New register allocator branch created

[Daniel Berlin]

On Sun, 28 Jan 2001, Diego Novillo wrote:

> On Sun, 28 Jan 2001, Daniel Berlin wrote:
>
> > Quick note, i fixed a few bugs in the new allocator that should allow it
> > to compile libgcc on x86.
> >
> Dan,
>
> I tried doing a SPEC run with the new branch but none of the SPEC
> programs build (x86). I'm getting various spill failures and
> unrecognizable insns.
>
> If you want I could provide the specific failures, or if you can
> give me a couple of pointers into your implementation I can try
> and hunt them down.

It's unlikely I can fix them before i rip the spill code insertion from
reload.
They aren't bugs in the allocator (for the most part. unrecognizable
insns probably are), rather, we're getting slapped by reload.

But don't worry, once i do that, i'll be implementing live range
splitting properly when we need to spill, among other things, which should
really help x86.


--Dan