Re: [PATCH v2 2/4] perf: streamline append_chain() function

[Waiman Long]

On 10/19/2013 08:29 PM, Andi Kleen wrote:
> Waiman Long<Waiman.Long@xxxxxx>  writes:
>
> > as well as
> > using ?: statement which can be more efficient than the regular if
> > statement in some architectures.
> I don't think that's true, the compiler does if conversion anyways for both.
>
> But change seems reasonable.
>
> -Andi

That may be true for a simple if statement. However, the condition was 
checked as the last of 3 tests. I doubt if the compiler is able to 
optimize that effectively.

-Longman
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