Peter Wemm 5dd883833c Provide a streamlined '#define curthread __curthread()' for amd64 to avoid
the compiler having to parse and optimize the PCPU_GET(curthread) so often.
__curthread() is an inline optimized version of PCPU_GET(curthread) that
knows that pc_curthread is at offset zero in the pcpu struct.  Add a
CTASSERT() to catch any possible changes to this.  This accounts for
just over a 1% wall clock speedup for total kernel compile/link time,
and 20% compile time speedup on some specific files depending on which
compile options are used.

Approved by:  re (jhb)
2003-11-20 22:54:44 +00:00
..
2003-10-18 14:10:28 +00:00
2003-11-15 01:25:26 +00:00