kito.ch...@gmail.com; tamar.christ...@arm.com
> Subject: Re: [PATCH v1] Internal-fn: Support new IFN SAT_SUB for unsigned
> scalar int
>
> On Wed, Jun 5, 2024 at 10:38 AM Li, Pan2 wrote:
> >
> > > I see. x86 doesn't have scalar saturating instructions, so the scalar
> &
: Re: [PATCH v1] Internal-fn: Support new IFN SAT_SUB for unsigned
scalar int
On Wed, Jun 5, 2024 at 10:38 AM Li, Pan2 wrote:
>
> > I see. x86 doesn't have scalar saturating instructions, so the scalar
> > version indeed can't be converted.
>
> > I will amend x86
On Wed, Jun 5, 2024 at 10:38 AM Li, Pan2 wrote:
>
> > I see. x86 doesn't have scalar saturating instructions, so the scalar
> > version indeed can't be converted.
>
> > I will amend x86 testcases after the vector part of your patch is committed.
>
> Thanks for the confirmation. Just curious, the .
: [PATCH v1] Internal-fn: Support new IFN SAT_SUB for unsigned
scalar int
> I see. x86 doesn't have scalar saturating instructions, so the scalar
> version indeed can't be converted.
> I will amend x86 testcases after the vector part of your patch is committed.
Thanks for the
5, 2024 4:30 PM
To: Li, Pan2
Cc: Richard Biener ; gcc-patches@gcc.gnu.org;
juzhe.zh...@rivai.ai; kito.ch...@gmail.com; tamar.christ...@arm.com
Subject: Re: [PATCH v1] Internal-fn: Support new IFN SAT_SUB for unsigned
scalar int
On Wed, Jun 5, 2024 at 10:22 AM Li, Pan2 wrote:
>
> > Is
On Wed, Jun 5, 2024 at 10:22 AM Li, Pan2 wrote:
>
> > Is the above testcase correct? You need "(x + y)" as the first term.
>
> Thanks for comments, should be copy issue here, you can take SAT_SUB (x, y)
> => (x - y) & (-(TYPE)(x >= y)) or below template for reference.
>
> +#define DEF_SAT_U_SUB_F
4 4:09 PM
To: Li, Pan2
Cc: Richard Biener ; gcc-patches@gcc.gnu.org;
juzhe.zh...@rivai.ai; kito.ch...@gmail.com; tamar.christ...@arm.com
Subject: Re: [PATCH v1] Internal-fn: Support new IFN SAT_SUB for unsigned
scalar int
On Wed, Jun 5, 2024 at 9:38 AM Li, Pan2 wrote:
>
> Thanks Richard,
.gnu.org; juzhe.zh...@rivai.ai; kito.ch...@gmail.com;
> tamar.christ...@arm.com
> Subject: Re: [PATCH v1] Internal-fn: Support new IFN SAT_SUB for unsigned
> scalar int
>
> On Tue, May 28, 2024 at 10:29 AM wrote:
> >
> > From: Pan Li
> >
> > This patch wou
v1] Internal-fn: Support new IFN SAT_SUB for unsigned
scalar int
On Tue, May 28, 2024 at 10:29 AM wrote:
>
> From: Pan Li
>
> This patch would like to add the middle-end presentation for the
> saturation sub. Aka set the result of add to the min when downflow.
> It will take t
On Tue, May 28, 2024 at 10:29 AM wrote:
>
> From: Pan Li
>
> This patch would like to add the middle-end presentation for the
> saturation sub. Aka set the result of add to the min when downflow.
> It will take the pattern similar as below.
>
> SAT_SUB (x, y) => (x - y) & (-(TYPE)(x >= y));
>
>
] Internal-fn: Support new IFN SAT_SUB for unsigned scalar int
From: Pan Li
This patch would like to add the middle-end presentation for the
saturation sub. Aka set the result of add to the min when downflow.
It will take the pattern similar as below.
SAT_SUB (x, y) => (x - y) & (-(TYPE)
From: Pan Li
This patch would like to add the middle-end presentation for the
saturation sub. Aka set the result of add to the min when downflow.
It will take the pattern similar as below.
SAT_SUB (x, y) => (x - y) & (-(TYPE)(x >= y));
For example for uint8_t, we have
* SAT_SUB (255, 0) =>
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