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

[Pengcheng Wang 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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wangpc-pp wrote:

Curently no, but we can support them in `RISCVISAInfo::updateCombination()`.
And I don't know if we need `getRISCVProfile` function, maybe we should remove it because there is no user.

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