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Direct access of the packet structs fixes bug #62 and doe not seem to

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influence compiler optimization.
This commit is contained in:
Hauke Heibel 2009-11-04 15:38:11 +01:00
parent a7bebe0aeb
commit e2170b9f7e
1 changed files with 5 additions and 4 deletions
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9
Eigen/src/Core/arch/SSE/PacketMath.h
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@ -220,10 +220,11 @@ template<> EIGEN_STRONG_INLINE void ei_pstoreu<double>(double* to, const Packet2
template<> EIGEN_STRONG_INLINE void ei_pstoreu<float>(float* to, const Packet4f& from) { ei_pstoreu((double*)to, _mm_castps_pd(from)); }
template<> EIGEN_STRONG_INLINE void ei_pstoreu<int>(int* to, const Packet4i& from) { ei_pstoreu((double*)to, _mm_castsi128_pd(from)); }
#ifdef _MSC_VER
// this fix internal compilation error
template<> EIGEN_STRONG_INLINE float ei_pfirst<Packet4f>(const Packet4f& a) { float x = _mm_cvtss_f32(a); return x; }
template<> EIGEN_STRONG_INLINE double ei_pfirst<Packet2d>(const Packet2d& a) { double x = _mm_cvtsd_f64(a); return x; }
#ifdef _MSC_VER <= 1500
// The temporary variable fixes an internal compilation error.
// Direct of the struct members fixed bug #62.
template<> EIGEN_STRONG_INLINE float ei_pfirst<Packet4f>(const Packet4f& a) { return a.m128_f32[0]; }
template<> EIGEN_STRONG_INLINE double ei_pfirst<Packet2d>(const Packet2d& a) { return a.m128d_f64[0]; }
template<> EIGEN_STRONG_INLINE int ei_pfirst<Packet4i>(const Packet4i& a) { int x = _mm_cvtsi128_si32(a); return x; }
#else
template<> EIGEN_STRONG_INLINE float ei_pfirst<Packet4f>(const Packet4f& a) { return _mm_cvtss_f32(a); }