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Re: Your change of September 11, 1998
- To: Richard Kenner <kenner at vlsi1 dot ultra dot nyu dot edu>
- Subject: Re: Your change of September 11, 1998
- From: Richard Henderson <rth at redhat dot com>
- Date: Mon, 15 Jan 2001 18:26:55 -0800
- Cc: gcc at gcc dot gnu dot org
- References: <10101160152.AA25389@vlsi1.ultra.nyu.edu>
On Mon, Jan 15, 2001 at 08:51:19PM -0500, Richard Kenner wrote:
> As for correctness, all of these registers are call-clobbered, and
> so their contents are being invalidated anyway.
>
> True. I'd forgotten about that.
Actually, this begs the question of why we have call_value at all?
If we distinguished between death via set and death via clobber,
it might matter. Flow doesn't though. Perhaps reorg and its
mildly broken forward-scanning analysis cares?
r~