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FPA theory support for conversion functions

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Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>
This commit is contained in:
Christoph M. Wintersteiger 2014-12-28 19:28:48 +00:00
parent 621be0f47f
commit 05121e25d4
5 changed files with 107 additions and 19 deletions
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64
src/ast/float_decl_plugin.cpp
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@ -655,6 +655,45 @@ func_decl * float_decl_plugin::mk_internal_bv_unwrap(decl_kind k, unsigned num_p
return m_manager->mk_func_decl(symbol("bv_unwrap"), 1, domain, range, func_decl_info(m_family_id, k, num_parameters, parameters));
}
func_decl * float_decl_plugin::mk_internal_to_ubv_unspecified(
decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
if (arity != 0)
m_manager->raise_exception("invalid number of arguments to fp.to_ubv_unspecified");
if (num_parameters != 1)
m_manager->raise_exception("invalid number of parameters to fp.to_ubv_unspecified; expecting 1");
if (!parameters[0].is_int())
m_manager->raise_exception("invalid parameters type provided to fp.to_ubv_unspecified; expecting an integer");
sort * bv_srt = m_bv_plugin->mk_sort(m_bv_fid, 1, parameters);
return m_manager->mk_func_decl(symbol("fp.to_ubv_unspecified"), 0, domain, bv_srt, func_decl_info(m_family_id, k, num_parameters, parameters));
}
func_decl * float_decl_plugin::mk_internal_to_sbv_unspecified(
decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
if (arity != 0)
m_manager->raise_exception("invalid number of arguments to internal_to_sbv_unspecified");
if (!is_sort_of(domain[0], m_bv_fid, BV_SORT))
m_manager->raise_exception("sort mismatch, expected argument of bitvector sort");
if (!is_sort_of(range, m_bv_fid, BV_SORT))
m_manager->raise_exception("sort mismatch, expected range of FloatingPoint sort");
sort * bv_srt = m_bv_plugin->mk_sort(m_bv_fid, 1, parameters);
return m_manager->mk_func_decl(symbol("fp.to_sbv_unspecified"), 0, domain, bv_srt, func_decl_info(m_family_id, k, num_parameters, parameters));
}
func_decl * float_decl_plugin::mk_internal_to_real_unspecified(
decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
if (arity != 0)
m_manager->raise_exception("invalid number of arguments to internal_to_real_unspecified");
if (!is_sort_of(range, m_arith_fid, REAL_SORT))
m_manager->raise_exception("sort mismatch, expected range of FloatingPoint sort");
return m_manager->mk_func_decl(symbol("fp.to_real_unspecified"), 0, domain, m_real_sort, func_decl_info(m_family_id, k, num_parameters, parameters));
}
func_decl * float_decl_plugin::mk_func_decl(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
@ -726,6 +765,12 @@ func_decl * float_decl_plugin::mk_func_decl(decl_kind k, unsigned num_parameters
return mk_internal_bv_wrap(k, num_parameters, parameters, arity, domain, range);
case OP_FLOAT_INTERNAL_BVUNWRAP:
return mk_internal_bv_unwrap(k, num_parameters, parameters, arity, domain, range);
case OP_FLOAT_INTERNAL_TO_UBV_UNSPECIFIED:
return mk_internal_to_ubv_unspecified(k, num_parameters, parameters, arity, domain, range);
case OP_FLOAT_INTERNAL_TO_SBV_UNSPECIFIED:
return mk_internal_to_sbv_unspecified(k, num_parameters, parameters, arity, domain, range);
case OP_FLOAT_INTERNAL_TO_REAL_UNSPECIFIED:
return mk_internal_to_real_unspecified(k, num_parameters, parameters, arity, domain, range);
default:
m_manager->raise_exception("unsupported floating point operator");
return 0;
@ -864,7 +909,8 @@ bool float_decl_plugin::is_unique_value(app* e) const {
float_util::float_util(ast_manager & m):
m_manager(m),
m_fid(m.mk_family_id("float")),
m_a_util(m) {
m_a_util(m),
m_bv_util(m) {
m_plugin = static_cast<float_decl_plugin*>(m.get_plugin(m_fid));
}
@ -916,3 +962,19 @@ app * float_util::mk_nzero(unsigned ebits, unsigned sbits) {
return mk_value(v);
}
app * float_util::mk_internal_to_ubv_unspecified(unsigned width) {
parameter ps[] = { parameter(width) };
sort * range = m_bv_util.mk_sort(width);
return m().mk_app(get_family_id(), OP_FLOAT_INTERNAL_TO_UBV_UNSPECIFIED, 1, ps, 0, 0, range);
}
app * float_util::mk_internal_to_sbv_unspecified(unsigned width) {
parameter ps[] = { parameter(width) };
sort * range = m_bv_util.mk_sort(width);
return m().mk_app(get_family_id(), OP_FLOAT_INTERNAL_TO_SBV_UNSPECIFIED, 1, ps, 0, 0, range);
}
app * float_util::mk_internal_to_real_unspecified() {
sort * range = m_a_util.mk_real();
return m().mk_app(get_family_id(), OP_FLOAT_INTERNAL_TO_REAL_UNSPECIFIED, 0, 0, 0, 0, range);
}