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

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Message #110 received at 42147 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Paul Eggert <eggert <at> cs.ucla.edu>
Cc: mattiase <at> acm.org, monnier <at> iro.umontreal.ca, andrea_corallo <at> yahoo.it,
 42147 <at> debbugs.gnu.org
Subject: Re: bug#42147: 28.0.50;
 pure vs side-effect-free, missing optimizations?
Date: Sat, 04 Jul 2020 19:15:48 +0300

> From: Paul Eggert <eggert <at> cs.ucla.edu>
> Date: Sat, 4 Jul 2020 08:57:08 -0700
> Cc: Stefan Monnier <monnier <at> iro.umontreal.ca>,
>  Andrea Corallo <andrea_corallo <at> yahoo.it>, 42147 <at> debbugs.gnu.org
> 
> This makes Emacs behavior more consistent across platforms,
> and should make some byte-code optimizations safer (Bug#42147).
> We can assume SSE2 by now, since it has been out for 20 years.
> * configure.ac: On x86 with GCC, default to -msse2 -mfpmath=sse.

This assumes that the system on which Emacs runs is the same as where
it was built, doesn't it?  Is that assumption valid enough to do this
by default?

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