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| author |  Mark D Ryan <mark.d.ryan@intel.com> | 2018-05-17 17:04:00 +0100 |
|---|---|---|
| committer | Mark D Ryan <mark.d.ryan@intel.com> | 2018-05-17 17:04:00 +0100 |
| commit | 405859f18dac56f324e1d93ca8721d5f7fd22c62 (patch) | |
| tree | 0fcfabe307e9918e417ebc33d6d3425b47c7651d /Eigen/src/Core/util/Macros.h | |
| parent | 6293ad3f392a7b97ebb9f9f874682505c1391f2d (diff) | |
Set EIGEN_IDEAL_MAX_ALIGN_BYTES correctly for AVX512 builds
bug #1548
The macro EIGEN_IDEAL_MAX_ALIGN_BYTES is being incorrectly set to 32
on AVX512 builds. It should be set to 64. In the current code it is
only set to 64 if the macro EIGEN_VECTORIZE_AVX512 is defined. This
macro does get defined in AVX512 builds in Core, but only after Macros.h,
the file that defines EIGEN_IDEAL_MAX_ALIGN_BYTES, has been included.
This commit fixes the issue by setting EIGEN_IDEAL_MAX_ALIGN_BYTES to
64 if __AVX512F__ is defined.
Diffstat (limited to 'Eigen/src/Core/util/Macros.h')
| -rw-r--r-- | Eigen/src/Core/util/Macros.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Eigen/src/Core/util/Macros.h b/Eigen/src/Core/util/Macros.h index 9c68ecb7d..729fb3b1d 100644 --- a/Eigen/src/Core/util/Macros.h +++ b/Eigen/src/Core/util/Macros.h @@ -702,7 +702,7 @@ namespace Eigen { // If the user explicitly disable vectorization, then we also disable alignment #if defined(EIGEN_DONT_VECTORIZE) #define EIGEN_IDEAL_MAX_ALIGN_BYTES 0 -#elif defined(EIGEN_VECTORIZE_AVX512) +#elif defined(__AVX512F__) // 64 bytes static alignment is preferred only if really required #define EIGEN_IDEAL_MAX_ALIGN_BYTES 64 #elif defined(__AVX__) |