[PATCH] D137407: [GlobalIsel] Handle carry output generated in narrowScalarAddSub legalize action

[Yashwant Singh via Phabricator via llvm-commits]

yassingh added a comment.

In D137407#3908174 <https://reviews.llvm.org/D137407#3908174>, @foad wrote:

> In D137407#3907766 <https://reviews.llvm.org/D137407#3907766>, @yassingh wrote:
>
>> Where should I add the tests for this change?
>
> Does AMDGPU use this code? If so you could put something in `test/CodeGen/AMDGPU/GlobalISel/legalize-add.mir`.

It doesn't. I am exploring the idea of legalizing wide G_UADDO instruction using this //narrowScalarAddSub// legalize action(as of now it is lowered to G_ADD first) and noticed it does not handle carry generated.


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  https://reviews.llvm.org/D137407/new/

https://reviews.llvm.org/D137407