implement optimized ploadu for MSVC10: this also fix bad code generation in gebp_kernel :)
diff --git a/Eigen/src/Core/arch/SSE/PacketMath.h b/Eigen/src/Core/arch/SSE/PacketMath.h
index fa499a8..0872a04 100644
--- a/Eigen/src/Core/arch/SSE/PacketMath.h
+++ b/Eigen/src/Core/arch/SSE/PacketMath.h
@@ -222,7 +222,20 @@
template<> EIGEN_STRONG_INLINE Packet4i pload<Packet4i>(const int* from) { EIGEN_DEBUG_ALIGNED_LOAD return _mm_load_si128(reinterpret_cast<const Packet4i*>(from)); }
#if defined(_MSC_VER)
- template<> EIGEN_STRONG_INLINE Packet4f ploadu<Packet4f>(const float* from) { EIGEN_DEBUG_UNALIGNED_LOAD return _mm_loadu_ps(from); }
+ template<> EIGEN_STRONG_INLINE Packet4f ploadu<Packet4f>(const float* from) {
+ EIGEN_DEBUG_UNALIGNED_LOAD
+ #if (_MSC_VER==1600)
+ // NOTE Some version of MSVC10 generates bad code when using _mm_loadu_ps
+ // (i.e., it does not generate an unaligned load!!
+ // TODO On most architectures this version should also be faster than a single _mm_loadu_ps
+ // so we could also enable it for MSVC08 but first we have to make this later does not generate crap when doing so...
+ __m128 res = _mm_loadl_pi(res, (const __m64*)(from));
+ res = _mm_loadh_pi(res, (const __m64*)(from+2));
+ return res;
+ #else
+ return _mm_loadu_ps(from);
+ #endif
+ }
template<> EIGEN_STRONG_INLINE Packet2d ploadu<Packet2d>(const double* from) { EIGEN_DEBUG_UNALIGNED_LOAD return _mm_loadu_pd(from); }
template<> EIGEN_STRONG_INLINE Packet4i ploadu<Packet4i>(const int* from) { EIGEN_DEBUG_UNALIGNED_LOAD return _mm_loadu_si128(reinterpret_cast<const Packet4i*>(from)); }
#else
