Article View: comp.lang.c.moderated
Article #2280Re: use of the break statement
From: Andrew Dalgleish
Date: Thu, 14 Mar 1996 13:39
Date: Thu, 14 Mar 1996 13:39
28 lines
1703 bytes
1703 bytes
Andrew Dalgleish wrote: > Optimizers aren't all they're cracked up to be. > An article in a recent magazine (I don't have it at hand - I'll=20 > see if I can find it) compare the optimization of several commercial > compilers. Most compilers did very poorly. I don't think any of them=20 > could optimize a loop built entirely with if's and goto's, yet all=20 > the common loop constructs can be simulated this way. I have found the magazine. In the December 1995 issue of C/C++ Users Journal is an article entitled "Another Slap at Lowly goto". The authors compared the assembler output of 9 compilers, only Microsoft C 7.0 optimizes loops built from goto's. All the compilers did worse than I would have expected. The authors came to the wrong conclusion - don't criticize the compiler, stay away from goto's. IMO this amounts to shooting the messenger. -- Andrew Dalgleish Senior Software Engineer Axon Research, Pty Ltd 6 Wallace Ave Toorak, VIC 3142 AUSTRALIA Tel: +61-3-9826-5538 Fax: +61-3-9824-0083 Email: andrewd@axonet.com.au
Technical Details
Message-ID:
<4i97ht$8gb@solutions.solon.com>Path:
arc1-ca.pugleaf.net!solon.com!not-for-mailReferences:
<4gfcl7$2ls@solutions.solon.com> <4gnbcp$biq@solutions.solon.com> <4h81gh$aql@solutions.solon.com> <4h9ml2$gub@solutions.solon.com> <4hqedf$1m0@solutions.solon.com> <4i2k0n$8jd@solutions.solon.com>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!solon.com!not-for-mail From: Andrew Dalgleish <andrewd@axonet.com.au> Newsgroups: comp.lang.c.moderated Subject: Re: use of the break statement Date: 14 Mar 1996 07:39:09 -0600 Organization: Axon Research, Pty Ltd Sender: clc@solutions.solon.com Approved: clc@solutions.solon.com Message-ID: <4i97ht$8gb@solutions.solon.com> References: <4gfcl7$2ls@solutions.solon.com> <4gnbcp$biq@solutions.solon.com> <4h81gh$aql@solutions.solon.com> <4h9ml2$gub@solutions.solon.com> <4hqedf$1m0@solutions.solon.com> <4i2k0n$8jd@solutions.solon.com> NNTP-Posting-Host: solutions.solon.com X-Mailer: Mozilla 2.0 (Win95; I)