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Mail Archives: pgcc/1998/09/10/01:44:52

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Message-ID: <19980910025449.48146@cerebro.laendle>
Date: Thu, 10 Sep 1998 02:54:49 +0200
From: Marc Lehmann <pcg AT goof DOT com>
To: Vincent Diepeveen <diep AT xs4all DOT nl>, beastium-list AT Desk DOT nl
Subject: Re: -O1 -ffast-math bug on Pentium Pro
Mail-Followup-To: Vincent Diepeveen <diep AT xs4all DOT nl>, beastium-list AT Desk DOT nl
References: <3 DOT 0 DOT 32 DOT 19980908180857 DOT 009d99b0 AT xs4all DOT nl>
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In-Reply-To: <3.0.32.19980908180857.009d99b0@xs4all.nl>; from Vincent Diepeveen on Tue, Sep 08, 1998 at 06:09:05PM +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 Tue, Sep 08, 1998 at 06:09:05PM +0000, Vincent Diepeveen wrote:
> Or does this not matter for the bug?
> 
> >Here is the asembler output of pgcc-1.1a (fmbug, with fast-math)
> 
> Who can read such unreadable assembler outputs?

hmm, how do you identify the problem? finding a bug in a diff (correct ->
incorrect) seems easier to me than wading through every line of assembly
code ;)

For example, in the diff you can easily see that there are missing
cc0-setting instructions.. (although I admit I can't read x86-fpu code very
well).

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

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