Subject: Re: bug#42147: 28.0.50; pure vs side-effect-free, missing optimizations?

From: Paul Eggert <[email-masked]>
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.