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Add dedicated implementations of predux_any for AVX512, NEON, and Altivec/VSE

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Gael Guennebaud
2019-01-09 16:40:42 +01:00
parent 3f14e0d19e
commit 47810cf5b7
3 changed files with 19 additions and 0 deletions
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7
Eigen/src/Core/arch/AVX512/PacketMath.h
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@@ -969,6 +969,13 @@ EIGEN_STRONG_INLINE double predux_max<Packet8d>(const Packet8d& a) {
return pfirst(_mm256_max_pd(res, _mm256_shuffle_pd(res, res, 1)));
}
template<> EIGEN_STRONG_INLINE bool predux_any(const Packet16f& x)
{
Packet16i xi = _mm512_castps_si512(x);
__mmask16 tmp = _mm512_test_epi32_mask(xi,xi);
return !_mm512_kortestz(tmp,tmp);
}
template <int Offset>
struct palign_impl<Offset, Packet16f> {
static EIGEN_STRONG_INLINE void run(Packet16f& first,