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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 »optimizer bugs« are still located between chair and
keyboard :-), from experience...
--
J"org Wunsch Unix support engineer
address@hidden http://www.interface-systems.de/~j/
- Re: [avr-gcc-list] Extremly confusing behaviour... (Suspect compiler?, optimization error?), (continued)
- Re: [avr-gcc-list] Extremly confusing behaviour... (Suspect compiler?, optimization error?), Joerg Wunsch, 2003/05/14
- Re: [avr-gcc-list] Extremly confusing behaviour... (more detailed explanation of error, believe me its not a volatile thing), Mike Panetta, 2003/05/14
- Re: [avr-gcc-list] Extremly confusing behaviour... (more detailedexplanation of error, believe me its not a volatile thing), Larry Barello, 2003/05/14
- Re: [avr-gcc-list] Extremly confusing behaviour... (more detailedexplanation of error, believe me its not a volatile thing), Mike Panetta, 2003/05/14
- Re: [avr-gcc-list] Extremly confusing behaviour... (more detailed explanation of error, believe me its not a volatile thing), E. Weddington, 2003/05/14
- Re: [avr-gcc-list] Extremly confusing behaviour... (more detailed explanation of error, believe me its not a volatile thing), Mike Panetta, 2003/05/14
- Re: [avr-gcc-list] Extremly confusing behaviour... (more detailedexplanation of error, believe me its not a volatile thing), David Brown, 2003/05/16
Re: [avr-gcc-list] Extremly confusing behaviour... (Suspect compiler?, optimization error?), E. Weddington, 2003/05/14
Re: [avr-gcc-list] Extremly confusing behaviour... (Suspect compiler?, optimization error?), Denis Chertykov, 2003/05/14