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Re: reload vs adds with clobbers
- From: DJ Delorie <dj at redhat dot com>
- To: kenner at vlsi1 dot ultra dot nyu dot edu
- Cc: gcc at gcc dot gnu dot org
- Date: Fri, 30 May 2003 18:21:14 -0400
- Subject: Re: reload vs adds with clobbers
- References: <10305302225.AA26084@vlsi1.ultra.nyu.edu>
> What's "right"? If an addition needs a scratch register (it was said
> that it had a CLOBBER), the only way to produce that is via the secondary
> reloads. The approach above sounds exactly correct.
It needs to clobber the carry, nothing else. But I see your point.