[llvm] [AMDGPU] Make rotr illegal (PR #166558)

[Jay Foad via llvm-commits]

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@@ -1,5 +1,6 @@
 ; RUN: llc < %s -mtriple=r600 -mcpu=redwood | FileCheck %s
 ; RUN: llc < %s -mtriple=r600 -mcpu=cayman | FileCheck %s
+; XFAIL: *
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jayfoad wrote:

Yeah, I guess I will convert it to autogenerated checks.

https://github.com/llvm/llvm-project/pull/166558