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Re: [avr-gcc-list] Extremly confusing behaviour... (Suspect compiler?, o

From: Joerg Wunsch
Subject: Re: [avr-gcc-list] Extremly confusing behaviour... (Suspect compiler?, optimization error?)
Date: Thu, 15 May 2003 10:26:31 +0200 (MET DST)

Michael Kristensen <address@hidden> wrote:

> I haven't followed the thread, but can recognize the above
> behavior. The current (and a couple of months back) version of
> avr-gcc is broken. Any optimization setting greater than -O0 will in
> some cases generate non-working code; a real timekiller (from
> experience)!

Please don't make unfounded claims.  Advising people to use -O0 is
nonsense, in particular for a RISC-like architecture.

It looks as if Mike has really found a compiler bug (see remainder of
thread), but that doesn't justify it to claim complete brokeness.
Most of the Ā»optimizer bugsĀ« are still located between chair and
keyboard :-), from experience...

J"org Wunsch                                           Unix support engineer
address@hidden        http://www.interface-systems.de/~j/

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