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From: "Thomas W. Christopher" <tc@charlie.cns.iit.edu>
Subject: Re: Compiler Optimisation?
Date: 1998/12/10
Date: 1998-12-10T00:00:00+00:00	[thread overview]
Message-ID: <98-12-020@comp.compilers> (raw)
In-Reply-To: 98-12-010@comp.compilers

How much faster does optimized code run for different optimizations?

I believe Daniel Bidwell ( http://www2.andrews.edu/~bidwell/ ) worked
on that question in his PhD dissertation, as well as how much do the
optimizations cost.

As I recall, he found that "folding," performing constant arithmetic at
compile time, not only makes the compiled code run faster, but also the
compiler.

--
Thomas W. Christopher -- tc@charlie.cns.iit.edu , tc@toolsofcomputing.com
Principal, Tools of Computing LLC. -- http://www.toolsofcomputing.com
Associate Prof., Illinois Inst. of Tech. -- http://www.iit.edu/~tc




  parent reply	other threads:[~1998-12-10  0:00 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1998-12-06  0:00 Compiler Optimisation? Iain Bate
1998-12-07  0:00 ` Marin David Condic
1998-12-10  0:00 ` Ray Dillinger
1998-12-13  0:00   ` dewarr
1998-12-18  0:00     ` Ray Dillinger
1998-12-18  0:00     ` Stefan Monnier
1998-12-10  0:00 ` Thomas W. Christopher [this message]
1998-12-13  0:00   ` John F Carr
1998-12-13  0:00   ` Mike Albaugh
1998-12-13  0:00 ` Andy Gaynor
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