From: Chenghui Pan <panchenghui@loongson.cn>
To: Xi Ruoyao <xry111@xry111.site>, gcc-patches@gcc.gnu.org
Cc: i@xen0n.name, chenglulu@loongson.cn, xuchenghua@loongson.cn
Subject: Re: [PATCH v1 0/6] Add Loongson SX/ASX instruction support to LoongArch target.
Date: Thu, 6 Jul 2023 22:57:40 +0800 [thread overview]
Message-ID: <7b22ca2e-f3e3-bac4-bd92-18de79ebb4f0@loongson.cn> (raw)
In-Reply-To: <0d31ea1c6b3ccbc9a4ca091af3f4332bc95193cd.camel@xry111.site>
No, vld/vst can't guaranteed to be atomic in this condition. Seems we
can't implement this on LoongArch for now.
On 2023/7/5 20:57, Xi Ruoyao wrote:
> A question: is vld/vst guaranteed to be atomic if the accessed address
> is aligned? If true we can use them to implement lock-free 128-bit
> atomic load and store. See https://gcc.gnu.org/bugzilla/PR104688 for
> the background, and some people really hate using a lock for atomics.
>
> On Fri, 2023-06-30 at 10:16 +0800, Chenghui Pan wrote:
>> These patches add the Loongson SX/ASX instruction support to the
>> LoongArch
>> target, and can be utilized by using the new "-mlsx" and
>> "-mlasx" option.
>>
>> Patches are bootstrapped and tested on loongarch64-linux-gnu target.
>>
>> Lulu Cheng (6):
>> LoongArch: Added Loongson SX vector directive compilation framework.
>> LoongArch: Added Loongson SX base instruction support.
>> LoongArch: Added Loongson SX directive builtin function support.
>> LoongArch: Added Loongson ASX vector directive compilation
>> framework.
>> LoongArch: Added Loongson ASX base instruction support.
>> LoongArch: Added Loongson ASX directive builtin function support.
>>
>> gcc/config.gcc | 2 +-
>> gcc/config/loongarch/constraints.md | 128 +-
>> .../loongarch/genopts/loongarch-strings | 4 +
>> gcc/config/loongarch/genopts/loongarch.opt.in | 16 +-
>> gcc/config/loongarch/lasx.md | 5147 ++++++++++++++++
>> gcc/config/loongarch/lasxintrin.h | 5342
>> +++++++++++++++++
>> gcc/config/loongarch/loongarch-builtins.cc | 2686 ++++++++-
>> gcc/config/loongarch/loongarch-c.cc | 18 +
>> gcc/config/loongarch/loongarch-def.c | 6 +
>> gcc/config/loongarch/loongarch-def.h | 9 +-
>> gcc/config/loongarch/loongarch-driver.cc | 10 +
>> gcc/config/loongarch/loongarch-driver.h | 2 +
>> gcc/config/loongarch/loongarch-ftypes.def | 666 +-
>> gcc/config/loongarch/loongarch-modes.def | 39 +
>> gcc/config/loongarch/loongarch-opts.cc | 89 +-
>> gcc/config/loongarch/loongarch-opts.h | 3 +
>> gcc/config/loongarch/loongarch-protos.h | 35 +
>> gcc/config/loongarch/loongarch-str.h | 3 +
>> gcc/config/loongarch/loongarch.cc | 4615 +++++++++++++-
>> gcc/config/loongarch/loongarch.h | 117 +-
>> gcc/config/loongarch/loongarch.md | 56 +-
>> gcc/config/loongarch/loongarch.opt | 16 +-
>> gcc/config/loongarch/lsx.md | 4490 ++++++++++++++
>> gcc/config/loongarch/lsxintrin.h | 5181 ++++++++++++++++
>> gcc/config/loongarch/predicates.md | 333 +-
>> 25 files changed, 28723 insertions(+), 290 deletions(-)
>> create mode 100644 gcc/config/loongarch/lasx.md
>> create mode 100644 gcc/config/loongarch/lasxintrin.h
>> create mode 100644 gcc/config/loongarch/lsx.md
>> create mode 100644 gcc/config/loongarch/lsxintrin.h
>>
prev parent reply other threads:[~2023-07-06 14:58 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-30 2:16 Chenghui Pan
2023-06-30 2:16 ` [PATCH v1 1/6] LoongArch: Added Loongson SX vector directive compilation framework Chenghui Pan
2023-06-30 2:16 ` [PATCH v1 2/6] LoongArch: Added Loongson SX base instruction support Chenghui Pan
2023-06-30 6:38 ` Xi Ruoyao
2023-06-30 6:45 ` Xi Ruoyao
2023-06-30 8:41 ` WANG Xuerui
2023-06-30 2:16 ` [PATCH v1 3/6] LoongArch: Added Loongson SX directive builtin function support Chenghui Pan
2023-06-30 2:16 ` [PATCH v1 4/6] LoongArch: Added Loongson ASX vector directive compilation framework Chenghui Pan
2023-06-30 2:16 ` [PATCH v1 5/6] LoongArch: Added Loongson ASX base instruction support Chenghui Pan
2023-06-30 2:16 ` [PATCH v1 6/6] LoongArch: Added Loongson ASX directive builtin function support Chenghui Pan
2023-06-30 6:31 ` [PATCH v1 0/6] Add Loongson SX/ASX instruction support to LoongArch target Xi Ruoyao
2023-07-05 12:57 ` Xi Ruoyao
2023-07-06 14:57 ` Chenghui Pan [this message]
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