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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Message #149 received at 42147 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Schwab <schwab <at> linux-m68k.org>
To: Paul Eggert <eggert <at> cs.ucla.edu>
Cc: Pip Cet <pipcet <at> gmail.com>, mattiase <at> acm.org, 42147 <at> debbugs.gnu.org,
 monnier <at> iro.umontreal.ca, andrea_corallo <at> yahoo.it,
 Eli Zaretskii <eliz <at> gnu.org>
Subject: Re: bug#42147: 28.0.50; pure vs side-effect-free, missing
 optimizations?
Date: Sun, 05 Jul 2020 10:39:02 +0200

On Jul 05 2020, Paul Eggert wrote:

>>   . why didn't GCC folks made SSE2 the default output?
>
> I suspect they think x86 is on its way out and not worth worrying
> about.

It all depends on how you configure it.  You can make -mfpmath=sse the
default if you like, but gcc still supports pre-SSE2 configurations.

Andreas.

-- 
Andreas Schwab, schwab <at> linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
"And now for something completely different."
This bug report was last modified 4 years and 282 days ago.

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