[llvm-dev] Adding 'v16f16' to tablegen

[Craig Topper via llvm-dev]

Did you add the type to include llvm/CodeGen/ValueTypes.td and
utils/TableGen/CodeGenTarget.cpp?

On Sat, Mar 5, 2016 at 2:26 PM, Martin J. O'Riordan via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> I have been able to adapt the main LLVM sources to work with vectors of 16
> x FP16 values and I have introduced the ‘v16f16’ data type to CLang and
> LLVM, but I am stumped on how to get TableGen to recognise this type.  At
> the moment I am trying to optimise the calling convention code, and
> whenever I refer to ‘v16f16’ I get a crash in TableGen (unrecognised
> type).  Unfortunately I haven’t got my head around the innards of TableGen
> yet, so I am asking if anyone has any advice on how to add a new vector
> data type to TableGen?
>
>
>
> The main reason I need this is that OpenCL supports vectors with 16
> elements for all supported scalar types, and the SHAVE processor does
> support FP16 (aka ‘half’) data types.  Although we don’t natively support
> 16 x FP16, I would like to optimise how values of this type are passed and
> returned; so any advice is appreciated.
>
>
>
> I have the same problem with ‘v16f64’, although this type does not occur
> in any real code that I have found outside the OpenCL test-suite.
>
>
>
> Thanks,
>
>
>
>             MartinO
>
>
>
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>


-- 
~Craig
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