gcc to produce no code?

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#10

From: Jo Blishen
Date: Fri, 30 Oct 1992 13:09

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Does anybody know of a way to get gcc to produce no code.  Specifically
gcc-1.42 on a Sun4.  I know about throwing the code away (e.g. >/dev/null) -
I would rather that code generation just doesn't happen.

We want to do something bizarre for our first year students - running a first 
pass with the optimiser on to get "uninitialised variable" warnings (the first 
pass producing no code) and then a second pass without -O which produces code.  
This is so that ups doesn't deny the existence of half the variables when the
students are debugging their code.

Jo
-- 
Jo Blishen                         
LFCS, Dept. of Computer Science    Email: jtb@dcs.ed.ac.uk
University of Edinburgh            Tel:   (+44) (0)31-650-5192
Edinburgh EH9 3JZ, UK.             Fax:   (+44) (0)31-667-7209

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Path: arc1-ca.pugleaf.net!sparky!uunet!pipex!unipalm!uknet!edcastle!dcs.ed.ac.uk!jtb
From: jtb@dcs.ed.ac.uk (Jo Blishen)
Newsgroups: gnu.gcc.help
Subject: gcc to produce no code?
Keywords: gcc-1.42 -O
Message-ID: <Bwxr79.I0x@dcs.ed.ac.uk>
Date: 30 Oct 92 13:09:08 GMT
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Organization: Department of Computer Science, University of Edinburgh
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