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Generalized predux4 to support AVX512 packets, and renamed it predux_half.

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Disabled the implementation of pabs for avx512 since the corresponding intrinsics are not shipped with gcc
This commit is contained in:
Benoit Steiner
2016-02-01 14:35:51 -08:00
parent c1a42c2d0d
commit 85b6d82b49
3 changed files with 8 additions and 6 deletions
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2
Eigen/src/Core/arch/AVX/PacketMath.h
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@@ -401,7 +401,7 @@ template<> EIGEN_STRONG_INLINE double predux<Packet4d>(const Packet4d& a)
return pfirst(_mm256_hadd_pd(tmp0,tmp0));
}
template<> EIGEN_STRONG_INLINE Packet4f predux4<Packet8f>(const Packet8f& a)
template<> EIGEN_STRONG_INLINE Packet4f predux_half<Packet8f>(const Packet8f& a)
{
return _mm_add_ps(_mm256_castps256_ps128(a),_mm256_extractf128_ps(a,1));
}