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Re: Extract and insert merging patch

From: Petr Murzin <petrmurzin1 at gmail dot com>
To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
Cc: Andrew Pinski <pinskia at gmail dot com>, Kirill Yukhin <kirill dot yukhin at gmail dot com>
Date: Wed, 5 Nov 2014 23:46:37 +0300
Subject: Re: Extract and insert merging patch
Authentication-results: sourceware.org; auth=none
References: <CANDVG5j0+sn_1EeBrmU0ebQn=E91BWULu60d=5CxH6kN9BHV=w at mail dot gmail dot com> <CA+=Sn1mq-CZDk+u1e9WO=JbQuEkxr+3Y+AEOsH8ex_0OcDhG9Q at mail dot gmail dot com> <541B521A dot 4010309 at redhat dot com> <CANDVG5h9KPDoOaFBcb_2kmFf1F6jJ2z7+b_ULwQ35aROGiHXBQ at mail dot gmail dot com> <alpine dot DEB dot 2 dot 11 dot 1410222022350 dot 1567 at laptop-mg dot saclay dot inria dot fr>

Hi,
Bootstrapped. No regressions detected. Please have a look. Is it ok for trunk?

2014-11-05  Petr Murzin  <petr.murzin@intel.com>

gcc/
         * simplify-rtx.c (simplify_ternary_operation): Simplify
           vec_merge (vec_duplicate (vec_select)).

gcc/testsuite/
         * gcc.target/i386/extract-insert-combining.c: New.

Thanks,
Petr

On Wed, Oct 22, 2014 at 9:35 PM, Marc Glisse <marc.glisse@inria.fr> wrote:
> On Wed, 22 Oct 2014, Petr Murzin wrote:
>
>> +                     && UINTVAL (op2) == 1 << UINTVAL (tem))
>
>
> With modes like V64QI around, it is better to replace 1 with
> HOST_WIDE_INT_1U, though we are not consistent about it.
>
> --
> Marc Glisse

Attachment: extract_insert_patch
Description: Binary data

Follow-Ups:
- Re: Extract and insert merging patch
  - From: Jeff Law

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