[clang] [llvm] [RISCV] Add subtarget features for profiles (PR #84877)

[Kito Cheng via cfe-commits]

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@@ -138,6 +155,8 @@ class RISCVSubtarget : public RISCVGenSubtargetInfo {
   /// initializeProperties().
   RISCVProcFamilyEnum getProcFamily() const { return RISCVProcFamily; }
 
+  RISCVProfileEnum getRISCVProfile() const { return RISCVProfile; }
+
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kito-cheng wrote:

I guess it little bit same situation like those macro extensions, so what if user manually specify all extension present in certain profile? does it will detect right when invoke `getRISCVProfile`?

https://github.com/llvm/llvm-project/pull/84877