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Fix breakage in pcast<Packet2l, Packet2d> due to _mm_cvtsi128_si64 not being available on 32 bit x86.

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If SSE 4.1 is available use the faster _mm_extract_epi64 intrinsic.
This commit is contained in:
Rasmus Munk Larsen 2020-09-18 18:13:20 -07:00
parent 9aad16b443
commit c4b99f78c7
1 changed files with 14 additions and 3 deletions
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15
Eigen/src/Core/arch/SSE/TypeCasting.h
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@ -73,8 +73,19 @@ template<> EIGEN_STRONG_INLINE Packet2l pcast<Packet2d, Packet2l>(const Packet2d
return _mm_set_epi64x(int64_t(a[1]), int64_t(a[0]));
}
template<> EIGEN_STRONG_INLINE Packet2d pcast<Packet2l, Packet2d>(const Packet2l& a) {
return _mm_set_pd(double(_mm_cvtsi128_si64(_mm_unpackhi_epi64(a, a))), double(_mm_cvtsi128_si64(a)));
template <>
EIGEN_STRONG_INLINE Packet2d pcast<Packet2l, Packet2d>(const Packet2l& a) {
#ifdef EIGEN_VECTORIZE_SSE4_1
int64_t a0 = _mm_extract_epi64(a, 0);
int64_t a1 = _mm_extract_epi64(a, 1);
#elif EIGEN_ARCH_x86_64
int64_t a0 = _mm_cvtsi128_si64(a);
int64_t a1 = _mm_cvtsi128_si64(_mm_unpackhi_epi64(a, a));
#else
int64_t a0 = a.m_val[0];
int64_t a1 = a.m_val[1];
#endif
return _mm_set_pd(static_cast<double>(a1), static_cast<double>(a0));
}
template<> EIGEN_STRONG_INLINE Packet4i preinterpret<Packet4i,Packet4f>(const Packet4f& a) {