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Make sure exp(-Inf) is zero for vectorized expressions. This fixes #2385.

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This commit is contained in:
Rasmus Munk Larsen
2021-12-08 17:57:23 +00:00
parent 39a6aff16c
commit f04fd8b168
2 changed files with 10 additions and 6 deletions
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3
test/packetmath.cpp
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@@ -48,7 +48,7 @@ inline bool REF_MUL(const bool& a, const bool& b) {
template <typename T>
inline T REF_FREXP(const T& x, T& exp) {
int iexp;
int iexp = 0;
EIGEN_USING_STD(frexp)
const T out = static_cast<T>(frexp(x, &iexp));
exp = static_cast<T>(iexp);
@@ -713,6 +713,7 @@ void packetmath_real() {
for (int i = 0; i < size; ++i) {
data1[i] = Scalar(internal::random<double>(-87, 88));
data2[i] = Scalar(internal::random<double>(-87, 88));
data1[0] = -NumTraits<Scalar>::infinity();
}
CHECK_CWISE1_IF(PacketTraits::HasExp, std::exp, internal::pexp);