// exponent accordingly.
exponent += 1;
- if (addend) {
+ if (addend && addend->isNonZero()) {
// The intermediate result of the multiplication has "2 * precision"
// signicant bit; adjust the addend to be consistent with mul result.
//
extended-precision calculation. */
if (isFiniteNonZero() &&
multiplicand.isFiniteNonZero() &&
- addend.isFiniteNonZero()) {
+ addend.isFinite()) {
lostFraction lost_fraction;
lost_fraction = multiplySignificand(multiplicand, &addend);