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Re: Unreachable code warning conflicts with optomisation

From: Yves Rutschle <y dot rutschle at indigovision dot com>
To: David Brown <david at westcontrol dot com>
Cc: crossgcc at sources dot redhat dot com
Date: Fri, 26 Sep 2003 12:12:19 +0100
Subject: Re: Unreachable code warning conflicts with optomisation
References: <137c01c38413$c2e098d0$1100a8c0@david1700>

On Fri, Sep 26, 2003 at 11:51:30AM +0200, David Brown wrote:
> The optomiser will combine the "sendNewline()" calls, which is good.
> However, two of the three calls are now flagged as "unreachable", which is
> not the case.

I can't reproduce this at all, using your code and -Wall on
gcc 2.95.4. What version do you use and how do you compile
it?
 
> I suppose this problem is a general gcc one rather than a crossgcc issue,
> but maybe someone here has come across this and has some ideas?  Or should I
> ask on a gcc list (I don't know if it really counts as a "bug" for a bug
> report)?

IMO it's definitely a gcc bug: it warns you of something
that really isn't there.

/Y

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