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From: Paolo Carlini <paolo.carlini@oracle.com>
To: Jakub Jelinek <jakub@redhat.com>
Cc: gcc-patches@gcc.gnu.org
Subject: Re: [RFC, WIP] tree-ssa-strlen optimization pass
Date: Fri, 02 Sep 2011 18:42:00 -0000	[thread overview]
Message-ID: <4E612381.8080904@oracle.com> (raw)
In-Reply-To: <20110902182314.GV2687@tyan-ft48-01.lab.bos.redhat.com>

Hi,
> I'm fairly sure it is much less common than the narrow versions,
> we don't even handle wprintf and wscanf attributes.
I know. Actually, the reason I decided to say something, is that I 
noticed a few times in the past this "inequality" between char and 
wchar_t. Frankly, I instinctively think it's unfortunate, if asked, I 
would rather recommend systematically working on *pairs* of 
optimizations. I don't know if somebody ever discussed this idea in the 
open for GCC, as a matter of "policy" so to speak, but I also don't know 
what the other compilers are doing, I don't have much more to say at the 
moment. I hope somebody will give the general idea a thought.

Thanks,
Paolo.

  reply	other threads:[~2011-09-02 18:42 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-02 16:51 Jakub Jelinek
2011-09-02 17:15 ` Paolo Carlini
2011-09-02 18:23   ` Jakub Jelinek
2011-09-02 18:42     ` Paolo Carlini [this message]
2011-09-05  8:55 ` Richard Guenther
2011-09-05  9:41   ` Jakub Jelinek
2011-09-05  9:51     ` Richard Guenther
2011-09-05 18:45       ` Jakub Jelinek

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