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

Previous Next

Full log

Message #134 received at 42147 <at> debbugs.gnu.org (full text, mbox):

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Eli Zaretskii <eliz <at> gnu.org>
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, 4 Jul 2020 12:26:46 -0700

On 7/4/20 10:10 AM, Eli Zaretskii wrote:

> What about the effect on the ABI?  If Emacs compiled with these
> switches is linked against libraries compiled without them, could
> there be problems in the produced binary?

No. These compiler options do not change the ABI. All that changes is the use of
registers and temporaries within each function, not how the function deals with
callers, callees, or storage visible to callers or callees.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.