[llvm] [NewPM][CodeGen] Add `FunctionToMachineFunctionAnalysis` (PR #88610)

[via llvm-commits]

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@@ -15,8 +16,7 @@ using namespace llvm;
 PreservedAnalyses
 FreeMachineFunctionPass::run(MachineFunction &MF,
                              MachineFunctionAnalysisManager &MFAM) {
-  auto &MMI = MF.getMMI();
-  MFAM.invalidate(MF, PreservedAnalyses::none());
-  MMI.deleteMachineFunctionFor(MF.getFunction()); // MF is dangling now.
-  return PreservedAnalyses::none();
+  PreservedAnalyses PA = PreservedAnalyses::none();
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paperchalice wrote:

Yes, agreed we should just use function -> machine function adaptor. I also realized this when I refactor `CodeGenPassBuilder`. Will remove this option temporarily.

https://github.com/llvm/llvm-project/pull/88610