...@rivai.ai
CC: gcc-patches; kito.cheng; palmer; palmer; jeffreyalaw; Robin Dapp
Subject: Re: [PATCH V2] RISC-V: Fix bug of pre-calculated const vector mask
Do you mind giving some comments about what the difference between the
two versions?
On Wed, Jun 28, 2023 at 11:14 AM juzhe.zh...@rivai.ai
wrote
.
Thanks.
juzhe.zh...@rivai.ai
From: Richard Biener
Date: 2023-06-28 15:17
To: Jeff Law
CC: Kito Cheng; juzhe.zh...@rivai.ai; gcc-patches; kito.cheng; palmer; palmer;
Robin Dapp
Subject: Re: [PATCH V2] RISC-V: Fix bug of pre-calculated const vector mask
On Wed, Jun 28, 2023 at 6:09 AM Jeff Law via Gcc
er; palmer;
Robin Dapp
Subject: Re: [PATCH V2] RISC-V: Fix bug of pre-calculated const vector mask
On Wed, Jun 28, 2023 at 6:09 AM Jeff Law via Gcc-patches
wrote:
>
>
>
> On 6/27/23 21:16, Kito Cheng wrote:
> > Do you mind giving some comments about what the difference between the
On Wed, Jun 28, 2023 at 6:09 AM Jeff Law via Gcc-patches
wrote:
>
>
>
> On 6/27/23 21:16, Kito Cheng wrote:
> > Do you mind giving some comments about what the difference between the
> > two versions?
> And I'd like a before/after assembly code with the example in the commit
> message. I didn't s
bug of pre-calculated const vector mask
I mean the difference between v1 and v2 patch
On Wed, Jun 28, 2023 at 12:09 PM Jeff Law wrote:
>
>
>
> On 6/27/23 21:16, Kito Cheng wrote:
> > Do you mind giving some comments about what the difference between the
> > two versions?
I mean the difference between v1 and v2 patch
On Wed, Jun 28, 2023 at 12:09 PM Jeff Law wrote:
>
>
>
> On 6/27/23 21:16, Kito Cheng wrote:
> > Do you mind giving some comments about what the difference between the
> > two versions?
> And I'd like a before/after assembly code with the example in t
On 6/27/23 21:16, Kito Cheng wrote:
Do you mind giving some comments about what the difference between the
two versions?
And I'd like a before/after assembly code with the example in the commit
message. I didn't see the same behavior when I tried it earlier today
and ran out of time to dig
: 2023-06-28 11:16
To: juzhe.zh...@rivai.ai
CC: gcc-patches; kito.cheng; palmer; palmer; jeffreyalaw; Robin Dapp
Subject: Re: [PATCH V2] RISC-V: Fix bug of pre-calculated const vector mask
Do you mind giving some comments about what the difference between the
two versions?
On Wed, Jun 28, 2023
rvv-next.
>
>
> juzhe.zh...@rivai.ai
>
>
> From: Juzhe-Zhong
> Date: 2023-06-28 09:59
> To: gcc-patches
> CC: kito.cheng; kito.cheng; palmer; palmer; jeffreyalaw; rdapp.gcc;
> Juzhe-Zhong
> Subject: [PATCH V2] RISC-V: Fix bug of pre-calculated const vector ma
-V: Fix bug of pre-calculated const vector mask
This bug blocks the following patches.
GCC doesn't know RVV is using compact mask model.
Consider this following case:
#define N 16
int
main ()
{
int8_t mask[N] = {0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1};
int8_t out[N] = {0};
This bug blocks the following patches.
GCC doesn't know RVV is using compact mask model.
Consider this following case:
#define N 16
int
main ()
{
int8_t mask[N] = {0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1};
int8_t out[N] = {0};
for (int8_t i = 0; i < N; ++i)
if (mask[i])
ou
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