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From: ncohen@watson.ibm.com (Norman H. Cohen)
Subject: Re: Real OO
Date: 1996/04/09
Message-ID: <4ke84h$iiv@watnews1.watson.ibm.com>#1/1
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references: <65lDeVZF3RB@herold.franken.de> <DpBw9w.Mru@assip.csasyd.oz>
 <4kbl7r$1i8@gaia.ns.utk.edu>
organization: IBM T.J. Watson Research Center
reply-to: ncohen@watson.ibm.com
newsgroups: comp.lang.eiffel,comp.lang.ada,comp.object
Date: 1996-04-09T00:00:00+00:00
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In article <4kbl7r$1i8@gaia.ns.utk.edu>, mbk@caffeine.engr.utk.edu
(Matt Kennel) writes: 

|> My experience with Sather numerical classes is that the cost of indirect
|> calls is not the actual indirection, but the lost opportunities for
|> inlining.

Plus the opportunities that arise from cross-procedural analysis,
for compilers that perform such analysis for statically bound
subprograms.

(But remember, in counting the cost of the actual indirection, to count
machine cycles rather than instruction path length.  Indirect function
calls can cause expensive I-cache misses on some architectures.)

--
Norman H. Cohen    ncohen@watson.ibm.com