[PATCH] D14477: Remove unnecessary call to getAllocatableRegClass

[Quentin Colombet via llvm-commits]

I think you’ll need to revert one of the follow-up commit of AMDGPU.
Like r252339

Q.
> On Nov 12, 2015, at 12:41 PM, escha <escha at apple.com> wrote:
> 
> Reverting breaks a bunch of AMDGPU tests; are you sure you want me to do that?
> 
> —escha
> 
> Failing Tests (12):
>     LLVM :: CodeGen/AMDGPU/bswap.ll
>     LLVM :: CodeGen/AMDGPU/commute-compares.ll
>     LLVM :: CodeGen/AMDGPU/fconst64.ll
>     LLVM :: CodeGen/AMDGPU/fcopysign.f32.ll
>     LLVM :: CodeGen/AMDGPU/fcopysign.f64.ll
>     LLVM :: CodeGen/AMDGPU/fneg-fabs.f64.ll
>     LLVM :: CodeGen/AMDGPU/fp_to_sint.f64.ll
>     LLVM :: CodeGen/AMDGPU/llvm.AMDGPU.class.ll
>     LLVM :: CodeGen/AMDGPU/llvm.AMDGPU.rsq.clamped.f64.ll
>     LLVM :: CodeGen/AMDGPU/llvm.round.f64.ll
>     LLVM :: CodeGen/AMDGPU/llvm.round.ll
>     LLVM :: CodeGen/AMDGPU/use-sgpr-multiple-times.ll
> 
>> On Nov 11, 2015, at 5:12 PM, Quentin Colombet <qcolombet at apple.com <mailto:qcolombet at apple.com>> wrote:
>> 
>> 
>>> On Nov 11, 2015, at 5:10 PM, escha <escha at apple.com <mailto:escha at apple.com>> wrote:
>>> 
>>> Yup, the assert does trigger.
>> 
>>> It’s a rather weird target, so I wouldn’t be surprised if it does nonintuitive things that don’t make any good sense.
>> 
>> Heh, feel free to revert, I’ll get back to you to try to understand why we end up in this situation.
>> 
>> Sorry for the breakage!
>> 
>> Q.
>>> 
>>> —escha
>>> 
>>>> On Nov 11, 2015, at 5:08 PM, Quentin Colombet <qcolombet at apple.com <mailto:qcolombet at apple.com>> wrote:
>>>> 
>>>> Hi Fiona,
>>>> 
>>>> Does the assert trigger?
>>>> 
>>>> Cheers,
>>>> -Quentin
>>>>> On Nov 11, 2015, at 4:01 PM, escha <escha at apple.com <mailto:escha at apple.com>> wrote:
>>>>> 
>>>>> escha added a subscriber: escha.
>>>>> escha added a comment.
>>>>> 
>>>>> This broke one of our out-of-tree targets.
>>>>> 
>>>>> —escha
>>>>> 
>>>>> 
>>>>> http://reviews.llvm.org/D14477 <http://reviews.llvm.org/D14477>
>>>>> 
>>>>> 
>>>>> 
>>>> 
>>> 
>> 
> 

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