Re: Optimization techniques

"Rick C. Hodgin" <rick.c.hodgin@gmail.com>
Fri, 19 Apr 2019 16:11:04 -0700 (PDT)

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[3 earlier articles]
Re: Optimization techniques rick.c.hodgin@gmail.com (Rick C. Hodgin) (2019-04-18)
Re: Optimization techniques haberg-news@telia.com (Hans Aberg) (2019-04-19)
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Re: Optimization techniques rick.c.hodgin@gmail.com (Rick C. Hodgin) (2019-04-19)
Re: Optimization techniques gneuner2@comcast.net (George Neuner) (2019-04-19)
Re: Optimization techniques DrDiettrich1@netscape.net (Hans-Peter Diettrich) (2019-04-20)
Re: Optimization techniques rick.c.hodgin@gmail.com (Rick C. Hodgin) (2019-04-19)
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Re: Optimization techniques david.brown@hesbynett.no (David Brown) (2019-04-23)
Re: Optimization techniques david.brown@hesbynett.no (David Brown) (2019-04-23)
Re: Optimization techniques rick.c.hodgin@gmail.com (Rick C. Hodgin) (2019-04-24)
[24 later articles]
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From: "Rick C. Hodgin" <rick.c.hodgin@gmail.com>
Newsgroups: comp.compilers
Date: Fri, 19 Apr 2019 16:11:04 -0700 (PDT)
Organization: Compilers Central
References: 19-04-004 19-04-012
Injection-Info: gal.iecc.com; posting-host="news.iecc.com:2001:470:1f07:1126:0:676f:7373:6970"; logging-data="93718"; mail-complaints-to="abuse@iecc.com"
Keywords: design, optimize
Posted-Date: 19 Apr 2019 19:12:41 EDT
In-Reply-To: 19-04-012

On Friday, April 19, 2019 at 7:04:51 PM UTC-4, Hans-Peter Diettrich wrote:
> Am 17.04.2019 um 15:42 schrieb Rick C. Hodgin:
> > Are there resources someone can point me to for learning more about
> > time-honored, long-established, safely applied, optimization
> > techniques for a C/C++ like language?
>
> I'm always a bit sceptic when C/C++ and "safe" occur in the same
> sentence. AFAIR a C compiler is allowed to ignore parentheses when
> reordering expressions, what can lead to numeric instabilities.


In my language that is not allowed. The order of operations,
as dictated by the developer, are honored. A feature has to
be enabled to allow that kind of reordering.


My language focuses on data correctness, not speed. Computers
today are fast enough for 99% of general purpose apps. It's
time for them to mature into data correctness in all areas.


--
Rick C. Hodgin


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