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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 "mupa".
*
* The explicit domain is initialized to a universe parameter set.
* It may later be specialized with constraints on the parameter or
* specific domain instances.
*/
static __isl_give isl_multi_union_pw_aff *
isl_multi_union_pw_aff_init_explicit_domain(
__isl_take isl_multi_union_pw_aff *mupa)
{
isl_space *space;
if (isl_multi_union_pw_aff_check_has_explicit_domain(mupa) < 0)
return isl_multi_union_pw_aff_free(mupa);
space = isl_space_params(isl_multi_union_pw_aff_get_space(mupa));
mupa->u.dom = isl_union_set_from_set(isl_set_universe(space));
if (!mupa->u.dom)
return isl_multi_union_pw_aff_free(mupa);
return mupa;
}
/* Drop the "n" dimensions of type "type" starting at position "pos"
* of the explicit domain of "mupa".
*/
static __isl_give isl_multi_union_pw_aff *
isl_multi_union_pw_aff_drop_explicit_domain_dims(
__isl_take isl_multi_union_pw_aff *mupa,
enum isl_dim_type type, unsigned pos, unsigned n)
{
if (isl_multi_union_pw_aff_check_has_explicit_domain(mupa) < 0)
return isl_multi_union_pw_aff_free(mupa);
if (type != isl_dim_param)
isl_die(isl_multi_union_pw_aff_get_ctx(mupa), isl_error_invalid,
"can only drop parameters",
return isl_multi_union_pw_aff_free(mupa));
mupa = isl_multi_union_pw_aff_cow(mupa);
if (!mupa)
return NULL;
mupa->u.dom = isl_union_set_project_out(mupa->u.dom, type, pos, n);
if (!mupa->u.dom)
return isl_multi_union_pw_aff_free(mupa);
return mupa;
}
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