From: Uros Bizjak <ubizjak@gmail.com>
To: Jakub Jelinek <jakub@redhat.com>
Cc: gcc-patches@gcc.gnu.org,
Richard Sandiford <rdsandiford@googlemail.com>,
Eric Botcazou <ebotcazou@adacore.com>
Subject: Re: [PATCH v2, rtl-optimization]: Fix PR54457, [x32] Fail to combine 64bit index + constant
Date: Fri, 28 Sep 2012 15:39:00 -0000 [thread overview]
Message-ID: <CAFULd4aXY1HDrp0+1Oh__wHH=dMPbiA6ah+TqjnnGRDCRUgKUw@mail.gmail.com> (raw)
In-Reply-To: <20120927182008.GZ1787@tucnak.redhat.com>
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.
[1] http://gcc.gnu.org/ml/gcc-testresults/2012-09/msg02828.html
Uros.
next prev parent reply other threads:[~2012-09-28 15:32 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 [this message]
2012-09-30 11:40 ` Richard Sandiford
2012-10-03 11:07 ` Paolo Bonzini
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