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/* Graphite polyhedral representation.
Copyright (C) 2009, 2010 Free Software Foundation, Inc.
Contributed by Konrad Trifunovic <konrad.trifunovic@gmail.com>
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef GCC_GRAPHITE_DEPENDENCES_H
#define GCC_GRAPHITE_DEPENDENCES_H
extern bool graphite_legal_transform (scop_p);
extern bool dependency_between_pbbs_p (poly_bb_p, poly_bb_p, int);
enum poly_dependence_kind {
unknown_dependence,
no_dependence,
has_dependence
};
/* Represents a Polyhedral Data Dependence Relation. */
typedef struct poly_ddr
{
/* Source and sink data references of the dependence. */
poly_dr_p source, sink;
/* Data dependence polyhedron. */
ppl_Pointset_Powerset_C_Polyhedron_t ddp;
enum poly_dependence_kind kind;
/* True when the dependence relation is for the original scattering. */
bool original_scattering_p;
} *poly_ddr_p;
#define PDDR_SOURCE(PDDR) (PDDR->source)
#define PDDR_SINK(PDDR) (PDDR->sink)
#define PDDR_DDP(PDDR) (PDDR->ddp)
#define PDDR_KIND(PDDR) (PDDR->kind)
#define PDDR_ORIGINAL_SCATTERING_P(PDDR) (PDDR->original_scattering_p)
extern int eq_poly_ddr_p (const void *, const void *);
extern hashval_t hash_poly_ddr_p (const void *);
extern void free_poly_ddr (void *);
extern void dot_deps (scop_p);
extern void dot_deps_stmt (scop_p);
extern void print_pddr (FILE *, poly_ddr_p);
extern void debug_pddr (poly_ddr_p);
#endif
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