Sender:	jkf AT user DOT jkf
Message-ID:	<3A3A48DB.5E8947E4@penguinpowered.com>
Date:	Fri, 15 Dec 2000 17:37:47 +0100
From:	Martijn <jkf AT penguinpowered DOT com>
X-Mailer:	Mozilla 4.76 [en] (X11; U; Linux 2.2.16-22smp i686)
X-Accept-Language:	en
MIME-Version:	1.0
To:	pgcc AT delorie DOT com
Subject:	Re: pgcc generates invalid asm code
References:	<Pine DOT SGI DOT 4 DOT 21 DOT 0012151328430 DOT 8219194-100000 AT paju DOT oulu DOT fi>
Reply-To:	pgcc AT delorie DOT com

Tuukka Toivonen wrote:

> Problem: Pentium GCC generates assembly like the following:
>
> .L868:
>         movl 120(%esp),%eax
>         addl %edx,%eax
>         movd %eax,%mm0
>         pslld $4,%mm0
>         <84>,<AD><FB>
>         movd %eax,%mm1
>         psubd %mm1,%mm0
>         movd %mm0,%edx
>         sall $3,%edx
>         testl %ebp,%ebp
>         je .L938
>
> and as you can see there are invalid characters there. And the assembler
> complains, of course (ie. there are ASCII characters #84, #AD and #FB).
>
> Most files in the program were compiled successfully, but this file
> produced the above string <84>,<AD><FB> twice in the 7000 line asm file.
>
> It happened only when I tried using the -mmx switch.
>
> Programs I'm using:
>
> GNU assembler 2.9.5
>  774574 Nov 17 14:20 gcc-2.95.2-pgcc-2.95.3.diff
>  12885815 Dec  7 14:22 gcc-2.95.2.tar.gz
>
> Command line:
>
> -s -O3 -fomit-frame-pointer -Wall -mpentiumpro -march=pentiumpro
> -malign-functions=4 -funroll-loops  -fexpensive-optimizations
> -malign-double -fschedule-insns2 -mwide-multiply -mmx
>
> Red Hat 6.2 equivalent system.
>
> By the way, the same happens also with Athlon GCC (which is patch against
> the pgcc).

I had the same problem when using -mmx, not using -mmx "solved" the problem

- Raw text -