This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]

Re: GCC proposal for "@" asm constraint

To: Richard Henderson <rth at cygnus dot com>
Subject: Re: GCC proposal for "@" asm constraint
From: Andrea Arcangeli <andrea at suse dot de>
Date: Tue, 19 Sep 2000 20:28:28 +0200
Cc: Jamie Lokier <egcs at tantalophile dot demon dot co dot uk>, John Wehle <john at feith dot com>, gcc at gcc dot gnu dot org, kuznet at ms2 dot inr dot ac dot ru, linux-kernel at vger dot kernel dot org, torvalds at transmeta dot com
References: <200009182353.TAA26001@jwlab.FEITH.COM> <20000919031831.E16004@athlon.random> <20000919104004.A19788@pcep-jamie.cern.ch> <20000919163216.E30539@athlon.random> <20000919102305.A26290@cygnus.com>

On Tue, Sep 19, 2000 at 10:23:05AM -0700, Richard Henderson wrote:
> On Tue, Sep 19, 2000 at 04:32:16PM +0200, Andrea Arcangeli wrote:
> > Wrong: it's really loading the _address_.
> [...]
> >  80483f5:       a1 a4 95 04 08          mov    0x80495a4,%eax
> >                    ^^^^^^^^^^^                 ^^^^^^^^^
> 
> No, that's an absolute memory load.  If we were loading
> the address, there'd be a '$' before that number.

I see. So Jamie was right and we reproduced a case of miscompilation.

Andrea

References:
- Re: GCC proposal for "@" asm constraint
  - From: John Wehle
- Re: GCC proposal for "@" asm constraint
  - From: Andrea Arcangeli
- Re: GCC proposal for "@" asm constraint
  - From: Jamie Lokier
- Re: GCC proposal for "@" asm constraint
  - From: Andrea Arcangeli
- Re: GCC proposal for "@" asm constraint
  - From: Richard Henderson

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]