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accumulate scalars when simplifying

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-09-26 10:11:22 -07:00
parent 4e2cd2c8de
commit c076c17df9
3 changed files with 46 additions and 18 deletions
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11
src/math/lp/nex.h
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@ -108,7 +108,7 @@ public:
lpvar var() const { return m_j; }
lpvar& var() { return m_j; } // the setter
std::ostream & print(std::ostream& out) const {
out << 'v' << m_j;
out << (char)('a' + m_j);
return out;
}
@ -141,7 +141,7 @@ const nex_sum* to_sum(const nex*a);
void promote_children_of_sum(ptr_vector<nex> & children, nex_lt);
class nex_pow;
void promote_children_of_mul(vector<nex_pow> & children, nex_lt);
void simplify_children_of_mul(vector<nex_pow> & children, nex_lt);
class nex_pow {
nex* m_e;
@ -243,7 +243,7 @@ public:
TRACE("nla_cn_details", tout << "**e = " << **e << "\n";);
*e = this;
TRACE("nla_cn_details", tout << *this << "\n";);
promote_children_of_mul(m_children, lt);
simplify_children_of_mul(m_children, lt);
if (size() == 1 && m_children[0].pow() == 1)
*e = m_children[0].e();
TRACE("nla_cn_details", tout << *this << "\n";);
@ -424,6 +424,11 @@ inline const nex_scalar* to_scalar(const nex*a) {
return static_cast<const nex_scalar*>(a);
}
inline nex_scalar* to_scalar(nex*a) {
SASSERT(a->is_scalar());
return static_cast<nex_scalar*>(a);
}
inline const nex_mul* to_mul(const nex*a) {
SASSERT(a->is_mul());
return static_cast<const nex_mul*>(a);