From: Pierre-Marie de Rodat <derodat@adacore.com>
To: David Edelsohn <dje.gcc@gmail.com>,
Kenneth Zadeck <zadeck@naturalbridge.com>
Cc: Richard Biener <richard.guenther@gmail.com>,
Jeff Law <law@redhat.com>, Bernd Schmidt <bernds@gcc.gnu.org>,
GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH v2] PR rtl-optimization/66790: uninitialized registers handling in REE
Date: Tue, 20 Oct 2015 18:14:00 -0000 [thread overview]
Message-ID: <56267C9B.90403@adacore.com> (raw)
In-Reply-To: <CAGWvnykOr+qAcs73S1XDqg_4FyGssgKWnatw0LUvszxt=KBX9w@mail.gmail.com>
David,
On 10/20/2015 11:17 AM, David Edelsohn wrote:
> Did this revised patch address the comments about MIR from Kenny?
Do you refer to this comment?
(https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66790#c20)
> I do have to say that I am still uncomfortable with changing RRE to
> use a MUST problem rather than a MAY problem. I see this as dumbing
> down the compiler to provide the semantics of uninitialized variables
> and it is a path that we have generally avoided in GCC. I do not have
> a better solution, but there is a feeling that something is being
> missed here.
I answered it with questions in comment #27 but there was no followup on
this point afterwards and Bernd approved the change so I thought it was
fine: what should I do?
Thanks in advance,
--
Pierre-Marie de Rodat
next prev parent reply other threads:[~2015-10-20 17:40 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-20 15:26 David Edelsohn
2015-10-20 18:14 ` Pierre-Marie de Rodat [this message]
2015-10-20 20:38 ` Bernd Schmidt
-- strict thread matches above, loose matches on Subject: below --
2015-07-19 6:40 [PATCH] " Pierre-Marie de Rodat
2015-07-27 9:05 ` [PATCH, PING] " Pierre-Marie de Rodat
2015-08-08 8:58 ` [PATCH, PING*2] " Pierre-Marie de Rodat
2015-08-31 7:26 ` [PATCH, PING*3] " Pierre-Marie de Rodat
2015-10-13 15:17 ` [PATCH v2] " Pierre-Marie de Rodat
2015-10-14 13:41 ` Bernd Schmidt
2015-10-19 23:51 ` Pierre-Marie de Rodat
2015-10-23 11:31 ` Bernd Schmidt
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