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Re: is REG_WAS_0 usable in final pass
- To: Denis Chertykov <denisc at overta dot ru>
- Subject: Re: is REG_WAS_0 usable in final pass
- From: Bernd Schmidt <bernds at redhat dot com>
- Date: Tue, 5 Jun 2001 16:14:55 +0100 (BST)
- cc: <gcc at gcc dot gnu dot org>
On 5 Jun 2001, Denis Chertykov wrote:
> How about REG_WAS_0 ?
> Must I disable all REG_WAS_0 based optimizations in avr port ?
If we remove the note, yes. Do you have any data regarding how often
your optimization triggers and what kinds of improvements you get
from it?
Bernd