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Unbork avx512 preduce_mul on MSVC.

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This commit is contained in:
Antonio Sánchez
2024-04-26 15:28:03 +00:00
parent 42aa3d17cd
commit dcceb9afec
2 changed files with 27 additions and 0 deletions
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9
test/packetmath.cpp
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@@ -623,6 +623,15 @@ void packetmath() {
VERIFY(test::areApprox(ref, data2, HalfPacketSize) && "internal::predux_half_dowto4");
}
// Avoid overflows.
if (NumTraits<Scalar>::IsInteger && NumTraits<Scalar>::IsSigned) {
Scalar limit =
static_cast<Scalar>(std::pow(static_cast<double>(numext::real(NumTraits<Scalar>::highest())),
1.0 / static_cast<double>(Eigen::internal::unpacket_traits<Packet>::size)));
for (int i = 0; i < PacketSize; ++i) {
data1[i] = internal::random<Scalar>(-limit, limit);
}
}
ref[0] = Scalar(1);
for (int i = 0; i < PacketSize; ++i) ref[0] = REF_MUL(ref[0], data1[i]);
VERIFY(internal::isApprox(ref[0], internal::predux_mul(internal::pload<Packet>(data1))) && "internal::predux_mul");