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Re: [PATCH] ia64 segfault on nop in X-slot of MLX bundle

From: James E Wilson <wilson at specifixinc dot com>
To: Jan Beulich <JBeulich at novell dot com>
Cc: binutils at sources dot redhat dot com
Date: Thu, 27 Jan 2005 11:54:36 -0800
Subject: Re: [PATCH] ia64 segfault on nop in X-slot of MLX bundle
References: <s1f4cf5f.038@emea1-mh.id2.novell.com> <1106797178.12995.81.camel@aretha.corp.specifixinc.com>

On Wed, 2005-01-26 at 19:39, James E Wilson wrote:
> nop.x wasn't in the original architecture.  My recollection is that brl
> was added first, and then nop.x was added later, and when that happened,
> we missed the fact that this string needed to change to also allow x
> unit instructions.

Actually, ignore this, I think it is wrong.  It is true though that brl
wasn't in the original specification (and isn't implemented in hardware
on the Itanium1), but we did have movl and thus probably had nop.x from
the beginning.  Anyways, the point here is that we never tried to
prevent nop.x from working, this was just a simple oversight.
-- 
Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com

References:
- [PATCH] ia64 segfault on nop in X-slot of MLX bundle
  - From: Jan Beulich
- Re: [PATCH] ia64 segfault on nop in X-slot of MLX bundle
  - From: James E Wilson

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