[llvm] [MIR] Serialize virtual register flags (PR #110228)

[Craig Topper via llvm-commits]

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@@ -150,6 +151,8 @@ struct PerTargetMIParsingState {
   /// Return null if the name isn't a register bank.
   const RegisterBank *getRegBank(StringRef Name);
 
+  bool getVRegFlagValue(StringRef FlagName, uint8_t& FlagValue) const;
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topperc wrote:

`uint8_t& FlagValue` -> `uint8_t &FlagValue`

https://github.com/llvm/llvm-project/pull/110228