[PATCH] D43409: [GISel]: Don't assert when constraining Registers which are uses if there's no regclass.

[Aditya Nandakumar via Phabricator via llvm-commits]

aditya_nandakumar added a comment.

In https://reviews.llvm.org/D43409#1019378, @qcolombet wrote:

> LGTM.
>
> Any chance you could add a test case?


I don't see any upstream GISel target using unknown as operand type and I'm not sure if creating a fake instruction for a target and then selecting it + constraining it is straightforward/necessary.


Repository:
  rL LLVM

https://reviews.llvm.org/D43409