[llvm-dev] Using new types v32f32, v32f64 in llvm backend not possible

hameeza ahmed via llvm-dev llvm-dev at lists.llvm.org
Tue Jul 11 12:56:42 PDT 2017


here by the ********my backend supports v64i32 i mean my hardware.

On Wed, Jul 12, 2017 at 12:49 AM, hameeza ahmed <hahmed2305 at gmail.com>
wrote:

> Thank you so much. it run fine.
> Can you please resolve  following issue;
>
> I now have support for v2048i32
> but my backend supports v64i32
> so ultimately v2048i32 needs to be split into 32 v64i32 instructions. the
> only difference between 2 is if its orginally v2048i32 i want my registers
> assignment from REG_A set. if its v64i32 originally, then i want registers
> from set REG_B.
>
>
> How to accomplish this???
>
> I am really stuck at this point.
>
> Please guide me.
>
> Thank You
>
>
> On Tue, Jul 11, 2017 at 6:20 PM, Hal Finkel <hfinkel at anl.gov> wrote:
>
>>
>> On 07/11/2017 03:22 AM, hameeza ahmed wrote:
>>
>>> Hello,
>>>
>>> i want to work with these types v32f32, v32f64.... in llvm which are
>>> undefined in the backend?
>>> But v32i32, v32i64 are already defined so i am able to use these.
>>>
>>> but for other types such as v32f32, v32f64 although i have defined them
>>> appropriately in all the files like machinevaluetype.h,  valuetypes.cpp
>>> etc. i have checked it many times but still getting the following error
>>> when build in debug mode.
>>>
>>> llvm-tblgen: /utils/TableGen/CodeGenDAGPatterns.cpp:57:
>>> llvm::EEVT::TypeSet::TypeSet(MVT::SimpleValueType, llvm::TreePattern
>>> &): Assertion `(VT < MVT::LAST_VALUETYPE || VT == MVT::iPTR || VT ==
>>> MVT::iPTRAny || VT == MVT::Any) && "Not a concrete type!"' failed.
>>>
>>
>> Are you sure that you updated all of the enum values correctly, including
>> updating MVT::LAST_VALUETYPE, etc., and also updated
>> utils/TableGen/CodeGenTarget.cpp?
>>
>>  -Hal
>>
>>
>>
>>>
>>> What could be the reason?? please guide how to define new types in llvm
>>> backend.
>>>
>>>
>>> Thank You
>>>
>>
>> --
>> Hal Finkel
>> Lead, Compiler Technology and Programming Languages
>> Leadership Computing Facility
>> Argonne National Laboratory
>>
>>
>
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