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Re: Emacs Lisp JIT Compiler

From: Richard Stallman
Subject: Re: Emacs Lisp JIT Compiler
Date: Mon, 13 Aug 2018 19:31:21 -0400

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To replace an interpreter by a JIT compiler means more oomplexity and
also more possible problems.  (For example, if there are platforms
someday that libjit does not support.)  Reading a Lisp interpreter is
very useful for learning.

If the plan is to add a jit and keep the Lisp interpreter as well,
we don't lose its advantages for study, and we can still support all
the platforms -- but we add complexity even more.

I don't think a 3% speedup is worth those drawbacks.  Or even a 10%
speedup.  A really big speedup would justify the costs.

Dr Richard Stallman
President, Free Software Foundation (https://gnu.org, https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)

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