Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!world!iecc!compilers-sender
From: ressler@cs.cornell.edu (Gene Ressler)
Newsgroups: comp.compilers
Subject: Re: the Evil Effects of Inlining
Keywords: optimize, architecture
Message-ID: <1991May3.052009.14386@cs.cornell.edu>
Date: 3 May 91 05:20:09 GMT
References: <7524@ecs.soton.ac.uk> <1991May1.035622.25021@daffy.cs.wisc.edu> <1991May2.180508.17100@rice.edu>
Sender: compilers-sender@iecc.cambridge.ma.us
Reply-To: ressler@cs.cornell.edu (Gene Ressler)
Organization: Cornell Univ. CS Dept, Ithaca NY 14853
Lines: 12
Approved: compilers@iecc.cambridge.ma.us

These are very good points.  My own experiments: Recently did an
event-driven simulator in C.  Ran gcc -finline-functions -O on the inner
loop module and got about 12% improvement over plain -O on both
SPARCstation and MIPS.  About the same with c89 -Q -O vs c89 -O on an
RS6000 320.  In Lucid Common Lisp code for image processing, however, I've
gotten 50% on a SPARC.  But you'd expect that with the heavy weight of
Common Lisp's function calls.

Gene Ressler
-- 
Send compilers articles to compilers@iecc.cambridge.ma.us or
{ima | spdcc | world}!iecc!compilers.  Meta-mail to compilers-request.