Viewing file:  isl_multi_explicit_domain.c (5.58 KB) -rw-r--r--
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/*
* Copyright 2017 Sven Verdoolaege
*
* Use of this software is governed by the MIT license
*
* Written by Sven Verdoolaege.
*/
/* These versions of the explicit domain functions are used
* when the multi expression may have an explicit domain.
*/
#include <isl_multi_macro.h>
__isl_give MULTI(BASE) *FN(MULTI(BASE),cow)(__isl_take MULTI(BASE) *multi);
/* Does "multi" have an explicit domain?
*
* An explicit domain is only available if "multi" is zero-dimensional.
*/
static int FN(MULTI(BASE),has_explicit_domain)(__isl_keep MULTI(BASE) *multi)
{
return multi && multi->n == 0;
}
/* Check that "multi" has an explicit domain.
*/
static isl_stat FN(MULTI(BASE),check_has_explicit_domain)(
__isl_keep MULTI(BASE) *multi)
{
if (!multi)
return isl_stat_error;
if (!FN(MULTI(BASE),has_explicit_domain)(multi))
isl_die(FN(MULTI(BASE),get_ctx)(multi), isl_error_internal,
"expression does not have an explicit domain",
return isl_stat_error);
return isl_stat_ok;
}
/* Return the explicit domain of "multi", assuming it has one.
*/
static __isl_keep DOM *FN(MULTI(BASE),peek_explicit_domain)(
__isl_keep MULTI(BASE) *multi)
{
if (FN(MULTI(BASE),check_has_explicit_domain)(multi) < 0)
return NULL;
return multi->u.dom;
}
/* Return a copy of the explicit domain of "multi", assuming it has one.
*/
static __isl_give DOM *FN(MULTI(BASE),get_explicit_domain)(
__isl_keep MULTI(BASE) *multi)
{
return FN(DOM,copy)(FN(MULTI(BASE),peek_explicit_domain)(multi));
}
/* Replace the explicit domain of "multi" by "dom", assuming it has one.
*/
static __isl_give MULTI(BASE) *FN(MULTI(BASE),set_explicit_domain)(
__isl_take MULTI(BASE) *multi, __isl_take DOM *dom)
{
if (FN(MULTI(BASE),check_has_explicit_domain)(multi) < 0)
goto error;
multi = FN(MULTI(BASE),cow)(multi);
if (!multi || !dom)
goto error;
FN(DOM,free)(multi->u.dom);
multi->u.dom = dom;
if (!multi->u.dom)
return FN(MULTI(BASE),free)(multi);
return multi;
error:
FN(MULTI(BASE),free)(multi);
FN(DOM,free)(dom);
return NULL;
}
/* Intersect the domain of "dst" with the explicit domain of "src".
*
* In the case of isl_multi_union_pw_aff objects, the explicit domain
* of "src" is allowed to have only constraints on the parameters, even
* if the domain of "dst" contains actual domain elements. In this case,
* the domain of "dst" is intersected with those parameter constraints.
*/
static __isl_give MULTI(BASE) *FN(MULTI(BASE),intersect_explicit_domain)(
__isl_take MULTI(BASE) *dst, __isl_keep MULTI(BASE) *src)
{
isl_bool is_params;
DOM *dom;
dom = FN(MULTI(BASE),peek_explicit_domain)(src);
is_params = FN(DOM,is_params)(dom);
if (is_params < 0)
return FN(MULTI(BASE),free)(dst);
dom = FN(DOM,copy)(dom);
if (!is_params) {
dst = FN(MULTI(BASE),intersect_domain)(dst, dom);
} else {
isl_set *params;
params = FN(DOM,params)(dom);
dst = FN(MULTI(BASE),intersect_params)(dst, params);
}
return dst;
}
/* Set the explicit domain of "dst" to that of "src".
*/
static __isl_give MULTI(BASE) *FN(MULTI(BASE),copy_explicit_domain)(
__isl_take MULTI(BASE) *dst, __isl_keep MULTI(BASE) *src)
{
DOM *dom;
dom = FN(MULTI(BASE),get_explicit_domain)(src);
dst = FN(MULTI(BASE),set_explicit_domain)(dst, dom);
return dst;
}
/* Align the parameters of the explicit domain of "multi" to those of "space".
*/
static __isl_give MULTI(BASE) *FN(MULTI(BASE),align_explicit_domain_params)(
__isl_take MULTI(BASE) *multi, __isl_take isl_space *space)
{
DOM *dom;
dom = FN(MULTI(BASE),get_explicit_domain)(multi);
dom = FN(DOM,align_params)(dom, space);
multi = FN(MULTI(BASE),set_explicit_domain)(multi, dom);
return multi;
}
/* Replace the space of the explicit domain of "multi" by "space",
* without modifying its dimension.
*/
static __isl_give MULTI(BASE) *FN(MULTI(BASE),reset_explicit_domain_space)(
__isl_take MULTI(BASE) *multi, __isl_take isl_space *space)
{
DOM *dom;
dom = FN(MULTI(BASE),get_explicit_domain)(multi);
dom = FN(DOM,reset_equal_dim_space)(dom, space);
multi = FN(MULTI(BASE),set_explicit_domain)(multi, dom);
return multi;
}
/* Free the explicit domain of "multi".
*/
static void FN(MULTI(BASE),free_explicit_domain)(__isl_keep MULTI(BASE) *multi)
{
if (FN(MULTI(BASE),check_has_explicit_domain)(multi) < 0)
return;
FN(DOM,free)(multi->u.dom);
}
/* Do "multi1" and "multi2" have the same explicit domain?
*/
static isl_bool FN(MULTI(BASE),equal_explicit_domain)(
__isl_keep MULTI(BASE) *multi1, __isl_keep MULTI(BASE) *multi2)
{
DOM *dom1, *dom2;
isl_bool equal;
if (FN(MULTI(BASE),check_has_explicit_domain)(multi1) < 0 ||
FN(MULTI(BASE),check_has_explicit_domain)(multi2) < 0)
return isl_bool_error;
dom1 = FN(MULTI(BASE),get_explicit_domain)(multi1);
dom2 = FN(MULTI(BASE),get_explicit_domain)(multi2);
equal = FN(DOM,is_equal)(dom1, dom2);
FN(DOM,free)(dom1);
FN(DOM,free)(dom2);
return equal;
}
static isl_stat FN(MULTI(BASE),check_explicit_domain)(
__isl_keep MULTI(BASE) *multi) __attribute__ ((unused));
/* Debugging function to check that the explicit domain of "multi"
* has the correct space.
*/
isl_stat FN(MULTI(BASE),check_explicit_domain)(__isl_keep MULTI(BASE) *multi)
{
isl_space *space1, *space2;
isl_bool equal;
if (FN(MULTI(BASE),check_has_explicit_domain)(multi) < 0)
return isl_stat_error;
space1 = isl_space_domain(isl_space_copy(multi->space));
space2 = FN(DOM,get_space)(multi->u.dom);
equal = isl_space_is_equal(space1, space2);
isl_space_free(space1);
isl_space_free(space2);
if (equal < 0)
return isl_stat_error;
if (!equal)
isl_die(FN(MULTI(BASE),get_ctx)(multi), isl_error_internal,
"check failed", return isl_stat_error);
return isl_stat_ok;
}
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