[llvm] [PowerPC] Ensure MI peephole knows about instr modified by combineRLWINM() (PR #97134)

[Amy Kwan via llvm-commits]

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@@ -0,0 +1,111 @@
+; RUN: llc -verify-machineinstrs -mtriple=powerpc-ibm-aix < %s
+; RUN: llc -verify-machineinstrs -mtriple=powerpc64-ibm-aix < %s
+
+; Function Attrs: nocallback nofree nosync nounwind willreturn memory(none)
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amy-kwan wrote:

I noticed we are not checking anything in this LIT test. Is this intentional, or should we be adding CHECKs?

https://github.com/llvm/llvm-project/pull/97134