Messages in this thread | | | Date | Mon, 14 Apr 2003 22:02:16 +0100 | From | Dave Jones <> | Subject | Re: BUGed to death |
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On Mon, Apr 14, 2003 at 10:40:41PM +0200, Duncan Sands wrote:
> You would think that the compiler would consider a branch leading to > ud2 (i.e. BUG()) to be "unlikely", but it doesn't seem to. Maybe some > improvement can be made there.
BUG_ON is already marked unlikely. See include/linux/kernel.h
The costs here are doing the actual checks, nothing to do with the branch prediction.
Dave
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