i386/x86_64 HARD_REGNO_NREGS/ fix

Richard Henderson rth@redhat.com
Sun Apr 8 12:31:00 GMT 2001


On Sun, Apr 08, 2001 at 04:59:07PM +0200, Jan Hubicka wrote:
> Can I add following testcase?

Yes.

> Whats about elliminating all clobber insns after reload?

No.  That will badly affect post-reload register allocation
in peep2 and regrename.

> Has anyone considered possibility to teach flow about
> recognizing such per-partes loads?

Thought about, but done nothing.

> 	* i386.h (HARD_REGNO_NREGS): Handle properly TF and TCmodes on 64bit;
> 	handle properly complex values.
> 	(CLASS_MAX_NREGS): Likewise; update comment.

Ok.


r~



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