[llvm-branch-commits] [llvm] [CodeGen][NPM] Port VirtRegRewriter to NPM (PR #130564)

[Christudasan Devadasan via llvm-branch-commits]

================
@@ -276,16 +288,49 @@ void VirtRegRewriter::getAnalysisUsage(AnalysisUsage &AU) 
const {
   MachineFunctionPass::getAnalysisUsage(AU);
 }
 
-bool VirtRegRewriter::runOnMachineFunction(MachineFunction &fn) {
+bool VirtRegRewriterLegacy::runOnMachineFunction(MachineFunction &MF) {
+  VirtRegMap &VRM = getAnalysis<VirtRegMapWrapperLegacy>().getVRM();
+  LiveIntervals &LIS = getAnalysis<LiveIntervalsWrapperPass>().getLIS();
+  LiveRegMatrix &LRM = getAnalysis<LiveRegMatrixWrapperLegacy>().getLRM();
+  SlotIndexes &Indexes = getAnalysis<SlotIndexesWrapperPass>().getSI();
+  LiveDebugVariables &DebugVars =
+      getAnalysis<LiveDebugVariablesWrapperLegacy>().getLDV();
+
+  VirtRegRewriter R(ClearVirtRegs, &Indexes, &LIS, &LRM, &VRM, &DebugVars);
+  return R.run(MF);
+}
+
+PreservedAnalyses
+VirtRegRewriterPass::run(MachineFunction &MF,
+                         MachineFunctionAnalysisManager &MFAM) {
+  VirtRegMap &VRM = MFAM.getResult<VirtRegMapAnalysis>(MF);
+  LiveIntervals &LIS = MFAM.getResult<LiveIntervalsAnalysis>(MF);
+  LiveRegMatrix &LRM = MFAM.getResult<LiveRegMatrixAnalysis>(MF);
+  SlotIndexes &Indexes = MFAM.getResult<SlotIndexesAnalysis>(MF);
+  LiveDebugVariables &DebugVars =
+      MFAM.getResult<LiveDebugVariablesAnalysis>(MF);
+
+  VirtRegRewriter R(ClearVirtRegs, &Indexes, &LIS, &LRM, &VRM, &DebugVars);
+  if (!R.run(MF))
+    return PreservedAnalyses::all();
+  auto PA = getMachineFunctionPassPreservedAnalyses();
----------------
cdevadas wrote:

```suggestion
    return PreservedAnalyses::all();
    
  auto PA = getMachineFunctionPassPreservedAnalyses();
```

https://github.com/llvm/llvm-project/pull/130564
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