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re-enable fast pset1-pstore by introducing a new higher level pstore1 function

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This commit is contained in:
Gael Guennebaud
2011-03-02 10:55:44 +01:00
parent 951e238430
commit c8e1b679fa
3 changed files with 27 additions and 11 deletions
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13
Eigen/src/Core/arch/SSE/PacketMath.h
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@@ -305,6 +305,19 @@ template<> EIGEN_STRONG_INLINE void pstoreu<double>(double* to, const Packet2d&
template<> EIGEN_STRONG_INLINE void pstoreu<float>(float* to, const Packet4f& from) { EIGEN_DEBUG_UNALIGNED_STORE pstoreu((double*)to, _mm_castps_pd(from)); }
template<> EIGEN_STRONG_INLINE void pstoreu<int>(int* to, const Packet4i& from) { EIGEN_DEBUG_UNALIGNED_STORE pstoreu((double*)to, _mm_castsi128_pd(from)); }
// some compilers might be tempted to perform multiple moves instead of using a vector path.
template<> EIGEN_STRONG_INLINE void pstore1<Packet4f>(float* to, const float& a)
{
Packet4f pa = _mm_set_ss(a);
pstore(to, vec4f_swizzle1(pa,0,0,0,0));
}
// some compilers might be tempted to perform multiple moves instead of using a vector path.
template<> EIGEN_STRONG_INLINE void pstore1<Packet2d>(double* to, const double& a)
{
Packet2d pa = _mm_set_sd(a);
pstore(to, vec2d_swizzle1(pa,0,0));
}
template<> EIGEN_STRONG_INLINE void prefetch<float>(const float* addr) { _mm_prefetch((const char*)(addr), _MM_HINT_T0); }
template<> EIGEN_STRONG_INLINE void prefetch<double>(const double* addr) { _mm_prefetch((const char*)(addr), _MM_HINT_T0); }
template<> EIGEN_STRONG_INLINE void prefetch<int>(const int* addr) { _mm_prefetch((const char*)(addr), _MM_HINT_T0); }