GNU bug report logs - #42147
28.0.50; pure vs side-effect-free, missing optimizations?

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Package: emacs;

Reported by: Andrea Corallo <andrea_corallo <at> yahoo.it>

Date: Tue, 30 Jun 2020 22:28:02 UTC

Severity: normal

Found in version 28.0.50

Done: Mattias Engdegård <mattiase <at> acm.org>

Bug is archived. No further changes may be made.

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From: Mattias Engdegård <mattiase <at> acm.org>
To: Andrea Corallo <andrea_corallo <at> yahoo.it>
Cc: Paul Eggert <eggert <at> cs.ucla.edu>, Stefan Monnier <monnier <at> iro.umontreal.ca>, 42147 <at> debbugs.gnu.org
Subject: bug#42147: 28.0.50; pure vs side-effect-free, missing  optimizations? 
Date: Wed, 1 Jul 2020 18:08:28 +0200

[Message part 1 (text/plain, inline)]
Andrea, I see nothing directly wrong with your patch, but perhaps our messages went past one another since our lists of proposed pure functions differ.

> More useful would be the ability to constant-fold ash, expt, %, mod and abs for a subset of each respective domain. I can write a patch.

Here is that patch.


[0001-Constant-fold-mod-ash-expt-and-abs-with-constant-int.patch (application/octet-stream, attachment)]
This bug report was last modified 4 years and 281 days ago.

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