From: Uros Bizjak <ubizjak@gmail.com>
To: "Kong, Lingling" <lingling.kong@intel.com>
Cc: "gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>,
"Liu, Hongtao" <hongtao.liu@intel.com>,
"Wang, Hongyu" <hongyu.wang@intel.com>
Subject: Re: [PATCH 1/8] [APX NF]: Support APX NF add
Date: Wed, 15 May 2024 10:14:52 +0200 [thread overview]
Message-ID: <CAFULd4aeswx1LboujnkAsezOL6m--ViNy3ja7Ume7-1cKLqD+g@mail.gmail.com> (raw)
In-Reply-To: <DM4PR11MB54875F424AA0C150F24FC791ECEC2@DM4PR11MB5487.namprd11.prod.outlook.com>
On Wed, May 15, 2024 at 9:43 AM Kong, Lingling <lingling.kong@intel.com> wrote:
>
> From: Hongyu Wang <hongyu.wang@intel.com>
>
> APX NF(no flags) feature implements suppresses the update of status flags for arithmetic operations.
>
> For NF add, it is not clear whether NF add can be faster than lea. If so, the pattern needs to be adjusted to prefer LEA generation.
> diff --git a/gcc/testsuite/gcc.target/i386/apx-ndd.c b/gcc/testsuite/gcc.target/i386/apx-ndd.c
> index 0eb751ad225..0ff4df0780c 100644
> --- a/gcc/testsuite/gcc.target/i386/apx-ndd.c
> +++ b/gcc/testsuite/gcc.target/i386/apx-ndd.c
> @@ -1,5 +1,5 @@
> /* { dg-do compile { target { ! ia32 } } } */
> -/* { dg-options "-mapxf -march=x86-64 -O2" } */
> +/* { dg-options "-mapx-features=egpr,push2pop2,ndd,ppx -march=x86-64
> +-O2" } */
Please do not split options to a separate line; here and in other places.
Uros.
next prev parent reply other threads:[~2024-05-15 8:15 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20240515070226.3760873-1-lingling.kong@intel.com>
2024-05-15 7:43 ` Kong, Lingling
2024-05-15 8:14 ` Uros Bizjak [this message]
2024-05-15 8:36 ` Kong, Lingling
2024-05-15 8:46 ` Uros Bizjak
2024-05-22 8:29 ` [PATCH v2 " Kong, Lingling
2024-05-22 8:35 ` Uros Bizjak
[not found] ` <20240515070226.3760873-2-lingling.kong@intel.com>
2024-05-15 7:44 ` [PATCH 2/8] [APX NF] Support APX NF for {sub/and/or/xor/neg} Kong, Lingling
[not found] ` <20240515070226.3760873-3-lingling.kong@intel.com>
2024-05-15 7:44 ` [PATCH 3/8] [APX NF] Support APX NF for left shift insns Kong, Lingling
[not found] ` <20240515070226.3760873-4-lingling.kong@intel.com>
2024-05-15 7:45 ` [PATCH 4/8] [APX NF] Support APX NF for right " Kong, Lingling
[not found] ` <20240515070226.3760873-5-lingling.kong@intel.com>
2024-05-15 7:45 ` [PATCH 5/8] [APX NF] Support APX NF for rotate insns Kong, Lingling
[not found] ` <20240515070226.3760873-6-lingling.kong@intel.com>
2024-05-15 7:46 ` [PATCH 6/8] [APX NF] Support APX NF for shld/shrd Kong, Lingling
[not found] ` <20240515070226.3760873-7-lingling.kong@intel.com>
2024-05-15 7:46 ` [PATCH 7/8] [APX NF] Support APX NF for mul/div Kong, Lingling
[not found] ` <20240515070226.3760873-8-lingling.kong@intel.com>
2024-05-15 7:47 ` [PATCH 8/8] [APX NF] Support APX NF for lzcnt/tzcnt/popcnt Kong, Lingling
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