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Re: What to do with new-ra for GCC 4.0
On Tue, 2005-01-04 at 10:46 -0500, David Edelsohn wrote:
> If one cannot assign registers, the next important decisions are
> what, how, and where to spill. new-ra focussed on optimal choice of
> registers, but did not pay enough attention to register spilling.
>
This is true (we did do some smarter spilling, see interference region
spilling), but in part it's because reload would spill a lot of things
anyway (and it has no smart spill placement stuff), until pre-reload
came along.
> David
>