RE: Fixed-point branch?

["Fu, Chao-Ying" <fu at mips dot com>]

> -----Original Message-----
> From: Mark Mitchell [mailto:mark@codesourcery.com]
> Sent: Thursday, May 31, 2007 9:05 AM
> To: Joseph S. Myers
> Cc: Fu, Chao-Ying; Richard Henderson; GCC
> Subject: Re: Fixed-point branch?
> 
> 
> Joseph S. Myers wrote:
> 
> > I haven't examined it.  When the branch maintainers 
> consider it ready to 
> > merge I hope a proposal along the lines of the DFP one 
> > <http://gcc.gnu.org/ml/gcc/2005-11/msg01128.html> will be 
> posted (see also 
> > subsequent discussion in that thread, and on the submitted patches).
> 
> I would like to avoid the situation in which Chao-Ying et. 
> al. work hard
> to come up with a plan, factor the patches, etc., and then we decide
> that the code is not going to be ready for 4.3.  I had 
> originally pushed
> this work back to 4.4, but as 4.3's been delayed, perhaps there's an
> opportunity for it in 4.3.  If, however, the work isn't 
> ready, then I'd
> rather not take up a lot of Chao-Ying's time now; instead, we can just
> wait for 4.4 to get closer.
> 
> At the same time, of course, there's not much point in you 
> investing in
> looking at the branch if Chao-Ying doesn't think it's ready.
> 
> So, let's do this:
> 
> 1. Chao-Ying, would you please work on any remaining issues that you
> feel need resolution.  Then, post your merge plan, ala DFP.

  Yes.  We will work on remaining issues and post our merge plan.

> 
> 2. Joseph, at that point, would you please invest a a little 
> bit of time
> (a couple of hours) to look at the branch, and provide some feedback?
> Please provide comments to Chao-Ying, and also please let me know
> whether you think the work is nearly ready for inclusion?

  Maybe you could first check if new machine modes, new TREE structures
(a saturating bit, fixed-point type, fixed-point constant), 
new RTL structures (fixed-point constant and operators) are ok.

  Thanks a lot!

Regards,
Chao-ying