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Re: Possible CSE quirk involving SUBREG on the i386
- To: "David S. Miller" <davem at dm dot cobaltmicro dot com>, rth at cygnus dot com
- Subject: Re: Possible CSE quirk involving SUBREG on the i386
- From: Richard Henderson <rth at cygnus dot com>
- Date: Tue, 30 Jun 1998 22:45:34 -0700
- Cc: law at cygnus dot com, john at feith dot com, egcs at cygnus dot com
- References: <199806300534.BAA27602@jwlab.FEITH.COM> <15831.899190753@hurl.cygnus.com> <19980630151514.B1990@dot.cygnus.com> <199807010318.UAA26631@dm.cobaltmicro.com>
- Reply-To: Richard Henderson <rth at cygnus dot com>
On Tue, Jun 30, 1998 at 08:18:19PM -0700, David S. Miller wrote:
> Right, my current theory is that combine likes to look at things "3 at
> a time" to determine candidates. For some of the cases I was trying
> to get to work, it would need to look at things "4 at a time".
Well, thats what I thought too, except if it had properly been
looking at the subregs, 2 at a time might have been enough.
r~