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Re: [RFC] bytecomp: simple source-level optimization
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From: |
Leo Liu |
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Subject: |
Re: [RFC] bytecomp: simple source-level optimization |
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Date: |
Mon, 23 Jun 2014 16:29:23 +0800 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (CentOS 6.5) |
On 2014-06-23 10:43 +0400, Dmitry Antipov wrote:
> Source forms like:
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> (if (= (point) (point-min)) ...)
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> or:
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> (if (eq (point-max) (point)) ...)
>
> are widely used, but compiled as is, which is suboptimal.
> The first one can be optimized to (if (bobp) ...) and the
> second to (if (eobp) ...), respectively.
Optimise for unidiomatic code in non-performace-critical cases? Not sure
;)
Leo