Even with inlining the code is rather silly ;)
[x] (if x false true)
so you'd get,
(if (if test false true) then else)
Which relies a bit too much on the JVM's JIT for my taste :D
I've always wondered what the reason for the original implementation is.
Keep closer to the implementation of not, so that no incompatibilities arise
should not become a protocol one day?
Cheers Jan
> On 22 Jan 2015, at 01:32, Mikera <[email protected]> wrote:
>
> Interesting - there seems to be a very slight performance advantage to your
> version on my machine (consistently about 25% faster for if-nots in a tight
> loop).
>
> I think the problem is actually with "not" - which isn't getting inlined
> currently. If I patch not so that it is inlined, the difference disappears.
>
> Worth a quick patch maybe?
>
> On Thursday, 22 January 2015 03:51:37 UTC+8, Leon Grapenthin wrote:
> I am surprised to find the two branch implementation of if-not as follows:
>
>
> ([test then else]
> `(if (not ~test) ~then ~else))
>
>
> What I expected was:
>
>
> ([test then else]
> `(if ~test ~else ~then))
>
>
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