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Reverted the definition of the EIGEN_ALIGN to its former meaning (i.e. a boolean)

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Created a new EIGEN_ALIGN_BYTES define to encode how the data should be aligned
Fixed a few remaining alignment issues exposed when the Eigen code is compiled with avx enabled.
Created a new EIGEN_ALIGN_DEFAULT define, which is set to the minimum alignment value required for the chosen instruction set. Use this value instead of EIGEN_ALIGN32 to preserve the existing alignment on SSE/Altivec/Neon.
This commit is contained in:
Benoit Steiner
2014-02-18 18:06:44 -08:00
parent 64a85800bd
commit 7ed9441ea4
13 changed files with 61 additions and 53 deletions
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Eigen/src/Core/GeneralProduct.h
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@@ -397,7 +397,7 @@ struct gemv_static_vector_if<Scalar,Size,MaxSize,true>
internal::plain_array<Scalar,EIGEN_SIZE_MIN_PREFER_FIXED(Size,MaxSize)+(ForceAlignment?PacketSize:0),0> m_data;
EIGEN_STRONG_INLINE Scalar* data() {
return ForceAlignment
? reinterpret_cast<Scalar*>((reinterpret_cast<size_t>(m_data.array) & ~(size_t(15))) + 16)
? reinterpret_cast<Scalar*>((reinterpret_cast<size_t>(m_data.array) & ~(size_t(EIGEN_ALIGN_BYTES-1))) + EIGEN_ALIGN_BYTES)
: m_data.array;
}
#endif