Gwendal Grignou 1d8fcfcd0d common: Add __fls function ...

Returns the most significant bit set.
Replace 31 - __builtin_clz(x), so x must be different from 0.
Use get_next_bit when not on the performance path,
on performance path set the bit field just after reading it.

BRANCH=smaug
BUG=none
TEST=compile, check Ryu still works.

Change-Id: Ie1a4cda4188f45b4bf92d0549d5c8fb401a30e5d
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/301300

2015-09-21 01:13:54 -07:00

..

cortex-m

common: Add __fls function

2015-09-21 01:13:54 -07:00

cortex-m0

common: Add __fls function

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host

host: mock i2c_xfer

2015-09-16 14:49:46 -07:00

nds32

common: Add __fls function

2015-09-21 01:13:54 -07:00