[llvm] [RISCV] Port Post-RA Expand Pseudos to NewPM (PR #218080)

[Aiden Grossman via llvm-commits]

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@@ -123,8 +123,15 @@ FunctionPass *createRISCVInsertVSETVLIPass();
 void initializeRISCVInsertVSETVLIPass(PassRegistry &);
 extern char &RISCVInsertVSETVLIID;
 
-FunctionPass *createRISCVPostRAExpandPseudoPass();
-void initializeRISCVPostRAExpandPseudoPass(PassRegistry &);
+class RISCVPostRAExpandPseudoPass
+    : public OptionalPassInfoMixin<RISCVPostRAExpandPseudoPass> {
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boomanaiden154 wrote:

Should probably be required?

https://github.com/llvm/llvm-project/pull/218080