[llvm] CodeGen/NewPM: Initialize MMI in NewPM path (PR #99754)

[via llvm-commits]

================
@@ -509,6 +509,8 @@ void SelectionDAGISel::initializeAnalysisResults(
     FnVarLocs = &FAM.getResult<DebugAssignmentTrackingAnalysis>(Fn);
 
   auto *UA = FAM.getCachedResult<UniformityInfoAnalysis>(Fn);
+  MMI = &MFAM.getResult<MachineModuleAnalysis>(*MF).getMMI();
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paperchalice wrote:

```suggestion
  MMI = MFAM.getResult<ModuleAnalysisManagerMachineFunctionProxy>(*MF)
            .getCachedResult<MachineModuleAnalysis>(*MF->getFunction().getParent());
```

https://github.com/llvm/llvm-project/pull/99754