On Sat, Jan 30, 2010 at 11:49:31PM +0000, Matt Thomas wrote: > Change MIPS_CURLWP from s7 to t8. In a MALTA64 kernel, s6 is used > 9155 times which means the compiler could really use s7 is was free > to do so. The least used temporary was t8 (288 times). Once the > kernel was switched to use t8 for MIPS_CURLWP, s7 was used 7524 > times.
Huh. That surprises me slightly. Good to know though. Remember to bump the kernel version when you merge the branch, or anyone using modules will get a nasty surprise :-) > [For some reason, pre-change t1 was never used and post change t2 was never > used. Not sure why.] gcc does not seem to be very deterministic about this kind of thing. -- David A. Holland dholl...@netbsd.org
