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Re: Branching for GCC 3.0
- To: geoffk at geoffk dot org (Geoff Keating)
- Subject: Re: Branching for GCC 3.0
- From: Brad Lucier <lucier at math dot purdue dot edu>
- Date: Sun, 7 Jan 2001 20:58:38 -0500 (EST)
- Cc: lucier at math dot purdue dot edu (Brad Lucier), gcc at gcc dot gnu dot org
>
> Brad Lucier <lucier@math.purdue.edu> writes:
>
> > Considering how many years Sun's 64-bit Ultrasparc implementation has been
> > out without proper support from gcc, this may be considered an embarrassment.
> >
> > But maybe it is Sun that should be embarrassed; I can't imagine why they
> > haven't thrown even a little bit of money at gcc development to get this
> > situation fixed.
>
> To be fair, they did; I believe that's one of the reasons there is a
> subreg-byte branch at all.
>
> I guess the important thing is that if we release GCC 3.0 without the
> subreg-byte stuff, then it gets integrated right afterwards, so that
> at least it'll be in GCC 3.1.
For the record, I'm most interested in 64-bit support for floating
point code. In 32-bit mode, one can use 16 fp regs; in 64-bit land,
one gets 32 registers, and this can make a big difference.
Brad