[cfe-dev] [RFC] Support intel_reqd_sub_group_size attribute

[Hal Finkel via cfe-dev]

On 03/09/2017 09:44 AM, Hal Finkel via cfe-dev wrote:
>
> Hi Xiuli,
>
> This looks like a simple attribute to parse, 
> __attribute__((intel_reqd_sub_group_size(<int>))), and I don't see why 
> this would be controversial. I recommend just sending a patch for review.
>

I'm assuming that you're just going to emit corresponding kernel 
metadata. If the handling will be more involved than that, then it might 
be worth discussing beforehand.

  -Hal

>  -Hal
>
>
> On 02/28/2017 12:55 AM, Pan Xiuli via cfe-dev wrote:
>>
>> Hi Anastasia,
>>
>> We are now enabling some Intel OpenCL extension and find in extension 
>> cl_intel_required_subgroup_size 
>> (https://www.khronos.org/registry/OpenCL/extensions/intel/cl_intel_required_subgroup_size.txt) 
>> has an attribute intel_reqd_sub_group_size that is very useful for 
>> intel subgroup usage and does not supported by clang now. And I want 
>> to send a patch to enable it, what do you think about this?
>>
>> Thanks
>>
>> Xiuli
>>
>>
>>
>> _______________________________________________
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>> cfe-dev at lists.llvm.org
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>
> -- 
> Hal Finkel
> Lead, Compiler Technology and Programming Languages
> Leadership Computing Facility
> Argonne National Laboratory
>
>
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-- 
Hal Finkel
Lead, Compiler Technology and Programming Languages
Leadership Computing Facility
Argonne National Laboratory

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