[llvm] [NewPM][CodeGen] Port selection dag isel to new pass manager (PR #83567)

[via llvm-commits]

https://github.com/paperchalice updated https://github.com/llvm/llvm-project/pull/83567

>From 3638ddc02f8e29f9e22580c5a3af1c07e2ddfb68 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Wed, 10 Apr 2024 21:22:59 +0800
Subject: [PATCH 01/25] [NewPM][CodeGen] Port `SelectionDAGISel` to new pass
 manager

---
 llvm/include/llvm/CodeGen/SelectionDAG.h      |  12 +
 llvm/include/llvm/CodeGen/SelectionDAGISel.h  |  43 +++-
 llvm/include/llvm/CodeGen/StackProtector.h    |   2 +
 .../CodeGen/SelectionDAG/SelectionDAGISel.cpp | 226 +++++++++++++-----
 4 files changed, 224 insertions(+), 59 deletions(-)

diff --git a/llvm/include/llvm/CodeGen/SelectionDAG.h b/llvm/include/llvm/CodeGen/SelectionDAG.h
index f347131be080f6..bc1626a2d7472c 100644
--- a/llvm/include/llvm/CodeGen/SelectionDAG.h
+++ b/llvm/include/llvm/CodeGen/SelectionDAG.h
@@ -29,6 +29,7 @@
 #include "llvm/CodeGen/ISDOpcodes.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineMemOperand.h"
+#include "llvm/CodeGen/MachinePassManager.h"
 #include "llvm/CodeGen/SelectionDAGNodes.h"
 #include "llvm/CodeGen/ValueTypes.h"
 #include "llvm/CodeGenTypes/MachineValueType.h"
@@ -229,6 +230,7 @@ class SelectionDAG {
   const TargetLibraryInfo *LibInfo = nullptr;
   const FunctionVarLocs *FnVarLocs = nullptr;
   MachineFunction *MF;
+  MachineFunctionAnalysisManager *MFAM = nullptr;
   Pass *SDAGISelPass = nullptr;
   LLVMContext *Context;
   CodeGenOptLevel OptLevel;
@@ -457,6 +459,15 @@ class SelectionDAG {
             UniformityInfo *UA, ProfileSummaryInfo *PSIin,
             BlockFrequencyInfo *BFIin, FunctionVarLocs const *FnVarLocs);
 
+  void init(MachineFunction &NewMF, OptimizationRemarkEmitter &NewORE,
+            MachineFunctionAnalysisManager &AM,
+            const TargetLibraryInfo *LibraryInfo, UniformityInfo *UA,
+            ProfileSummaryInfo *PSIin, BlockFrequencyInfo *BFIin,
+            FunctionVarLocs const *FnVarLocs) {
+    init(NewMF, NewORE, nullptr, LibraryInfo, UA, PSIin, BFIin, FnVarLocs);
+    MFAM = &AM;
+  }
+
   void setFunctionLoweringInfo(FunctionLoweringInfo * FuncInfo) {
     FLI = FuncInfo;
   }
@@ -467,6 +478,7 @@ class SelectionDAG {
 
   MachineFunction &getMachineFunction() const { return *MF; }
   const Pass *getPass() const { return SDAGISelPass; }
+  MachineFunctionAnalysisManager *getMFAM() { return MFAM; }
 
   const DataLayout &getDataLayout() const { return MF->getDataLayout(); }
   const TargetMachine &getTarget() const { return TM; }
diff --git a/llvm/include/llvm/CodeGen/SelectionDAGISel.h b/llvm/include/llvm/CodeGen/SelectionDAGISel.h
index 837f8bf7263ea9..fe655543a4705c 100644
--- a/llvm/include/llvm/CodeGen/SelectionDAGISel.h
+++ b/llvm/include/llvm/CodeGen/SelectionDAGISel.h
@@ -15,6 +15,7 @@
 #define LLVM_CODEGEN_SELECTIONDAGISEL_H
 
 #include "llvm/CodeGen/MachineFunctionPass.h"
+#include "llvm/CodeGen/MachinePassManager.h"
 #include "llvm/CodeGen/SelectionDAG.h"
 #include "llvm/IR/BasicBlock.h"
 #include <memory>
@@ -24,6 +25,7 @@ class AAResults;
 class AssumptionCache;
 class TargetInstrInfo;
 class TargetMachine;
+class SSPLayoutInfo;
 class SelectionDAGBuilder;
 class SDValue;
 class MachineRegisterInfo;
@@ -31,6 +33,7 @@ class MachineFunction;
 class OptimizationRemarkEmitter;
 class TargetLowering;
 class TargetLibraryInfo;
+class TargetTransformInfo;
 class FunctionLoweringInfo;
 class SwiftErrorValueTracking;
 class GCFunctionInfo;
@@ -38,7 +41,7 @@ class ScheduleDAGSDNodes;
 
 /// SelectionDAGISel - This is the common base class used for SelectionDAG-based
 /// pattern-matching instruction selectors.
-class SelectionDAGISel : public MachineFunctionPass {
+class SelectionDAGISel {
 public:
   TargetMachine &TM;
   const TargetLibraryInfo *LibInfo;
@@ -51,6 +54,10 @@ class SelectionDAGISel : public MachineFunctionPass {
   AAResults *AA = nullptr;
   AssumptionCache *AC = nullptr;
   GCFunctionInfo *GFI = nullptr;
+  SSPLayoutInfo *SP = nullptr;
+#ifndef NDEBUG
+  TargetTransformInfo *TTI = nullptr;
+#endif
   CodeGenOptLevel OptLevel;
   const TargetInstrInfo *TII;
   const TargetLowering *TLI;
@@ -67,16 +74,18 @@ class SelectionDAGISel : public MachineFunctionPass {
   /// functions. Storing the filter result here so that we only need to do the
   /// filtering once.
   bool MatchFilterFuncName = false;
+  StringRef FuncName;
 
-  explicit SelectionDAGISel(char &ID, TargetMachine &tm,
+  explicit SelectionDAGISel(TargetMachine &tm,
                             CodeGenOptLevel OL = CodeGenOptLevel::Default);
-  ~SelectionDAGISel() override;
+  ~SelectionDAGISel();
 
   const TargetLowering *getTargetLowering() const { return TLI; }
 
-  void getAnalysisUsage(AnalysisUsage &AU) const override;
+  void initializeAnalysisResults(MachineFunctionAnalysisManager &MFAM);
+  void initializeAnalysisResults(MachineFunctionPass &MFP);
 
-  bool runOnMachineFunction(MachineFunction &MF) override;
+  virtual bool runOnMachineFunction(MachineFunction &mf);
 
   virtual void emitFunctionEntryCode() {}
 
@@ -517,6 +526,30 @@ class SelectionDAGISel : public MachineFunctionPass {
                     bool isMorphNodeTo);
 };
 
+class SelectionDAGISelLegacy : public MachineFunctionPass {
+  std::unique_ptr<SelectionDAGISel> Selector;
+
+public:
+  SelectionDAGISelLegacy(char &ID, std::unique_ptr<SelectionDAGISel> S);
+
+  ~SelectionDAGISelLegacy() override = default;
+
+  void getAnalysisUsage(AnalysisUsage &AU) const override;
+
+  bool runOnMachineFunction(MachineFunction &MF) override;
+};
+
+class SelectionDAGISelPass : public PassInfoMixin<SelectionDAGISelPass> {
+  std::unique_ptr<SelectionDAGISel> Selector;
+
+protected:
+  SelectionDAGISelPass(std::unique_ptr<SelectionDAGISel> Selector)
+      : Selector(std::move(Selector)) {}
+
+public:
+  PreservedAnalyses run(MachineFunction &MF,
+                        MachineFunctionAnalysisManager &MFAM);
+};
 }
 
 #endif /* LLVM_CODEGEN_SELECTIONDAGISEL_H */
diff --git a/llvm/include/llvm/CodeGen/StackProtector.h b/llvm/include/llvm/CodeGen/StackProtector.h
index eb5d9d0caebc60..dfafc781067d71 100644
--- a/llvm/include/llvm/CodeGen/StackProtector.h
+++ b/llvm/include/llvm/CodeGen/StackProtector.h
@@ -109,6 +109,8 @@ class StackProtector : public FunctionPass {
 
   StackProtector();
 
+  SSPLayoutInfo &getLayoutInfo() { return LayoutInfo; }
+
   void getAnalysisUsage(AnalysisUsage &AU) const override;
 
   // Return true if StackProtector is supposed to be handled by SelectionDAG.
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index d629c36bc792e3..4455c0198a3fcd 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -341,9 +341,49 @@ void TargetLowering::AdjustInstrPostInstrSelection(MachineInstr &MI,
 // SelectionDAGISel code
 //===----------------------------------------------------------------------===//
 
-SelectionDAGISel::SelectionDAGISel(char &ID, TargetMachine &tm,
-                                   CodeGenOptLevel OL)
-    : MachineFunctionPass(ID), TM(tm), FuncInfo(new FunctionLoweringInfo()),
+SelectionDAGISelLegacy::SelectionDAGISelLegacy(
+    char &ID, std::unique_ptr<SelectionDAGISel> S)
+    : MachineFunctionPass(ID), Selector(std::move(S)) {
+  initializeGCModuleInfoPass(*PassRegistry::getPassRegistry());
+  initializeBranchProbabilityInfoWrapperPassPass(
+      *PassRegistry::getPassRegistry());
+  initializeAAResultsWrapperPassPass(*PassRegistry::getPassRegistry());
+  initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
+}
+
+bool SelectionDAGISelLegacy::runOnMachineFunction(MachineFunction &MF) {
+  // If we already selected that function, we do not need to run SDISel.
+  if (MF.getProperties().hasProperty(
+          MachineFunctionProperties::Property::Selected))
+    return false;
+
+  // Do some sanity-checking on the command-line options.
+  if (!EnableFastISelAbort || Selector->TM.Options.EnableFastISel)
+    report_fatal_error("-fast-isel-abort > 0 requires -fast-isel");
+
+  // Decide what flavour of variable location debug-info will be used, before
+  // we change the optimisation level.
+  MF.setUseDebugInstrRef(MF.shouldUseDebugInstrRef());
+
+  // Reset the target options before resetting the optimization
+  // level below.
+  // FIXME: This is a horrible hack and should be processed via
+  // codegen looking at the optimization level explicitly when
+  // it wants to look at it.
+  Selector->TM.resetTargetOptions(MF.getFunction());
+  // Reset OptLevel to None for optnone functions.
+  CodeGenOptLevel NewOptLevel = skipFunction(MF.getFunction())
+                                    ? CodeGenOptLevel::None
+                                    : Selector->OptLevel;
+
+  Selector->MF = &MF;
+  OptLevelChanger OLC(*Selector, NewOptLevel);
+  Selector->initializeAnalysisResults(*this);
+  return Selector->runOnMachineFunction(MF);
+}
+
+SelectionDAGISel::SelectionDAGISel(TargetMachine &tm, CodeGenOptLevel OL)
+    : TM(tm), FuncInfo(new FunctionLoweringInfo()),
       SwiftError(new SwiftErrorValueTracking()),
       CurDAG(new SelectionDAG(tm, OL)),
       SDB(std::make_unique<SelectionDAGBuilder>(*CurDAG, *FuncInfo, *SwiftError,
@@ -361,14 +401,17 @@ SelectionDAGISel::~SelectionDAGISel() {
   delete SwiftError;
 }
 
-void SelectionDAGISel::getAnalysisUsage(AnalysisUsage &AU) const {
+void SelectionDAGISelLegacy::getAnalysisUsage(AnalysisUsage &AU) const {
+  CodeGenOptLevel OptLevel = Selector->OptLevel;
   if (OptLevel != CodeGenOptLevel::None)
       AU.addRequired<AAResultsWrapperPass>();
   AU.addRequired<GCModuleInfo>();
   AU.addRequired<StackProtector>();
   AU.addPreserved<GCModuleInfo>();
   AU.addRequired<TargetLibraryInfoWrapperPass>();
+#ifndef NDEBUG
   AU.addRequired<TargetTransformInfoWrapperPass>();
+#endif
   AU.addRequired<AssumptionCacheTracker>();
   if (UseMBPI && OptLevel != CodeGenOptLevel::None)
       AU.addRequired<BranchProbabilityInfoWrapperPass>();
@@ -406,65 +449,127 @@ static void computeUsesMSVCFloatingPoint(const Triple &TT, const Function &F,
   }
 }
 
-bool SelectionDAGISel::runOnMachineFunction(MachineFunction &mf) {
+PreservedAnalyses
+SelectionDAGISelPass::run(MachineFunction &MF,
+                          MachineFunctionAnalysisManager &MFAM) {
   // If we already selected that function, we do not need to run SDISel.
-  if (mf.getProperties().hasProperty(
+  if (MF.getProperties().hasProperty(
           MachineFunctionProperties::Property::Selected))
-    return false;
-  // Do some sanity-checking on the command-line options.
-  assert((!EnableFastISelAbort || TM.Options.EnableFastISel) &&
-         "-fast-isel-abort > 0 requires -fast-isel");
-
-  const Function &Fn = mf.getFunction();
-  MF = &mf;
+    return PreservedAnalyses::all();
 
-#ifndef NDEBUG
-  StringRef FuncName = Fn.getName();
-  MatchFilterFuncName = isFunctionInPrintList(FuncName);
-#else
-  (void)MatchFilterFuncName;
-#endif
+  // Do some sanity-checking on the command-line options.
+  if (!EnableFastISelAbort || Selector->TM.Options.EnableFastISel)
+    report_fatal_error("-fast-isel-abort > 0 requires -fast-isel");
 
   // Decide what flavour of variable location debug-info will be used, before
   // we change the optimisation level.
-  bool InstrRef = mf.shouldUseDebugInstrRef();
-  mf.setUseDebugInstrRef(InstrRef);
+  MF.setUseDebugInstrRef(MF.shouldUseDebugInstrRef());
 
   // Reset the target options before resetting the optimization
   // level below.
   // FIXME: This is a horrible hack and should be processed via
   // codegen looking at the optimization level explicitly when
   // it wants to look at it.
-  TM.resetTargetOptions(Fn);
+  Selector->TM.resetTargetOptions(MF.getFunction());
   // Reset OptLevel to None for optnone functions.
-  CodeGenOptLevel NewOptLevel = OptLevel;
-  if (OptLevel != CodeGenOptLevel::None && skipFunction(Fn))
-    NewOptLevel = CodeGenOptLevel::None;
-  OptLevelChanger OLC(*this, NewOptLevel);
+  // TODO: Add a function analysis to handle this.
+  Selector->MF = &MF;
+  Selector->initializeAnalysisResults(MFAM);
+  Selector->runOnMachineFunction(MF);
+
+  return PreservedAnalyses::none();
+}
+
+void SelectionDAGISel::initializeAnalysisResults(
+    MachineFunctionAnalysisManager &MFAM) {
+  auto &FAM = MFAM.getResult<FunctionAnalysisManagerMachineFunctionProxy>(*MF)
+                  .getManager();
+  auto &MAMP = MFAM.getResult<ModuleAnalysisManagerMachineFunctionProxy>(*MF);
+  Function &Fn = MF->getFunction();
+#ifndef NDEBUG
+  FuncName = Fn.getName();
+  MatchFilterFuncName = isFunctionInPrintList(FuncName);
+#else
+  (void)MatchFilterFuncName;
+#endif
+
+  TII = MF->getSubtarget().getInstrInfo();
+  TLI = MF->getSubtarget().getTargetLowering();
+  RegInfo = &MF->getRegInfo();
+  LibInfo = &FAM.getResult<TargetLibraryAnalysis>(Fn);
+  GFI = Fn.hasGC() ? &FAM.getResult<GCFunctionAnalysis>(Fn) : nullptr;
+  ORE = std::make_unique<OptimizationRemarkEmitter>(&Fn);
+  AC = &FAM.getResult<AssumptionAnalysis>(Fn);
+  auto *PSI = MAMP.getCachedResult<ProfileSummaryAnalysis>(*Fn.getParent());
+  BlockFrequencyInfo *BFI = nullptr;
+  FAM.getResult<BlockFrequencyAnalysis>(Fn);
+  if (PSI && PSI->hasProfileSummary() && OptLevel != CodeGenOptLevel::None)
+    BFI = &FAM.getResult<BlockFrequencyAnalysis>(Fn);
+
+  FunctionVarLocs const *FnVarLocs = nullptr;
+  if (isAssignmentTrackingEnabled(*Fn.getParent()))
+    FnVarLocs = &FAM.getResult<DebugAssignmentTrackingAnalysis>(Fn);
+
+  ISEL_DUMP(dbgs() << "\n\n\n=== " << FuncName << "\n");
+
+  auto *UA = FAM.getCachedResult<UniformityInfoAnalysis>(Fn);
+  CurDAG->init(*MF, *ORE, MFAM, LibInfo, UA, PSI, BFI, FnVarLocs);
+  SwiftError->setFunction(*MF);
+
+  // Now get the optional analyzes if we want to.
+  // This is based on the possibly changed OptLevel (after optnone is taken
+  // into account).  That's unfortunate but OK because it just means we won't
+  // ask for passes that have been required anyway.
+
+  if (UseMBPI && OptLevel != CodeGenOptLevel::None)
+    FuncInfo->BPI = &FAM.getResult<BranchProbabilityAnalysis>(Fn);
+  else
+    FuncInfo->BPI = nullptr;
+
+  if (OptLevel != CodeGenOptLevel::None)
+    AA = &FAM.getResult<AAManager>(Fn);
+  else
+    AA = nullptr;
+
+  SP = &FAM.getResult<SSPLayoutAnalysis>(Fn);
+
+#ifndef NDEBUG
+  TTI = &FAM.getResult<TargetIRAnalysis>(Fn);
+#endif
+}
+
+void SelectionDAGISel::initializeAnalysisResults(MachineFunctionPass &MFP) {
+  Function &Fn = MF->getFunction();
+#ifndef NDEBUG
+  FuncName = Fn.getName();
+  MatchFilterFuncName = isFunctionInPrintList(FuncName);
+#else
+  (void)MatchFilterFuncName;
+#endif
 
   TII = MF->getSubtarget().getInstrInfo();
   TLI = MF->getSubtarget().getTargetLowering();
   RegInfo = &MF->getRegInfo();
-  LibInfo = &getAnalysis<TargetLibraryInfoWrapperPass>().getTLI(Fn);
-  GFI = Fn.hasGC() ? &getAnalysis<GCModuleInfo>().getFunctionInfo(Fn) : nullptr;
+  LibInfo = &MFP.getAnalysis<TargetLibraryInfoWrapperPass>().getTLI(Fn);
+  GFI = Fn.hasGC() ? &MFP.getAnalysis<GCModuleInfo>().getFunctionInfo(Fn)
+                   : nullptr;
   ORE = std::make_unique<OptimizationRemarkEmitter>(&Fn);
-  AC = &getAnalysis<AssumptionCacheTracker>().getAssumptionCache(mf.getFunction());
-  auto *PSI = &getAnalysis<ProfileSummaryInfoWrapperPass>().getPSI();
+  AC = &MFP.getAnalysis<AssumptionCacheTracker>().getAssumptionCache(Fn);
+  auto *PSI = &MFP.getAnalysis<ProfileSummaryInfoWrapperPass>().getPSI();
   BlockFrequencyInfo *BFI = nullptr;
   if (PSI && PSI->hasProfileSummary() && OptLevel != CodeGenOptLevel::None)
-    BFI = &getAnalysis<LazyBlockFrequencyInfoPass>().getBFI();
+    BFI = &MFP.getAnalysis<LazyBlockFrequencyInfoPass>().getBFI();
 
   FunctionVarLocs const *FnVarLocs = nullptr;
   if (isAssignmentTrackingEnabled(*Fn.getParent()))
-    FnVarLocs = getAnalysis<AssignmentTrackingAnalysis>().getResults();
+    FnVarLocs = MFP.getAnalysis<AssignmentTrackingAnalysis>().getResults();
 
   ISEL_DUMP(dbgs() << "\n\n\n=== " << FuncName << "\n");
 
   UniformityInfo *UA = nullptr;
-  if (auto *UAPass = getAnalysisIfAvailable<UniformityInfoWrapperPass>())
+  if (auto *UAPass = MFP.getAnalysisIfAvailable<UniformityInfoWrapperPass>())
     UA = &UAPass->getUniformityInfo();
-  CurDAG->init(*MF, *ORE, this, LibInfo, UA, PSI, BFI, FnVarLocs);
-  FuncInfo->set(Fn, *MF, CurDAG);
+  CurDAG->init(*MF, *ORE, &MFP, LibInfo, UA, PSI, BFI, FnVarLocs);
   SwiftError->setFunction(*MF);
 
   // Now get the optional analyzes if we want to.
@@ -473,15 +578,32 @@ bool SelectionDAGISel::runOnMachineFunction(MachineFunction &mf) {
   // ask for passes that have been required anyway.
 
   if (UseMBPI && OptLevel != CodeGenOptLevel::None)
-    FuncInfo->BPI = &getAnalysis<BranchProbabilityInfoWrapperPass>().getBPI();
+    FuncInfo->BPI =
+        &MFP.getAnalysis<BranchProbabilityInfoWrapperPass>().getBPI();
   else
     FuncInfo->BPI = nullptr;
 
   if (OptLevel != CodeGenOptLevel::None)
-    AA = &getAnalysis<AAResultsWrapperPass>().getAAResults();
+    AA = &MFP.getAnalysis<AAResultsWrapperPass>().getAAResults();
   else
     AA = nullptr;
 
+  SP = &MFP.getAnalysis<StackProtector>().getLayoutInfo();
+
+#ifndef NDEBUG
+  TTI = &MFP.getAnalysis<TargetTransformInfoWrapperPass>().getTTI(Fn);
+#endif
+}
+
+bool SelectionDAGISel::runOnMachineFunction(MachineFunction &mf) {
+  const Function &Fn = mf.getFunction();
+
+  bool InstrRef = mf.shouldUseDebugInstrRef();
+
+  FuncInfo->set(MF->getFunction(), *MF, CurDAG);
+
+  ISEL_DUMP(dbgs() << "\n\n\n=== " << FuncName << '\n');
+
   SDB->init(GFI, AA, AC, LibInfo);
 
   MF->setHasInlineAsm(false);
@@ -779,11 +901,8 @@ void SelectionDAGISel::CodeGenAndEmitDAG() {
   StringRef GroupName = "sdag";
   StringRef GroupDescription = "Instruction Selection and Scheduling";
   std::string BlockName;
-  bool MatchFilterBB = false; (void)MatchFilterBB;
-#ifndef NDEBUG
-  TargetTransformInfo &TTI =
-      getAnalysis<TargetTransformInfoWrapperPass>().getTTI(*FuncInfo->Fn);
-#endif
+  bool MatchFilterBB = false;
+  (void)MatchFilterBB;
 
   // Pre-type legalization allow creation of any node types.
   CurDAG->NewNodesMustHaveLegalTypes = false;
@@ -808,7 +927,7 @@ void SelectionDAGISel::CodeGenAndEmitDAG() {
             CurDAG->dump());
 
 #ifndef NDEBUG
-  if (TTI.hasBranchDivergence())
+  if (TTI->hasBranchDivergence())
     CurDAG->VerifyDAGDivergence();
 #endif
 
@@ -828,7 +947,7 @@ void SelectionDAGISel::CodeGenAndEmitDAG() {
             CurDAG->dump());
 
 #ifndef NDEBUG
-  if (TTI.hasBranchDivergence())
+  if (TTI->hasBranchDivergence())
     CurDAG->VerifyDAGDivergence();
 #endif
 
@@ -850,7 +969,7 @@ void SelectionDAGISel::CodeGenAndEmitDAG() {
             CurDAG->dump());
 
 #ifndef NDEBUG
-  if (TTI.hasBranchDivergence())
+  if (TTI->hasBranchDivergence())
     CurDAG->VerifyDAGDivergence();
 #endif
 
@@ -874,7 +993,7 @@ void SelectionDAGISel::CodeGenAndEmitDAG() {
               CurDAG->dump());
 
 #ifndef NDEBUG
-    if (TTI.hasBranchDivergence())
+    if (TTI->hasBranchDivergence())
       CurDAG->VerifyDAGDivergence();
 #endif
   }
@@ -892,7 +1011,7 @@ void SelectionDAGISel::CodeGenAndEmitDAG() {
               CurDAG->dump());
 
 #ifndef NDEBUG
-    if (TTI.hasBranchDivergence())
+    if (TTI->hasBranchDivergence())
       CurDAG->VerifyDAGDivergence();
 #endif
 
@@ -908,7 +1027,7 @@ void SelectionDAGISel::CodeGenAndEmitDAG() {
               CurDAG->dump());
 
 #ifndef NDEBUG
-    if (TTI.hasBranchDivergence())
+    if (TTI->hasBranchDivergence())
       CurDAG->VerifyDAGDivergence();
 #endif
 
@@ -928,7 +1047,7 @@ void SelectionDAGISel::CodeGenAndEmitDAG() {
               CurDAG->dump());
 
 #ifndef NDEBUG
-    if (TTI.hasBranchDivergence())
+    if (TTI->hasBranchDivergence())
       CurDAG->VerifyDAGDivergence();
 #endif
   }
@@ -948,7 +1067,7 @@ void SelectionDAGISel::CodeGenAndEmitDAG() {
             CurDAG->dump());
 
 #ifndef NDEBUG
-  if (TTI.hasBranchDivergence())
+  if (TTI->hasBranchDivergence())
     CurDAG->VerifyDAGDivergence();
 #endif
 
@@ -968,7 +1087,7 @@ void SelectionDAGISel::CodeGenAndEmitDAG() {
             CurDAG->dump());
 
 #ifndef NDEBUG
-  if (TTI.hasBranchDivergence())
+  if (TTI->hasBranchDivergence())
     CurDAG->VerifyDAGDivergence();
 #endif
 
@@ -1554,7 +1673,6 @@ void SelectionDAGISel::SelectAllBasicBlocks(const Function &Fn) {
   }
 
   // Iterate over all basic blocks in the function.
-  StackProtector &SP = getAnalysis<StackProtector>();
   for (const BasicBlock *LLVMBB : RPOT) {
     if (OptLevel != CodeGenOptLevel::None) {
       bool AllPredsVisited = true;
@@ -1730,7 +1848,7 @@ void SelectionDAGISel::SelectAllBasicBlocks(const Function &Fn) {
       FastIS->recomputeInsertPt();
     }
 
-    if (SP.shouldEmitSDCheck(*LLVMBB)) {
+    if (SP->shouldEmitSDCheck(*LLVMBB)) {
       bool FunctionBasedInstrumentation =
           TLI->getSSPStackGuardCheck(*Fn.getParent());
       SDB->SPDescriptor.initialize(LLVMBB, FuncInfo->MBBMap[LLVMBB],
@@ -1767,7 +1885,7 @@ void SelectionDAGISel::SelectAllBasicBlocks(const Function &Fn) {
   if (Fn.getParent()->getModuleFlag("eh-asynch"))
     reportIPToStateForBlocks(MF);
 
-  SP.copyToMachineFrameInfo(MF->getFrameInfo());
+  SP->copyToMachineFrameInfo(MF->getFrameInfo());
 
   SwiftError->propagateVRegs();
 

>From 1ce7a5a75952816cad7b5078fe44ef11b11d8a87 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:55:40 +0800
Subject: [PATCH 02/25] AArch64 part

---
 llvm/lib/Target/AArch64/AArch64.h             |  2 +-
 .../Target/AArch64/AArch64ISelDAGToDAG.cpp    | 19 +++++++++++++------
 .../Target/AArch64/AArch64TargetMachine.cpp   |  2 +-
 3 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/llvm/lib/Target/AArch64/AArch64.h b/llvm/lib/Target/AArch64/AArch64.h
index f7d81f42ef5d8e..3698617f246590 100644
--- a/llvm/lib/Target/AArch64/AArch64.h
+++ b/llvm/lib/Target/AArch64/AArch64.h
@@ -84,7 +84,7 @@ void initializeAArch64CompressJumpTablesPass(PassRegistry&);
 void initializeAArch64CondBrTuningPass(PassRegistry &);
 void initializeAArch64ConditionOptimizerPass(PassRegistry&);
 void initializeAArch64ConditionalComparesPass(PassRegistry &);
-void initializeAArch64DAGToDAGISelPass(PassRegistry &);
+void initializeAArch64DAGToDAGISelLegacyPass(PassRegistry &);
 void initializeAArch64DeadRegisterDefinitionsPass(PassRegistry&);
 void initializeAArch64ExpandPseudoPass(PassRegistry &);
 void initializeAArch64GlobalsTaggingPass(PassRegistry &);
diff --git a/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp b/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
index 51bec3604026b0..627142df044c95 100644
--- a/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
+++ b/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
@@ -44,13 +44,11 @@ class AArch64DAGToDAGISel : public SelectionDAGISel {
   const AArch64Subtarget *Subtarget;
 
 public:
-  static char ID;
-
   AArch64DAGToDAGISel() = delete;
 
   explicit AArch64DAGToDAGISel(AArch64TargetMachine &tm,
                                CodeGenOptLevel OptLevel)
-      : SelectionDAGISel(ID, tm, OptLevel), Subtarget(nullptr) {}
+      : SelectionDAGISel(tm, OptLevel), Subtarget(nullptr) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override {
     Subtarget = &MF.getSubtarget<AArch64Subtarget>();
@@ -500,11 +498,20 @@ class AArch64DAGToDAGISel : public SelectionDAGISel {
   bool SelectAllActivePredicate(SDValue N);
   bool SelectAnyPredicate(SDValue N);
 };
+
+class AArch64DAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  explicit AArch64DAGToDAGISelLegacy(AArch64TargetMachine &tm,
+                                     CodeGenOptLevel OptLevel)
+      : SelectionDAGISelLegacy(
+            ID, std::make_unique<AArch64DAGToDAGISel>(tm, OptLevel)) {}
+};
 } // end anonymous namespace
 
-char AArch64DAGToDAGISel::ID = 0;
+char AArch64DAGToDAGISelLegacy::ID = 0;
 
-INITIALIZE_PASS(AArch64DAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+INITIALIZE_PASS(AArch64DAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 /// isIntImmediate - This method tests to see if the node is a constant
 /// operand. If so Imm will receive the 32-bit value.
@@ -6794,7 +6801,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) {
 /// AArch64-specific DAG, ready for instruction scheduling.
 FunctionPass *llvm::createAArch64ISelDag(AArch64TargetMachine &TM,
                                          CodeGenOptLevel OptLevel) {
-  return new AArch64DAGToDAGISel(TM, OptLevel);
+  return new AArch64DAGToDAGISelLegacy(TM, OptLevel);
 }
 
 /// When \p PredVT is a scalable vector predicate in the form
diff --git a/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp b/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
index 7d4a57d792a191..3212fd250db405 100644
--- a/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
+++ b/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
@@ -252,7 +252,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeAArch64Target() {
   initializeAArch64StackTaggingPass(*PR);
   initializeAArch64StackTaggingPreRAPass(*PR);
   initializeAArch64LowerHomogeneousPrologEpilogPass(*PR);
-  initializeAArch64DAGToDAGISelPass(*PR);
+  initializeAArch64DAGToDAGISelLegacyPass(*PR);
   initializeAArch64GlobalsTaggingPass(*PR);
 }
 

>From d588dd285a129e9cf934077f0a9f308923f5e8fd Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:55:45 +0800
Subject: [PATCH 03/25] AMDGPU part

---
 llvm/lib/Target/AMDGPU/AMDGPU.h               |  2 +-
 llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp | 27 ++++++++++++-------
 llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.h   | 19 +++++++------
 .../lib/Target/AMDGPU/AMDGPUTargetMachine.cpp |  2 +-
 llvm/lib/Target/AMDGPU/R600ISelDAGToDAG.cpp   | 13 ++++++++-
 5 files changed, 42 insertions(+), 21 deletions(-)

diff --git a/llvm/lib/Target/AMDGPU/AMDGPU.h b/llvm/lib/Target/AMDGPU/AMDGPU.h
index 6016bd5187d887..46cc5f349555ad 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPU.h
+++ b/llvm/lib/Target/AMDGPU/AMDGPU.h
@@ -81,7 +81,7 @@ struct AMDGPUUseNativeCallsPass : PassInfoMixin<AMDGPUUseNativeCallsPass> {
   PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
 };
 
-void initializeAMDGPUDAGToDAGISelPass(PassRegistry&);
+void initializeAMDGPUDAGToDAGISelLegacyPass(PassRegistry &);
 
 void initializeAMDGPUMachineCFGStructurizerPass(PassRegistry&);
 extern char &AMDGPUMachineCFGStructurizerID;
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp b/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
index bba7682cd7a0d1..9a49def48dd49e 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
@@ -98,8 +98,9 @@ static SDValue stripExtractLoElt(SDValue In) {
 
 } // end anonymous namespace
 
-INITIALIZE_PASS_BEGIN(AMDGPUDAGToDAGISel, "amdgpu-isel",
-                      "AMDGPU DAG->DAG Pattern Instruction Selection", false, false)
+INITIALIZE_PASS_BEGIN(AMDGPUDAGToDAGISelLegacy, "amdgpu-isel",
+                      "AMDGPU DAG->DAG Pattern Instruction Selection", false,
+                      false)
 INITIALIZE_PASS_DEPENDENCY(AMDGPUArgumentUsageInfo)
 INITIALIZE_PASS_DEPENDENCY(AMDGPUPerfHintAnalysis)
 INITIALIZE_PASS_DEPENDENCY(UniformityInfoWrapperPass)
@@ -107,19 +108,20 @@ INITIALIZE_PASS_DEPENDENCY(UniformityInfoWrapperPass)
 INITIALIZE_PASS_DEPENDENCY(DominatorTreeWrapperPass)
 INITIALIZE_PASS_DEPENDENCY(LoopInfoWrapperPass)
 #endif
-INITIALIZE_PASS_END(AMDGPUDAGToDAGISel, "amdgpu-isel",
-                    "AMDGPU DAG->DAG Pattern Instruction Selection", false, false)
+INITIALIZE_PASS_END(AMDGPUDAGToDAGISelLegacy, "amdgpu-isel",
+                    "AMDGPU DAG->DAG Pattern Instruction Selection", false,
+                    false)
 
 /// This pass converts a legalized DAG into a AMDGPU-specific
 // DAG, ready for instruction scheduling.
 FunctionPass *llvm::createAMDGPUISelDag(TargetMachine &TM,
                                         CodeGenOptLevel OptLevel) {
-  return new AMDGPUDAGToDAGISel(TM, OptLevel);
+  return new AMDGPUDAGToDAGISelLegacy(TM, OptLevel);
 }
 
 AMDGPUDAGToDAGISel::AMDGPUDAGToDAGISel(TargetMachine &TM,
                                        CodeGenOptLevel OptLevel)
-    : SelectionDAGISel(ID, TM, OptLevel) {
+    : SelectionDAGISel(TM, OptLevel) {
   EnableLateStructurizeCFG = AMDGPUTargetMachine::EnableLateStructurizeCFG;
 }
 
@@ -199,14 +201,14 @@ bool AMDGPUDAGToDAGISel::fp16SrcZerosHighBits(unsigned Opc) const {
   }
 }
 
-void AMDGPUDAGToDAGISel::getAnalysisUsage(AnalysisUsage &AU) const {
+void AMDGPUDAGToDAGISelLegacy::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.addRequired<AMDGPUArgumentUsageInfo>();
   AU.addRequired<UniformityInfoWrapperPass>();
 #ifdef EXPENSIVE_CHECKS
   AU.addRequired<DominatorTreeWrapperPass>();
   AU.addRequired<LoopInfoWrapperPass>();
 #endif
-  SelectionDAGISel::getAnalysisUsage(AU);
+  SelectionDAGISelLegacy::getAnalysisUsage(AU);
 }
 
 bool AMDGPUDAGToDAGISel::matchLoadD16FromBuildVector(SDNode *N) const {
@@ -770,7 +772,7 @@ bool AMDGPUDAGToDAGISel::isBaseWithConstantOffset64(SDValue Addr, SDValue &LHS,
   return false;
 }
 
-StringRef AMDGPUDAGToDAGISel::getPassName() const {
+StringRef AMDGPUDAGToDAGISelLegacy::getPassName() const {
   return "AMDGPU DAG->DAG Pattern Instruction Selection";
 }
 
@@ -3595,4 +3597,9 @@ void AMDGPUDAGToDAGISel::PostprocessISelDAG() {
   } while (IsModified);
 }
 
-char AMDGPUDAGToDAGISel::ID = 0;
+AMDGPUDAGToDAGISelLegacy::AMDGPUDAGToDAGISelLegacy(TargetMachine &TM,
+                                                   CodeGenOptLevel OptLevel)
+    : SelectionDAGISelLegacy(
+          ID, std::make_unique<AMDGPUDAGToDAGISel>(TM, OptLevel)) {}
+
+char AMDGPUDAGToDAGISelLegacy::ID = 0;
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.h b/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.h
index f987b747c0e21b..7d13bf6fda5e3d 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.h
+++ b/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.h
@@ -83,21 +83,14 @@ class AMDGPUDAGToDAGISel : public SelectionDAGISel {
   bool fp16SrcZerosHighBits(unsigned Opc) const;
 
 public:
-  static char ID;
-
   AMDGPUDAGToDAGISel() = delete;
 
   explicit AMDGPUDAGToDAGISel(TargetMachine &TM, CodeGenOptLevel OptLevel);
-  ~AMDGPUDAGToDAGISel() override = default;
-
-  void getAnalysisUsage(AnalysisUsage &AU) const override;
-
-  bool matchLoadD16FromBuildVector(SDNode *N) const;
 
   bool runOnMachineFunction(MachineFunction &MF) override;
+  bool matchLoadD16FromBuildVector(SDNode *N) const;
   void PreprocessISelDAG() override;
   void Select(SDNode *N) override;
-  StringRef getPassName() const override;
   void PostprocessISelDAG() override;
 
 protected:
@@ -287,4 +280,14 @@ class AMDGPUDAGToDAGISel : public SelectionDAGISel {
 #include "AMDGPUGenDAGISel.inc"
 };
 
+class AMDGPUDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+
+  AMDGPUDAGToDAGISelLegacy(TargetMachine &TM, CodeGenOptLevel OptLevel);
+
+  void getAnalysisUsage(AnalysisUsage &AU) const override;
+  StringRef getPassName() const override;
+};
+
 #endif // LLVM_LIB_TARGET_AMDGPU_AMDGPUISELDAGTODAG_H
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp b/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
index f7e552177d6f50..10fc5d0d27ad6d 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
@@ -385,7 +385,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeAMDGPUTarget() {
   initializeR600ExpandSpecialInstrsPassPass(*PR);
   initializeR600VectorRegMergerPass(*PR);
   initializeGlobalISel(*PR);
-  initializeAMDGPUDAGToDAGISelPass(*PR);
+  initializeAMDGPUDAGToDAGISelLegacyPass(*PR);
   initializeGCNDPPCombinePass(*PR);
   initializeSILowerI1CopiesPass(*PR);
   initializeAMDGPUGlobalISelDivergenceLoweringPass(*PR);
diff --git a/llvm/lib/Target/AMDGPU/R600ISelDAGToDAG.cpp b/llvm/lib/Target/AMDGPU/R600ISelDAGToDAG.cpp
index 293db13f34f6ce..28bcf72b3b0911 100644
--- a/llvm/lib/Target/AMDGPU/R600ISelDAGToDAG.cpp
+++ b/llvm/lib/Target/AMDGPU/R600ISelDAGToDAG.cpp
@@ -48,6 +48,17 @@ class R600DAGToDAGISel : public AMDGPUDAGToDAGISel {
   // Include the pieces autogenerated from the target description.
 #include "R600GenDAGISel.inc"
 };
+
+class R600DAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  explicit R600DAGToDAGISelLegacy(TargetMachine &TM, CodeGenOptLevel OptLevel)
+      : SelectionDAGISelLegacy(
+            ID, std::make_unique<R600DAGToDAGISel>(TM, OptLevel)) {}
+};
+
+char R600DAGToDAGISelLegacy::ID = 0;
+
 } // namespace
 
 bool R600DAGToDAGISel::runOnMachineFunction(MachineFunction &MF) {
@@ -184,5 +195,5 @@ bool R600DAGToDAGISel::SelectADDRVTX_READ(SDValue Addr, SDValue &Base,
 // DAG, ready for instruction scheduling.
 FunctionPass *llvm::createR600ISelDag(TargetMachine &TM,
                                       CodeGenOptLevel OptLevel) {
-  return new R600DAGToDAGISel(TM, OptLevel);
+  return new R600DAGToDAGISelLegacy(TM, OptLevel);
 }

>From 1711b629d05afbf61e2da3aeded53f5c113b6655 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:55:49 +0800
Subject: [PATCH 04/25] ARC part

---
 llvm/lib/Target/ARC/ARC.h                |  2 +-
 llvm/lib/Target/ARC/ARCISelDAGToDAG.cpp  | 18 ++++++++++++------
 llvm/lib/Target/ARC/ARCTargetMachine.cpp |  2 +-
 3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/llvm/lib/Target/ARC/ARC.h b/llvm/lib/Target/ARC/ARC.h
index b81016d0cee40d..459f79c6eaccd5 100644
--- a/llvm/lib/Target/ARC/ARC.h
+++ b/llvm/lib/Target/ARC/ARC.h
@@ -27,7 +27,7 @@ FunctionPass *createARCISelDag(ARCTargetMachine &TM, CodeGenOptLevel OptLevel);
 FunctionPass *createARCExpandPseudosPass();
 FunctionPass *createARCOptAddrMode();
 FunctionPass *createARCBranchFinalizePass();
-void initializeARCDAGToDAGISelPass(PassRegistry &);
+void initializeARCDAGToDAGISelLegacyPass(PassRegistry &);
 
 } // end namespace llvm
 
diff --git a/llvm/lib/Target/ARC/ARCISelDAGToDAG.cpp b/llvm/lib/Target/ARC/ARCISelDAGToDAG.cpp
index 17c2d7bb13b47e..5e6cfa539b6d84 100644
--- a/llvm/lib/Target/ARC/ARCISelDAGToDAG.cpp
+++ b/llvm/lib/Target/ARC/ARCISelDAGToDAG.cpp
@@ -41,12 +41,10 @@ namespace {
 
 class ARCDAGToDAGISel : public SelectionDAGISel {
 public:
-  static char ID;
-
   ARCDAGToDAGISel() = delete;
 
   ARCDAGToDAGISel(ARCTargetMachine &TM, CodeGenOptLevel OptLevel)
-      : SelectionDAGISel(ID, TM, OptLevel) {}
+      : SelectionDAGISel(TM, OptLevel) {}
 
   void Select(SDNode *N) override;
 
@@ -60,17 +58,25 @@ class ARCDAGToDAGISel : public SelectionDAGISel {
 #include "ARCGenDAGISel.inc"
 };
 
-char ARCDAGToDAGISel::ID;
+class ARCDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  explicit ARCDAGToDAGISelLegacy(ARCTargetMachine &TM, CodeGenOptLevel OptLevel)
+      : SelectionDAGISelLegacy(
+            ID, std::make_unique<ARCDAGToDAGISel>(TM, OptLevel)) {}
+};
+
+char ARCDAGToDAGISelLegacy::ID;
 
 } // end anonymous namespace
 
-INITIALIZE_PASS(ARCDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+INITIALIZE_PASS(ARCDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 /// This pass converts a legalized DAG into a ARC-specific DAG, ready for
 /// instruction scheduling.
 FunctionPass *llvm::createARCISelDag(ARCTargetMachine &TM,
                                      CodeGenOptLevel OptLevel) {
-  return new ARCDAGToDAGISel(TM, OptLevel);
+  return new ARCDAGToDAGISelLegacy(TM, OptLevel);
 }
 
 bool ARCDAGToDAGISel::SelectAddrModeImm(SDValue Addr, SDValue &Base,
diff --git a/llvm/lib/Target/ARC/ARCTargetMachine.cpp b/llvm/lib/Target/ARC/ARCTargetMachine.cpp
index f50c3c0265e349..5f021cf1f442ec 100644
--- a/llvm/lib/Target/ARC/ARCTargetMachine.cpp
+++ b/llvm/lib/Target/ARC/ARCTargetMachine.cpp
@@ -97,7 +97,7 @@ MachineFunctionInfo *ARCTargetMachine::createMachineFunctionInfo(
 extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeARCTarget() {
   RegisterTargetMachine<ARCTargetMachine> X(getTheARCTarget());
   PassRegistry &PR = *PassRegistry::getPassRegistry();
-  initializeARCDAGToDAGISelPass(PR);
+  initializeARCDAGToDAGISelLegacyPass(PR);
 }
 
 TargetTransformInfo

>From 0d5b990960e58bcd4f9f191574f1bb7b5179560f Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:55:54 +0800
Subject: [PATCH 05/25] ARM part

---
 llvm/lib/Target/ARM/ARM.h                |  2 +-
 llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp  | 18 ++++++++++++------
 llvm/lib/Target/ARM/ARMTargetMachine.cpp |  2 +-
 3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/llvm/lib/Target/ARM/ARM.h b/llvm/lib/Target/ARM/ARM.h
index b96e0182298524..0b7045eadde7fa 100644
--- a/llvm/lib/Target/ARM/ARM.h
+++ b/llvm/lib/Target/ARM/ARM.h
@@ -64,7 +64,7 @@ void LowerARMMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
 void initializeARMBlockPlacementPass(PassRegistry &);
 void initializeARMBranchTargetsPass(PassRegistry &);
 void initializeARMConstantIslandsPass(PassRegistry &);
-void initializeARMDAGToDAGISelPass(PassRegistry &);
+void initializeARMDAGToDAGISelLegacyPass(PassRegistry &);
 void initializeARMExpandPseudoPass(PassRegistry &);
 void initializeARMFixCortexA57AES1742098Pass(PassRegistry &);
 void initializeARMLoadStoreOptPass(PassRegistry &);
diff --git a/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp b/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp
index 20dd3e7baf8498..7ffc64378ef4ba 100644
--- a/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp
+++ b/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp
@@ -59,12 +59,10 @@ class ARMDAGToDAGISel : public SelectionDAGISel {
   const ARMSubtarget *Subtarget;
 
 public:
-  static char ID;
-
   ARMDAGToDAGISel() = delete;
 
   explicit ARMDAGToDAGISel(ARMBaseTargetMachine &tm, CodeGenOptLevel OptLevel)
-      : SelectionDAGISel(ID, tm, OptLevel) {}
+      : SelectionDAGISel(tm, OptLevel) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override {
     // Reset the subtarget each time through.
@@ -362,11 +360,19 @@ class ARMDAGToDAGISel : public SelectionDAGISel {
   /// selected when N would have been selected.
   void replaceDAGValue(const SDValue &N, SDValue M);
 };
+
+class ARMDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  ARMDAGToDAGISelLegacy(ARMBaseTargetMachine &tm, CodeGenOptLevel OptLevel)
+      : SelectionDAGISelLegacy(
+            ID, std::make_unique<ARMDAGToDAGISel>(tm, OptLevel)) {}
+};
 }
 
-char ARMDAGToDAGISel::ID = 0;
+char ARMDAGToDAGISelLegacy::ID = 0;
 
-INITIALIZE_PASS(ARMDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+INITIALIZE_PASS(ARMDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 /// isInt32Immediate - This method tests to see if the node is a 32-bit constant
 /// operand. If so Imm will receive the 32-bit value.
@@ -5886,5 +5892,5 @@ bool ARMDAGToDAGISel::SelectInlineAsmMemoryOperand(
 ///
 FunctionPass *llvm::createARMISelDag(ARMBaseTargetMachine &TM,
                                      CodeGenOptLevel OptLevel) {
-  return new ARMDAGToDAGISel(TM, OptLevel);
+  return new ARMDAGToDAGISelLegacy(TM, OptLevel);
 }
diff --git a/llvm/lib/Target/ARM/ARMTargetMachine.cpp b/llvm/lib/Target/ARM/ARMTargetMachine.cpp
index 4ef00df57ef9ab..7553778c574033 100644
--- a/llvm/lib/Target/ARM/ARMTargetMachine.cpp
+++ b/llvm/lib/Target/ARM/ARMTargetMachine.cpp
@@ -110,7 +110,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeARMTarget() {
   initializeARMSLSHardeningPass(Registry);
   initializeMVELaneInterleavingPass(Registry);
   initializeARMFixCortexA57AES1742098Pass(Registry);
-  initializeARMDAGToDAGISelPass(Registry);
+  initializeARMDAGToDAGISelLegacyPass(Registry);
 }
 
 static std::unique_ptr<TargetLoweringObjectFile> createTLOF(const Triple &TT) {

>From bf47b089bb50d3ff432bd9bd1f915259c6294227 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:55:59 +0800
Subject: [PATCH 06/25] AVR part

---
 llvm/lib/Target/AVR/AVR.h                |  2 +-
 llvm/lib/Target/AVR/AVRISelDAGToDAG.cpp  | 16 ++++++++++++----
 llvm/lib/Target/AVR/AVRTargetMachine.cpp |  2 +-
 3 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/llvm/lib/Target/AVR/AVR.h b/llvm/lib/Target/AVR/AVR.h
index 4b1336ecd6618e..0e67bb4eb50c29 100644
--- a/llvm/lib/Target/AVR/AVR.h
+++ b/llvm/lib/Target/AVR/AVR.h
@@ -31,7 +31,7 @@ FunctionPass *createAVRExpandPseudoPass();
 FunctionPass *createAVRFrameAnalyzerPass();
 FunctionPass *createAVRBranchSelectionPass();
 
-void initializeAVRDAGToDAGISelPass(PassRegistry &);
+void initializeAVRDAGToDAGISelLegacyPass(PassRegistry &);
 void initializeAVRExpandPseudoPass(PassRegistry &);
 void initializeAVRShiftExpandPass(PassRegistry &);
 
diff --git a/llvm/lib/Target/AVR/AVRISelDAGToDAG.cpp b/llvm/lib/Target/AVR/AVRISelDAGToDAG.cpp
index e67a1e2ed50904..d6712eb0b78dbd 100644
--- a/llvm/lib/Target/AVR/AVRISelDAGToDAG.cpp
+++ b/llvm/lib/Target/AVR/AVRISelDAGToDAG.cpp
@@ -34,7 +34,7 @@ class AVRDAGToDAGISel : public SelectionDAGISel {
   AVRDAGToDAGISel() = delete;
 
   AVRDAGToDAGISel(AVRTargetMachine &TM, CodeGenOptLevel OptLevel)
-      : SelectionDAGISel(ID, TM, OptLevel), Subtarget(nullptr) {}
+      : SelectionDAGISel(TM, OptLevel), Subtarget(nullptr) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override;
 
@@ -60,11 +60,19 @@ class AVRDAGToDAGISel : public SelectionDAGISel {
   const AVRSubtarget *Subtarget;
 };
 
+class AVRDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  AVRDAGToDAGISelLegacy(AVRTargetMachine &TM, CodeGenOptLevel OptLevel)
+      : SelectionDAGISelLegacy(
+            ID, std::make_unique<AVRDAGToDAGISel>(TM, OptLevel)) {}
+};
+
 } // namespace
 
-char AVRDAGToDAGISel::ID = 0;
+char AVRDAGToDAGISelLegacy::ID = 0;
 
-INITIALIZE_PASS(AVRDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+INITIALIZE_PASS(AVRDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 bool AVRDAGToDAGISel::runOnMachineFunction(MachineFunction &MF) {
   Subtarget = &MF.getSubtarget<AVRSubtarget>();
@@ -586,5 +594,5 @@ bool AVRDAGToDAGISel::trySelect(SDNode *N) {
 
 FunctionPass *llvm::createAVRISelDag(AVRTargetMachine &TM,
                                      CodeGenOptLevel OptLevel) {
-  return new AVRDAGToDAGISel(TM, OptLevel);
+  return new AVRDAGToDAGISelLegacy(TM, OptLevel);
 }
diff --git a/llvm/lib/Target/AVR/AVRTargetMachine.cpp b/llvm/lib/Target/AVR/AVRTargetMachine.cpp
index e0776a6cab432f..a8c967f865c0c5 100644
--- a/llvm/lib/Target/AVR/AVRTargetMachine.cpp
+++ b/llvm/lib/Target/AVR/AVRTargetMachine.cpp
@@ -95,7 +95,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeAVRTarget() {
   auto &PR = *PassRegistry::getPassRegistry();
   initializeAVRExpandPseudoPass(PR);
   initializeAVRShiftExpandPass(PR);
-  initializeAVRDAGToDAGISelPass(PR);
+  initializeAVRDAGToDAGISelLegacyPass(PR);
 }
 
 const AVRSubtarget *AVRTargetMachine::getSubtargetImpl() const {

>From 836678c282c858cda5b9a14cb17d55ec55cb1c4e Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:56:06 +0800
Subject: [PATCH 07/25] BPF part

---
 llvm/lib/Target/BPF/BPF.h                |  2 +-
 llvm/lib/Target/BPF/BPFISelDAGToDAG.cpp  | 15 +++++++++++----
 llvm/lib/Target/BPF/BPFTargetMachine.cpp |  2 +-
 3 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/llvm/lib/Target/BPF/BPF.h b/llvm/lib/Target/BPF/BPF.h
index bbdbdbbde53228..694d7bacf64211 100644
--- a/llvm/lib/Target/BPF/BPF.h
+++ b/llvm/lib/Target/BPF/BPF.h
@@ -35,7 +35,7 @@ InstructionSelector *createBPFInstructionSelector(const BPFTargetMachine &,
                                                   const BPFRegisterBankInfo &);
 
 void initializeBPFCheckAndAdjustIRPass(PassRegistry&);
-void initializeBPFDAGToDAGISelPass(PassRegistry &);
+void initializeBPFDAGToDAGISelLegacyPass(PassRegistry &);
 void initializeBPFMIPeepholePass(PassRegistry &);
 void initializeBPFMIPreEmitCheckingPass(PassRegistry&);
 void initializeBPFMIPreEmitPeepholePass(PassRegistry &);
diff --git a/llvm/lib/Target/BPF/BPFISelDAGToDAG.cpp b/llvm/lib/Target/BPF/BPFISelDAGToDAG.cpp
index 7b8bcb2c5866da..4cc209bf8ae8df 100644
--- a/llvm/lib/Target/BPF/BPFISelDAGToDAG.cpp
+++ b/llvm/lib/Target/BPF/BPFISelDAGToDAG.cpp
@@ -51,7 +51,7 @@ class BPFDAGToDAGISel : public SelectionDAGISel {
   BPFDAGToDAGISel() = delete;
 
   explicit BPFDAGToDAGISel(BPFTargetMachine &TM)
-      : SelectionDAGISel(ID, TM), Subtarget(nullptr) {}
+      : SelectionDAGISel(TM), Subtarget(nullptr) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override {
     // Reset the subtarget each time through.
@@ -94,11 +94,18 @@ class BPFDAGToDAGISel : public SelectionDAGISel {
   // Mapping from ConstantStruct global value to corresponding byte-list values
   std::map<const void *, val_vec_type> cs_vals_;
 };
+
+class BPFDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  BPFDAGToDAGISelLegacy(BPFTargetMachine &TM)
+      : SelectionDAGISelLegacy(ID, std::make_unique<BPFDAGToDAGISel>(TM)) {}
+};
 } // namespace
 
-char BPFDAGToDAGISel::ID = 0;
+char BPFDAGToDAGISelLegacy::ID = 0;
 
-INITIALIZE_PASS(BPFDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+INITIALIZE_PASS(BPFDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 // ComplexPattern used on BPF Load/Store instructions
 bool BPFDAGToDAGISel::SelectAddr(SDValue Addr, SDValue &Base, SDValue &Offset) {
@@ -489,5 +496,5 @@ void BPFDAGToDAGISel::PreprocessTrunc(SDNode *Node,
 }
 
 FunctionPass *llvm::createBPFISelDag(BPFTargetMachine &TM) {
-  return new BPFDAGToDAGISel(TM);
+  return new BPFDAGToDAGISelLegacy(TM);
 }
diff --git a/llvm/lib/Target/BPF/BPFTargetMachine.cpp b/llvm/lib/Target/BPF/BPFTargetMachine.cpp
index a7bed69b0f2ab6..7b73c9f4a1e4cf 100644
--- a/llvm/lib/Target/BPF/BPFTargetMachine.cpp
+++ b/llvm/lib/Target/BPF/BPFTargetMachine.cpp
@@ -48,7 +48,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeBPFTarget() {
   initializeGlobalISel(PR);
   initializeBPFCheckAndAdjustIRPass(PR);
   initializeBPFMIPeepholePass(PR);
-  initializeBPFDAGToDAGISelPass(PR);
+  initializeBPFDAGToDAGISelLegacyPass(PR);
 }
 
 // DataLayout: little or big endian

>From 8570acf6ef274de639cdae48232c08e9fb728e61 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:56:12 +0800
Subject: [PATCH 08/25] CSKY part

---
 llvm/lib/Target/CSKY/CSKY.h                |  2 +-
 llvm/lib/Target/CSKY/CSKYISelDAGToDAG.cpp  | 19 +++++++++++++------
 llvm/lib/Target/CSKY/CSKYTargetMachine.cpp |  2 +-
 3 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/llvm/lib/Target/CSKY/CSKY.h b/llvm/lib/Target/CSKY/CSKY.h
index 7ca630c9abaaf0..21ebf13f206449 100644
--- a/llvm/lib/Target/CSKY/CSKY.h
+++ b/llvm/lib/Target/CSKY/CSKY.h
@@ -27,7 +27,7 @@ FunctionPass *createCSKYISelDag(CSKYTargetMachine &TM,
 FunctionPass *createCSKYConstantIslandPass();
 
 void initializeCSKYConstantIslandsPass(PassRegistry &);
-void initializeCSKYDAGToDAGISelPass(PassRegistry &);
+void initializeCSKYDAGToDAGISelLegacyPass(PassRegistry &);
 
 } // namespace llvm
 
diff --git a/llvm/lib/Target/CSKY/CSKYISelDAGToDAG.cpp b/llvm/lib/Target/CSKY/CSKYISelDAGToDAG.cpp
index c0c23a45d15514..22da80b3eddccc 100644
--- a/llvm/lib/Target/CSKY/CSKYISelDAGToDAG.cpp
+++ b/llvm/lib/Target/CSKY/CSKYISelDAGToDAG.cpp
@@ -28,10 +28,8 @@ class CSKYDAGToDAGISel : public SelectionDAGISel {
   const CSKYSubtarget *Subtarget;
 
 public:
-  static char ID;
-
   explicit CSKYDAGToDAGISel(CSKYTargetMachine &TM, CodeGenOptLevel OptLevel)
-      : SelectionDAGISel(ID, TM, OptLevel) {}
+      : SelectionDAGISel(TM, OptLevel) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override {
     // Reset the subtarget each time through.
@@ -54,11 +52,20 @@ class CSKYDAGToDAGISel : public SelectionDAGISel {
 
 #include "CSKYGenDAGISel.inc"
 };
+
+class CSKYDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  explicit CSKYDAGToDAGISelLegacy(CSKYTargetMachine &TM,
+                                  CodeGenOptLevel OptLevel)
+      : SelectionDAGISelLegacy(
+            ID, std::make_unique<CSKYDAGToDAGISel>(TM, OptLevel)) {}
+};
 } // namespace
 
-char CSKYDAGToDAGISel::ID = 0;
+char CSKYDAGToDAGISelLegacy::ID = 0;
 
-INITIALIZE_PASS(CSKYDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+INITIALIZE_PASS(CSKYDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 void CSKYDAGToDAGISel::Select(SDNode *N) {
   // If we have a custom node, we have already selected
@@ -401,5 +408,5 @@ bool CSKYDAGToDAGISel::SelectInlineAsmMemoryOperand(
 
 FunctionPass *llvm::createCSKYISelDag(CSKYTargetMachine &TM,
                                       CodeGenOptLevel OptLevel) {
-  return new CSKYDAGToDAGISel(TM, OptLevel);
+  return new CSKYDAGToDAGISelLegacy(TM, OptLevel);
 }
diff --git a/llvm/lib/Target/CSKY/CSKYTargetMachine.cpp b/llvm/lib/Target/CSKY/CSKYTargetMachine.cpp
index 0bbfabe93147c5..a756061e307a44 100644
--- a/llvm/lib/Target/CSKY/CSKYTargetMachine.cpp
+++ b/llvm/lib/Target/CSKY/CSKYTargetMachine.cpp
@@ -30,7 +30,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeCSKYTarget() {
 
   PassRegistry *Registry = PassRegistry::getPassRegistry();
   initializeCSKYConstantIslandsPass(*Registry);
-  initializeCSKYDAGToDAGISelPass(*Registry);
+  initializeCSKYDAGToDAGISelLegacyPass(*Registry);
 }
 
 static std::string computeDataLayout(const Triple &TT) {

>From 530a08caa6268fd369aed5dafa843a0bacccaad2 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:56:17 +0800
Subject: [PATCH 09/25] Hexagon part

---
 llvm/lib/Target/Hexagon/Hexagon.h                |  2 +-
 llvm/lib/Target/Hexagon/HexagonISelDAGToDAG.cpp  | 11 ++++++++---
 llvm/lib/Target/Hexagon/HexagonISelDAGToDAG.h    | 12 +++++++++---
 llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp |  2 +-
 4 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/llvm/lib/Target/Hexagon/Hexagon.h b/llvm/lib/Target/Hexagon/Hexagon.h
index 861f61a0bfd23f..4a290c798c27eb 100644
--- a/llvm/lib/Target/Hexagon/Hexagon.h
+++ b/llvm/lib/Target/Hexagon/Hexagon.h
@@ -22,7 +22,7 @@ namespace llvm {
   /// Creates a Hexagon-specific Target Transformation Info pass.
   ImmutablePass *createHexagonTargetTransformInfoPass(const HexagonTargetMachine *TM);
 
-  void initializeHexagonDAGToDAGISelPass(PassRegistry &);
+  void initializeHexagonDAGToDAGISelLegacyPass(PassRegistry &);
 } // end namespace llvm;
 
 #endif
diff --git a/llvm/lib/Target/Hexagon/HexagonISelDAGToDAG.cpp b/llvm/lib/Target/Hexagon/HexagonISelDAGToDAG.cpp
index 6fe3fe0d36b9e7..febbc95ec0db4c 100644
--- a/llvm/lib/Target/Hexagon/HexagonISelDAGToDAG.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonISelDAGToDAG.cpp
@@ -60,13 +60,18 @@ namespace llvm {
 /// Hexagon-specific DAG, ready for instruction scheduling.
 FunctionPass *createHexagonISelDag(HexagonTargetMachine &TM,
                                    CodeGenOptLevel OptLevel) {
-  return new HexagonDAGToDAGISel(TM, OptLevel);
+  return new HexagonDAGToDAGISelLegacy(TM, OptLevel);
 }
 }
 
-char HexagonDAGToDAGISel::ID = 0;
+HexagonDAGToDAGISelLegacy::HexagonDAGToDAGISelLegacy(HexagonTargetMachine &tm,
+                                                     CodeGenOptLevel OptLevel)
+    : SelectionDAGISelLegacy(
+          ID, std::make_unique<HexagonDAGToDAGISel>(tm, OptLevel)) {}
 
-INITIALIZE_PASS(HexagonDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+char HexagonDAGToDAGISelLegacy::ID = 0;
+
+INITIALIZE_PASS(HexagonDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 void HexagonDAGToDAGISel::SelectIndexedLoad(LoadSDNode *LD, const SDLoc &dl) {
   SDValue Chain = LD->getChain();
diff --git a/llvm/lib/Target/Hexagon/HexagonISelDAGToDAG.h b/llvm/lib/Target/Hexagon/HexagonISelDAGToDAG.h
index 50162b10799643..2d23aeecda6d83 100644
--- a/llvm/lib/Target/Hexagon/HexagonISelDAGToDAG.h
+++ b/llvm/lib/Target/Hexagon/HexagonISelDAGToDAG.h
@@ -29,14 +29,13 @@ class HexagonDAGToDAGISel : public SelectionDAGISel {
   const HexagonSubtarget *HST;
   const HexagonInstrInfo *HII;
   const HexagonRegisterInfo *HRI;
-public:
-  static char ID;
 
+public:
   HexagonDAGToDAGISel() = delete;
 
   explicit HexagonDAGToDAGISel(HexagonTargetMachine &tm,
                                CodeGenOptLevel OptLevel)
-      : SelectionDAGISel(ID, tm, OptLevel), HST(nullptr), HII(nullptr),
+      : SelectionDAGISel(tm, OptLevel), HST(nullptr), HII(nullptr),
         HRI(nullptr) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override {
@@ -162,6 +161,13 @@ class HexagonDAGToDAGISel : public SelectionDAGISel {
   SDValue balanceSubTree(SDNode *N, bool Factorize = false);
   void rebalanceAddressTrees();
 }; // end HexagonDAGToDAGISel
+
+class HexagonDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  explicit HexagonDAGToDAGISelLegacy(HexagonTargetMachine &tm,
+                                     CodeGenOptLevel OptLevel);
+};
 }
 
 #endif // LLVM_LIB_TARGET_HEXAGON_HEXAGONISELDAGTODAG_H
diff --git a/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp b/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
index e64d7e52a9aa9b..8e95d954ee9d90 100644
--- a/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
@@ -238,7 +238,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeHexagonTarget() {
   initializeHexagonVectorCombineLegacyPass(PR);
   initializeHexagonVectorLoopCarriedReuseLegacyPassPass(PR);
   initializeHexagonVExtractPass(PR);
-  initializeHexagonDAGToDAGISelPass(PR);
+  initializeHexagonDAGToDAGISelLegacyPass(PR);
 }
 
 HexagonTargetMachine::HexagonTargetMachine(const Target &T, const Triple &TT,

>From fab28e110c9c19524f9e7751944ff3bf45bbafd7 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:56:23 +0800
Subject: [PATCH 10/25] Lanai part

---
 llvm/lib/Target/Lanai/Lanai.h                |  2 +-
 llvm/lib/Target/Lanai/LanaiISelDAGToDAG.cpp  | 19 +++++++++++--------
 llvm/lib/Target/Lanai/LanaiTargetMachine.cpp |  2 +-
 3 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/llvm/lib/Target/Lanai/Lanai.h b/llvm/lib/Target/Lanai/Lanai.h
index 0f87b17b773e38..72a7efc58062d9 100644
--- a/llvm/lib/Target/Lanai/Lanai.h
+++ b/llvm/lib/Target/Lanai/Lanai.h
@@ -37,7 +37,7 @@ FunctionPass *createLanaiMemAluCombinerPass();
 // operations.
 FunctionPass *createLanaiSetflagAluCombinerPass();
 
-void initializeLanaiDAGToDAGISelPass(PassRegistry &);
+void initializeLanaiDAGToDAGISelLegacyPass(PassRegistry &);
 
 } // namespace llvm
 
diff --git a/llvm/lib/Target/Lanai/LanaiISelDAGToDAG.cpp b/llvm/lib/Target/Lanai/LanaiISelDAGToDAG.cpp
index 6f5495ac00e157..84b57d90af8997 100644
--- a/llvm/lib/Target/Lanai/LanaiISelDAGToDAG.cpp
+++ b/llvm/lib/Target/Lanai/LanaiISelDAGToDAG.cpp
@@ -53,11 +53,7 @@ class LanaiDAGToDAGISel : public SelectionDAGISel {
   LanaiDAGToDAGISel() = delete;
 
   explicit LanaiDAGToDAGISel(LanaiTargetMachine &TargetMachine)
-      : SelectionDAGISel(ID, TargetMachine) {}
-
-  bool runOnMachineFunction(MachineFunction &MF) override {
-    return SelectionDAGISel::runOnMachineFunction(MF);
-  }
+      : SelectionDAGISel(TargetMachine) {}
 
   bool SelectInlineAsmMemoryOperand(const SDValue &Op,
                                     InlineAsm::ConstraintCode ConstraintCode,
@@ -97,11 +93,18 @@ bool canBeRepresentedAsSls(const ConstantSDNode &CN) {
   return isInt<21>(CN.getSExtValue()) && ((CN.getSExtValue() & 0x3) == 0);
 }
 
+class LanaiDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  explicit LanaiDAGToDAGISelLegacy(LanaiTargetMachine &TM)
+      : SelectionDAGISelLegacy(ID, std::make_unique<LanaiDAGToDAGISel>(TM)) {}
+};
+
 } // namespace
 
-char LanaiDAGToDAGISel::ID = 0;
+char LanaiDAGToDAGISelLegacy::ID = 0;
 
-INITIALIZE_PASS(LanaiDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+INITIALIZE_PASS(LanaiDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 // Helper functions for ComplexPattern used on LanaiInstrInfo
 // Used on Lanai Load/Store instructions.
@@ -366,5 +369,5 @@ void LanaiDAGToDAGISel::selectFrameIndex(SDNode *Node) {
 // createLanaiISelDag - This pass converts a legalized DAG into a
 // Lanai-specific DAG, ready for instruction scheduling.
 FunctionPass *llvm::createLanaiISelDag(LanaiTargetMachine &TM) {
-  return new LanaiDAGToDAGISel(TM);
+  return new LanaiDAGToDAGISelLegacy(TM);
 }
diff --git a/llvm/lib/Target/Lanai/LanaiTargetMachine.cpp b/llvm/lib/Target/Lanai/LanaiTargetMachine.cpp
index 2357221b0120f9..68eb12f87d89a0 100644
--- a/llvm/lib/Target/Lanai/LanaiTargetMachine.cpp
+++ b/llvm/lib/Target/Lanai/LanaiTargetMachine.cpp
@@ -37,7 +37,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeLanaiTarget() {
   RegisterTargetMachine<LanaiTargetMachine> registered_target(
       getTheLanaiTarget());
   PassRegistry &PR = *PassRegistry::getPassRegistry();
-  initializeLanaiDAGToDAGISelPass(PR);
+  initializeLanaiDAGToDAGISelLegacyPass(PR);
 }
 
 static std::string computeDataLayout() {

>From 6617917c6865103ea7e34ae1d47a898152908d0f Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:56:29 +0800
Subject: [PATCH 11/25] LoongArch part

---
 llvm/lib/Target/LoongArch/LoongArch.h                |  2 +-
 llvm/lib/Target/LoongArch/LoongArchISelDAGToDAG.cpp  | 11 ++++++++---
 llvm/lib/Target/LoongArch/LoongArchISelDAGToDAG.h    |  8 +++++++-
 llvm/lib/Target/LoongArch/LoongArchTargetMachine.cpp |  2 +-
 4 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/llvm/lib/Target/LoongArch/LoongArch.h b/llvm/lib/Target/LoongArch/LoongArch.h
index 09ca089c91151b..ab6932cc0c2d7f 100644
--- a/llvm/lib/Target/LoongArch/LoongArch.h
+++ b/llvm/lib/Target/LoongArch/LoongArch.h
@@ -37,7 +37,7 @@ FunctionPass *createLoongArchExpandAtomicPseudoPass();
 FunctionPass *createLoongArchISelDag(LoongArchTargetMachine &TM);
 FunctionPass *createLoongArchPreRAExpandPseudoPass();
 FunctionPass *createLoongArchExpandPseudoPass();
-void initializeLoongArchDAGToDAGISelPass(PassRegistry &);
+void initializeLoongArchDAGToDAGISelLegacyPass(PassRegistry &);
 void initializeLoongArchExpandAtomicPseudoPass(PassRegistry &);
 void initializeLoongArchPreRAExpandPseudoPass(PassRegistry &);
 void initializeLoongArchExpandPseudoPass(PassRegistry &);
diff --git a/llvm/lib/Target/LoongArch/LoongArchISelDAGToDAG.cpp b/llvm/lib/Target/LoongArch/LoongArchISelDAGToDAG.cpp
index 726856bda5dc59..b6ade6b978d2ce 100644
--- a/llvm/lib/Target/LoongArch/LoongArchISelDAGToDAG.cpp
+++ b/llvm/lib/Target/LoongArch/LoongArchISelDAGToDAG.cpp
@@ -22,9 +22,14 @@ using namespace llvm;
 #define DEBUG_TYPE "loongarch-isel"
 #define PASS_NAME "LoongArch DAG->DAG Pattern Instruction Selection"
 
-char LoongArchDAGToDAGISel::ID;
+char LoongArchDAGToDAGISelLegacy::ID;
 
-INITIALIZE_PASS(LoongArchDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+LoongArchDAGToDAGISelLegacy::LoongArchDAGToDAGISelLegacy(
+    LoongArchTargetMachine &TM)
+    : SelectionDAGISelLegacy(ID, std::make_unique<LoongArchDAGToDAGISel>(TM)) {}
+
+INITIALIZE_PASS(LoongArchDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false,
+                false)
 
 void LoongArchDAGToDAGISel::Select(SDNode *Node) {
   // If we have a custom node, we have already selected.
@@ -414,5 +419,5 @@ bool LoongArchDAGToDAGISel::selectVSplatUimmPow2(SDValue N,
 // This pass converts a legalized DAG into a LoongArch-specific DAG, ready
 // for instruction scheduling.
 FunctionPass *llvm::createLoongArchISelDag(LoongArchTargetMachine &TM) {
-  return new LoongArchDAGToDAGISel(TM);
+  return new LoongArchDAGToDAGISelLegacy(TM);
 }
diff --git a/llvm/lib/Target/LoongArch/LoongArchISelDAGToDAG.h b/llvm/lib/Target/LoongArch/LoongArchISelDAGToDAG.h
index 48a178bfeb95f9..5c199a57de48ab 100644
--- a/llvm/lib/Target/LoongArch/LoongArchISelDAGToDAG.h
+++ b/llvm/lib/Target/LoongArch/LoongArchISelDAGToDAG.h
@@ -29,7 +29,7 @@ class LoongArchDAGToDAGISel : public SelectionDAGISel {
   LoongArchDAGToDAGISel() = delete;
 
   explicit LoongArchDAGToDAGISel(LoongArchTargetMachine &TM)
-      : SelectionDAGISel(ID, TM) {}
+      : SelectionDAGISel(TM) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override {
     Subtarget = &MF.getSubtarget<LoongArchSubtarget>();
@@ -69,6 +69,12 @@ class LoongArchDAGToDAGISel : public SelectionDAGISel {
 #include "LoongArchGenDAGISel.inc"
 };
 
+class LoongArchDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  explicit LoongArchDAGToDAGISelLegacy(LoongArchTargetMachine &TM);
+};
+
 } // end namespace llvm
 
 #endif // LLVM_LIB_TARGET_LOONGARCH_LOONGARCHISELDAGTODAG_H
diff --git a/llvm/lib/Target/LoongArch/LoongArchTargetMachine.cpp b/llvm/lib/Target/LoongArch/LoongArchTargetMachine.cpp
index e5494488e11357..f022610728c695 100644
--- a/llvm/lib/Target/LoongArch/LoongArchTargetMachine.cpp
+++ b/llvm/lib/Target/LoongArch/LoongArchTargetMachine.cpp
@@ -35,7 +35,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeLoongArchTarget() {
   RegisterTargetMachine<LoongArchTargetMachine> Y(getTheLoongArch64Target());
   auto *PR = PassRegistry::getPassRegistry();
   initializeLoongArchPreRAExpandPseudoPass(*PR);
-  initializeLoongArchDAGToDAGISelPass(*PR);
+  initializeLoongArchDAGToDAGISelLegacyPass(*PR);
 }
 
 static cl::opt<bool>

>From fa7f05ee0615b37a10e92bc0f8861a5494b8f339 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:56:36 +0800
Subject: [PATCH 12/25] M68k part

---
 llvm/lib/Target/M68k/M68k.h                |  2 +-
 llvm/lib/Target/M68k/M68kISelDAGToDAG.cpp  | 17 +++++++++++------
 llvm/lib/Target/M68k/M68kTargetMachine.cpp |  2 +-
 3 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/llvm/lib/Target/M68k/M68k.h b/llvm/lib/Target/M68k/M68k.h
index 1d0f383dc5c94b..5db9d796d1d3c6 100644
--- a/llvm/lib/Target/M68k/M68k.h
+++ b/llvm/lib/Target/M68k/M68k.h
@@ -46,7 +46,7 @@ InstructionSelector *
 createM68kInstructionSelector(const M68kTargetMachine &, const M68kSubtarget &,
                               const M68kRegisterBankInfo &);
 
-void initializeM68kDAGToDAGISelPass(PassRegistry &);
+void initializeM68kDAGToDAGISelLegacyPass(PassRegistry &);
 void initializeM68kExpandPseudoPass(PassRegistry &);
 void initializeM68kGlobalBaseRegPass(PassRegistry &);
 void initializeM68kCollapseMOVEMPass(PassRegistry &);
diff --git a/llvm/lib/Target/M68k/M68kISelDAGToDAG.cpp b/llvm/lib/Target/M68k/M68kISelDAGToDAG.cpp
index e3aa9cb508479d..dc89fec8108c2d 100644
--- a/llvm/lib/Target/M68k/M68kISelDAGToDAG.cpp
+++ b/llvm/lib/Target/M68k/M68kISelDAGToDAG.cpp
@@ -174,12 +174,10 @@ namespace {
 
 class M68kDAGToDAGISel : public SelectionDAGISel {
 public:
-  static char ID;
-
   M68kDAGToDAGISel() = delete;
 
   explicit M68kDAGToDAGISel(M68kTargetMachine &TM)
-      : SelectionDAGISel(ID, TM), Subtarget(nullptr) {}
+      : SelectionDAGISel(TM), Subtarget(nullptr) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override;
   bool IsProfitableToFold(SDValue N, SDNode *U, SDNode *Root) const override;
@@ -316,11 +314,18 @@ class M68kDAGToDAGISel : public SelectionDAGISel {
   SDNode *getGlobalBaseReg();
 };
 
-char M68kDAGToDAGISel::ID;
+class M68kDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  explicit M68kDAGToDAGISelLegacy(M68kTargetMachine &TM)
+      : SelectionDAGISelLegacy(ID, std::make_unique<M68kDAGToDAGISel>(TM)) {}
+};
+
+char M68kDAGToDAGISelLegacy::ID;
 
 } // namespace
 
-INITIALIZE_PASS(M68kDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+INITIALIZE_PASS(M68kDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 bool M68kDAGToDAGISel::IsProfitableToFold(SDValue N, SDNode *U,
                                           SDNode *Root) const {
@@ -357,7 +362,7 @@ bool M68kDAGToDAGISel::runOnMachineFunction(MachineFunction &MF) {
 /// This pass converts a legalized DAG into a M68k-specific DAG,
 /// ready for instruction scheduling.
 FunctionPass *llvm::createM68kISelDag(M68kTargetMachine &TM) {
-  return new M68kDAGToDAGISel(TM);
+  return new M68kDAGToDAGISelLegacy(TM);
 }
 
 static bool doesDispFitFI(M68kISelAddressMode &AM) {
diff --git a/llvm/lib/Target/M68k/M68kTargetMachine.cpp b/llvm/lib/Target/M68k/M68kTargetMachine.cpp
index bbbcb1556ed557..b65de5e177b53e 100644
--- a/llvm/lib/Target/M68k/M68kTargetMachine.cpp
+++ b/llvm/lib/Target/M68k/M68kTargetMachine.cpp
@@ -37,7 +37,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeM68kTarget() {
   RegisterTargetMachine<M68kTargetMachine> X(getTheM68kTarget());
   auto *PR = PassRegistry::getPassRegistry();
   initializeGlobalISel(*PR);
-  initializeM68kDAGToDAGISelPass(*PR);
+  initializeM68kDAGToDAGISelLegacyPass(*PR);
   initializeM68kExpandPseudoPass(*PR);
   initializeM68kGlobalBaseRegPass(*PR);
   initializeM68kCollapseMOVEMPass(*PR);

>From 00198e07108d387ea9cfb3b1fa484d169996bf40 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:56:41 +0800
Subject: [PATCH 13/25] Mips part

---
 llvm/lib/Target/Mips/Mips.h                 |  2 +-
 llvm/lib/Target/Mips/Mips16ISelDAGToDAG.cpp |  6 +++++-
 llvm/lib/Target/Mips/Mips16ISelDAGToDAG.h   |  5 +++++
 llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp   | 12 ++++++++----
 llvm/lib/Target/Mips/MipsISelDAGToDAG.h     | 13 ++++++++-----
 llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp | 10 +++++++---
 llvm/lib/Target/Mips/MipsSEISelDAGToDAG.h   |  8 ++++++--
 llvm/lib/Target/Mips/MipsTargetMachine.cpp  |  2 +-
 8 files changed, 41 insertions(+), 17 deletions(-)

diff --git a/llvm/lib/Target/Mips/Mips.h b/llvm/lib/Target/Mips/Mips.h
index f0cf039928c172..36a17334ae3b9a 100644
--- a/llvm/lib/Target/Mips/Mips.h
+++ b/llvm/lib/Target/Mips/Mips.h
@@ -47,7 +47,7 @@ InstructionSelector *createMipsInstructionSelector(const MipsTargetMachine &,
 
 void initializeMicroMipsSizeReducePass(PassRegistry &);
 void initializeMipsBranchExpansionPass(PassRegistry &);
-void initializeMipsDAGToDAGISelPass(PassRegistry &);
+void initializeMipsDAGToDAGISelLegacyPass(PassRegistry &);
 void initializeMipsDelaySlotFillerPass(PassRegistry &);
 void initializeMipsMulMulBugFixPass(PassRegistry &);
 void initializeMipsPostLegalizerCombinerPass(PassRegistry &);
diff --git a/llvm/lib/Target/Mips/Mips16ISelDAGToDAG.cpp b/llvm/lib/Target/Mips/Mips16ISelDAGToDAG.cpp
index 0be9b94187a2ef..b8e6dcefe622a5 100644
--- a/llvm/lib/Target/Mips/Mips16ISelDAGToDAG.cpp
+++ b/llvm/lib/Target/Mips/Mips16ISelDAGToDAG.cpp
@@ -219,7 +219,11 @@ bool Mips16DAGToDAGISel::trySelect(SDNode *Node) {
   return false;
 }
 
+Mips16DAGToDAGISelLegacy::Mips16DAGToDAGISelLegacy(MipsTargetMachine &TM,
+                                                   CodeGenOptLevel OL)
+    : MipsDAGToDAGISelLegacy(std::make_unique<Mips16DAGToDAGISel>(TM, OL)) {}
+
 FunctionPass *llvm::createMips16ISelDag(MipsTargetMachine &TM,
                                         CodeGenOptLevel OptLevel) {
-  return new Mips16DAGToDAGISel(TM, OptLevel);
+  return new Mips16DAGToDAGISelLegacy(TM, OptLevel);
 }
diff --git a/llvm/lib/Target/Mips/Mips16ISelDAGToDAG.h b/llvm/lib/Target/Mips/Mips16ISelDAGToDAG.h
index c6d3bde68806ea..ec6e74568c5616 100644
--- a/llvm/lib/Target/Mips/Mips16ISelDAGToDAG.h
+++ b/llvm/lib/Target/Mips/Mips16ISelDAGToDAG.h
@@ -47,6 +47,11 @@ class Mips16DAGToDAGISel : public MipsDAGToDAGISel {
   void initMips16SPAliasReg(MachineFunction &MF);
 };
 
+class Mips16DAGToDAGISelLegacy : public MipsDAGToDAGISelLegacy {
+public:
+  explicit Mips16DAGToDAGISelLegacy(MipsTargetMachine &TM, CodeGenOptLevel OL);
+};
+
 FunctionPass *createMips16ISelDag(MipsTargetMachine &TM,
                                   CodeGenOptLevel OptLevel);
 }
diff --git a/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp b/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp
index 01b41f3b21593f..f6f32fde3b7778 100644
--- a/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp
+++ b/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp
@@ -49,11 +49,11 @@ using namespace llvm;
 // instructions for SelectionDAG operations.
 //===----------------------------------------------------------------------===//
 
-void MipsDAGToDAGISel::getAnalysisUsage(AnalysisUsage &AU) const {
+void MipsDAGToDAGISelLegacy::getAnalysisUsage(AnalysisUsage &AU) const {
   // There are multiple MipsDAGToDAGISel instances added to the pass pipeline.
   // We need to preserve StackProtector for the next one.
   AU.addPreserved<StackProtector>();
-  SelectionDAGISel::getAnalysisUsage(AU);
+  SelectionDAGISelLegacy::getAnalysisUsage(AU);
 }
 
 bool MipsDAGToDAGISel::runOnMachineFunction(MachineFunction &MF) {
@@ -344,6 +344,10 @@ bool MipsDAGToDAGISel::isUnneededShiftMask(SDNode *N,
   return (Known.Zero | RHS).countr_one() >= ShAmtBits;
 }
 
-char MipsDAGToDAGISel::ID = 0;
+char MipsDAGToDAGISelLegacy::ID = 0;
 
-INITIALIZE_PASS(MipsDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+MipsDAGToDAGISelLegacy::MipsDAGToDAGISelLegacy(
+    std::unique_ptr<SelectionDAGISel> S)
+    : SelectionDAGISelLegacy(ID, std::move(S)) {}
+
+INITIALIZE_PASS(MipsDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
diff --git a/llvm/lib/Target/Mips/MipsISelDAGToDAG.h b/llvm/lib/Target/Mips/MipsISelDAGToDAG.h
index 52207d0f628493..6135f968078542 100644
--- a/llvm/lib/Target/Mips/MipsISelDAGToDAG.h
+++ b/llvm/lib/Target/Mips/MipsISelDAGToDAG.h
@@ -30,17 +30,13 @@ namespace llvm {
 
 class MipsDAGToDAGISel : public SelectionDAGISel {
 public:
-  static char ID;
-
   MipsDAGToDAGISel() = delete;
 
   explicit MipsDAGToDAGISel(MipsTargetMachine &TM, CodeGenOptLevel OL)
-      : SelectionDAGISel(ID, TM, OL), Subtarget(nullptr) {}
+      : SelectionDAGISel(TM, OL), Subtarget(nullptr) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override;
 
-  void getAnalysisUsage(AnalysisUsage &AU) const override;
-
 protected:
   SDNode *getGlobalBaseReg();
 
@@ -145,6 +141,13 @@ class MipsDAGToDAGISel : public SelectionDAGISel {
                                     std::vector<SDValue> &OutOps) override;
   bool isUnneededShiftMask(SDNode *N, unsigned ShAmtBits) const;
 };
+
+class MipsDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  MipsDAGToDAGISelLegacy(std::unique_ptr<SelectionDAGISel> S);
+  void getAnalysisUsage(AnalysisUsage &AU) const override;
+};
 }
 
 #endif
diff --git a/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp b/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp
index ab39d1b661ef9a..7ad300c6cccd45 100644
--- a/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp
+++ b/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp
@@ -44,9 +44,9 @@ bool MipsSEDAGToDAGISel::runOnMachineFunction(MachineFunction &MF) {
   return MipsDAGToDAGISel::runOnMachineFunction(MF);
 }
 
-void MipsSEDAGToDAGISel::getAnalysisUsage(AnalysisUsage &AU) const {
+void MipsSEDAGToDAGISelLegacy::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.addRequired<DominatorTreeWrapperPass>();
-  SelectionDAGISel::getAnalysisUsage(AU);
+  SelectionDAGISelLegacy::getAnalysisUsage(AU);
 }
 
 void MipsSEDAGToDAGISel::addDSPCtrlRegOperands(bool IsDef, MachineInstr &MI,
@@ -1439,7 +1439,11 @@ bool MipsSEDAGToDAGISel::SelectInlineAsmMemoryOperand(
   return true;
 }
 
+MipsSEDAGToDAGISelLegacy::MipsSEDAGToDAGISelLegacy(MipsTargetMachine &TM,
+                                                   CodeGenOptLevel OL)
+    : MipsDAGToDAGISelLegacy(std::make_unique<MipsSEDAGToDAGISel>(TM, OL)) {}
+
 FunctionPass *llvm::createMipsSEISelDag(MipsTargetMachine &TM,
                                         CodeGenOptLevel OptLevel) {
-  return new MipsSEDAGToDAGISel(TM, OptLevel);
+  return new MipsSEDAGToDAGISelLegacy(TM, OptLevel);
 }
diff --git a/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.h b/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.h
index 96dc876cb753e6..7b843b0e0b2552 100644
--- a/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.h
+++ b/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.h
@@ -27,8 +27,6 @@ class MipsSEDAGToDAGISel : public MipsDAGToDAGISel {
 
   bool runOnMachineFunction(MachineFunction &MF) override;
 
-  void getAnalysisUsage(AnalysisUsage &AU) const override;
-
   void addDSPCtrlRegOperands(bool IsDef, MachineInstr &MI,
                              MachineFunction &MF);
 
@@ -139,6 +137,12 @@ class MipsSEDAGToDAGISel : public MipsDAGToDAGISel {
                                     std::vector<SDValue> &OutOps) override;
 };
 
+class MipsSEDAGToDAGISelLegacy : public MipsDAGToDAGISelLegacy {
+public:
+  explicit MipsSEDAGToDAGISelLegacy(MipsTargetMachine &TM, CodeGenOptLevel OL);
+  void getAnalysisUsage(AnalysisUsage &AU) const override;
+};
+
 FunctionPass *createMipsSEISelDag(MipsTargetMachine &TM,
                                   CodeGenOptLevel OptLevel);
 }
diff --git a/llvm/lib/Target/Mips/MipsTargetMachine.cpp b/llvm/lib/Target/Mips/MipsTargetMachine.cpp
index 4c4bf70e22c6c1..9515e506c73e5d 100644
--- a/llvm/lib/Target/Mips/MipsTargetMachine.cpp
+++ b/llvm/lib/Target/Mips/MipsTargetMachine.cpp
@@ -67,7 +67,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeMipsTarget() {
   initializeMipsPreLegalizerCombinerPass(*PR);
   initializeMipsPostLegalizerCombinerPass(*PR);
   initializeMipsMulMulBugFixPass(*PR);
-  initializeMipsDAGToDAGISelPass(*PR);
+  initializeMipsDAGToDAGISelLegacyPass(*PR);
 }
 
 static std::string computeDataLayout(const Triple &TT, StringRef CPU,

>From 3d1bf7e0f677617b71c04dbbb3dd5274a7299e0d Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:56:47 +0800
Subject: [PATCH 14/25] MSP430 part

---
 llvm/lib/Target/MSP430/MSP430.h                |  2 +-
 llvm/lib/Target/MSP430/MSP430ISelDAGToDAG.cpp  | 18 ++++++++++++------
 llvm/lib/Target/MSP430/MSP430TargetMachine.cpp |  2 +-
 3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/llvm/lib/Target/MSP430/MSP430.h b/llvm/lib/Target/MSP430/MSP430.h
index 60685b6704ba2e..019835908db815 100644
--- a/llvm/lib/Target/MSP430/MSP430.h
+++ b/llvm/lib/Target/MSP430/MSP430.h
@@ -43,7 +43,7 @@ FunctionPass *createMSP430ISelDag(MSP430TargetMachine &TM,
 
 FunctionPass *createMSP430BranchSelectionPass();
 
-void initializeMSP430DAGToDAGISelPass(PassRegistry &);
+void initializeMSP430DAGToDAGISelLegacyPass(PassRegistry &);
 
 } // namespace llvm
 
diff --git a/llvm/lib/Target/MSP430/MSP430ISelDAGToDAG.cpp b/llvm/lib/Target/MSP430/MSP430ISelDAGToDAG.cpp
index efb23b1a4e3f58..7be51d98d97d50 100644
--- a/llvm/lib/Target/MSP430/MSP430ISelDAGToDAG.cpp
+++ b/llvm/lib/Target/MSP430/MSP430ISelDAGToDAG.cpp
@@ -91,12 +91,10 @@ namespace {
 namespace {
   class MSP430DAGToDAGISel : public SelectionDAGISel {
   public:
-    static char ID;
-
     MSP430DAGToDAGISel() = delete;
 
     MSP430DAGToDAGISel(MSP430TargetMachine &TM, CodeGenOptLevel OptLevel)
-        : SelectionDAGISel(ID, TM, OptLevel) {}
+        : SelectionDAGISel(TM, OptLevel) {}
 
   private:
     bool MatchAddress(SDValue N, MSP430ISelAddressMode &AM);
@@ -119,18 +117,26 @@ namespace {
 
     bool SelectAddr(SDValue Addr, SDValue &Base, SDValue &Disp);
   };
+
+  class MSP430DAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+  public:
+    static char ID;
+    MSP430DAGToDAGISelLegacy(MSP430TargetMachine &TM, CodeGenOptLevel OptLevel)
+        : SelectionDAGISelLegacy(
+              ID, std::make_unique<MSP430DAGToDAGISel>(TM, OptLevel)) {}
+  };
 }  // end anonymous namespace
 
-char MSP430DAGToDAGISel::ID;
+char MSP430DAGToDAGISelLegacy::ID;
 
-INITIALIZE_PASS(MSP430DAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+INITIALIZE_PASS(MSP430DAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 /// createMSP430ISelDag - This pass converts a legalized DAG into a
 /// MSP430-specific DAG, ready for instruction scheduling.
 ///
 FunctionPass *llvm::createMSP430ISelDag(MSP430TargetMachine &TM,
                                         CodeGenOptLevel OptLevel) {
-    return new MSP430DAGToDAGISel(TM, OptLevel);
+  return new MSP430DAGToDAGISelLegacy(TM, OptLevel);
 }
 
 /// MatchWrapper - Try to match MSP430ISD::Wrapper node into an addressing mode.
diff --git a/llvm/lib/Target/MSP430/MSP430TargetMachine.cpp b/llvm/lib/Target/MSP430/MSP430TargetMachine.cpp
index ed0fcf7110b78c..f307c376515078 100644
--- a/llvm/lib/Target/MSP430/MSP430TargetMachine.cpp
+++ b/llvm/lib/Target/MSP430/MSP430TargetMachine.cpp
@@ -26,7 +26,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeMSP430Target() {
   // Register the target.
   RegisterTargetMachine<MSP430TargetMachine> X(getTheMSP430Target());
   PassRegistry &PR = *PassRegistry::getPassRegistry();
-  initializeMSP430DAGToDAGISelPass(PR);
+  initializeMSP430DAGToDAGISelLegacyPass(PR);
 }
 
 static Reloc::Model getEffectiveRelocModel(std::optional<Reloc::Model> RM) {

>From 3e85aaec2df1c531f43e90ce9b4f428ed0c5357e Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:56:52 +0800
Subject: [PATCH 15/25] NVPTX part

---
 llvm/lib/Target/NVPTX/NVPTX.h                |  2 +-
 llvm/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp  | 13 +++++++++----
 llvm/lib/Target/NVPTX/NVPTXISelDAGToDAG.h    |  9 +++++++--
 llvm/lib/Target/NVPTX/NVPTXTargetMachine.cpp |  2 +-
 4 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/llvm/lib/Target/NVPTX/NVPTX.h b/llvm/lib/Target/NVPTX/NVPTX.h
index 07ee34968b023b..5eefab59a6ab51 100644
--- a/llvm/lib/Target/NVPTX/NVPTX.h
+++ b/llvm/lib/Target/NVPTX/NVPTX.h
@@ -194,7 +194,7 @@ enum PrmtMode {
 };
 }
 }
-void initializeNVPTXDAGToDAGISelPass(PassRegistry &);
+void initializeNVPTXDAGToDAGISelLegacyPass(PassRegistry &);
 } // namespace llvm
 
 // Defines symbolic names for NVPTX registers.  This defines a mapping from
diff --git a/llvm/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp b/llvm/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp
index 3ff8994602e16b..cfd5f8d16a1173 100644
--- a/llvm/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp
+++ b/llvm/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp
@@ -34,16 +34,21 @@ using namespace llvm;
 /// NVPTX-specific DAG, ready for instruction scheduling.
 FunctionPass *llvm::createNVPTXISelDag(NVPTXTargetMachine &TM,
                                        llvm::CodeGenOptLevel OptLevel) {
-  return new NVPTXDAGToDAGISel(TM, OptLevel);
+  return new NVPTXDAGToDAGISelLegacy(TM, OptLevel);
 }
 
-char NVPTXDAGToDAGISel::ID = 0;
+NVPTXDAGToDAGISelLegacy::NVPTXDAGToDAGISelLegacy(NVPTXTargetMachine &tm,
+                                                 CodeGenOptLevel OptLevel)
+    : SelectionDAGISelLegacy(
+          ID, std::make_unique<NVPTXDAGToDAGISel>(tm, OptLevel)) {}
 
-INITIALIZE_PASS(NVPTXDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+char NVPTXDAGToDAGISelLegacy::ID = 0;
+
+INITIALIZE_PASS(NVPTXDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 NVPTXDAGToDAGISel::NVPTXDAGToDAGISel(NVPTXTargetMachine &tm,
                                      CodeGenOptLevel OptLevel)
-    : SelectionDAGISel(ID, tm, OptLevel), TM(tm) {
+    : SelectionDAGISel(tm, OptLevel), TM(tm) {
   doMulWide = (OptLevel > CodeGenOptLevel::None);
 }
 
diff --git a/llvm/lib/Target/NVPTX/NVPTXISelDAGToDAG.h b/llvm/lib/Target/NVPTX/NVPTXISelDAGToDAG.h
index 84c8432047ca31..5aef1a279bb55b 100644
--- a/llvm/lib/Target/NVPTX/NVPTXISelDAGToDAG.h
+++ b/llvm/lib/Target/NVPTX/NVPTXISelDAGToDAG.h
@@ -39,8 +39,6 @@ class LLVM_LIBRARY_VISIBILITY NVPTXDAGToDAGISel : public SelectionDAGISel {
   bool useShortPointers() const;
 
 public:
-  static char ID;
-
   NVPTXDAGToDAGISel() = delete;
 
   explicit NVPTXDAGToDAGISel(NVPTXTargetMachine &tm, CodeGenOptLevel OptLevel);
@@ -101,6 +99,13 @@ class LLVM_LIBRARY_VISIBILITY NVPTXDAGToDAGISel : public SelectionDAGISel {
 
   static unsigned GetConvertOpcode(MVT DestTy, MVT SrcTy, LoadSDNode *N);
 };
+
+class NVPTXDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  explicit NVPTXDAGToDAGISelLegacy(NVPTXTargetMachine &tm,
+                                   CodeGenOptLevel OptLevel);
+};
 } // end namespace llvm
 
 #endif
diff --git a/llvm/lib/Target/NVPTX/NVPTXTargetMachine.cpp b/llvm/lib/Target/NVPTX/NVPTXTargetMachine.cpp
index 78f48652c9920f..f9f7155812f514 100644
--- a/llvm/lib/Target/NVPTX/NVPTXTargetMachine.cpp
+++ b/llvm/lib/Target/NVPTX/NVPTXTargetMachine.cpp
@@ -103,7 +103,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeNVPTXTarget() {
   initializeNVPTXCtorDtorLoweringLegacyPass(PR);
   initializeNVPTXLowerAggrCopiesPass(PR);
   initializeNVPTXProxyRegErasurePass(PR);
-  initializeNVPTXDAGToDAGISelPass(PR);
+  initializeNVPTXDAGToDAGISelLegacyPass(PR);
   initializeNVPTXAAWrapperPassPass(PR);
   initializeNVPTXExternalAAWrapperPass(PR);
 }

>From 9fdbd6476bfbd501863f9eb1f64b9e5b416b3ec9 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:56:58 +0800
Subject: [PATCH 16/25] PowerPC part

---
 llvm/lib/Target/PowerPC/PPC.h                |  2 +-
 llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp  | 18 ++++++++++++------
 llvm/lib/Target/PowerPC/PPCTargetMachine.cpp |  2 +-
 3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/llvm/lib/Target/PowerPC/PPC.h b/llvm/lib/Target/PowerPC/PPC.h
index eb8886dcc9075c..94a59d14601b2a 100644
--- a/llvm/lib/Target/PowerPC/PPC.h
+++ b/llvm/lib/Target/PowerPC/PPC.h
@@ -78,7 +78,7 @@ class ModulePass;
   void initializePPCMIPeepholePass(PassRegistry&);
   void initializePPCExpandAtomicPseudoPass(PassRegistry &);
   void initializePPCCTRLoopsPass(PassRegistry &);
-  void initializePPCDAGToDAGISelPass(PassRegistry &);
+  void initializePPCDAGToDAGISelLegacyPass(PassRegistry &);
   void initializePPCMergeStringPoolPass(PassRegistry &);
 
   extern char &PPCVSXFMAMutateID;
diff --git a/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
index af82b6cdb1809e..5af1eccfacc8e1 100644
--- a/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
@@ -147,12 +147,10 @@ namespace {
     unsigned GlobalBaseReg = 0;
 
   public:
-    static char ID;
-
     PPCDAGToDAGISel() = delete;
 
     explicit PPCDAGToDAGISel(PPCTargetMachine &tm, CodeGenOptLevel OptLevel)
-        : SelectionDAGISel(ID, tm, OptLevel), TM(tm) {}
+        : SelectionDAGISel(tm, OptLevel), TM(tm) {}
 
     bool runOnMachineFunction(MachineFunction &MF) override {
       // Make sure we re-emit a set of the global base reg if necessary
@@ -447,11 +445,19 @@ namespace {
     void transferMemOperands(SDNode *N, SDNode *Result);
   };
 
+  class PPCDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+  public:
+    static char ID;
+    explicit PPCDAGToDAGISelLegacy(PPCTargetMachine &tm,
+                                   CodeGenOptLevel OptLevel)
+        : SelectionDAGISelLegacy(
+              ID, std::make_unique<PPCDAGToDAGISel>(tm, OptLevel)) {}
+  };
 } // end anonymous namespace
 
-char PPCDAGToDAGISel::ID = 0;
+char PPCDAGToDAGISelLegacy::ID = 0;
 
-INITIALIZE_PASS(PPCDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+INITIALIZE_PASS(PPCDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 /// getGlobalBaseReg - Output the instructions required to put the
 /// base address to use for accessing globals into a register.
@@ -7902,5 +7908,5 @@ void PPCDAGToDAGISel::PeepholePPC64() {
 ///
 FunctionPass *llvm::createPPCISelDag(PPCTargetMachine &TM,
                                      CodeGenOptLevel OptLevel) {
-  return new PPCDAGToDAGISel(TM, OptLevel);
+  return new PPCDAGToDAGISelLegacy(TM, OptLevel);
 }
diff --git a/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp b/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp
index 714cf69827a1e7..1ef891d1b677a2 100644
--- a/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp
+++ b/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp
@@ -141,7 +141,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializePowerPCTarget() {
   initializePPCExpandAtomicPseudoPass(PR);
   initializeGlobalISel(PR);
   initializePPCCTRLoopsPass(PR);
-  initializePPCDAGToDAGISelPass(PR);
+  initializePPCDAGToDAGISelLegacyPass(PR);
   initializePPCMergeStringPoolPass(PR);
 }
 

>From 3d9e0f66da4141087d8518314bb8450ae06dd40b Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:57:03 +0800
Subject: [PATCH 17/25] RISCV part

---
 llvm/lib/Target/RISCV/RISCV.h                |  2 +-
 llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp  | 11 ++++++++---
 llvm/lib/Target/RISCV/RISCVISelDAGToDAG.h    | 11 ++++++++---
 llvm/lib/Target/RISCV/RISCVTargetMachine.cpp |  2 +-
 4 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/llvm/lib/Target/RISCV/RISCV.h b/llvm/lib/Target/RISCV/RISCV.h
index 7af543f018ccbd..e4f66f28502cb7 100644
--- a/llvm/lib/Target/RISCV/RISCV.h
+++ b/llvm/lib/Target/RISCV/RISCV.h
@@ -81,7 +81,7 @@ void initializeRISCVPushPopOptPass(PassRegistry &);
 InstructionSelector *createRISCVInstructionSelector(const RISCVTargetMachine &,
                                                     RISCVSubtarget &,
                                                     RISCVRegisterBankInfo &);
-void initializeRISCVDAGToDAGISelPass(PassRegistry &);
+void initializeRISCVDAGToDAGISelLegacyPass(PassRegistry &);
 
 FunctionPass *createRISCVPostLegalizerCombiner();
 void initializeRISCVPostLegalizerCombinerPass(PassRegistry &);
diff --git a/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp b/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
index f99dc0b8576368..74c7f38a05c35a 100644
--- a/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
+++ b/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
@@ -3883,9 +3883,14 @@ bool RISCVDAGToDAGISel::doPeepholeNoRegPassThru() {
 // for instruction scheduling.
 FunctionPass *llvm::createRISCVISelDag(RISCVTargetMachine &TM,
                                        CodeGenOptLevel OptLevel) {
-  return new RISCVDAGToDAGISel(TM, OptLevel);
+  return new RISCVDAGToDAGISelLegacy(TM, OptLevel);
 }
 
-char RISCVDAGToDAGISel::ID = 0;
+char RISCVDAGToDAGISelLegacy::ID = 0;
 
-INITIALIZE_PASS(RISCVDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+RISCVDAGToDAGISelLegacy::RISCVDAGToDAGISelLegacy(RISCVTargetMachine &TM,
+                                                 CodeGenOptLevel OptLevel)
+    : SelectionDAGISelLegacy(
+          ID, std::make_unique<RISCVDAGToDAGISel>(TM, OptLevel)) {}
+
+INITIALIZE_PASS(RISCVDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
diff --git a/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.h b/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.h
index 92f818b0dc4891..c4f2fb5f0b491e 100644
--- a/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.h
+++ b/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.h
@@ -25,13 +25,11 @@ class RISCVDAGToDAGISel : public SelectionDAGISel {
   const RISCVSubtarget *Subtarget = nullptr;
 
 public:
-  static char ID;
-
   RISCVDAGToDAGISel() = delete;
 
   explicit RISCVDAGToDAGISel(RISCVTargetMachine &TargetMachine,
                              CodeGenOptLevel OptLevel)
-      : SelectionDAGISel(ID, TargetMachine, OptLevel) {}
+      : SelectionDAGISel(TargetMachine, OptLevel) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override {
     Subtarget = &MF.getSubtarget<RISCVSubtarget>();
@@ -195,6 +193,13 @@ class RISCVDAGToDAGISel : public SelectionDAGISel {
   bool performCombineVMergeAndVOps(SDNode *N);
 };
 
+class RISCVDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  explicit RISCVDAGToDAGISelLegacy(RISCVTargetMachine &TargetMachine,
+                                   CodeGenOptLevel OptLevel);
+};
+
 namespace RISCV {
 struct VLSEGPseudo {
   uint16_t NF : 4;
diff --git a/llvm/lib/Target/RISCV/RISCVTargetMachine.cpp b/llvm/lib/Target/RISCV/RISCVTargetMachine.cpp
index ae1a6f179a49e3..e36b915c1c3d3d 100644
--- a/llvm/lib/Target/RISCV/RISCVTargetMachine.cpp
+++ b/llvm/lib/Target/RISCV/RISCVTargetMachine.cpp
@@ -123,7 +123,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeRISCVTarget() {
   initializeRISCVInsertVSETVLIPass(*PR);
   initializeRISCVInsertReadWriteCSRPass(*PR);
   initializeRISCVInsertWriteVXRMPass(*PR);
-  initializeRISCVDAGToDAGISelPass(*PR);
+  initializeRISCVDAGToDAGISelLegacyPass(*PR);
   initializeRISCVMoveMergePass(*PR);
   initializeRISCVPushPopOptPass(*PR);
 }

>From d4f87e04b0bb6b31409c476af23d8bc245a41ef7 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:57:08 +0800
Subject: [PATCH 18/25] Sparc part

---
 llvm/lib/Target/Sparc/Sparc.h                |  2 +-
 llvm/lib/Target/Sparc/SparcISelDAGToDAG.cpp  | 18 ++++++++++++------
 llvm/lib/Target/Sparc/SparcTargetMachine.cpp |  2 +-
 3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/llvm/lib/Target/Sparc/Sparc.h b/llvm/lib/Target/Sparc/Sparc.h
index fca7657871e863..33a803469603b3 100644
--- a/llvm/lib/Target/Sparc/Sparc.h
+++ b/llvm/lib/Target/Sparc/Sparc.h
@@ -31,7 +31,7 @@ FunctionPass *createSparcDelaySlotFillerPass();
 
 void LowerSparcMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
                                     AsmPrinter &AP);
-void initializeSparcDAGToDAGISelPass(PassRegistry &);
+void initializeSparcDAGToDAGISelLegacyPass(PassRegistry &);
 } // namespace llvm
 
 namespace llvm {
diff --git a/llvm/lib/Target/Sparc/SparcISelDAGToDAG.cpp b/llvm/lib/Target/Sparc/SparcISelDAGToDAG.cpp
index 3c9841d81b4f3f..2531611948191c 100644
--- a/llvm/lib/Target/Sparc/SparcISelDAGToDAG.cpp
+++ b/llvm/lib/Target/Sparc/SparcISelDAGToDAG.cpp
@@ -35,12 +35,11 @@ class SparcDAGToDAGISel : public SelectionDAGISel {
   /// Subtarget - Keep a pointer to the Sparc Subtarget around so that we can
   /// make the right decision when generating code for different targets.
   const SparcSubtarget *Subtarget = nullptr;
-public:
-  static char ID;
 
+public:
   SparcDAGToDAGISel() = delete;
 
-  explicit SparcDAGToDAGISel(SparcTargetMachine &tm) : SelectionDAGISel(ID, tm) {}
+  explicit SparcDAGToDAGISel(SparcTargetMachine &tm) : SelectionDAGISel(tm) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override {
     Subtarget = &MF.getSubtarget<SparcSubtarget>();
@@ -66,11 +65,18 @@ class SparcDAGToDAGISel : public SelectionDAGISel {
   SDNode* getGlobalBaseReg();
   bool tryInlineAsm(SDNode *N);
 };
+
+class SparcDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  explicit SparcDAGToDAGISelLegacy(SparcTargetMachine &tm)
+      : SelectionDAGISelLegacy(ID, std::make_unique<SparcDAGToDAGISel>(tm)) {}
+};
 }  // end anonymous namespace
 
-char SparcDAGToDAGISel::ID = 0;
+char SparcDAGToDAGISelLegacy::ID = 0;
 
-INITIALIZE_PASS(SparcDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+INITIALIZE_PASS(SparcDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 SDNode* SparcDAGToDAGISel::getGlobalBaseReg() {
   Register GlobalBaseReg = Subtarget->getInstrInfo()->getGlobalBaseReg(MF);
@@ -397,5 +403,5 @@ bool SparcDAGToDAGISel::SelectInlineAsmMemoryOperand(
 /// SPARC-specific DAG, ready for instruction scheduling.
 ///
 FunctionPass *llvm::createSparcISelDag(SparcTargetMachine &TM) {
-  return new SparcDAGToDAGISel(TM);
+  return new SparcDAGToDAGISelLegacy(TM);
 }
diff --git a/llvm/lib/Target/Sparc/SparcTargetMachine.cpp b/llvm/lib/Target/Sparc/SparcTargetMachine.cpp
index 20ddafb0e43d07..ea403230bea893 100644
--- a/llvm/lib/Target/Sparc/SparcTargetMachine.cpp
+++ b/llvm/lib/Target/Sparc/SparcTargetMachine.cpp
@@ -28,7 +28,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeSparcTarget() {
   RegisterTargetMachine<SparcelTargetMachine> Z(getTheSparcelTarget());
 
   PassRegistry &PR = *PassRegistry::getPassRegistry();
-  initializeSparcDAGToDAGISelPass(PR);
+  initializeSparcDAGToDAGISelLegacyPass(PR);
 }
 
 static cl::opt<bool>

>From 89ede7e9e883bad5efc69419d0b0da3da184e491 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:57:14 +0800
Subject: [PATCH 19/25] SystemZ part

---
 llvm/lib/Target/SystemZ/SystemZ.h             |  2 +-
 .../Target/SystemZ/SystemZISelDAGToDAG.cpp    | 19 +++++++++++++------
 .../Target/SystemZ/SystemZTargetMachine.cpp   |  2 +-
 3 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/llvm/lib/Target/SystemZ/SystemZ.h b/llvm/lib/Target/SystemZ/SystemZ.h
index d7aa9e4e18cbbb..8824954ce44819 100644
--- a/llvm/lib/Target/SystemZ/SystemZ.h
+++ b/llvm/lib/Target/SystemZ/SystemZ.h
@@ -199,7 +199,7 @@ FunctionPass *createSystemZPostRewritePass(SystemZTargetMachine &TM);
 FunctionPass *createSystemZTDCPass();
 
 void initializeSystemZCopyPhysRegsPass(PassRegistry &);
-void initializeSystemZDAGToDAGISelPass(PassRegistry &);
+void initializeSystemZDAGToDAGISelLegacyPass(PassRegistry &);
 void initializeSystemZElimComparePass(PassRegistry &);
 void initializeSystemZLDCleanupPass(PassRegistry &);
 void initializeSystemZLongBranchPass(PassRegistry &);
diff --git a/llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp b/llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp
index deaf3dcaeb92a4..e2b98ab9725452 100644
--- a/llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp
@@ -351,12 +351,10 @@ class SystemZDAGToDAGISel : public SelectionDAGISel {
   SDValue expandSelectBoolean(SDNode *Node);
 
 public:
-  static char ID;
-
   SystemZDAGToDAGISel() = delete;
 
   SystemZDAGToDAGISel(SystemZTargetMachine &TM, CodeGenOptLevel OptLevel)
-      : SelectionDAGISel(ID, TM, OptLevel) {}
+      : SelectionDAGISel(TM, OptLevel) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override {
     const Function &F = MF.getFunction();
@@ -382,15 +380,24 @@ class SystemZDAGToDAGISel : public SelectionDAGISel {
   // Include the pieces autogenerated from the target description.
   #include "SystemZGenDAGISel.inc"
 };
+
+class SystemZDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  explicit SystemZDAGToDAGISelLegacy(SystemZTargetMachine &TM,
+                                     CodeGenOptLevel OptLevel)
+      : SelectionDAGISelLegacy(
+            ID, std::make_unique<SystemZDAGToDAGISel>(TM, OptLevel)) {}
+};
 } // end anonymous namespace
 
-char SystemZDAGToDAGISel::ID = 0;
+char SystemZDAGToDAGISelLegacy::ID = 0;
 
-INITIALIZE_PASS(SystemZDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+INITIALIZE_PASS(SystemZDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 FunctionPass *llvm::createSystemZISelDag(SystemZTargetMachine &TM,
                                          CodeGenOptLevel OptLevel) {
-  return new SystemZDAGToDAGISel(TM, OptLevel);
+  return new SystemZDAGToDAGISelLegacy(TM, OptLevel);
 }
 
 // Return true if Val should be selected as a displacement for an address
diff --git a/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp b/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
index 2491bd2ee2c12c..6fe2847c134cf0 100644
--- a/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
@@ -42,7 +42,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeSystemZTarget() {
   initializeSystemZShortenInstPass(PR);
   initializeSystemZPostRewritePass(PR);
   initializeSystemZTDCPassPass(PR);
-  initializeSystemZDAGToDAGISelPass(PR);
+  initializeSystemZDAGToDAGISelLegacyPass(PR);
 }
 
 static std::string computeDataLayout(const Triple &TT) {

>From 8a8507d1270e58c5d5713b793b20d1ad616522e2 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:57:19 +0800
Subject: [PATCH 20/25] VE part

---
 llvm/lib/Target/VE/VE.h                |  2 +-
 llvm/lib/Target/VE/VEISelDAGToDAG.cpp  | 17 +++++++++++------
 llvm/lib/Target/VE/VETargetMachine.cpp |  2 +-
 3 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/llvm/lib/Target/VE/VE.h b/llvm/lib/Target/VE/VE.h
index 6f0243010ba081..ee76c5121d362e 100644
--- a/llvm/lib/Target/VE/VE.h
+++ b/llvm/lib/Target/VE/VE.h
@@ -29,7 +29,7 @@ class VETargetMachine;
 
 FunctionPass *createVEISelDag(VETargetMachine &TM);
 FunctionPass *createLVLGenPass();
-void initializeVEDAGToDAGISelPass(PassRegistry &);
+void initializeVEDAGToDAGISelLegacyPass(PassRegistry &);
 
 void LowerVEMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
                                  AsmPrinter &AP);
diff --git a/llvm/lib/Target/VE/VEISelDAGToDAG.cpp b/llvm/lib/Target/VE/VEISelDAGToDAG.cpp
index 87646bc1a12ff2..680bd12fb4b62f 100644
--- a/llvm/lib/Target/VE/VEISelDAGToDAG.cpp
+++ b/llvm/lib/Target/VE/VEISelDAGToDAG.cpp
@@ -34,11 +34,9 @@ class VEDAGToDAGISel : public SelectionDAGISel {
   const VESubtarget *Subtarget;
 
 public:
-  static char ID;
-
   VEDAGToDAGISel() = delete;
 
-  explicit VEDAGToDAGISel(VETargetMachine &tm) : SelectionDAGISel(ID, tm) {}
+  explicit VEDAGToDAGISel(VETargetMachine &tm) : SelectionDAGISel(tm) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override {
     Subtarget = &MF.getSubtarget<VESubtarget>();
@@ -70,11 +68,18 @@ class VEDAGToDAGISel : public SelectionDAGISel {
   bool matchADDRrr(SDValue N, SDValue &Base, SDValue &Index);
   bool matchADDRri(SDValue N, SDValue &Base, SDValue &Offset);
 };
+
+class VEDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  explicit VEDAGToDAGISelLegacy(VETargetMachine &tm)
+      : SelectionDAGISelLegacy(ID, std::make_unique<VEDAGToDAGISel>(tm)) {}
+};
 } // end anonymous namespace
 
-char VEDAGToDAGISel::ID = 0;
+char VEDAGToDAGISelLegacy::ID = 0;
 
-INITIALIZE_PASS(VEDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+INITIALIZE_PASS(VEDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 bool VEDAGToDAGISel::selectADDRrri(SDValue Addr, SDValue &Base, SDValue &Index,
                                    SDValue &Offset) {
@@ -336,5 +341,5 @@ SDNode *VEDAGToDAGISel::getGlobalBaseReg() {
 /// VE-specific DAG, ready for instruction scheduling.
 ///
 FunctionPass *llvm::createVEISelDag(VETargetMachine &TM) {
-  return new VEDAGToDAGISel(TM);
+  return new VEDAGToDAGISelLegacy(TM);
 }
diff --git a/llvm/lib/Target/VE/VETargetMachine.cpp b/llvm/lib/Target/VE/VETargetMachine.cpp
index 6f4e137e4d2f18..383667bf79e1b2 100644
--- a/llvm/lib/Target/VE/VETargetMachine.cpp
+++ b/llvm/lib/Target/VE/VETargetMachine.cpp
@@ -30,7 +30,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeVETarget() {
   RegisterTargetMachine<VETargetMachine> X(getTheVETarget());
 
   PassRegistry &PR = *PassRegistry::getPassRegistry();
-  initializeVEDAGToDAGISelPass(PR);
+  initializeVEDAGToDAGISelLegacyPass(PR);
 }
 
 static std::string computeDataLayout(const Triple &T) {

>From be11fa508408749f0073d351d27202ab1e981935 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:57:27 +0800
Subject: [PATCH 21/25] WebAssembly part

---
 llvm/lib/Target/WebAssembly/WebAssembly.h     |  2 +-
 .../WebAssembly/WebAssemblyISelDAGToDAG.cpp   | 20 +++++++++++++------
 .../WebAssembly/WebAssemblyTargetMachine.cpp  |  2 +-
 3 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/llvm/lib/Target/WebAssembly/WebAssembly.h b/llvm/lib/Target/WebAssembly/WebAssembly.h
index 1c40addb6d6f78..0dd1dc31d9bae3 100644
--- a/llvm/lib/Target/WebAssembly/WebAssembly.h
+++ b/llvm/lib/Target/WebAssembly/WebAssembly.h
@@ -65,7 +65,7 @@ void initializeWebAssemblyAddMissingPrototypesPass(PassRegistry &);
 void initializeWebAssemblyArgumentMovePass(PassRegistry &);
 void initializeWebAssemblyCFGSortPass(PassRegistry &);
 void initializeWebAssemblyCFGStackifyPass(PassRegistry &);
-void initializeWebAssemblyDAGToDAGISelPass(PassRegistry &);
+void initializeWebAssemblyDAGToDAGISelLegacyPass(PassRegistry &);
 void initializeWebAssemblyDebugFixupPass(PassRegistry &);
 void initializeWebAssemblyExceptionInfoPass(PassRegistry &);
 void initializeWebAssemblyExplicitLocalsPass(PassRegistry &);
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyISelDAGToDAG.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyISelDAGToDAG.cpp
index 8833aee02a6a94..0f06f54f219f9a 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyISelDAGToDAG.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyISelDAGToDAG.cpp
@@ -42,13 +42,11 @@ class WebAssemblyDAGToDAGISel final : public SelectionDAGISel {
   const WebAssemblySubtarget *Subtarget;
 
 public:
-  static char ID;
-
   WebAssemblyDAGToDAGISel() = delete;
 
   WebAssemblyDAGToDAGISel(WebAssemblyTargetMachine &TM,
                           CodeGenOptLevel OptLevel)
-      : SelectionDAGISel(ID, TM, OptLevel), Subtarget(nullptr) {}
+      : SelectionDAGISel(TM, OptLevel), Subtarget(nullptr) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override {
     LLVM_DEBUG(dbgs() << "********** ISelDAGToDAG **********\n"
@@ -82,11 +80,21 @@ class WebAssemblyDAGToDAGISel final : public SelectionDAGISel {
   bool SelectAddrAddOperands(MVT OffsetType, SDValue N, SDValue &Offset,
                              SDValue &Addr);
 };
+
+class WebAssemblyDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+  explicit WebAssemblyDAGToDAGISelLegacy(WebAssemblyTargetMachine &TM,
+                                         CodeGenOptLevel OptLevel)
+      : SelectionDAGISelLegacy(
+            ID, std::make_unique<WebAssemblyDAGToDAGISel>(TM, OptLevel)) {}
+};
 } // end anonymous namespace
 
-char WebAssemblyDAGToDAGISel::ID;
+char WebAssemblyDAGToDAGISelLegacy::ID;
 
-INITIALIZE_PASS(WebAssemblyDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+INITIALIZE_PASS(WebAssemblyDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false,
+                false)
 
 void WebAssemblyDAGToDAGISel::PreprocessISelDAG() {
   // Stack objects that should be allocated to locals are hoisted to WebAssembly
@@ -409,5 +417,5 @@ bool WebAssemblyDAGToDAGISel::SelectAddrOperands64(SDValue Op, SDValue &Offset,
 /// for instruction scheduling.
 FunctionPass *llvm::createWebAssemblyISelDag(WebAssemblyTargetMachine &TM,
                                              CodeGenOptLevel OptLevel) {
-  return new WebAssemblyDAGToDAGISel(TM, OptLevel);
+  return new WebAssemblyDAGToDAGISelLegacy(TM, OptLevel);
 }
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
index 769ee765e19078..745939064ff1d9 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
@@ -90,7 +90,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeWebAssemblyTarget() {
   initializeWebAssemblyMCLowerPrePassPass(PR);
   initializeWebAssemblyLowerRefTypesIntPtrConvPass(PR);
   initializeWebAssemblyFixBrTableDefaultsPass(PR);
-  initializeWebAssemblyDAGToDAGISelPass(PR);
+  initializeWebAssemblyDAGToDAGISelLegacyPass(PR);
 }
 
 //===----------------------------------------------------------------------===//

>From 9b4ce9a37bbef65e2fbbe64e2709db373796ae26 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:57:34 +0800
Subject: [PATCH 22/25] X86 part

---
 llvm/lib/Target/X86/X86.h                     |  2 +-
 llvm/lib/Target/X86/X86CodeGenPassBuilder.cpp | 11 +++++++-
 llvm/lib/Target/X86/X86ISelDAGToDAG.cpp       | 28 +++++++++++++------
 llvm/lib/Target/X86/X86ISelDAGToDAG.h         | 25 +++++++++++++++++
 llvm/lib/Target/X86/X86PassRegistry.def       | 19 +++++++++++++
 llvm/lib/Target/X86/X86TargetMachine.cpp      |  2 +-
 llvm/lib/Target/X86/X86TargetMachine.h        |  3 ++
 llvm/test/CodeGen/X86/apx/no-rex2-general.ll  |  2 ++
 .../CodeGen/X86/apx/no-rex2-pseudo-amx.ll     |  1 +
 .../CodeGen/X86/apx/no-rex2-pseudo-x87.ll     |  1 +
 llvm/test/CodeGen/X86/apx/no-rex2-special.ll  |  1 +
 11 files changed, 83 insertions(+), 12 deletions(-)
 create mode 100644 llvm/lib/Target/X86/X86ISelDAGToDAG.h
 create mode 100644 llvm/lib/Target/X86/X86PassRegistry.def

diff --git a/llvm/lib/Target/X86/X86.h b/llvm/lib/Target/X86/X86.h
index 21623a805f5568..fdb9e4cad5e897 100644
--- a/llvm/lib/Target/X86/X86.h
+++ b/llvm/lib/Target/X86/X86.h
@@ -179,7 +179,7 @@ void initializeX86AvoidSFBPassPass(PassRegistry &);
 void initializeX86AvoidTrailingCallPassPass(PassRegistry &);
 void initializeX86CallFrameOptimizationPass(PassRegistry &);
 void initializeX86CmovConverterPassPass(PassRegistry &);
-void initializeX86DAGToDAGISelPass(PassRegistry &);
+void initializeX86DAGToDAGISelLegacyPass(PassRegistry &);
 void initializeX86DomainReassignmentPass(PassRegistry &);
 void initializeX86ExecutionDomainFixPass(PassRegistry &);
 void initializeX86ExpandPseudoPass(PassRegistry &);
diff --git a/llvm/lib/Target/X86/X86CodeGenPassBuilder.cpp b/llvm/lib/Target/X86/X86CodeGenPassBuilder.cpp
index 453754381034e3..1147c52caad9d1 100644
--- a/llvm/lib/Target/X86/X86CodeGenPassBuilder.cpp
+++ b/llvm/lib/Target/X86/X86CodeGenPassBuilder.cpp
@@ -10,10 +10,12 @@
 /// TODO: Port CodeGen passes to new pass manager.
 //===----------------------------------------------------------------------===//
 
+#include "X86ISelDAGToDAG.h"
 #include "X86TargetMachine.h"
 
 #include "llvm/MC/MCStreamer.h"
 #include "llvm/Passes/CodeGenPassBuilder.h"
+#include "llvm/Passes/PassBuilder.h"
 
 using namespace llvm;
 
@@ -39,13 +41,20 @@ void X86CodeGenPassBuilder::addAsmPrinter(AddMachinePass &addPass,
   // TODO: Add AsmPrinter.
 }
 
-Error X86CodeGenPassBuilder::addInstSelector(AddMachinePass &) const {
+Error X86CodeGenPassBuilder::addInstSelector(AddMachinePass &addPass) const {
   // TODO: Add instruction selector.
+  addPass(X86ISelDAGToDAGPass(static_cast<X86TargetMachine &>(TM)));
   return Error::success();
 }
 
 } // namespace
 
+void X86TargetMachine::registerPassBuilderCallbacks(
+    PassBuilder &PB, bool PopulateClassToPassNames) {
+#define GET_PASS_REGISTRY "X86PassRegistry.def"
+#include "llvm/Passes/TargetPassRegistry.inc"
+}
+
 Error X86TargetMachine::buildCodeGenPipeline(
     ModulePassManager &MPM, raw_pwrite_stream &Out, raw_pwrite_stream *DwoOut,
     CodeGenFileType FileType, const CGPassBuilderOption &Opt,
diff --git a/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp b/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
index 4e4241efd63d6b..d7e202ecd7b40e 100644
--- a/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
+++ b/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
@@ -11,6 +11,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "X86ISelDAGToDAG.h"
 #include "X86.h"
 #include "X86MachineFunctionInfo.h"
 #include "X86RegisterInfo.h"
@@ -169,12 +170,10 @@ namespace {
     bool IndirectTlsSegRefs;
 
   public:
-    static char ID;
-
     X86DAGToDAGISel() = delete;
 
     explicit X86DAGToDAGISel(X86TargetMachine &tm, CodeGenOptLevel OptLevel)
-        : SelectionDAGISel(ID, tm, OptLevel), Subtarget(nullptr),
+        : SelectionDAGISel(tm, OptLevel), Subtarget(nullptr),
           OptForMinSize(false), IndirectTlsSegRefs(false) {}
 
     bool runOnMachineFunction(MachineFunction &MF) override {
@@ -187,9 +186,7 @@ namespace {
       OptForMinSize = MF.getFunction().hasMinSize();
       assert((!OptForMinSize || MF.getFunction().hasOptSize()) &&
              "OptForMinSize implies OptForSize");
-
-      SelectionDAGISel::runOnMachineFunction(MF);
-      return true;
+      return SelectionDAGISel::runOnMachineFunction(MF);
     }
 
     void emitFunctionEntryCode() override;
@@ -577,11 +574,20 @@ namespace {
     bool hasNoSignFlagUses(SDValue Flags) const;
     bool hasNoCarryFlagUses(SDValue Flags) const;
   };
+
+  class X86DAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+  public:
+    static char ID;
+    explicit X86DAGToDAGISelLegacy(X86TargetMachine &tm,
+                                   CodeGenOptLevel OptLevel)
+        : SelectionDAGISelLegacy(
+              ID, std::make_unique<X86DAGToDAGISel>(tm, OptLevel)) {}
+  };
 }
 
-char X86DAGToDAGISel::ID = 0;
+char X86DAGToDAGISelLegacy::ID = 0;
 
-INITIALIZE_PASS(X86DAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+INITIALIZE_PASS(X86DAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 // Returns true if this masked compare can be implemented legally with this
 // type.
@@ -6551,9 +6557,13 @@ bool X86DAGToDAGISel::SelectInlineAsmMemoryOperand(
   return false;
 }
 
+X86ISelDAGToDAGPass::X86ISelDAGToDAGPass(X86TargetMachine &TM)
+    : SelectionDAGISelPass(
+          std::make_unique<X86DAGToDAGISel>(TM, TM.getOptLevel())) {}
+
 /// This pass converts a legalized DAG into a X86-specific DAG,
 /// ready for instruction scheduling.
 FunctionPass *llvm::createX86ISelDag(X86TargetMachine &TM,
                                      CodeGenOptLevel OptLevel) {
-  return new X86DAGToDAGISel(TM, OptLevel);
+  return new X86DAGToDAGISelLegacy(TM, OptLevel);
 }
diff --git a/llvm/lib/Target/X86/X86ISelDAGToDAG.h b/llvm/lib/Target/X86/X86ISelDAGToDAG.h
new file mode 100644
index 00000000000000..1f30c25b502fc0
--- /dev/null
+++ b/llvm/lib/Target/X86/X86ISelDAGToDAG.h
@@ -0,0 +1,25 @@
+//===-- X86ISelDAGToDAG.h ---------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_X86_X86ISELDAGTODAG_H
+#define LLVM_LIB_TARGET_X86_X86ISELDAGTODAG_H
+
+#include "llvm/CodeGen/SelectionDAGISel.h"
+
+namespace llvm {
+
+class X86TargetMachine;
+
+class X86ISelDAGToDAGPass : public SelectionDAGISelPass {
+public:
+  X86ISelDAGToDAGPass(X86TargetMachine &TM);
+};
+
+} // namespace llvm
+
+#endif // LLVM_LIB_TARGET_X86_X86ISELDAGTODAG_H
diff --git a/llvm/lib/Target/X86/X86PassRegistry.def b/llvm/lib/Target/X86/X86PassRegistry.def
new file mode 100644
index 00000000000000..620526ffc1ab6c
--- /dev/null
+++ b/llvm/lib/Target/X86/X86PassRegistry.def
@@ -0,0 +1,19 @@
+//===- X86PassRegistry.def - Registry of X86 specific passes ----*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is used as the registry of passes that are part of the X86 backend.
+//
+//===----------------------------------------------------------------------===//
+
+// NOTE: NO INCLUDE GUARD DESIRED!
+
+#ifndef MACHINE_FUNCTION_PASS
+#define MACHINE_FUNCTION_PASS(NAME, CREATE_PASS)
+#endif
+MACHINE_FUNCTION_PASS("x86-isel", X86ISelDAGToDAGPass(*this))
+#undef MACHINE_FUNCTION_PASS
diff --git a/llvm/lib/Target/X86/X86TargetMachine.cpp b/llvm/lib/Target/X86/X86TargetMachine.cpp
index 86b456019c4e56..f771f610d0e559 100644
--- a/llvm/lib/Target/X86/X86TargetMachine.cpp
+++ b/llvm/lib/Target/X86/X86TargetMachine.cpp
@@ -100,7 +100,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeX86Target() {
   initializeX86PartialReductionPass(PR);
   initializePseudoProbeInserterPass(PR);
   initializeX86ReturnThunksPass(PR);
-  initializeX86DAGToDAGISelPass(PR);
+  initializeX86DAGToDAGISelLegacyPass(PR);
   initializeX86ArgumentStackSlotPassPass(PR);
   initializeX86FixupInstTuningPassPass(PR);
   initializeX86FixupVectorConstantsPassPass(PR);
diff --git a/llvm/lib/Target/X86/X86TargetMachine.h b/llvm/lib/Target/X86/X86TargetMachine.h
index 4e7ded16729d07..4a5f20fcc01726 100644
--- a/llvm/lib/Target/X86/X86TargetMachine.h
+++ b/llvm/lib/Target/X86/X86TargetMachine.h
@@ -58,6 +58,9 @@ class X86TargetMachine final : public LLVMTargetMachine {
   createMachineFunctionInfo(BumpPtrAllocator &Allocator, const Function &F,
                             const TargetSubtargetInfo *STI) const override;
 
+  void registerPassBuilderCallbacks(PassBuilder &PB,
+                                    bool PopulateClassToPassNames) override;
+
   Error buildCodeGenPipeline(ModulePassManager &, raw_pwrite_stream &,
                              raw_pwrite_stream *, CodeGenFileType,
                              const CGPassBuilderOption &,
diff --git a/llvm/test/CodeGen/X86/apx/no-rex2-general.ll b/llvm/test/CodeGen/X86/apx/no-rex2-general.ll
index 1f92883f417086..805fc7ccaab763 100644
--- a/llvm/test/CodeGen/X86/apx/no-rex2-general.ll
+++ b/llvm/test/CodeGen/X86/apx/no-rex2-general.ll
@@ -1,6 +1,8 @@
 ; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
 ; RUN: llc < %s -mtriple=x86_64-unknown -stop-after=x86-isel -mattr=+sse2,+ssse3,+egpr  | FileCheck %s --check-prefix=SSE
 ; RUN: llc < %s -mtriple=x86_64-unknown -stop-after=x86-isel -mattr=+sse2,+ssse3,+egpr,+avx | FileCheck %s --check-prefix=AVX
+; RUN: llc < %s -enable-new-pm -mtriple=x86_64-unknown -stop-after=x86-isel -mattr=+sse2,+ssse3,+egpr  | FileCheck %s --check-prefix=SSE
+; RUN: llc < %s -enable-new-pm -mtriple=x86_64-unknown -stop-after=x86-isel -mattr=+sse2,+ssse3,+egpr,+avx | FileCheck %s --check-prefix=AVX
 
 define i32 @map0(ptr nocapture noundef readonly %a, i64 noundef %b) {
   ; SSE-LABEL: name: map0
diff --git a/llvm/test/CodeGen/X86/apx/no-rex2-pseudo-amx.ll b/llvm/test/CodeGen/X86/apx/no-rex2-pseudo-amx.ll
index e082becbc441d9..5fa4cb4c8826b7 100644
--- a/llvm/test/CodeGen/X86/apx/no-rex2-pseudo-amx.ll
+++ b/llvm/test/CodeGen/X86/apx/no-rex2-pseudo-amx.ll
@@ -1,5 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
 ; RUN: llc < %s -mtriple=x86_64-unknown -stop-after=x86-isel -mattr=+amx-tile,+egpr | FileCheck %s
+; RUN: llc < %s -enable-new-pm -mtriple=x86_64-unknown -stop-after=x86-isel -mattr=+amx-tile,+egpr | FileCheck %s
 
 define dso_local void @amx(ptr noundef %data) {
   ; CHECK-LABEL: name: amx
diff --git a/llvm/test/CodeGen/X86/apx/no-rex2-pseudo-x87.ll b/llvm/test/CodeGen/X86/apx/no-rex2-pseudo-x87.ll
index 10ec184516e7e7..a9ca591a156c21 100644
--- a/llvm/test/CodeGen/X86/apx/no-rex2-pseudo-x87.ll
+++ b/llvm/test/CodeGen/X86/apx/no-rex2-pseudo-x87.ll
@@ -1,5 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
 ; RUN: llc < %s -mtriple=x86_64-unknown -stop-after=x86-isel -mattr=-sse,+egpr | FileCheck %s
+; RUN: llc < %s -enable-new-pm -mtriple=x86_64-unknown -stop-after=x86-isel -mattr=-sse,+egpr | FileCheck %s
 
 define void @x87(ptr %0, ptr %1) {
   ; CHECK-LABEL: name: x87
diff --git a/llvm/test/CodeGen/X86/apx/no-rex2-special.ll b/llvm/test/CodeGen/X86/apx/no-rex2-special.ll
index b277949697417d..86534427a9eaeb 100644
--- a/llvm/test/CodeGen/X86/apx/no-rex2-special.ll
+++ b/llvm/test/CodeGen/X86/apx/no-rex2-special.ll
@@ -1,5 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
 ; RUN: llc < %s -mtriple=x86_64-unknown -stop-after=x86-isel -mattr=+xsave,+egpr  | FileCheck %s
+; RUN: llc < %s -enable-new-pm -mtriple=x86_64-unknown -stop-after=x86-isel -mattr=+xsave,+egpr  | FileCheck %s
 
 define void @test_xsave(ptr %ptr, i32 %hi, i32 %lo) {
   ; CHECK-LABEL: name: test_xsave

>From ce7c022bc4c6991662478fd6054533d6a93a98d3 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 19:57:41 +0800
Subject: [PATCH 23/25] XCore part

---
 llvm/lib/Target/XCore/XCore.h                |  2 +-
 llvm/lib/Target/XCore/XCoreISelDAGToDAG.cpp  | 19 +++++++++++++------
 llvm/lib/Target/XCore/XCoreTargetMachine.cpp |  2 +-
 3 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/llvm/lib/Target/XCore/XCore.h b/llvm/lib/Target/XCore/XCore.h
index f019fa49f185e4..ad50f05a89d867 100644
--- a/llvm/lib/Target/XCore/XCore.h
+++ b/llvm/lib/Target/XCore/XCore.h
@@ -31,7 +31,7 @@ namespace llvm {
   FunctionPass *createXCoreISelDag(XCoreTargetMachine &TM,
                                    CodeGenOptLevel OptLevel);
   ModulePass *createXCoreLowerThreadLocalPass();
-  void initializeXCoreDAGToDAGISelPass(PassRegistry &);
+  void initializeXCoreDAGToDAGISelLegacyPass(PassRegistry &);
 
 } // end namespace llvm;
 
diff --git a/llvm/lib/Target/XCore/XCoreISelDAGToDAG.cpp b/llvm/lib/Target/XCore/XCoreISelDAGToDAG.cpp
index 1535eb622da689..dcbf1145a5cc23 100644
--- a/llvm/lib/Target/XCore/XCoreISelDAGToDAG.cpp
+++ b/llvm/lib/Target/XCore/XCoreISelDAGToDAG.cpp
@@ -41,12 +41,10 @@ namespace {
   class XCoreDAGToDAGISel : public SelectionDAGISel {
 
   public:
-    static char ID;
-
     XCoreDAGToDAGISel() = delete;
 
     XCoreDAGToDAGISel(XCoreTargetMachine &TM, CodeGenOptLevel OptLevel)
-        : SelectionDAGISel(ID, TM, OptLevel) {}
+        : SelectionDAGISel(TM, OptLevel) {}
 
     void Select(SDNode *N) override;
     bool tryBRIND(SDNode *N);
@@ -78,18 +76,27 @@ namespace {
     // Include the pieces autogenerated from the target description.
   #include "XCoreGenDAGISel.inc"
   };
+
+  class XCoreDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+  public:
+    static char ID;
+    explicit XCoreDAGToDAGISelLegacy(XCoreTargetMachine &TM,
+                                     CodeGenOptLevel OptLevel)
+        : SelectionDAGISelLegacy(
+              ID, std::make_unique<XCoreDAGToDAGISel>(TM, OptLevel)) {}
+  };
 }  // end anonymous namespace
 
-char XCoreDAGToDAGISel::ID = 0;
+char XCoreDAGToDAGISelLegacy::ID = 0;
 
-INITIALIZE_PASS(XCoreDAGToDAGISel, DEBUG_TYPE, PASS_NAME, false, false)
+INITIALIZE_PASS(XCoreDAGToDAGISelLegacy, DEBUG_TYPE, PASS_NAME, false, false)
 
 /// createXCoreISelDag - This pass converts a legalized DAG into a
 /// XCore-specific DAG, ready for instruction scheduling.
 ///
 FunctionPass *llvm::createXCoreISelDag(XCoreTargetMachine &TM,
                                        CodeGenOptLevel OptLevel) {
-    return new XCoreDAGToDAGISel(TM, OptLevel);
+  return new XCoreDAGToDAGISelLegacy(TM, OptLevel);
 }
 
 bool XCoreDAGToDAGISel::SelectADDRspii(SDValue Addr, SDValue &Base,
diff --git a/llvm/lib/Target/XCore/XCoreTargetMachine.cpp b/llvm/lib/Target/XCore/XCoreTargetMachine.cpp
index 374e91d01bdace..bb5beefbb65e18 100644
--- a/llvm/lib/Target/XCore/XCoreTargetMachine.cpp
+++ b/llvm/lib/Target/XCore/XCoreTargetMachine.cpp
@@ -107,7 +107,7 @@ void XCorePassConfig::addPreEmitPass() {
 extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeXCoreTarget() {
   RegisterTargetMachine<XCoreTargetMachine> X(getTheXCoreTarget());
   PassRegistry &PR = *PassRegistry::getPassRegistry();
-  initializeXCoreDAGToDAGISelPass(PR);
+  initializeXCoreDAGToDAGISelLegacyPass(PR);
 }
 
 TargetTransformInfo

>From 2819688cd39b2562acc75195f800d0ea8ece5691 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 20:00:10 +0800
Subject: [PATCH 24/25] Xtensa part

---
 llvm/lib/Target/Xtensa/XtensaISelDAGToDAG.cpp | 25 ++++++++++++-------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/llvm/lib/Target/Xtensa/XtensaISelDAGToDAG.cpp b/llvm/lib/Target/Xtensa/XtensaISelDAGToDAG.cpp
index 30073727545228..776a0977f2f9b0 100644
--- a/llvm/lib/Target/Xtensa/XtensaISelDAGToDAG.cpp
+++ b/llvm/lib/Target/Xtensa/XtensaISelDAGToDAG.cpp
@@ -26,14 +26,8 @@ namespace {
 
 class XtensaDAGToDAGISel : public SelectionDAGISel {
 public:
-  static char ID;
-
   XtensaDAGToDAGISel(XtensaTargetMachine &TM, CodeGenOptLevel OptLevel)
-      : SelectionDAGISel(ID, TM, OptLevel) {}
-
-  StringRef getPassName() const override {
-    return "Xtensa DAG->DAG Pattern Instruction Selection";
-  }
+      : SelectionDAGISel(TM, OptLevel) {}
 
   void Select(SDNode *Node) override;
 
@@ -57,13 +51,26 @@ class XtensaDAGToDAGISel : public SelectionDAGISel {
 // Include the pieces autogenerated from the target description.
 #include "XtensaGenDAGISel.inc"
 }; // namespace
+
+class XtensaDAGToDAGISelLegacy : public SelectionDAGISelLegacy {
+public:
+  static char ID;
+
+  XtensaDAGToDAGISelLegacy(XtensaTargetMachine &TM, CodeGenOptLevel OptLevel)
+      : SelectionDAGISelLegacy(
+            ID, std::make_unique<XtensaDAGToDAGISel>(TM, OptLevel)) {}
+
+  StringRef getPassName() const override {
+    return "Xtensa DAG->DAG Pattern Instruction Selection";
+  }
+};
 } // end anonymous namespace
 
-char XtensaDAGToDAGISel::ID = 0;
+char XtensaDAGToDAGISelLegacy::ID = 0;
 
 FunctionPass *llvm::createXtensaISelDag(XtensaTargetMachine &TM,
                                         CodeGenOptLevel OptLevel) {
-  return new XtensaDAGToDAGISel(TM, OptLevel);
+  return new XtensaDAGToDAGISelLegacy(TM, OptLevel);
 }
 
 void XtensaDAGToDAGISel::Select(SDNode *Node) {

>From 1f25a1b36d495593ce47417d8943bb6b4e267f39 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Thu, 11 Apr 2024 21:37:38 +0800
Subject: [PATCH 25/25] dag

---
 llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 4455c0198a3fcd..94be6a504a5f3d 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -510,8 +510,6 @@ void SelectionDAGISel::initializeAnalysisResults(
   if (isAssignmentTrackingEnabled(*Fn.getParent()))
     FnVarLocs = &FAM.getResult<DebugAssignmentTrackingAnalysis>(Fn);
 
-  ISEL_DUMP(dbgs() << "\n\n\n=== " << FuncName << "\n");
-
   auto *UA = FAM.getCachedResult<UniformityInfoAnalysis>(Fn);
   CurDAG->init(*MF, *ORE, MFAM, LibInfo, UA, PSI, BFI, FnVarLocs);
   SwiftError->setFunction(*MF);
@@ -564,8 +562,6 @@ void SelectionDAGISel::initializeAnalysisResults(MachineFunctionPass &MFP) {
   if (isAssignmentTrackingEnabled(*Fn.getParent()))
     FnVarLocs = MFP.getAnalysis<AssignmentTrackingAnalysis>().getResults();
 
-  ISEL_DUMP(dbgs() << "\n\n\n=== " << FuncName << "\n");
-
   UniformityInfo *UA = nullptr;
   if (auto *UAPass = MFP.getAnalysisIfAvailable<UniformityInfoWrapperPass>())
     UA = &UAPass->getUniformityInfo();