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Added initial NEON support, most tests pass however we had to use some hackish workarounds

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as gcc on ARM (both CodeSourcery 4.4.1 used and experimental 4.5) fail to
ensure proper alignment with __attribute__((aligned(16))). This has to be
fixed upstream to remove the workarounds.
This commit is contained in:
Konstantinos Margaritis
2010-03-03 11:25:41 -06:00
parent 45d19afb18
commit 112c550b4a
12 changed files with 423 additions and 5 deletions
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5
Eigen/src/Core/util/XprHelper.h
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@@ -88,8 +88,13 @@ 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__)
is_fixed_size_aligned
= (!is_dynamic_size_storage)
#else
// FIXME!!! This is a hack because ARM gcc does not honour __attribute__((aligned(16))) properly
is_fixed_size_aligned = 0
#endif
&& (((MaxCols*MaxRows) % ei_packet_traits<Scalar>::size) == 0),
aligned_bit = (((Options&DontAlign)==0)
&& (is_dynamic_size_storage || is_fixed_size_aligned))