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Mail Archives: pgcc/1998/09/10/01:44:46

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Message-ID: <19980910024956.64445@cerebro.laendle>
Date: Thu, 10 Sep 1998 02:49:56 +0200
From: Marc Lehmann <pcg AT goof DOT com>
To: Krzysztof Strasburger <strasbur AT chkw386 DOT ch DOT pwr DOT wroc DOT pl>
Cc: beastium <beastium-list AT Desk DOT nl>
Subject: Re: Bug on P6 identified... not good...
Mail-Followup-To: Krzysztof Strasburger <strasbur AT chkw386 DOT ch DOT pwr DOT wroc DOT pl>,
beastium <beastium-list AT desk DOT nl>
References: <m0zG02K-0000FVC AT chkw386 DOT ch DOT pwr DOT wroc DOT pl>
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In-Reply-To: <m0zG02K-0000FVC@chkw386.ch.pwr.wroc.pl>; from Krzysztof Strasburger on Mon, Sep 07, 1998 at 12:04:00PM +0000
X-Operating-System: Linux version 2.1.120 (root AT cerebro) (gcc version pgcc-2.91.57 19980901 (egcs-1.1 release))
Status: RO
Lines: 22

On Mon, Sep 07, 1998 at 12:04:00PM +0000, Krzysztof Strasburger wrote:
> >I just found the option, which corrupted the code on PPro.
> >Unfortunately, it is -ffast-math combined with any non-zero 
> >level of optimization. The code corruption is very rare,
> I just found the subroutine. Preprocessed source and asembler outputs
> appended. This is f2c translated code, so I "preprocessed" it
> again by hand to make it more readable, but the error can be still
> reproduced.

Can you ascertain wether the additional option

"-mieee-fp"

creates correct code? If yes, the next snapshot fixes this.

      -----==-                                              |
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      ---==---(_)__  __ ____  __       Marc Lehmann       +--
      --==---/ / _ \/ // /\ \/ /       pcg AT goof DOT com       |e|
      -=====/_/_//_/\_,_/ /_/\_\                          --+
    The choice of a GNU generation                        |
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