From: Richard Sandiford <rdsandiford@googlemail.com>
To: Uros Bizjak <ubizjak@gmail.com>
Cc: Jakub Jelinek <jakub@redhat.com>,
gcc-patches@gcc.gnu.org, Eric Botcazou <ebotcazou@adacore.com>
Subject: Re: [PATCH v2, rtl-optimization]: Fix PR54457, [x32] Fail to combine 64bit index + constant
Date: Sun, 30 Sep 2012 11:40:00 -0000 [thread overview]
Message-ID: <87pq53sx2q.fsf@talisman.home> (raw)
In-Reply-To: <CAFULd4aXY1HDrp0+1Oh__wHH=dMPbiA6ah+TqjnnGRDCRUgKUw@mail.gmail.com> (Uros Bizjak's message of "Fri, 28 Sep 2012 17:32:08 +0200")
Uros Bizjak <ubizjak@gmail.com> writes:
> On Thu, Sep 27, 2012 at 8:20 PM, Jakub Jelinek <jakub@redhat.com> wrote:
>> On Thu, Sep 27, 2012 at 08:04:58PM +0200, Uros Bizjak wrote:
>>> After some off-line discussion with Richard, attached is v2 of the patch.
>>>
>>> 2012-09-27 Uros Bizjak <ubizjak@gmail.com>
>>>
>>> PR rtl-optimization/54457
>>> * simplify-rtx.c (simplify_subreg):
>>> Simplify (subreg:SI (op:DI ((x:DI) (y:DI)), 0)
>>> to (op:SI (subreg:SI (x:DI) 0) (subreg:SI (x:DI) 0)).
>>
>> Is that a good idea even for WORD_REGISTER_OPERATIONS targets?
>
> I have bootstrapped and regtested [1] the patch on
> alphaev68-pc-linux-gnu, a WORD_REGISTER_OPERATIONS target, and there
> were no additional failures.
Thanks. Given Jakub's question/concern, I'd really prefer a third
opinion rather than approving it myself, but... OK if no-one objects
within 24hrs.
Richard
next prev parent reply other threads:[~2012-09-30 9:02 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-25 8:04 [PATCH, " Uros Bizjak
2012-09-26 18:17 ` Richard Sandiford
2012-09-26 21:38 ` Eric Botcazou
2012-09-27 14:25 ` Uros Bizjak
2012-09-27 16:10 ` Richard Sandiford
2012-09-27 18:20 ` [PATCH v2, " Uros Bizjak
2012-09-27 18:35 ` Paul_Koning
2012-09-27 19:21 ` Uros Bizjak
2012-10-02 2:13 ` Andrew Pinski
2012-10-02 19:32 ` Richard Sandiford
2012-10-06 10:22 ` RFA: Simplifying truncation and integer lowpart subregs Richard Sandiford
2012-10-06 11:13 ` Eric Botcazou
2012-10-06 12:39 ` Richard Sandiford
2012-10-06 13:05 ` Eric Botcazou
2012-10-07 8:56 ` Richard Sandiford
2012-10-07 12:36 ` Eric Botcazou
2012-11-28 2:27 ` Ramana Radhakrishnan
2012-11-28 21:45 ` Richard Sandiford
2012-09-27 20:33 ` [PATCH v2, rtl-optimization]: Fix PR54457, [x32] Fail to combine 64bit index + constant Jakub Jelinek
2012-09-27 22:37 ` Richard Sandiford
2012-09-28 15:39 ` Uros Bizjak
2012-09-30 11:40 ` Richard Sandiford [this message]
2012-10-03 11:07 ` Paolo Bonzini
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