[llvm] [CodeGen] Port `InterleavedAccess` to new pass manager (PR #74904)

[Matt Arsenault via llvm-commits]

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@@ -141,10 +134,60 @@ class InterleavedAccess : public FunctionPass {
                             LoadInst *LI);
 };
 
+class InterleavedAccess : public FunctionPass {
+  InterleavedAccessImpl Impl;
+
+public:
+  static char ID;
+
+  InterleavedAccess() : FunctionPass(ID) {
+    initializeInterleavedAccessPass(*PassRegistry::getPassRegistry());
+  }
+
+  StringRef getPassName() const override { return "Interleaved Access Pass"; }
+
+  bool runOnFunction(Function &F) override;
+
+  void getAnalysisUsage(AnalysisUsage &AU) const override {
+    AU.addRequired<DominatorTreeWrapperPass>();
+    AU.setPreservesCFG();
+  }
+};
+
 } // end anonymous namespace.
 
+PreservedAnalyses InterleavedAccessPass::run(Function &F,
+                                             FunctionAnalysisManager &FAM) {
+  auto *DT = &FAM.getResult<DominatorTreeAnalysis>(F);
+  auto *TLI = TM->getSubtargetImpl(F)->getTargetLowering();
+  InterleavedAccessImpl Impl(DT, TLI);
+  bool Changed = Impl.runOnFunction(F);
+
+  if (!Changed)
+    return PreservedAnalyses::all();
+
+  PreservedAnalyses PA;
+  PA.preserveSet<CFGAnalyses>();
+  return PA;
+}
+
 char InterleavedAccess::ID = 0;
 
+bool InterleavedAccess::runOnFunction(Function &F) {
+  auto *TPC = getAnalysisIfAvailable<TargetPassConfig>();
+  if (!TPC || !LowerInterleavedAccesses)
+    return false;
+
+  LLVM_DEBUG(dbgs() << "*** " << getPassName() << ": " << F.getName() << "\n");
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arsenm wrote:

This kind of printing I think is redundant with regular pass debugging statements

https://github.com/llvm/llvm-project/pull/74904