From: Eric Botcazou <ebotcazou@adacore.com>
To: Jeff Law <law@redhat.com>
Cc: gcc-patches@gcc.gnu.org, Robert Suchanek <Robert.Suchanek@imgtec.com>
Subject: Re: [RFC][PATCH] Preferred rename register in regrename pass
Date: Thu, 17 Sep 2015 21:28:00 -0000 [thread overview]
Message-ID: <1873235.jj9IXD50yB@polaris> (raw)
In-Reply-To: <55FAF1F1.3070607@redhat.com>
> I'll let Bernd comment on the patch itself. But I would say that if
> you're setting up cases where we can tie the source/dest of an extension
> together, then it's a good thing. It'll cause more of them to turn into
> NOPs and it'll make the redundant extension elimination pass more
> effective as well.
Not if you do it in regrename though, as it's run very late in the pipeline.
If you want to make REE more effective, this would need to be done during RA.
--
Eric Botcazou
next prev parent reply other threads:[~2015-09-17 21:26 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-17 14:40 Robert Suchanek
2015-09-17 17:11 ` Jeff Law
2015-09-17 21:28 ` Eric Botcazou [this message]
2015-09-18 15:29 ` Bernd Schmidt
2015-10-09 7:10 ` Robert Suchanek
2015-10-09 11:06 ` Bernd Schmidt
2015-10-09 11:20 ` Robert Suchanek
2015-11-09 13:32 ` Robert Suchanek
2015-11-09 16:30 ` Bernd Schmidt
2015-11-09 17:01 ` Robert Suchanek
2015-11-10 11:21 ` Christophe Lyon
2015-11-10 11:41 ` Robert Suchanek
2015-11-10 16:22 ` Christophe Lyon
2015-11-10 17:43 ` James Greenhalgh
2015-11-10 22:33 ` Robert Suchanek
2015-11-10 22:57 ` Bernd Schmidt
2015-11-11 0:06 ` Robert Suchanek
2015-11-11 8:50 ` Robert Suchanek
2015-11-12 7:47 ` Christophe Lyon
2015-11-12 12:57 ` Robert Suchanek
2015-11-10 12:10 ` Bernd Schmidt
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