Register renaming pass in gcc

[Richard Henderson]

On Thu, Apr 20, 2000 at 05:23:30PM +0000, Stan Cox wrote:
> One example of where it helps is to rename predicate registers to
> improve predication.  

Yes, but the question remains -- why is it being done so late?

It seems clear that it must happen before sched2 (and before the last
if-conversion pass, once that code is in) to be of any use at all.

I'm not sure why I didn't notice this before...


r~