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1)provide a better generic paddsub op implementation

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2)make paddsub op support the Packet2cf/Packet4f/Packet2f in NEON
3)make paddsub op support the Packet2cf/Packet4f in SSE
This commit is contained in:
Guoqiang QI
2021-01-13 22:54:03 +00:00
committed by Rasmus Munk Larsen
parent 352f1422d3
commit 38ae5353ab
10 changed files with 115 additions and 40 deletions
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22
Eigen/src/Core/arch/SSE/PacketMath.h
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@@ -301,6 +301,28 @@ template<> EIGEN_STRONG_INLINE Packet2d psub<Packet2d>(const Packet2d& a, const
template<> EIGEN_STRONG_INLINE Packet4i psub<Packet4i>(const Packet4i& a, const Packet4i& b) { return _mm_sub_epi32(a,b); }
template<> EIGEN_STRONG_INLINE Packet16b psub<Packet16b>(const Packet16b& a, const Packet16b& b) { return _mm_xor_si128(a,b); }
template<> EIGEN_STRONG_INLINE Packet4f pxor<Packet4f>(const Packet4f& a, const Packet4f& b);
template<> EIGEN_STRONG_INLINE Packet4f paddsub<Packet4f>(const Packet4f& a, const Packet4f& b)
{
#ifdef EIGEN_VECTORIZE_SSE3
return _mm_addsub_ps(a,b);
#else
const Packet4f mask = _mm_castsi128_ps(_mm_setr_epi32(0x80000000,0x0,0x80000000,0x0));
return padd(a, pxor(mask, b));
#endif
}
template<> EIGEN_STRONG_INLINE Packet2d pxor<Packet2d>(const Packet2d& , const Packet2d& );
template<> EIGEN_STRONG_INLINE Packet2d paddsub<Packet2d>(const Packet2d& a, const Packet2d& b)
{
#ifdef EIGEN_VECTORIZE_SSE3
return _mm_addsub_pd(a,b);
#else
const Packet2d mask = _mm_castsi128_pd(_mm_setr_epi32(0x0,0x80000000,0x0,0x0));
return padd(a, pxor(mask, b));
#endif
}
template<> EIGEN_STRONG_INLINE Packet4f pnegate(const Packet4f& a)
{
const Packet4f mask = _mm_castsi128_ps(_mm_setr_epi32(0x80000000,0x80000000,0x80000000,0x80000000));