[llvm-branch-commits] [llvm] [AMDGPU][True16] Add regbank combiner cases to fix regression around G_SEXTLOAD (PR #198671)

[Petar Avramovic via llvm-branch-commits]

https://github.com/petar-avramovic commented:

need to regenerate some failing ll tests

https://github.com/llvm/llvm-project/pull/198671