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introduce EIGEN_DONT_ALIGN_STACK (disables alignment attributes) and EIGEN_DONT_ALIGN_HEAP (disables aligned malloc)...

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you can still use EIGEN_DONT_ALIGN to do both at once.
This commit is contained in:
Benoit Jacob
2010-03-06 02:17:37 -05:00
parent afd7ee759b
commit f03d95348d
8 changed files with 100 additions and 74 deletions
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11
Eigen/src/Core/util/XprHelper.h
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@@ -88,15 +88,20 @@ class ei_compute_matrix_flags
enum {
row_major_bit = Options&RowMajor ? RowMajorBit : 0,
is_dynamic_size_storage = MaxRows==Dynamic || MaxCols==Dynamic,
#if !defined(__ARM_NEON__)
#if EIGEN_ALIGN_STACK
is_fixed_size_aligned
= (!is_dynamic_size_storage) && (((MaxCols*MaxRows) % ei_packet_traits<Scalar>::size) == 0),
#else
// FIXME!!! This is a hack because ARM gcc does not honour __attribute__((aligned(16))) properly
is_fixed_size_aligned = 0,
#endif
#if EIGEN_ALIGN_HEAP
is_dynamic_size_aligned = is_dynamic_size_storage,
#else
is_dynamic_size_aligned = 0,
#endif
aligned_bit = (((Options&DontAlign)==0)
&& (is_dynamic_size_storage || is_fixed_size_aligned))
&& (is_dynamic_size_aligned || is_fixed_size_aligned))
? AlignedBit : 0,
packet_access_bit = ei_packet_traits<Scalar>::size > 1 && aligned_bit ? PacketAccessBit : 0
};