Messages in this thread | ![/](/images/icornerl.gif) | | Date | Tue, 15 Apr 2003 07:35:44 -0700 | From | "Martin J. Bligh" <> | Subject | Re: BUGed to death |
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>> Seems all these bug checks are fairly expensive. I can get 1% >> back on system time for kernel compiles by changing BUG to >> "do {} while (0)" to make them all compile away. Profiles aren't >> very revealing though ... seems to be within experimental error ;-( > > What happens if you just turn BUG_ON into "do {} while (0)"?
I believe I already did that by turning BUG() into a null expression.
#define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0)
The compiler should be smart enough to optimise that away, methinks.
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