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Re: RFA: Ada variable-sized objects, bit_size_type == TImode, and divti3
- From: Neil Booth <neil at daikokuya dot co dot uk>
- To: Richard Henderson <rth at redhat dot com>,Ulrich Weigand <weigand at immd1 dot informatik dot uni-erlangen dot de>,gcc at gcc dot gnu dot org, uweigand at de dot ibm dot com
- Date: Thu, 20 Mar 2003 23:57:30 +0000
- Subject: Re: RFA: Ada variable-sized objects, bit_size_type == TImode, and divti3
- References: <200303202211.XAA14586@faui11.informatik.uni-erlangen.de> <20030320223021.GJ2006@redhat.com>
Richard Henderson wrote:-
> On Thu, Mar 20, 2003 at 11:11:50PM +0100, Ulrich Weigand wrote:
> > Well, I guess I can find out why divti3 doesn't get built. However,
> > the IMO really interesting question is why TImode division should be
> > needed -- calling __divti3 just to make sure that a variable is 8-byte
> > aligned on the stack strikes me as seriously suboptimal ...
>
> Huh? We've computed its size, in bits. We need 67-bit
> arithmetic for this, technically. Not that I actually
> believe that someone is going to create a 2EB dynamically
> sized object...
I dunno, give GCC another 5 years...
Neil.