llvm/polly/lib/External/isl/isl_bind_domain_templ.c

/*
 * Copyright 2018      Cerebras Systems
 *
 * Use of this software is governed by the MIT license
 *
 * Written by Sven Verdoolaege,
 * Cerebras Systems, 175 S San Antonio Rd, Los Altos, CA, USA
 */

#include <isl/space.h>

/* Merge parameter "param" into the input dimension "i" of "obj".
 *
 * First plug in the parameter for the input dimension in "obj".
 * The drop the (now defunct) input dimension and
 * move the parameter in its original position.
 * Since dimension manipulations destroy spaces, modify the space
 * separately by only dropping the parameter.
 */
static __isl_give TYPE *FN(TYPE,merge_param)(__isl_take TYPE *obj, int i,
	int param)
{ … }

/* Given a tuple of identifiers "tuple" that correspond
 * to the initial input dimensions of "obj",
 * if any of those identifiers appear as parameters
 * in "obj", then equate those parameters with the corresponding
 * input dimensions and project out the parameters.
 * The result therefore has no such parameters.
 */
static __isl_give TYPE *FN(TYPE,equate_initial_params)(__isl_take TYPE *obj,
	__isl_keep isl_multi_id *tuple)
{ … }

/* Given a tuple of identifiers "tuple" in a space that corresponds
 * to the domain of "obj", if any of those identifiers appear as parameters
 * in "obj", then equate those parameters with the corresponding
 * input dimensions and project out the parameters.
 * The result therefore has no such parameters.
 */
static __isl_give TYPE *FN(TYPE,equate_domain_params)(__isl_take TYPE *obj,
	__isl_keep isl_multi_id *tuple)
{ … }

/* Bind the domain dimensions of the function "obj" to parameters
 * with identifiers specified by "tuple", living in the same space
 * as the domain of "obj".
 *
 * If no parameters with these identifiers appear in "obj" already,
 * then the domain dimensions are simply reinterpreted as parameters.
 * Otherwise, the parameters are first equated to the corresponding
 * domain dimensions.
 */
__isl_give TYPE *FN(TYPE,bind_domain)(__isl_take TYPE *obj,
	__isl_take isl_multi_id *tuple)
{ … }

/* Given a tuple of identifiers "tuple" in a space that corresponds
 * to the domain of the wrapped relation in the domain of "obj",
 * if any of those identifiers appear as parameters
 * in "obj", then equate those parameters with the corresponding
 * input dimensions and project out the parameters.
 * The result therefore has no such parameters.
 */
static __isl_give TYPE *FN(TYPE,equate_domain_wrapped_domain_params)(
	__isl_take TYPE *obj, __isl_keep isl_multi_id *tuple)
{ … }

/* Given a function living in a space of the form [A -> B] -> C and
 * a tuple of identifiers in A, bind the domain dimensions of the relation
 * wrapped in the domain of "obj" with identifiers specified by "tuple",
 * returning a function in the space B -> C.
 *
 * If no parameters with these identifiers appear in "obj" already,
 * then the domain dimensions are simply reinterpreted as parameters.
 * Otherwise, the parameters are first equated to the corresponding
 * domain dimensions.
 */
__isl_give TYPE *FN(TYPE,bind_domain_wrapped_domain)(__isl_take TYPE *obj,
	__isl_take isl_multi_id *tuple)
{ … }