[debbugs-tracker] bug#17584: closed (24.3.91; bug of `=' operator optimization)

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Your message dated Mon, 26 May 2014 16:54:33 -0400
with message-id <address@hidden>
and subject line Re: bug#17584: 24.3.91; bug of `=' operator optimization
has caused the debbugs.gnu.org bug report #17584,
regarding 24.3.91; bug of `=' operator optimization
to be marked as done.

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17584: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=17584
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> --- Begin Message ---
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> Subject: 
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> 24.3.91; bug of `=' operator optimization
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> Date: 
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> Sun, 25 May 2014 12:05:07 +0900
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> (byte-optimize-form '(lambda (a b) (= a b 0)))
> ==> (lambda (a b) (= a b 0))
> (byte-optimize-form '(lambda (a b) (= 0 a b)))
> ==> (lambda (a b) (= a 0))
>
> - (put '=   'byte-optimizer 'byte-optimize-binary-predicate)
> + (put '=   'byte-optimizer 'byte-optimize-predicate)
>
>
> -- Shigeru
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>
> --- End Message ---
> --- Begin Message ---
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> Subject: 
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> Re: bug#17584: 24.3.91; bug of `=' operator optimization
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> Date: 
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> Mon, 26 May 2014 16:54:33 -0400
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> User-agent: 
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> Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (gnu/linux)
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>
>
>
> > The following is a code with a little more optimized than
> > byte-optimize-predicate.  It can be used by `<', `<=', `>', `>='.
>
> Here I also doubt it's worth the trouble: the "multiple arg" version of
> those predicates was only added recently so it's not used very often,
> and of those cases I doubt many of them would benefit from
> your optimization.
>
> So I installed a simpler patch which just fixes the bogus optimization
> when there are more than 2 args.
>
>
>         Stefan
>
>
> --- End Message ---