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SubjectRe: [PATCH] likely cleanup: remove unlikely for kfree(NULL)
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On Wed, 2006-04-26 at 12:05 +0200, Jörn Engel wrote:
> On Wed, 26 April 2006 10:27:18 +0200, Arjan van de Ven wrote:
> >
> > what I would like is kfree to become an inline wrapper that does the
> > null check inline, that way gcc can optimize it out (and it will in 4.1
> > with the VRP pass) if gcc can prove it's not NULL.
>
> How well can gcc optimize this case?

if you deref'd the pointer it'll optimize it away (assuming a new enough
gcc, like 4.1)


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