[llvm] [AMDGPU] Add regbankselect rules for G_ADD/SUB and variants (PR #159860)

[Petar Avramovic via llvm-commits]

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@@ -1,91 +0,0 @@
-# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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petar-avramovic wrote:

Should not delete existing tests, want to see in something changed while we are switching to -global-isel -new-reg-bank-select

https://github.com/llvm/llvm-project/pull/159860