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#include <c10/core/SymFloat.h>
#include <c10/core/SymNodeImpl.h>
#include <array>
#include <cmath>
#include <utility>
namespace c10 {
SymNode SymFloat::toSymNodeImpl() const {
TORCH_CHECK(is_symbolic());
return SymNode::reclaim_copy(toSymNodeImplUnowned());
}
SymNode SymFloat::wrap_node(const SymNode& base) const {
if (is_symbolic()) {
return toSymNodeImpl();
} else {
return base->wrap_float(as_float_unchecked());
}
}
static std::array<SymNode, 2> normalize_symfloats(
const SymFloat& a_,
const SymFloat& b_) {
SymNode a, b;
if (a_.is_symbolic())
a = a_.toSymNodeImpl();
if (b_.is_symbolic())
b = b_.toSymNodeImpl();
SymNodeImpl* common = a ? a.get() : b.get();
if (!a) {
a = common->wrap_float(a_.as_float_unchecked());
}
if (!b) {
b = common->wrap_float(b_.as_float_unchecked());
}
return {std::move(a), std::move(b)};
}
SymFloat SymFloat::operator+(const SymFloat& sci) const {
if (!is_symbolic() && !sci.is_symbolic()) {
return SymFloat(data_ + sci.data_);
}
auto res = normalize_symfloats(*this, sci);
return SymFloat(res[0]->add(res[1]));
}
SymFloat SymFloat::operator-(const SymFloat& sci) const {
if (!is_symbolic() && !sci.is_symbolic()) {
return SymFloat(data_ - sci.data_);
}
auto res = normalize_symfloats(*this, sci);
return SymFloat(res[0]->sub(res[1]));
}
SymFloat SymFloat::operator*(const SymFloat& sci) const {
if (!is_symbolic() && !sci.is_symbolic()) {
return SymFloat(data_ * sci.data_);
}
auto res = normalize_symfloats(*this, sci);
return SymFloat(res[0]->mul(res[1]));
}
SymFloat SymFloat::operator/(const SymFloat& sci) const {
if (!is_symbolic() && !sci.is_symbolic()) {
return SymFloat(data_ / sci.data_);
}
auto res = normalize_symfloats(*this, sci);
return SymFloat(res[0]->truediv(res[1]));
}
SymBool SymFloat::sym_eq(const SymFloat& sci) const {
if (!is_symbolic() && !sci.is_symbolic()) {
return data_ == sci.data_;
}
auto res = normalize_symfloats(*this, sci);
return res[0]->eq(res[1]);
}
SymBool SymFloat::sym_ne(const SymFloat& sci) const {
if (!is_symbolic() && !sci.is_symbolic()) {
return data_ != sci.data_;
}
auto res = normalize_symfloats(*this, sci);
return res[0]->ne(res[1]);
}
SymBool SymFloat::sym_lt(const SymFloat& sci) const {
if (!is_symbolic() && !sci.is_symbolic()) {
return data_ < sci.data_;
}
auto res = normalize_symfloats(*this, sci);
return res[0]->lt(res[1]);
}
SymBool SymFloat::sym_le(const SymFloat& sci) const {
if (!is_symbolic() && !sci.is_symbolic()) {
return data_ <= sci.data_;
}
auto res = normalize_symfloats(*this, sci);
return res[0]->le(res[1]);
}
SymBool SymFloat::sym_gt(const SymFloat& sci) const {
if (!is_symbolic() && !sci.is_symbolic()) {
return data_ > sci.data_;
}
auto res = normalize_symfloats(*this, sci);
return res[0]->gt(res[1]);
}
SymBool SymFloat::sym_ge(const SymFloat& sci) const {
if (!is_symbolic() && !sci.is_symbolic()) {
return data_ >= sci.data_;
}
auto res = normalize_symfloats(*this, sci);
return res[0]->ge(res[1]);
}
SymFloat SymFloat::min(const SymFloat& sci) const {
if (!is_symbolic() && !sci.is_symbolic()) {
return std::min(data_, sci.data_);
}
auto res = normalize_symfloats(*this, sci);
return SymFloat(res[0]->sym_min(res[1]));
}
SymFloat SymFloat::max(const SymFloat& sci) const {
if (!is_symbolic() && !sci.is_symbolic()) {
return std::max(data_, sci.data_);
}
auto res = normalize_symfloats(*this, sci);
return SymFloat(res[0]->sym_max(res[1]));
}
std::ostream& operator<<(std::ostream& os, const SymFloat& s) {
if (s.is_symbolic()) {
os << s.toSymNodeImpl()->str();
} else {
os << s.as_float_unchecked();
}
return os;
}
SymFloat SymFloat::sqrt() const {
if (!is_symbolic()) {
return SymFloat(std::sqrt(data_));
}
auto other = SymFloat(0.5);
auto res = normalize_symfloats(*this, other);
return SymFloat(res[0]->pow(res[1]));
}
double SymFloat::guard_float(const char* file, int64_t line) const {
if (!is_symbolic()) {
return data_;
}
SymNode a = toSymNodeImpl();
return a->guard_float(file, line);
}
bool SymFloat::has_hint() const {
if (!is_symbolic()) {
return true;
}
return toSymNodeImpl()->has_hint();
}
} // namespace c10
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