[llvm] [RISCV] Port PreRA Pseudo Expansion to NewPM (PR #218069)

[Sam Elliott via llvm-commits]

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@@ -36,6 +36,8 @@ MACHINE_FUNCTION_PASS("riscv-asm-printer", RISCVAsmPrinterPass())
 MACHINE_FUNCTION_PASS("riscv-fold-mem-offset", RISCVFoldMemOffsetPass())
 MACHINE_FUNCTION_PASS("riscv-isel", RISCVISelDAGToDAGPass(*this, getOptLevel()))
 MACHINE_FUNCTION_PASS("riscv-opt-w-instrs", RISCVOptWInstrsPass())
+MACHINE_FUNCTION_PASS("riscv-prera-expand-pseudo",
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lenary wrote:

(I'm not opposed to changing this in the future, but I didn't think this was the PR to do it in)

https://github.com/llvm/llvm-project/pull/218069