap)
{
return cond_un_op(umap, &wrap_entry);
}
struct isl_union_map_is_subset_data {
isl_union_map *umap2;
int is_subset;
};
static int is_subset_entry(void **entry, void *user)
{
struct isl_union_map_is_subset_data *data = user;
uint32_t hash;
struct isl_hash_table_entry *entry2;
isl_map *map = *entry;
hash = isl_space_get_hash(map->dim);
entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
hash, &has_dim, map->dim, 0);
if (!entry2) {
int empty = isl_map_is_empty(map);
if (empty < 0)
return -1;
if (empty)
return 0;
data->is_subset = 0;
return -1;
}
data->is_subset = isl_map_is_subset(map, entry2->data);
if (data->is_subset < 0 || !data->is_subset)
return -1;
return 0;
}
int isl_union_map_is_subset(__isl_keep isl_union_map *umap1,
__isl_keep isl_union_map *umap2)
{
struct isl_union_map_is_subset_data data = { NULL, 1 };
umap1 = isl_union_map_copy(umap1);
umap2 = isl_union_map_copy(umap2);
umap1 = isl_union_map_align_params(umap1, isl_union_map_get_space(umap2));
umap2 = isl_union_map_align_params(umap2, isl_union_map_get_space(umap1));
if (!umap1 || !umap2)
goto error;
data.umap2 = umap2;
if (isl_hash_table_foreach(umap1->dim->ctx, &umap1->table,
&is_subset_entry, &data) < 0 &&
data.is_subset)
goto error;
isl_union_map_free(umap1);
isl_union_map_free(umap2);
return data.is_subset;
error:
isl_union_map_free(umap1);
isl_union_map_free(umap2);
return -1;
}
int isl_union_set_is_subset(__isl_keep isl_union_set *uset1,
__isl_keep isl_union_set *uset2)
{
return isl_union_map_is_subset(uset1, uset2);
}
int isl_union_map_is_equal(__isl_keep isl_union_map *umap1,
__isl_keep isl_union_map *umap2)
{
int is_subset;
if (!umap1 || !umap2)
return -1;
is_subset = isl_union_map_is_subset(umap1, umap2);
if (is_subset != 1)
return is_subset;
is_subset = isl_union_map_is_subset(umap2, umap1);
return is_subset;
}
int isl_union_set_is_equal(__isl_keep isl_union_set *uset1,
__isl_keep isl_union_set *uset2)
{
return isl_union_map_is_equal(uset1, uset2);
}
int isl_union_map_is_strict_subset(__isl_keep isl_union_map *umap1,
__isl_keep isl_union_map *umap2)
{
int is_subset;
if (!umap1 || !umap2)
return -1;
is_subset = isl_union_map_is_subset(umap1, umap2);
if (is_subset != 1)
return is_subset;
is_subset = isl_union_map_is_subset(umap2, umap1);
if (is_subset == -1)
return is_subset;
return !is_subset;
}
int isl_union_set_is_strict_subset(__isl_keep isl_union_set *uset1,
__isl_keep isl_union_set *uset2)
{
return isl_union_map_is_strict_subset(uset1, uset2);
}
static int sample_entry(void **entry, void *user)
{
isl_basic_map **sample = (isl_basic_map **)user;
isl_map *map = *entry;
*sample = isl_map_sample(isl_map_copy(map));
if (!*sample)
return -1;
if (!isl_basic_map_plain_is_empty(*sample))
return -1;
return 0;
}
__isl_give isl_basic_map *isl_union_map_sample(__isl_take isl_union_map *umap)
{
isl_basic_map *sample = NULL;
if (!umap)
return NULL;
if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
&sample_entry, &sample) < 0 &&
!sample)
goto error;
if (!sample)
sample = isl_basic_map_empty(isl_union_map_get_space(umap));
isl_union_map_free(umap);
return sample;
error:
isl_union_map_free(umap);
return NULL;
}
__isl_give isl_basic_set *isl_union_set_sample(__isl_take isl_union_set *uset)
{
return (isl_basic_set *)isl_union_map_sample(uset);
}
struct isl_forall_data {
int res;
int (*fn)(__isl_keep isl_map *map);
};
static int forall_entry(void **entry, void *user)
{
struct isl_forall_data *data = user;
isl_map *map = *entry;
data->res = data->fn(map);
if (data->res < 0)
return -1;
if (!data->res)
return -1;
return 0;
}
static int union_map_forall(__isl_keep isl_union_map *umap,
int (*fn)(__isl_keep isl_map *map))
{
struct isl_forall_data data = { 1, fn };
if (!umap)
return -1;
if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
&forall_entry, &data) < 0 && data.res)
return -1;
return data.res;
}
struct isl_forall_user_data {
int res;
int (*fn)(__isl_keep isl_map *map, void *user);
void *user;
};
static int forall_user_entry(void **entry, void *user)
{
struct isl_forall_user_data *data = user;
isl_map *map = *entry;
data->res = data->fn(map, data->user);
if (data->res < 0)
return -1;
if (!data->res)
return -1;
return 0;
}
/* Check if fn(map, user) returns true for all maps "map" in umap.
*/
static int union_map_forall_user(__isl_keep isl_union_map *umap,
int (*fn)(__isl_keep isl_map *map, void *user), void *user)
{
struct isl_forall_user_data data = { 1, fn, user };
if (!umap)
return -1;
if (isl_hash_table_foreach(umap->dim->ctx, &umap->table,
&forall_user_entry, &data) < 0 && data.res)
return -1;
return data.res;
}
int isl_union_map_is_empty(__isl_keep isl_union_map *umap)
{
return union_map_forall(umap, &isl_map_is_empty);
}
int isl_union_set_is_empty(__isl_keep isl_union_set *uset)
{
return isl_union_map_is_empty(uset);
}
static int is_subset_of_identity(__isl_keep isl_map *map)
{
int is_subset;
isl_space *dim;
isl_map *id;
if (!map)
return -1;
if (!isl_space_tuple_match(map->dim, isl_dim_in, map->dim, isl_dim_out))
return 0;
dim = isl_map_get_space(map);
id = isl_map_identity(dim);
is_subset = isl_map_is_subset(map, id);
isl_map_free(id);
return is_subset;
}
/* Check if the given map is single-valued.
* We simply compute
*
* M \circ M^-1
*
* and check if the result is a subset of the identity mapping.
*/
int isl_union_map_is_single_valued(__isl_keep isl_union_map *umap)
{
isl_union_map *test;
int sv;
if (isl_union_map_n_map(umap) == 1) {
isl_map *map;
umap = isl_union_map_copy(umap);
map = isl_map_from_union_map(umap);
sv = isl_map_is_single_valued(map);
isl_map_free(map);
return sv;
}
test = isl_union_map_reverse(isl_union_map_copy(umap));
test = isl_union_map_apply_range(test, isl_union_map_copy(umap));
sv = union_map_forall(test, &is_subset_of_identity);
isl_union_map_free(test);
return sv;
}
int isl_union_map_is_injective(__isl_keep isl_union_map *umap)
{
int in;
umap = isl_union_map_copy(umap);
umap = isl_union_map_reverse(umap);
in = isl_union_map_is_single_valued(umap);
isl_union_map_free(umap);
return in;
}
/* Represents a map that has a fixed value (v) for one of its
* range dimensions.
* The map in this structure is not reference counted, so it
* is only valid while the isl_union_map from which it was
* obtained is still alive.
*/
struct isl_fixed_map {
isl_int v;
isl_map *map;
};
static struct isl_fixed_map *alloc_isl_fixed_map_array(isl_ctx *ctx,
int n)
{
int i;
struct isl_fixed_map *v;
v = isl_calloc_array(ctx, struct isl_fixed_map, n);
if (!v)
return NULL;
for (i = 0; i < n; ++i)
isl_int_init(v[i].v);
return v;
}
static void free_isl_fixed_map_array(struct isl_fixed_map *v, int n)
{
int i;
if (!v)
return;
for (i = 0; i < n; ++i)
isl_int_clear(v[i].v);
free(v);
}
/* Compare the "v" field of two isl_fixed_map structs.
*/
static int qsort_fixed_map_cmp(const void *p1, const void *p2)
{
const struct isl_fixed_map *e1 = (const struct isl_fixed_map *) p1;
const struct isl_fixed_map *e2 = (const struct isl_fixed_map *) p2;
return isl_int_cmp(e1->v, e2->v);
}
/* Internal data structure used while checking whether all maps
* in a union_map have a fixed value for a given output dimension.
* v is the list of maps, with the fixed value for the dimension
* n is the number of maps considered so far
* pos is the output dimension under investigation
*/
struct isl_fixed_dim_data {
struct isl_fixed_map *v;
int n;
int pos;
};
static int fixed_at_pos(__isl_keep isl_map *map, void *user)
{
struct isl_fixed_dim_data *data = user;
data->v[data->n].map = map;
return isl_map_plain_is_fixed(map, isl_dim_out, data->pos,
&data->v[data->n++].v);
}
static int plain_injective_on_range(__isl_take isl_union_map *umap,
int first, int n_range);
/* Given a list of the maps, with their fixed values at output dimension "pos",
* check whether the ranges of the maps form an obvious partition.
*
* We first sort the maps according to their fixed values.
* If all maps have a different value, then we know the ranges form
* a partition.
* Otherwise, we collect the maps with the same fixed value and
* check whether each such collection is obviously injective
* based on later dimensions.
*/
static int separates(struct isl_fixed_map *v, int n,
__isl_take isl_space *dim, int pos, int n_range)
{
int i;
if (!v)
goto error;
qsort(v, n, sizeof(*v), &qsort_fixed_map_cmp);
for (i = 0; i + 1 < n; ++i) {
int j, k;
isl_union_map *part;
int injective;
for (j = i + 1; j < n; ++j)
if (isl_int_ne(v[i].v, v[j].v))
break;
if (j == i + 1)
continue;
part = isl_union_map_alloc(isl_space_copy(dim), j - i);
for (k = i; k < j; ++k)
part = isl_union_map_add_map(part,
isl_map_copy(v[k].map));
injective = plain_injective_on_range(part, pos + 1, n_range);
if (injective < 0)
goto error;
if (!injective)
break;
i = j - 1;
}
isl_space_free(dim);
free_isl_fixed_map_array(v, n);
return i + 1 >= n;
error:
isl_space_free(dim);
free_isl_fixed_map_array(v, n);
return -1;
}
/* Check whether the maps in umap have obviously distinct ranges.
* In particular, check for an output dimension in the range
* [first,n_range) for which all maps have a fixed value
* and then check if these values, possibly along with fixed values
* at later dimensions, entail distinct ranges.
*/
static int plain_injective_on_range(__isl_take isl_union_map *umap,
int first, int n_range)
{
isl_ctx *ctx;
int n;
struct isl_fixed_dim_data data = { NULL };
ctx = isl_union_map_get_ctx(umap);
if (!umap)
goto error;
n = isl_union_map_n_map(umap);
if (n <= 1) {
isl_union_map_free(umap);
return 1;
}
if (first >= n_range) {
isl_union_map_free(umap);
return 0;
}
data.v = alloc_isl_fixed_map_array(ctx, n);
if (!data.v)
goto error;
for (data.pos = first; data.pos < n_range; ++data.pos) {
int fixed;
int injective;
isl_space *dim;
data.n = 0;
fixed = union_map_forall_user(umap, &fixed_at_pos, &data);
if (fixed < 0)
goto error;
if (!fixed)
continue;
dim = isl_union_map_get_space(umap);
injective = separates(data.v, n, dim, data.pos, n_range);
isl_union_map_free(umap);
return injective;
}
free_isl_fixed_map_array(data.v, n);
isl_union_map_free(umap);
return 0;
error:
free_isl_fixed_map_array(data.v, n);
isl_union_map_free(umap);
return -1;
}
/* Check whether the maps in umap that map to subsets of "ran"
* have obviously distinct ranges.
*/
static int plain_injective_on_range_wrap(__isl_keep isl_set *ran, void *user)
{
isl_union_map *umap = user;
umap = isl_union_map_copy(umap);
umap = isl_union_map_intersect_range(umap,
isl_union_set_from_set(isl_set_copy(ran)));
return plain_injective_on_range(umap, 0, isl_set_dim(ran, isl_dim_set));
}
/* Check if the given union_map is obviously injective.
*
* In particular, we first check if all individual maps are obviously
* injective and then check if all the ranges of these maps are
* obviously disjoint.
*/
int isl_union_map_plain_is_injective(__isl_keep isl_union_map *umap)
{
int in;
isl_union_map *univ;
isl_union_set *ran;
in = union_map_forall(umap, &isl_map_plain_is_injective);
if (in < 0)
return -1;
if (!in)
return 0;
univ = isl_union_map_universe(isl_union_map_copy(umap));
ran = isl_union_map_range(univ);
in = union_map_forall_user(ran, &plain_injective_on_range_wrap, umap);
isl_union_set_free(ran);
return in;
}
int isl_union_map_is_bijective(__isl_keep isl_union_map *umap)
{
int sv;
sv = isl_union_map_is_single_valued(umap);
if (sv < 0 || !sv)
return sv;
return isl_union_map_is_injective(umap);
}
static int zip_entry(void **entry, void *user)
{
isl_map *map = *entry;
isl_union_map **res = user;
if (!isl_map_can_zip(map))
return 0;
*res = isl_union_map_add_map(*res, isl_map_zip(isl_map_copy(map)));
return 0;
}
__isl_give isl_union_map *isl_union_map_zip(__isl_take isl_union_map *umap)
{
return cond_un_op(umap, &zip_entry);
}
static int curry_entry(void **entry, void *user)
{
isl_map *map = *entry;
isl_union_map **res = user;
if (!isl_map_can_curry(map))
return 0;
*res = isl_union_map_add_map(*res, isl_map_curry(isl_map_copy(map)));
return 0;
}
/* Given a union map, take the maps of the form (A -> B) -> C and
* return the union of the corresponding maps A -> (B -> C).
*/
__isl_give isl_union_map *isl_union_map_curry(__isl_take isl_union_map *umap)
{
return cond_un_op(umap, &curry_entry);
}
static int lift_entry(void **entry, void *user)
{
isl_set *set = *entry;
isl_union_set **res = user;
*res = isl_union_set_add_set(*res, isl_set_lift(isl_set_copy(set)));
return 0;
}
__isl_give isl_union_set *isl_union_set_lift(__isl_take isl_union_set *uset)
{
return cond_un_op(uset, &lift_entry);
}
static int coefficients_entry(void **entry, void *user)
{
isl_set *set = *entry;
isl_union_set **res = user;
set = isl_set_copy(set);
set = isl_set_from_basic_set(isl_set_coefficients(set));
*res = isl_union_set_add_set(*res, set);
return 0;
}
__isl_give isl_union_set *isl_union_set_coefficients(
__isl_take isl_union_set *uset)
{
isl_ctx *ctx;
isl_space *dim;
isl_union_set *res;
if (!uset)
return NULL;
ctx = isl_union_set_get_ctx(uset);
dim = isl_space_set_alloc(ctx, 0, 0);
res = isl_union_map_alloc(dim, uset->table.n);
if (isl_hash_table_foreach(uset->dim->ctx, &uset->table,
&coefficients_entry, &res) < 0)
goto error;
isl_union_set_free(uset);
return res;
error:
isl_union_set_free(uset);
isl_union_set_free(res);
return NULL;
}
static int solutions_entry(void **entry, void *user)
{
isl_set *set = *entry;
isl_union_set **res = user;
set = isl_set_copy(set);
set = isl_set_from_basic_set(isl_set_solutions(set));
if (!*res)
*res = isl_union_set_from_set(set);
else
*res = isl_union_set_add_set(*res, set);
if (!*res)
return -1;
return 0;
}
__isl_give isl_union_set *isl_union_set_solutions(
__isl_take isl_union_set *uset)
{
isl_union_set *res = NULL;
if (!uset)
return NULL;
if (uset->table.n == 0) {
res = isl_union_set_empty(isl_union_set_get_space(uset));
isl_union_set_free(uset);
return res;
}
if (isl_hash_table_foreach(uset->dim->ctx, &uset->table,
&solutions_entry, &res) < 0)
goto error;
isl_union_set_free(uset);
return res;
error:
isl_union_set_free(uset);
isl_union_set_free(res);
return NULL;
}