[PATCH] Add attributes for AMDGPU register limits.

[Matt Arsenault]

> On Dec 3, 2014, at 2:55 PM, Aaron Ballman <aaron at aaronballman.com> wrote:
> 
> On Wed, Dec 3, 2014 at 2:48 PM, Matt Arsenault <arsenm2 at gmail.com> wrote:
>> 
>> On Nov 17, 2014, at 1:32 PM, Aaron Ballman <aaron at aaronballman.com> wrote:
>> 
>> 
>> 
>> +  let Args = [UnsignedArgument<"NumVGPR">];
>> +  let Documentation = [AMDGPURegisterDocs];
>> +  let Subjects = SubjectList<[KernelFunction], ErrorDiag,
>> +                             "ExpectedKernelFunction">;
>> +}
>> +
>> +def AMDGPUNumSGPR : InheritableAttr, TargetSpecificAttr<TargetAMDGPU> {
>> +  let Spellings = [GCC<"amdgpu_num_sgpr">];
>> 
>> 
>> Same comment here as above.
>> 
>> +  let Args = [UnsignedArgument<"NumSGPR">];
>> +  let Documentation = [AMDGPURegisterDocs];
>> 
>> 
>> This will render the same documentation a second time. The usual
>> approach is to create a category in the docs, and then generate
>> different docs in the same category. See the calling convention
>> attributes as an example.
>> 
>> 
>> It turns out they aren’t being rendered at all now. I’m not sure why, I
>> don’t see what I’m doing differently from the interrupt attributes which I
>> followed as an example. It seems many of the attributes documented here are
>> not actually getting generated into the attribute documentation, such as
>> align_value. This i when I attempt to generate the docs, the ones on the
>> website seem to have them.
> 
> How are you attempting to generate the docs? Are you running the
> tablegen pass first, and then sphinx-build?
> 
> ~Aaron

I’m just running make and looking at the output in the build output doc directory