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e : emacs-devel@gnu.org 7 July 2012 • 4:27AM -0400

Re: Inefficiency in Bgotoifnil byte-code instruction
by Tom Tromey

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Stefan> There's a lot of room for improvement in the regexp-matcher as
Stefan> well, yes.  If we could generate the code via something like
Stefan> vmgen it would be even better.

Yeah.  Translating the bytecode engine to vmgen is not trivial, but at
first blush it seems doable.  This would have a few possible advantages
-- TOS caching, superinstructions, possibly better micro-optimization.

I didn't look at the regexp matcher with this in mind.


It also occurred to me recently that the computed goto treatment could
perhaps be applied to mark_object.

Tom


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