[llvm] [NewPM][CodeGen] Port `regallocfast` to new pass manager (PR #94426)

[via llvm-commits]

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@@ -132,6 +132,19 @@ MACHINE_FUNCTION_PASS("require-all-machine-function-properties",
 MACHINE_FUNCTION_PASS("trigger-verifier-error", TriggerVerifierErrorPass())
 #undef MACHINE_FUNCTION_PASS
 
+#ifndef MACHINE_FUNCTION_PASS_WITH_PARAMS
+#define MACHINE_FUNCTION_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER,    \
+                                          PARAMS)
+#endif
+MACHINE_FUNCTION_PASS_WITH_PARAMS(
+    "regallocfast", "RegAllocFast",
+    [](RegAllocFastPassOptions Opts) { return RegAllocFastPass(Opts); },
+    [PB = this](StringRef Params) {
+      return parseRegAllocFastPassOptions(*PB, Params);
+    },
+    "filter=all|reg-class;clear-vregs;no-clear-vregs")
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paperchalice wrote:

Now renamed to `reg-class`, also update `printPipeline` so we can test output in `--regalloc-npm` in future.

https://github.com/llvm/llvm-project/pull/94426