video_core: optimize NaN check

This commit is contained in:
Tillmann Karras 2017-12-03 23:39:30 +00:00
parent 81fbe06915
commit 1c2750d5bd

View file

@ -60,8 +60,8 @@ public:
Float<M, E> operator*(const Float<M, E>& flt) const {
float result = value * flt.ToFloat32();
// PICA gives 0 instead of NaN when multiplying by inf
if (!std::isnan(value) && !std::isnan(flt.ToFloat32()))
if (std::isnan(result))
if (!std::isnan(value) && !std::isnan(flt.ToFloat32()))
result = 0.f;
return Float<M, E>::FromFloat32(result);
}