From: Hongtao Liu <crazylht@gmail.com>
To: GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH][AVX512] Optimize vpexpand* to mask mov when mask have all ones in it's lower part (including 0 and -1).
Date: Wed, 12 May 2021 15:28:57 +0800 [thread overview]
Message-ID: <CAMZc-bw6sx_Ty3Zahv2-Y3HMA3JRuAgGDxTacDRbBjas2MLPCw@mail.gmail.com> (raw)
In-Reply-To: <CAMZc-bymv8-Bixr8NA7z7nH3KTxt8uJ6qo57igAGkH-jjh49VA@mail.gmail.com>
ping
On Fri, Apr 30, 2021 at 12:49 PM Hongtao Liu <crazylht@gmail.com> wrote:
>
> Hi:
> For v{,p}expand* When mask is 0, -1, or has all all one bits in its
> lower part, it can be optimized to simple mov or mask mov.
> Bootstrapped and regtested on x86_64-linux-gnu{-m32,} and
> x86_64-linux-gnu{m32\ -march=cascadelake,-m64\ -march=cascadelake},
>
> gcc/ChangeLog:
>
> * config/i386/i386-builtin.def (BDESC): Adjust builtin name.
> * config/i386/sse.md (<avx512>_expand<mode>_mask): Rename to ..
> (expand<mode>_mask): this ..
> (*expand<mode>_mask): New pre_reload splitter to transform
> * v{,p}expand* to vmov* when mask is zero, all ones, or has
> all ones in its lower part, otherwise still generate v{,p}expand*.
>
> gcc/testsuite/ChangeLog:
>
> * gcc.target/i386/avx512bw-pr100267-1.c: New test.
> * gcc.target/i386/avx512bw-pr100267-b-2.c: New test.
> * gcc.target/i386/avx512bw-pr100267-d-2.c: New test.
> * gcc.target/i386/avx512bw-pr100267-q-2.c: New test.
> * gcc.target/i386/avx512bw-pr100267-w-2.c: New test.
> * gcc.target/i386/avx512f-pr100267-1.c: New test.
> * gcc.target/i386/avx512f-pr100267-pd-2.c: New test.
> * gcc.target/i386/avx512f-pr100267-ps-2.c: New test.
> * gcc.target/i386/avx512vl-pr100267-1.c: New test.
> * gcc.target/i386/avx512vl-pr100267-pd-2.c: New test.
> * gcc.target/i386/avx512vl-pr100267-ps-2.c: New test.
> * gcc.target/i386/avx512vlbw-pr100267-1.c: New test.
> * gcc.target/i386/avx512vlbw-pr100267-b-2.c: New test.
> * gcc.target/i386/avx512vlbw-pr100267-d-2.c: New test.
> * gcc.target/i386/avx512vlbw-pr100267-q-2.c: New test.
> * gcc.target/i386/avx512vlbw-pr100267-w-2.c: New test.
--
BR,
Hongtao
next prev parent reply other threads:[~2021-05-12 7:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-30 4:42 [PATCH][AVX512] Fix ICE for vpexpand* Hongtao Liu
2021-04-30 4:49 ` [PATCH][AVX512] Optimize vpexpand* to mask mov when mask have all ones in it's lower part (including 0 and -1) Hongtao Liu
2021-05-12 7:28 ` Hongtao Liu [this message]
2021-06-21 11:46 ` Hongtao Liu
2021-05-12 7:29 ` [PATCH][AVX512] Fix ICE for vpexpand* Hongtao Liu
2021-06-21 11:24 ` Hongtao Liu
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