[llvm] [AMDGPU] Reject illegal image atomic data widths in SelectionDAG (PR #210366)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,45 @@
+; RUN: not llc -mtriple=amdgcn -mcpu=gfx90a -filetype=null %s 2>&1 | FileCheck %s
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arsenm wrote:

```suggestion
; RUN: not llc -mtriple=amdgpu9.0a -filetype=null %s 2>&1 | FileCheck %s
```

https://github.com/llvm/llvm-project/pull/210366