Article View: comp.lang.misc
Article #1773Re: Aggressive optimization
From: Dan Bernstein
Date: Fri, 19 Oct 1990 22:30
Date: Fri, 19 Oct 1990 22:30
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In article <1559@exodus.Eng.Sun.COM> chased@rbbb.Eng.Sun.COM (David Chase) writes: > And, whether you agree with the choice of dialects or not, it's got > nothing to do with "buggy optimizations" -- either global variables > are volatile (i.e, programs execute in serial order), or they aren't. > I believe that is what were discussing in the first place. There's no > way to "debug" the optimization of references to global variables if > those references are intended to be treated as volatile. Fair enough. I'll stop calling the assumption of nonvolatility a bug, though I still consider it a huge mistake. There are lots of other examples of optimizer bugs, so the point stands. ---Dan
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!nih-csl!lhc!adm!cmcl2!kramden.acf.nyu.edu!brnstnd From: brnstnd@kramden.acf.nyu.edu (Dan Bernstein) Newsgroups: comp.lang.misc Subject: Re: Aggressive optimization Message-ID: <6238:Oct1922:30:0690@kramden.acf.nyu.edu> Date: 19 Oct 90 22:30:06 GMT References: <1990Oct18.212844.14728@murdoch.acc.Virginia.EDU> <25336:Oct1823:13:3990@kramden.acf.nyu.edu> <1559@exodus.Eng.Sun.COM> Organization: IR Lines: 14