[llvm] [NewPM][CodeGen] Let `ModuleToMachineFunctionPassAdaptor` own `MachineModuleInfo` (PR #87226)

[Christudasan Devadasan via llvm-commits]

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@@ -205,8 +205,15 @@ template <typename DerivedT> class CodeGenPassBuilder {
     AddMachinePass(ModulePassManager &MPM, const DerivedT &PB)
         : MPM(MPM), PB(PB) {}
     ~AddMachinePass() {
-      if (!MFPM.isEmpty())
-        MPM.addPass(createModuleToMachineFunctionPassAdaptor(std::move(MFPM)));
+      if (!MFPM.isEmpty()) {
+        if (PB.PB.hasMachineModuleInfoOwnership()) {
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cdevadas wrote:

Why PB.PB here and a few more places below?

https://github.com/llvm/llvm-project/pull/87226