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Re: discouraging register use
- From: Richard Earnshaw <rearnsha at gcc dot gnu dot org>
- To: DJ Delorie <dj at redhat dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Tue, 04 Jan 2005 14:18:04 +0000
- Subject: Re: discouraging register use
- Organization: GNU
- References: <200412302354.iBUNsiBH002125@greed.delorie.com>
On Thu, 2004-12-30 at 23:54, DJ Delorie wrote:
>
> [(set (match_operand:SI 0 "" "c,c,?m,?m")
> (plus:SI (match_operand:SI 1 "" "0,0,0,0")
> (match_operand:SI 1 "" "c,?m,c,?m")))]
Have you tried using '*' to hide 'm' from register preferencing?
R.