Re: [PATCH 4/4] trace: profile all if conditionals
From: Steven Rostedt
Date: Fri Nov 21 2008 - 18:34:18 EST
On Fri, 21 Nov 2008, Andrew Morton wrote:
> >
> > +#define if(cond) if (__builtin_constant_p((cond)) ? !!(cond) : \
>
> wheee...
>
> Now how are you going to profile ?:, while, for(;expr;), etc? ;)
I don't know. Give me a few months, I'll figure out a way ;-)
This is just a way to see if we should add or remove more if annotations.
(i.e. likely() and unlikey() )
-- Steve
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