regclass FLOAT_INT_REGS on x86/graph coloring allocator

[Daniel Berlin]

On Sun, 4 Feb 2001, Michael Matz wrote:

> Hi,
>
> On Sat, 3 Feb 2001, Daniel Berlin wrote:
> >
> > Actually, the only thing that ties mine to registers is that we use
> > FIRST_PSEUDO_REGISTER in a few places, max_reg as a size limit in some
> > places, etc. I'll move it to do it allocation based on defs (as
> > opposed to registers) tonight.
>
> You can't use defs as base for the conflicting nodes, you really need
> webs. Or you use SSA form, where of course defs and webs are the same.
We can't, without avoiding some renames, use SSA that late.

I'll use webs.

>
>
> Ciao,
> Michael.
>