[PATCH] D123639: AMDGPU: Select i8/i16 global and flat atomic load/store

[Matt Arsenault via Phabricator via llvm-commits]

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As far as I know these should be atomic anyway, as long as the address
is aligned. Unaligned atomics hit an ugly error in AtomicExpand.


https://reviews.llvm.org/D123639

Files:
  llvm/lib/Target/AMDGPU/BUFInstructions.td
  llvm/lib/Target/AMDGPU/FLATInstructions.td
  llvm/test/CodeGen/AMDGPU/flat_atomics.ll
  llvm/test/CodeGen/AMDGPU/global_atomics.ll

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