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From: "G.B." <bauhaus@futureapps.invalid>
Newsgroups: comp.lang.ada
Subject: Re: Everything You Know Is Wrong
Date: Tue, 29 Dec 2015 18:02:11 +0100
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Date: 2015-12-29T18:02:11+01:00
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On 29.12.15 17:31, Dennis Lee Bieber wrote:
> On Tue, 29 Dec 2015 15:16:38 +0100, "Dmitry A. Kazakov"
> <mailbox@dmitry-kazakov.de> declaimed the following:
>
>>
>> The compiler must become an oracle, not just programmer's mind reader,
>> to guess that a subprogram call can be postponed.
>
> 	It sure wouldn't make life easy for someone trying to certify the
> software for civil avionics... WCET would have to assume the calls are
> always invoked, the time would have to be included in the scheduling of
> processing slices, etc.
>

Apart from combinatorial complexity, is there a fundamental
difference? Can postponement or reordering be made analogues
of events that happen at unpredictable points in time?