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Re: RFA: Ada variable-sized objects, bit_size_type == TImode, and divti3
- From: Richard Henderson <rth at redhat dot com>
- To: Ulrich Weigand <weigand at immd1 dot informatik dot uni-erlangen dot de>
- Cc: gcc at gcc dot gnu dot org, uweigand at de dot ibm dot com
- Date: Thu, 20 Mar 2003 14:30:21 -0800
- Subject: Re: RFA: Ada variable-sized objects, bit_size_type == TImode, and divti3
- References: <200303202211.XAA14586@faui11.informatik.uni-erlangen.de>
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...
r~