Re: Compiler Optimisation?

"Thomas W. Christopher" <tc@charlie.cns.iit.edu>
10 Dec 1998 19:26:18 -0500

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| List of all articles for this month |
From: "Thomas W. Christopher" <tc@charlie.cns.iit.edu>
Newsgroups: comp.lang.ada,comp.compilers
Date: 10 Dec 1998 19:26:18 -0500
Organization: Illinois Institute of Technology
References: 98-12-010
Keywords: optimize

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

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