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From: Bernd Schmidt <bernds_cb1@t-online.de>
To: Jakub Jelinek <jakub@redhat.com>, Richard Biener <rguenther@suse.de>
Cc: gcc-patches@gcc.gnu.org
Subject: Re: [PATCH] Fix PR70484, RTL DSE using wrong dependence check
Date: Fri, 01 Apr 2016 15:17:00 -0000	[thread overview]
Message-ID: <56FE90DE.8000405@t-online.de> (raw)
In-Reply-To: <20160401150549.GY3017@tucnak.redhat.com>

On 04/01/2016 05:05 PM, Jakub Jelinek wrote:
> with my usual pair of rtl,yes checking bootstraps/regtests (x86_64-linux
> and i686-linux, former one with ada, latter without), both without your
> patch and with the patch.
> Without the patch got 66555 successful replace_reads, with your patch
> only 65971, that is 1% difference.  I guess that is acceptable level,
> though for GCC 7 we should try to improve that (either at the GIMPLE level,
> or do something better at the RTL level).

I was also running before/after tests on my set of .i files, and so far 
the effect seems negligible.


Bernd

  reply	other threads:[~2016-04-01 15:17 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-01  9:08 Richard Biener
2016-04-01  9:19 ` Jakub Jelinek
2016-04-01  9:44   ` Richard Biener
2016-04-01 15:06     ` Jakub Jelinek
2016-04-01 15:17       ` Bernd Schmidt [this message]
2016-04-01 15:39     ` Jeff Law
2016-04-01 15:26 ` Bernd Schmidt
2016-04-01 17:25   ` Richard Biener
2016-04-04  9:24   ` Richard Biener
2016-04-04  9:36     ` Richard Biener
2016-04-04  9:50     ` Jakub Jelinek
2016-04-05  9:06       ` Richard Biener
2016-04-05  9:18         ` Jakub Jelinek
2016-04-05  9:48           ` Richard Biener
2016-04-05  9:51             ` Jakub Jelinek

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