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/*
* Copyright 2017 Sven Verdoolaege
*
* Use of this software is governed by the MIT license
*
* Written by Sven Verdoolaege.
*/
/* Initialize the explicit domain of "mpa".
*
* The explicit domain is initialized to a universe set
* in the domain space.
*/
static __isl_give isl_multi_pw_aff *isl_multi_pw_aff_init_explicit_domain(
__isl_take isl_multi_pw_aff *mpa)
{
if (isl_multi_pw_aff_check_has_explicit_domain(mpa) < 0)
return isl_multi_pw_aff_free(mpa);
mpa->u.dom = isl_set_universe(isl_multi_pw_aff_get_domain_space(mpa));
if (!mpa->u.dom)
return isl_multi_pw_aff_free(mpa);
return mpa;
}
/* Intersect the domain of "dst" with the domain product
* of the explicit domains of "src1" and "src2".
* This function is only called if at least one of "src1" or "src2"
* has an explicit domain.
*/
static __isl_give isl_multi_pw_aff *
isl_multi_pw_aff_intersect_explicit_domain_product(
__isl_take isl_multi_pw_aff *dst, __isl_keep isl_multi_pw_aff *src1,
__isl_keep isl_multi_pw_aff *src2)
{
isl_space *space;
isl_set *dom;
isl_map *map;
if (!src1 || !src2)
return FN(isl_multi_pw_aff,free)(dst);
space = isl_multi_pw_aff_get_domain_space(dst);
dom = isl_set_universe(space);
map = isl_set_unwrap(dom);
if (isl_multi_pw_aff_has_explicit_domain(src1)) {
dom = isl_set_copy(src1->u.dom);
map = isl_map_intersect_domain(map, dom);
}
if (isl_multi_pw_aff_has_explicit_domain(src2)) {
dom = isl_set_copy(src2->u.dom);
map = isl_map_intersect_range(map, dom);
}
dom = isl_map_wrap(map);
dst = isl_multi_pw_aff_intersect_domain(dst, dom);
return dst;
}
/* Check whether the explicit domain of "mpa" has non-zero coefficients
* for any dimension in the given range or if any of these dimensions appear
* with non-zero coefficients in any of the integer divisions involved.
*/
isl_bool isl_multi_pw_aff_involves_explicit_domain_dims(
__isl_keep isl_multi_pw_aff *mpa,
enum isl_dim_type type, unsigned pos, unsigned n)
{
if (isl_multi_pw_aff_check_has_explicit_domain(mpa) < 0)
return isl_bool_error;
if (type == isl_dim_in)
type = isl_dim_set;
return isl_set_involves_dims(mpa->u.dom, type, pos, n);
}
/* Insert "n" dimensions of type "type" at position "pos"
* of the explicit domain of "mpa".
*/
static __isl_give isl_multi_pw_aff *
isl_multi_pw_aff_insert_explicit_domain_dims(__isl_take isl_multi_pw_aff *mpa,
enum isl_dim_type type, unsigned pos, unsigned n)
{
if (isl_multi_pw_aff_check_has_explicit_domain(mpa) < 0)
return isl_multi_pw_aff_free(mpa);
mpa = isl_multi_pw_aff_cow(mpa);
if (!mpa)
return NULL;
if (type == isl_dim_in)
type = isl_dim_set;
mpa->u.dom = isl_set_insert_dims(mpa->u.dom, type, pos, n);
if (!mpa->u.dom)
return isl_multi_pw_aff_free(mpa);
return mpa;
}
/* Drop the "n" dimensions of type "type" starting at position "pos"
* of the explicit domain of "mpa".
*/
static __isl_give isl_multi_pw_aff *
isl_multi_pw_aff_drop_explicit_domain_dims(__isl_take isl_multi_pw_aff *mpa,
enum isl_dim_type type, unsigned pos, unsigned n)
{
if (isl_multi_pw_aff_check_has_explicit_domain(mpa) < 0)
return isl_multi_pw_aff_free(mpa);
mpa = isl_multi_pw_aff_cow(mpa);
if (!mpa)
return NULL;
if (type == isl_dim_in)
type = isl_dim_set;
mpa->u.dom = isl_set_drop(mpa->u.dom, type, pos, n);
if (!mpa->u.dom)
return isl_multi_pw_aff_free(mpa);
return mpa;
}
/* Move the "n" dimensions of "src_type" starting at "src_pos" of
* of the explicit domain of "mpa" to dimensions of "dst_type" at "dst_pos".
*/
static __isl_give isl_multi_pw_aff *isl_multi_pw_aff_move_explicit_domain_dims(
__isl_take isl_multi_pw_aff *mpa,
enum isl_dim_type dst_type, unsigned dst_pos,
enum isl_dim_type src_type, unsigned src_pos, unsigned n)
{
if (isl_multi_pw_aff_check_has_explicit_domain(mpa) < 0)
return isl_multi_pw_aff_free(mpa);
mpa = isl_multi_pw_aff_cow(mpa);
if (!mpa)
return NULL;
if (dst_type == isl_dim_in)
dst_type = isl_dim_set;
if (src_type == isl_dim_in)
src_type = isl_dim_set;
mpa->u.dom = isl_set_move_dims(mpa->u.dom, dst_type, dst_pos,
src_type, src_pos, n);
if (!mpa->u.dom)
return isl_multi_pw_aff_free(mpa);
return mpa;
}
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