[llvm] [CodeGen][NPM] Port LiveDebugValues to NPM (PR #131563)

[Akshat Oke via llvm-commits]

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@@ -77,36 +78,68 @@ class LiveDebugValues : public MachineFunctionPass {
     AU.setPreservesCFG();
     MachineFunctionPass::getAnalysisUsage(AU);
   }
+};
+
+struct LiveDebugValues {
+  LiveDebugValues();
+  ~LiveDebugValues() = default;
+  bool run(MachineFunction &MF, bool ShouldEmitDebugEntryValues);
 
 private:
   std::unique_ptr<LDVImpl> InstrRefImpl;
   std::unique_ptr<LDVImpl> VarLocImpl;
-  TargetPassConfig *TPC = nullptr;
   MachineDominatorTree MDT;
 };
 } // namespace
 
-char LiveDebugValues::ID = 0;
+char LiveDebugValuesLegacy::ID = 0;
 
-char &llvm::LiveDebugValuesID = LiveDebugValues::ID;
+char &llvm::LiveDebugValuesID = LiveDebugValuesLegacy::ID;
 
-INITIALIZE_PASS(LiveDebugValues, DEBUG_TYPE, "Live DEBUG_VALUE analysis", false,
-                false)
+INITIALIZE_PASS(LiveDebugValuesLegacy, DEBUG_TYPE, "Live DEBUG_VALUE analysis",
+                false, false)
 
 /// Default construct and initialize the pass.
-LiveDebugValues::LiveDebugValues() : MachineFunctionPass(ID) {
-  initializeLiveDebugValuesPass(*PassRegistry::getPassRegistry());
+LiveDebugValuesLegacy::LiveDebugValuesLegacy() : MachineFunctionPass(ID) {
+  initializeLiveDebugValuesLegacyPass(*PassRegistry::getPassRegistry());
+}
+
+LiveDebugValues::LiveDebugValues() {
   InstrRefImpl =
       std::unique_ptr<LDVImpl>(llvm::makeInstrRefBasedLiveDebugValues());
   VarLocImpl = std::unique_ptr<LDVImpl>(llvm::makeVarLocBasedLiveDebugValues());
 }
 
-bool LiveDebugValues::runOnMachineFunction(MachineFunction &MF) {
+PreservedAnalyses
+LiveDebugValuesPass::run(MachineFunction &MF,
+                         MachineFunctionAnalysisManager &MFAM) {
+  if (!LiveDebugValues().run(MF, ShouldEmitDebugEntryValues))
+    return PreservedAnalyses::all();
+  auto PA = getMachineFunctionPassPreservedAnalyses();
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optimisan wrote:

I see, will do

https://github.com/llvm/llvm-project/pull/131563