Commit Graph

2 Commits

Author SHA1 Message Date
Marco Costalba
e7d3a006cd Enable POPCNT at runtime
Runtime detect POPCNT instruction support and
use it.

Also if POPCNT is not supported we don't add _any_ overhead so
that we don't lose any speed in standard case.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2009-05-21 16:41:31 +02:00
Marco Costalba
3376c68f4b Introduce bitcount.h
It will be used for POPCNT intrinsics.

For now no bianry and functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2009-05-21 16:19:20 +02:00