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/********************* */
/*! \file bv_inverter_utils.h
** \verbatim
** Top contributors (to current version):
** Aina Niemetz, Mathias Preiner
** This file is part of the CVC4 project.
** Copyright (c) 2009-2020 by the authors listed in the file AUTHORS
** in the top-level source directory) and their institutional affiliations.
** All rights reserved. See the file COPYING in the top-level source
** directory for licensing information.\endverbatim
**
** \brief inverse rules for bit-vector operators
**/
#include "cvc4_private.h"
#ifndef CVC4__BV_INVERTER_UTILS_H
#define CVC4__BV_INVERTER_UTILS_H
#include "expr/node.h"
namespace CVC4 {
namespace theory {
namespace quantifiers {
namespace utils {
/* Get invertibility condition for BITVECTOR_ULT and BITVECTOR_UGT. */
Node getICBvUltUgt(bool pol, Kind k, Node x, Node t);
/* Get invertibility condition for BITVECTOR_SLT and BITVECTOR_SGT. */
Node getICBvSltSgt(bool pol, Kind k, Node x, Node t);
/* Get invertibility condition for BITVECTOR_MUL. */
Node getICBvMult(
bool pol, Kind litk, Kind k, unsigned idx, Node x, Node s, Node t);
/* Get invertibility condition for BITVECTOR_UREM. */
Node getICBvUrem(
bool pol, Kind litk, Kind k, unsigned idx, Node x, Node s, Node t);
/* Get invertibility condition for BITVECTOR_UDIV. */
Node getICBvUdiv(
bool pol, Kind litk, Kind k, unsigned idx, Node x, Node s, Node t);
/* Get invertibility condition for BITVECTOR_AND and BITVECTOR_OR. */
Node getICBvAndOr(
bool pol, Kind litk, Kind k, unsigned idx, Node x, Node s, Node t);
/* Get invertibility condition for BITVECTOR_LSHR. */
Node getICBvLshr(
bool pol, Kind litk, Kind k, unsigned idx, Node x, Node s, Node t);
/* Get invertibility condition for BITVECTOR_ASHR. */
Node getICBvAshr(
bool pol, Kind litk, Kind k, unsigned idx, Node x, Node s, Node t);
/* Get invertibility condition for BITVECTOR_SHL. */
Node getICBvShl(
bool pol, Kind litk, Kind k, unsigned idx, Node x, Node s, Node t);
/* Get invertibility condition for BITVECTOR_CONCAT. */
Node getICBvConcat(
bool pol, Kind litk, unsigned idx, Node x, Node sv_t, Node t);
/* Get invertibility condition for BITVECTOR_SEXT. */
Node getICBvSext(bool pol, Kind litk, unsigned idx, Node x, Node sv_t, Node t);
} // namespace utils
} // namespace quantifiers
} // namespace theory
} // namespace CVC4
#endif
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