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Add interpreted versions of unspecified cases of fp.to_ieee_bv and fp.to_real (#6077)

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Christoph M. Wintersteiger 2022-06-04 17:53:23 +01:00 • committed by GitHub
parent d722c73d4c
commit f77608ed88
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GPG key ID: 4AEE18F83AFDEB23
7 changed files with 57 additions and 20 deletions
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19
src/ast/fpa/fpa2bv_converter.cpp
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@ -52,7 +52,6 @@ fpa2bv_converter::~fpa2bv_converter() {
void fpa2bv_converter::mk_eq(expr * a, expr * b, expr_ref & result) {
if (is_float(a) && is_float(b)) {
TRACE("fpa2bv", tout << "mk_eq a=" << mk_ismt2_pp(a, m) << std::endl;
tout << "mk_eq b=" << mk_ismt2_pp(b, m) << std::endl;);
@ -98,12 +97,12 @@ void fpa2bv_converter::mk_ite(expr * c, expr * t, expr * f, expr_ref & result) {
expr* c2 = nullptr, *t2 = nullptr, *f2 = nullptr;
if (m.is_ite(t, c2, t2, f2)) {
mk_ite(c2, t2, f2, result);
mk_ite(c, result, f, result);
mk_ite(c, result, f, result);
}
else if (m.is_ite(f, c2, t2, f2)) {
mk_ite(c2, t2, f2, result);
mk_ite(c, t, result, result);
}
mk_ite(c, t, result, result);
}
else if (m_util.is_fp(t) && m_util.is_fp(f)) {
expr_ref t_sgn(m), t_sig(m), t_exp(m);
expr_ref f_sgn(m), f_sig(m), f_exp(m);
@ -3261,6 +3260,12 @@ void fpa2bv_converter::mk_to_ieee_bv_unspecified(func_decl * f, unsigned num, ex
SASSERT(is_well_sorted(m, result));
}
void fpa2bv_converter::mk_to_ieee_bv_i(func_decl * f, unsigned num, expr * const * args, expr_ref & result)
{
func_decl_ref fu(m.mk_func_decl(f->get_family_id(), OP_FPA_TO_IEEE_BV, 0, nullptr, num, args), m);
mk_to_bv(f, num, args, true, result);
}
void fpa2bv_converter::mk_to_bv(func_decl * f, unsigned num, expr * const * args, bool is_signed, expr_ref & result) {
TRACE("fpa2bv_to_bv", for (unsigned i = 0; i < num; i++)
tout << "arg" << i << " = " << mk_ismt2_pp(args[i], m) << std::endl;);
@ -3491,6 +3496,11 @@ void fpa2bv_converter::mk_to_real_unspecified(func_decl * f, unsigned num, expr
}
}
void fpa2bv_converter::mk_to_real_i(func_decl * f, unsigned num, expr * const * args, expr_ref & result) {
func_decl_ref fu(m.mk_func_decl(f->get_family_id(), OP_FPA_TO_REAL, 0, nullptr, num, args), m);
mk_to_real(f, num, args, result);
}
void fpa2bv_converter::mk_fp(func_decl * f, unsigned num, expr * const * args, expr_ref & result) {
SASSERT(num == 3);
SASSERT(m_bv_util.get_bv_size(args[0]) == 1);
@ -3500,7 +3510,6 @@ void fpa2bv_converter::mk_fp(func_decl * f, unsigned num, expr * const * args, e
TRACE("fpa2bv_mk_fp", tout << "mk_fp result = " << mk_ismt2_pp(result, m) << std::endl;);
}
void fpa2bv_converter::split_fp(expr * e, expr_ref & sgn, expr_ref & exp, expr_ref & sig) const {
expr* e_sgn = nullptr, *e_exp = nullptr, *e_sig = nullptr;
VERIFY(m_util.is_fp(e, e_sgn, e_exp, e_sig));