Messages in this thread | | | Date | Wed, 5 Dec 2007 02:48:07 -0800 | From | "Andrew Pinski" <> | Subject | Re: [RFC] [PATCH] 32-bit pointers in x86-64 |
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On 12/5/07, Jan Beulich <jbeulich@novell.com> wrote: > >>> "Andrew Pinski" <pinskia@gmail.com> 25.11.07 19:45 >>> > >On 11/25/07, Luca <luca.b633@gmail.com> 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. --Pinski
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