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author | Benoit Jacob <benoitjacob@google.com> | 2015-02-23 16:55:17 -0500 |
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committer | Benoit Jacob <benoitjacob@google.com> | 2015-02-23 16:55:17 -0500 |
commit | 26275b250a271b27132e41486de5bb5b18e8365a (patch) | |
tree | 26d6691419faf098d62e4e94ec16a36846142769 /Eigen/src/Core/DenseStorage.h | |
parent | 488874781b7349bb91961de5c7b63af93124c504 (diff) |
Fix my recent prefetch changes:
- the first prefetch is actually harmful on Haswell with FMA,
but it is the most beneficial on ARM.
- the second prefetch... I was very stupid and multiplied by sizeof(scalar)
and offset of a scalar* pointer. The old offset was 64; pk = 8, so 64=pk*8.
So this effectively restores the older offset. Actually, there were
two prefetches here, one with offset 48 and one with offset 64. I could not
confirm any benefit from this strange 48 offset on either the haswell or
my ARM device.
Diffstat (limited to 'Eigen/src/Core/DenseStorage.h')
0 files changed, 0 insertions, 0 deletions