On Sat, Feb 27, 2010 at 04:40:12AM +0000, Izumi Tsutsui wrote: > > Log Message: > Always call device dependent functions via pointers rather than > using conditionals to switch inline functions for modern processors.
Eh ???
if (foo) bar(); else baz();
will probably execute faster than:
(*bar_baz)();
since the indirect jump is (IIRC) always unpredicted.
the 'if' version stands a chance of correctly predicting the jump.
David
--
David Laight: da...@l8s.co.uk
