[llvm] [RISCV] Add getFeaturesForCPU function support (PR #83269)

[Craig Topper via llvm-commits]

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@@ -95,5 +96,31 @@ void fillValidTuneCPUArchList(SmallVectorImpl<StringRef> &Values, bool IsRV64) {
 #include "llvm/TargetParser/RISCVTargetParserDef.inc"
 }
 
+void getFeaturesForCPU(StringRef CPU,
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topperc wrote:

This code is dead in tree. We should have a comment indicating why it shouldn't be deleted.

https://github.com/llvm/llvm-project/pull/83269