[llvm] [AMDGPU] Do not forward reserved aperture registers into wider copies (PR #220517)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,14 @@
+# RUN: not llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1100 -run-pass=postrapseudos -o /dev/null %s 2>&1 | FileCheck %s
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arsenm wrote:

```suggestion
# RUN: not llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1100 -run-pass=postrapseudos -filetype=null %s 2>&1 | FileCheck %s
```

https://github.com/llvm/llvm-project/pull/220517