Daisuke Nojiri e7e0cf2cae Optimize memmove ...

This speeds up memmove by copying a word at a time.

Ran the unit test on Peppy:
  > runtest
  ...
  Running test_memmove... (speed gain: 2156 -> 592 us) OK
  ...

Ran make buildall:
  ...
  Running test_memmove... (speed gain: 143918 -> 32367 us) OK
  ...

TEST=Described above.
BUG=chrome-os-partner:23720
BRANCH=none
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Tested-by: Daisuke Nojiri <dnojiri@google.com>
Change-Id: I6a3ac6aed27a404c3bef227b6c886a59414b51d7
Reviewed-on: https://chromium-review.googlesource.com/186020
Reviewed-by: Vic Yang <victoryang@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>

2014-02-13 20:37:05 +00:00

9.7 KiB

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