On Wed, 8 Nov 2023, Kito Cheng wrote:
> OK, then LGTM, thanks for the explanation :)
Please don't top-post on a GCC mailing list (and preferably in off-list
replies to such mailing list messages unless it's been agreed to somehow
with the participants), as it makes it difficult to make context
On Wed, Nov 8, 2023 at 2:37 PM juzhe.zh...@rivai.ai
wrote:
>
> Another question raise to me.
>
> Is it necessary we have such many variant of vsetvls?
>
> I am thinking about redesign:
>
> __riscv_vsetvl_e8mf8
> __riscv_vsetvl_e16mf4
> __riscv_vsetvl_e32mf2
> __riscv_vsetvl_e64m1
>
> They are quit
__
> juzhe.zh...@rivai.ai
>
>
> From: Kito Cheng
> Date: 2023-11-08 14:16
> To: Juzhe-Zhong
> CC: gcc-patches; kito.cheng; jeffreyalaw; rdapp.gcc
> Subject: Re: [PATCH] RISC-V: Normalize user vsetvl intrinsics[PR112092]
> I thought vsetvli insertion will try to merge them
zh...@rivai.ai
>
>
> From: Kito Cheng
> Date: 2023-11-08 14:16
> To: Juzhe-Zhong
> CC: gcc-patches; kito.cheng; jeffreyalaw; rdapp.gcc
> Subject: Re: [PATCH] RISC-V: Normalize user vsetvl intrinsics[PR112092]
> I thought vsetvli insertion will try to merge them into one for
)
|
bb 3
I don't think we should do this on VSETVL PASS.
juzhe.zh...@rivai.ai
From: Kito Cheng
Date: 2023-11-08 14:16
To: Juzhe-Zhong
CC: gcc-patches; kito.cheng; jeffreyalaw; rdapp.gcc
Subject: Re: [PATCH] RISC-V: Normalize user vsetvl intrinsics[PR112092]
I thought vsetvli insertion wil
e32m1TU
bb 2:
...
vle
vle
vse
juzhe.zh...@rivai.ai
From: Kito Cheng
Date: 2023-11-08 14:16
To: Juzhe-Zhong
CC: gcc-patches; kito.cheng; jeffreyalaw; rdapp.gcc
Subject: Re: [PATCH] RISC-V: Normalize user vsetvl intrinsics[PR112092]
I thought vsetvli insertion will try to merge them into one for
I thought vsetvli insertion will try to merge them into one for those
cases? Could you explain few more reasons why they are not fused now?
Not an objection since I could imageing that would be easier to
process, just wondering why.
On Wed, Nov 8, 2023 at 2:11 PM Juzhe-Zhong wrote:
>
> Since our
Since our user vsetvl intrinsics are defined as just calculate the VL output
which is the number of the elements to be processed. Such intrinsics do not
have any side effects. We should normalize them when they have same ratio.
E.g __riscv_vsetvl_e8mf8 result is same as __riscv_vsetvl_e64m1.
Nor
