From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=0.7 required=5.0 tests=BAYES_05,HEADER_SPAM, INVALID_MSGID autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,32898cca6ca4143e X-Google-Attributes: gid103376,public X-Google-Thread: ff499,32898cca6ca4143e X-Google-Attributes: gidff499,public From: dewarr@my-dejanews.com Subject: Re: Compiler Optimisation? Date: 1998/12/13 Message-ID: <98-12-024@comp.compilers>#1/1 X-Deja-AN: 421863383 Sender: johnl@iecc.com References: <98-12-010@comp.compilers> <98-12-016@comp.compilers> X-submission-address: compilers@iecc.com X-moderator-address: compilers-request@iecc.com Organization: Deja News - The Leader in Internet Discussion Keywords: optimize Newsgroups: comp.lang.ada,comp.compilers X-FAQ-and-archives: http://www.iecc.com/compilers Date: 1998-12-13T00:00:00+00:00 List-Id: Ray Dillinger wrote: > The speed-up due to the peephole stage in my experience runs between > ten and twenty percent of overall speed -- Although, of course, it > depends on what you put into the "peephole" stage. ... This is misleading. Many compilers do MUCH more extensive peephole optimization. In particular gcc gets a FAR more significant improvement from peephole optimization.