Fixed-point branch?

[Fu, Chao-Ying]

Mark Mitchell wrote:

> >> 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.
> 
> I had not realized that there were so many changes outside of the C
> front end.  I think that it does indeed make sense to have 
> someone look
> at some of that stuff.  I will be happy to take a look.  Will 
> you please
> send me a patch (and CC the list) for the middle-end changes?  It
> doesn't have to apply to mainline cleanly, but that will give 
> me -- and
> people who know better than I! -- a chance to look over the
> infrastructure changes.
> 

  I attached a diff file for 14 files of the new structures
and documents.  You and other maintainers are welcome to
check it.  Thanks a lot!

Note: 14 files are =>
genmodes.c mode-classes.def machmode.def machmode.h tree.def tree.h
tree.c rtl.def rtl.h rtl.c fixed-value.h fixed-value.c
doc/extend.texi doc/rtl.texi doc/c-tree.texi doc/md.texi

Regards,
Chao-ying
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