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Re: [cfg-branch] liveness versus REG_EQUAL notes
- From: Richard Henderson <rth at redhat dot com>
- To: Jan Hubicka <jh at suse dot cz>
- Cc: gcc-patches at gcc dot gnu dot org, gcc-pdo at atrey dot karlin dot mff dot cuni dot cz
- Date: Mon, 21 Jan 2002 14:39:06 -0800
- Subject: Re: [cfg-branch] liveness versus REG_EQUAL notes
- References: <20020117124126.GG13326@atrey.karlin.mff.cuni.cz>
On Thu, Jan 17, 2002 at 01:41:26PM +0100, Jan Hubicka wrote:
> this patch makes flow analysis to optionally mark registers used by
> REG_EQUAL notes as live.
Why? When would this bit be set?
r~