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Date:	Wed, 5 Dec 2007 02:48:07 -0800
From:	"Andrew Pinski" <>
To:	"Jan Beulich" <>
Cc:	Luca <>,,,
Subject: Re: [RFC] [PATCH] 32-bit pointers in x86-64

On 12/5/07, Jan Beulich <> wrote:
> >>> "Andrew Pinski" <> 25.11.07 19:45 >>>
> >On 11/25/07, Luca <> wrote:
> >> 7.1. Add __attribute__((pointer_size(XXX))) and #pragma pointer_size
> >> to allow 64-bit pointers in 32-bit mode and viceversa
> >
> >This is already there, try using __attribute__((mode(DI) )).
> Hmm, unless this is a new feature in 4.3, I can't seem to get this to work on
> either i386 (using mode DI) or x86-64 (using mode SI). Could you clarify?

This only works when you add support for the different pointer modes.
I was saying the middle support for this feature was already there,
just the target support was not.

Also there are issues with mode on pointers for C++, I don't know what
they are though.

Note this feature is used on the s390 target and also the ia64-hpux targets.
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