[llvm] [AMDGPU] Reject i64 amdgcn.ubfe/sbfe with a diagnostic (PR #217461)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,11 @@
+; RUN: not llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s 2>&1 | FileCheck %s
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arsenm wrote:

```suggestion
; RUN: not llc -mtriple=amdgpu9.00-amd-amdhsa < %s 2>&1 | FileCheck %s
```

https://github.com/llvm/llvm-project/pull/217461