Hi Robin:
Share with you more context that I've discussed with Ju-Zhe, and look
for comments from you :)
There is 3 different auto vectorization flavor:
- VLA
- VLS fixed-vlmax (Name TBD)
- (Traditional) VLS
I think I don't need to explain too much on VLA.
So let we focus on second and third:
V
Ahhh. These compile options are not finalized.
I just ask kito provide me some compile option that I can specify LMUL &&
auto-vectorization mode && vector-length (scalable or fixed-length)
in order to have chances test auto-vectorizaiton fully for example: fully
testing LMUL = 1/2/4/8 auto-vecto
4-20 17:31
To: juzhe.zh...@rivai.ai
CC: Robin Dapp; gcc-patches; palmer; jeffreyalaw
Subject: Re: Re: [PATCH 2/3 V2] RISC-V: Enable basic auto-vectorization for RVV
On Thu, Apr 20, 2023 at 5:07 PM juzhe.zh...@rivai.ai
wrote:
>
> >> With --param=riscv-autovec-preference=fixed-vlmax
On Thu, Apr 20, 2023 at 5:07 PM juzhe.zh...@rivai.ai
wrote:
>
> >> With --param=riscv-autovec-preference=fixed-vlmax, however, the output is
> >> reasonable. BTW please use --param instead of -param in the description to
> >> avoid confusion.
> >>Now the patches don't explicitly note that they on
Hi, kito. Can you give more comments for us in case of compile options?
I think I should fix this patch after we have done all discussions of compile
option
of choosing vector-length && LMUL && auto-vectorization mode (VLA/VLS).
I just received Richard Sandiford comments of "WHILE_LEN" pattern.
O
>> With --param=riscv-autovec-preference=fixed-vlmax, however, the output is
>> reasonable. BTW please use --param instead of -param in the description to
>> avoid confusion.
>>Now the patches don't explicitly note that they only work for certain marchs,
>>configurations or so but they certainly s
On Thu, Apr 20, 2023 at 10:56 AM juzhe.zh...@rivai.ai
wrote:
>
> >> The comment above might not sync with your implementation?
> Address comment.
>
> >> Actually, you've allowed TARGET_MIN_VLEN < 128 && riscv_autovec_lmul <
> >> RVV_M2
> Not sure I am on the same page with you. I return word_mode
>> The comment above might not sync with your implementation?
Address comment.
>> Actually, you've allowed TARGET_MIN_VLEN < 128 && riscv_autovec_lmul < RVV_M2
Not sure I am on the same page with you. I return word_mode for this situation,
the auto-vectorization
will be disabled. I have testcase
