func_decl * float_decl_plugin::mk_to_float(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
if (m_bv_plugin && arity == 3 &&
is_sort_of(domain[0], m_bv_fid, BV_SORT) &&
is_sort_of(domain[1], m_bv_fid, BV_SORT) &&
is_sort_of(domain[2], m_bv_fid, BV_SORT)) {
// When the bv_decl_plugin is installed, then we know how to convert 3 bit-vectors into a float!
sort * fp = mk_float_sort(domain[2]->get_parameter(0).get_int(), domain[1]->get_parameter(0).get_int()+1);
symbol name("asFloat");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
else {
// .. Otherwise we only know how to convert rationals/reals.
if (!(num_parameters == 2 && parameters[0].is_int() && parameters[1].is_int()))
m_manager->raise_exception("expecting two integer parameters to asFloat");
if (arity != 2 && arity != 3)
m_manager->raise_exception("invalid number of arguments to asFloat operator");
if (!is_rm_sort(domain[0]) || domain[1] != m_real_sort)
m_manager->raise_exception("sort mismatch");
if (arity == 2) {
sort * fp = mk_float_sort(parameters[0].get_int(), parameters[1].get_int());
symbol name("asFloat");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
else {
if (domain[2] != m_int_sort)
m_manager->raise_exception("sort mismatch");
sort * fp = mk_float_sort(parameters[0].get_int(), parameters[1].get_int());
symbol name("asFloat");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
}
}
func_decl * float_decl_plugin::mk_fused_ma(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
if (arity != 4)
m_manager->raise_exception("invalid number of arguments to fused_ma operator");
if (!is_rm_sort(domain[0]) || domain[1] != domain[2] || domain[1] != domain[3] || !is_float_sort(domain[1]))
m_manager->raise_exception("sort mismatch");
symbol name("fusedMA");
return m_manager->mk_func_decl(name, arity, domain, domain[1], func_decl_info(m_family_id, k));
}
func_decl * float_decl_plugin::mk_fma(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
if (arity != 4)
m_manager->raise_exception("invalid number of arguments to fused_ma operator");
if (!is_rm_sort(domain[0]))
m_manager->raise_exception("sort mismatch, expected RoundingMode as first argument");
if (domain[1] != domain[2] || domain[1] != domain[3] || !is_float_sort(domain[1]))
m_manager->raise_exception("sort mismatch, expected arguments 1,2,3 of equal FloatingPoint sort");
symbol name("fp.fma");
return m_manager->mk_func_decl(name, arity, domain, domain[1], func_decl_info(m_family_id, k));
}
func_decl * fpa_decl_plugin::mk_bv2rm(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
if (arity != 1)
m_manager->raise_exception("invalid number of arguments to bv2rm");
if (!is_sort_of(domain[0], m_bv_fid, BV_SORT) || domain[0]->get_parameter(0).get_int() != 3)
m_manager->raise_exception("sort mismatch, expected argument of sort bitvector, size 3");
if (!is_rm_sort(range))
m_manager->raise_exception("sort mismatch, expected range of RoundingMode sort");
parameter ps[] = { parameter(3) };
sort * bv_srt = m_bv_plugin->mk_sort(m_bv_fid, 1, ps);
return m_manager->mk_func_decl(symbol("rm"), 1, &bv_srt, range, func_decl_info(m_family_id, k, num_parameters, parameters));
}
func_decl * float_decl_plugin::mk_to_ubv(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
if (!m_bv_plugin)
m_manager->raise_exception("to_fp_unsigned unsupported; use a logic with BV support");
if (arity != 2)
m_manager->raise_exception("invalid number of arguments to to_fp_unsigned");
if (is_rm_sort(domain[0]))
m_manager->raise_exception("sort mismatch, expected first argument of RoundingMode sort");
if (!is_sort_of(domain[1], m_bv_fid, BV_SORT))
m_manager->raise_exception("sort mismatch, expected second argument of BV sort");
sort * fp = mk_float_sort(parameters[0].get_int(), parameters[1].get_int());
symbol name("fp.t_ubv");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k));
}
func_decl * float_decl_plugin::mk_rm_unary_decl(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
if (arity != 2)
m_manager->raise_exception("invalid number of arguments to floating point operator");
if (!is_rm_sort(domain[0]) || !is_float_sort(domain[1]))
m_manager->raise_exception("sort mismatch");
symbol name;
switch (k) {
case OP_FLOAT_SQRT: name = "squareRoot"; break;
case OP_FLOAT_ROUND_TO_INTEGRAL: name = "roundToIntegral"; break;
default:
UNREACHABLE();
break;
}
return m_manager->mk_func_decl(name, arity, domain, domain[1], func_decl_info(m_family_id, k));
}
func_decl * float_decl_plugin::mk_rm_binary_decl(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
if (arity != 3)
m_manager->raise_exception("invalid number of arguments to floating point operator");
if (!is_rm_sort(domain[0]) || domain[1] != domain[2] || !is_float_sort(domain[1]))
m_manager->raise_exception("sort mismatch");
symbol name;
switch (k) {
case OP_FLOAT_ADD: name = "+"; break;
case OP_FLOAT_SUB: name = "-"; break;
case OP_FLOAT_MUL: name = "*"; break;
case OP_FLOAT_DIV: name = "/"; break;
default:
UNREACHABLE();
break;
}
return m_manager->mk_func_decl(name, arity, domain, domain[1], func_decl_info(m_family_id, k));
}
func_decl * float_decl_plugin::mk_rm_binary_decl(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
if (arity != 3)
m_manager->raise_exception("invalid number of arguments to floating point operator");
if (!is_rm_sort(domain[0]))
m_manager->raise_exception("sort mismatch, expected first argument of RoundingMode sort");
if (domain[1] != domain[2] || !is_float_sort(domain[1]))
m_manager->raise_exception("sort mismatch, expected arguments 1 and 2 of equal FloatingPoint sorts");
symbol name;
switch (k) {
case OP_FLOAT_ADD: name = "fp.add"; break;
case OP_FLOAT_SUB: name = "fp.sub"; break;
case OP_FLOAT_MUL: name = "fp.mul"; break;
case OP_FLOAT_DIV: name = "fp.div"; break;
default:
UNREACHABLE();
break;
}
return m_manager->mk_func_decl(name, arity, domain, domain[1], func_decl_info(m_family_id, k));
}
func_decl * fpa_decl_plugin::mk_bv_wrap(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
if (arity != 1)
m_manager->raise_exception("invalid number of arguments to bv_wrap");
if (!is_float_sort(domain[0]) && !is_rm_sort(domain[0]))
m_manager->raise_exception("sort mismatch, expected argument of FloatingPoint or RoundingMode sort");
if (is_float_sort(domain[0]))
{
unsigned float_sz = domain[0]->get_parameter(0).get_int() + domain[0]->get_parameter(1).get_int();
parameter ps[] = { parameter(float_sz) };
sort * bv_srt = m_bv_plugin->mk_sort(m_bv_fid, 1, ps);
return m_manager->mk_func_decl(symbol("bv_wrap"), 1, domain, bv_srt, func_decl_info(m_family_id, k, num_parameters, parameters));
}
else {
parameter ps[] = { parameter(3) };
sort * bv_srt = m_bv_plugin->mk_sort(m_bv_fid, 1, ps);
return m_manager->mk_func_decl(symbol("bv_wrap"), 1, domain, bv_srt, func_decl_info(m_family_id, k, num_parameters, parameters));
}
}
func_decl * fpa_decl_plugin::mk_to_sbv(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
SASSERT(m_bv_plugin);
if (arity != 2)
m_manager->raise_exception("invalid number of arguments to fp.to_sbv");
if (num_parameters != 1)
m_manager->raise_exception("invalid number of parameters to fp.to_sbv");
if (!parameters[0].is_int())
m_manager->raise_exception("invalid parameter type; fp.to_sbv expects an int parameter");
if (!is_rm_sort(domain[0]))
m_manager->raise_exception("sort mismatch, expected first argument of RoundingMode sort");
if (!is_sort_of(domain[1], m_family_id, FLOATING_POINT_SORT))
m_manager->raise_exception("sort mismatch, expected second argument of FloatingPoint sort");
if (parameters[0].get_int() <= 0)
m_manager->raise_exception("invalid parameter value; fp.to_sbv expects a parameter larger than 0");
symbol name("fp.to_sbv");
sort * bvs = m_bv_plugin->mk_sort(BV_SORT, 1, parameters);
return m_manager->mk_func_decl(name, arity, domain, bvs, func_decl_info(m_family_id, k, num_parameters, parameters));
}
func_decl * float_decl_plugin::mk_to_float(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
if (m_bv_plugin && arity == 3 &&
is_sort_of(domain[0], m_bv_fid, BV_SORT) &&
is_sort_of(domain[1], m_bv_fid, BV_SORT) &&
is_sort_of(domain[2], m_bv_fid, BV_SORT)) {
// 3 BVs -> 1 FP
sort * fp = mk_float_sort(domain[2]->get_parameter(0).get_int(), domain[1]->get_parameter(0).get_int()+1);
symbol name("fp");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
else if (m_bv_plugin && arity == 1 && is_sort_of(domain[0], m_bv_fid, BV_SORT)) {
// 1 BV -> 1 FP
if (num_parameters != 2)
m_manager->raise_exception("invalid number of parameters to to_fp");
if (!parameters[0].is_int() || !parameters[1].is_int())
m_manager->raise_exception("invalid parameter type to to_fp");
int ebits = parameters[0].get_int();
int sbits = parameters[1].get_int();
sort * fp = mk_float_sort(ebits, sbits);
symbol name("to_fp");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
else if (m_bv_plugin && arity == 2 &&
is_sort_of(domain[0], m_family_id, ROUNDING_MODE_SORT) &&
is_sort_of(domain[1], m_bv_fid, BV_SORT)) {
// Rounding + 1 BV -> 1 FP
if (num_parameters != 2)
m_manager->raise_exception("invalid number of parameters to to_fp");
if (!parameters[0].is_int() || !parameters[1].is_int())
m_manager->raise_exception("invalid parameter type to to_fp");
int ebits = parameters[0].get_int();
int sbits = parameters[1].get_int();
sort * fp = mk_float_sort(ebits, sbits);
symbol name("to_fp");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
else if (arity == 2 &&
is_sort_of(domain[0], m_family_id, ROUNDING_MODE_SORT) &&
is_sort_of(domain[1], m_family_id, FLOAT_SORT)) {
// Rounding + 1 FP -> 1 FP
if (num_parameters != 2)
m_manager->raise_exception("invalid number of parameters to to_fp");
if (!parameters[0].is_int() || !parameters[1].is_int())
m_manager->raise_exception("invalid parameter type to to_fp");
int ebits = parameters[0].get_int();
int sbits = parameters[1].get_int();
if (!is_rm_sort(domain[0]))
m_manager->raise_exception("sort mismatch, expected first argument of RoundingMode sort");
if (!is_sort_of(domain[1], m_family_id, FLOAT_SORT))
m_manager->raise_exception("sort mismatch, expected second argument of FloatingPoint sort");
sort * fp = mk_float_sort(ebits, sbits);
symbol name("to_fp");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
else {
// 1 Real -> 1 FP
if (!(num_parameters == 2 && parameters[0].is_int() && parameters[1].is_int()))
m_manager->raise_exception("expecting two integer parameters to to_fp");
if (arity != 2 && arity != 3)
m_manager->raise_exception("invalid number of arguments to to_fp operator");
if (arity == 3 && domain[2] != m_int_sort)
m_manager->raise_exception("sort mismatch, expected second argument of Int sort");
if (domain[1] != m_real_sort)
m_manager->raise_exception("sort mismatch, expected second argument of Real sort");
sort * fp = mk_float_sort(parameters[0].get_int(), parameters[1].get_int());
symbol name("to_fp");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
}
func_decl * fpa_decl_plugin::mk_to_fp(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
if (m_bv_plugin && arity == 3 &&
is_sort_of(domain[0], m_bv_fid, BV_SORT) &&
is_sort_of(domain[1], m_bv_fid, BV_SORT) &&
is_sort_of(domain[2], m_bv_fid, BV_SORT)) {
// 3 BVs -> 1 FP
unsigned ebits = domain[1]->get_parameter(0).get_int();
unsigned sbits = domain[2]->get_parameter(0).get_int() + 1;
parameter ps[] = { parameter(ebits), parameter(sbits) };
sort * fp = mk_float_sort(ebits, sbits);
symbol name("to_fp");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, 2, ps));
}
else if (m_bv_plugin && arity == 1 && is_sort_of(domain[0], m_bv_fid, BV_SORT)) {
// 1 BV -> 1 FP
if (num_parameters != 2)
m_manager->raise_exception("invalid number of parameters to to_fp");
if (!parameters[0].is_int() || !parameters[1].is_int())
m_manager->raise_exception("invalid parameter type to to_fp");
int ebits = parameters[0].get_int();
int sbits = parameters[1].get_int();
if (domain[0]->get_parameter(0).get_int() != (ebits + sbits))
m_manager->raise_exception("sort mismatch; invalid bit-vector size, expected bitvector of size (ebits+sbits)");
sort * fp = mk_float_sort(ebits, sbits);
symbol name("to_fp");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
else if (m_bv_plugin && arity == 2 &&
is_sort_of(domain[0], m_family_id, ROUNDING_MODE_SORT) &&
is_sort_of(domain[1], m_bv_fid, BV_SORT)) {
// RoundingMode + 1 BV -> 1 FP
if (num_parameters != 2)
m_manager->raise_exception("invalid number of parameters to to_fp");
if (!parameters[0].is_int() || !parameters[1].is_int())
m_manager->raise_exception("invalid parameter type to to_fp");
int ebits = parameters[0].get_int();
int sbits = parameters[1].get_int();
sort * fp = mk_float_sort(ebits, sbits);
symbol name("to_fp");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
else if (arity == 2 &&
is_sort_of(domain[0], m_family_id, ROUNDING_MODE_SORT) &&
is_sort_of(domain[1], m_family_id, FLOATING_POINT_SORT)) {
// Rounding + 1 FP -> 1 FP
if (num_parameters != 2)
m_manager->raise_exception("invalid number of parameters to to_fp");
if (!parameters[0].is_int() || !parameters[1].is_int())
m_manager->raise_exception("invalid parameter type to to_fp");
int ebits = parameters[0].get_int();
int sbits = parameters[1].get_int();
if (!is_rm_sort(domain[0]))
m_manager->raise_exception("sort mismatch, expected first argument of RoundingMode sort");
if (!is_sort_of(domain[1], m_family_id, FLOATING_POINT_SORT))
m_manager->raise_exception("sort mismatch, expected second argument of FloatingPoint sort");
sort * fp = mk_float_sort(ebits, sbits);
symbol name("to_fp");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
else if (arity == 3 &&
is_sort_of(domain[0], m_family_id, ROUNDING_MODE_SORT) &&
is_sort_of(domain[1], m_arith_fid, REAL_SORT) &&
is_sort_of(domain[2], m_arith_fid, INT_SORT))
{
// Rounding + 1 Real + 1 Int -> 1 FP
if (!(num_parameters == 2 && parameters[0].is_int() && parameters[1].is_int()))
m_manager->raise_exception("expecting two integer parameters to to_fp");
sort * fp = mk_float_sort(parameters[0].get_int(), parameters[1].get_int());
symbol name("to_fp");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
else if (arity == 3 &&
is_sort_of(domain[0], m_family_id, ROUNDING_MODE_SORT) &&
is_sort_of(domain[1], m_arith_fid, INT_SORT) &&
is_sort_of(domain[2], m_arith_fid, REAL_SORT))
{
// Rounding + 1 Int + 1 Real -> 1 FP
if (!(num_parameters == 2 && parameters[0].is_int() && parameters[1].is_int()))
m_manager->raise_exception("expecting two integer parameters to to_fp");
sort * fp = mk_float_sort(parameters[0].get_int(), parameters[1].get_int());
symbol name("to_fp");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
else if (arity == 1 &&
is_sort_of(domain[0], m_arith_fid, REAL_SORT))
{
// 1 Real -> 1 FP
if (!(num_parameters == 2 && parameters[0].is_int() && parameters[1].is_int()))
m_manager->raise_exception("expecting two integer parameters to to_fp");
if (domain[1] != m_real_sort)
m_manager->raise_exception("sort mismatch, expected one argument of Real sort");
sort * fp = mk_float_sort(parameters[0].get_int(), parameters[1].get_int());
symbol name("to_fp");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
else if (arity == 2 &&
is_sort_of(domain[0], m_family_id, ROUNDING_MODE_SORT) &&
is_sort_of(domain[1], m_arith_fid, REAL_SORT))
{
// Rounding + 1 Real -> 1 FP
if (!(num_parameters == 2 && parameters[0].is_int() && parameters[1].is_int()))
m_manager->raise_exception("expecting two integer parameters to to_fp");
sort * fp = mk_float_sort(parameters[0].get_int(), parameters[1].get_int());
symbol name("to_fp");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
else if (arity == 2 &&
is_sort_of(domain[0], m_family_id, ROUNDING_MODE_SORT) &&
is_sort_of(domain[1], m_arith_fid, INT_SORT)) {
// Rounding + 1 Int -> 1 FP
if (!(num_parameters == 2 && parameters[0].is_int() && parameters[1].is_int()))
m_manager->raise_exception("expecting two integer parameters to to_fp");
sort * fp = mk_float_sort(parameters[0].get_int(), parameters[1].get_int());
symbol name("to_fp");
return m_manager->mk_func_decl(name, arity, domain, fp, func_decl_info(m_family_id, k, num_parameters, parameters));
}
else {
m_manager->raise_exception("Unexpected argument combination for (_ to_fp eb sb). Supported argument combinations are: "
"((_ BitVec 1) (_ BitVec eb) (_ BitVec sb-1)), "
"(_ BitVec (eb+sb)), "
"(Real), "
"(RoundingMode (_ BitVec (eb+sb))), "
"(RoundingMode (_ FloatingPoint eb' sb')), "
"(RoundingMode Int Real), "
"(RoundingMode Real Int), "
"(RoundingMode Int), and "
"(RoundingMode Real)."
);
}
return nullptr;
}