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Re: [v3] conditional tweak
Gabriel Dos Reis writes:
> Phil Edwards <phil@codesourcery.com> writes:
>
> | Here's my opinion before I vanish into non-networked-land for a few days:
> | for years, the GCC team has been warning of the dangers of slowing down the
> | compiler and runtime by a few percent at a time, because it accumulates
> | so quickly.
>
> I'm just asking for an actual data. Can we have one?
>
> -- Gaby
I didn't actually see any difference on an AMD XP2100, but the only
other platform I can really test is a mobile P4.
I submitted the patch on the theory that this is a frequently called
function in output numbers and this should potentially allow for
improvements on machines that can benefit. The only thought I had
against it was that machines usually predict against forward branches,
in which case, they are already biased away from the initialization
code.
Jerry