regrename_optimize problem

Richard Henderson
Sat Jul 21 18:12:00 GMT 2001

On Fri, Jul 20, 2001 at 02:32:58AM +0200, Roman Zippel wrote:
> The problems is that regrename_optimize tries to rename a data register
> into a floating point register.

Not having looked into this carefully yet, I suspect a problem
with the constraints in the md file.  Certainly nothing like your
patch should ever be required.

The uses HARD_REGNO_RENAME_OK on ia64 is primarily for games
we play with the register stack behind the back of the register
allocator.  I'm not sure what's going on with c4x.


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