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From: Bill Findlay <findlaybill@blueyonder.co.uk>
Newsgroups: comp.arch
Subject: Re: is Vax addressing sane today
Date: Tue, 24 Sep 2024 18:38:49 +0100
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On 24 Sep 2024, Kent Dickey wrote
(in article <vcumu9$38iv2$1@dont-email.me>):

> In article<vcpidc$29e51$1@dont-email.me>,
> Thomas Koenig <tkoenig@netcologne.de>  wrote:
> > Kent Dickey <kegs@provalid.com> schrieb:
> >
> > > Trapping on overflow is basically useless other than as a debug aid,
> > > which clearly nobody values.
> >
> > I disagree.
> >
> > Look at the sanitizer libraries, which insert runtime checks for
> > integer overflow - having less overhead for these would definitely
> > be a plus.
> >
> > See https://gcc.gnu.org/onlinedocs/gcc/Instrumentation-Options.html
> > or
> > https://github.com/google/sanitizers/wiki/AddressSanitizerFlags#run-time-fla
> > gs
> > .
>
> Not valuing something just means no one is spending a lot of time/effort
> on it. Decimal math is not valued--but you can still do it, it just
> has no special instructions on most architectures to make it fast/easy.
> And as I've pointed out, trapping on integer overflow is clearly not
> valued--on x86, where INTO exists, GCC and Clang do not use it.

To quote Nick: sigh.
-- 
Bill Findlay