diff --git a/llvm/lib/Target/AArch64/AArch64.h b/llvm/lib/Target/AArch64/AArch64.h
--- a/llvm/lib/Target/AArch64/AArch64.h
+++ b/llvm/lib/Target/AArch64/AArch64.h
@@ -76,35 +76,36 @@
 void initializeAArch64AdvSIMDScalarPass(PassRegistry&);
 void initializeAArch64BranchTargetsPass(PassRegistry&);
 void initializeAArch64CFIFixupPass(PassRegistry&);
-void initializeAArch64CollectLOHPass(PassRegistry&);
-void initializeAArch64CondBrTuningPass(PassRegistry &);
+void initializeAArch64CollectLOHPass(PassRegistry &);
 void initializeAArch64CompressJumpTablesPass(PassRegistry&);
-void initializeAArch64ConditionalComparesPass(PassRegistry&);
+void initializeAArch64CondBrTuningPass(PassRegistry &);
 void initializeAArch64ConditionOptimizerPass(PassRegistry&);
+void initializeAArch64ConditionalComparesPass(PassRegistry &);
+void initializeAArch64DAGToDAGISelPass(PassRegistry &);
 void initializeAArch64DeadRegisterDefinitionsPass(PassRegistry&);
-void initializeAArch64ExpandPseudoPass(PassRegistry&);
-void initializeAArch64SLSHardeningPass(PassRegistry&);
-void initializeAArch64SpeculationHardeningPass(PassRegistry&);
+void initializeAArch64ExpandPseudoPass(PassRegistry &);
 void initializeAArch64KCFIPass(PassRegistry &);
 void initializeAArch64LoadStoreOptPass(PassRegistry&);
 void initializeAArch64LowerHomogeneousPrologEpilogPass(PassRegistry &);
 void initializeAArch64MIPeepholeOptPass(PassRegistry &);
-void initializeAArch64SIMDInstrOptPass(PassRegistry&);
 void initializeAArch64O0PreLegalizerCombinerPass(PassRegistry &);
-void initializeAArch64PreLegalizerCombinerPass(PassRegistry&);
 void initializeAArch64PostLegalizerCombinerPass(PassRegistry &);
 void initializeAArch64PostLegalizerLoweringPass(PassRegistry &);
 void initializeAArch64PostSelectOptimizePass(PassRegistry &);
+void initializeAArch64PreLegalizerCombinerPass(PassRegistry &);
 void initializeAArch64PromoteConstantPass(PassRegistry&);
 void initializeAArch64RedundantCopyEliminationPass(PassRegistry&);
+void initializeAArch64SIMDInstrOptPass(PassRegistry &);
+void initializeAArch64SLSHardeningPass(PassRegistry &);
+void initializeAArch64SpeculationHardeningPass(PassRegistry &);
+void initializeAArch64StackTaggingPass(PassRegistry &);
+void initializeAArch64StackTaggingPreRAPass(PassRegistry &);
 void initializeAArch64StorePairSuppressPass(PassRegistry&);
 void initializeFalkorHWPFFixPass(PassRegistry&);
 void initializeFalkorMarkStridedAccessesLegacyPass(PassRegistry&);
 void initializeLDTLSCleanupPass(PassRegistry&);
 void initializeSMEABIPass(PassRegistry &);
-void initializeSVEIntrinsicOptsPass(PassRegistry&);
-void initializeAArch64StackTaggingPass(PassRegistry&);
-void initializeAArch64StackTaggingPreRAPass(PassRegistry&);
+void initializeSVEIntrinsicOptsPass(PassRegistry &);
 } // end namespace llvm
 
 #endif
diff --git a/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp b/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
--- a/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
+++ b/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
@@ -29,6 +29,7 @@
 using namespace llvm;
 
 #define DEBUG_TYPE "aarch64-isel"
+#define PASS_NAME "AArch64 Instruction Selection"
 
 //===--------------------------------------------------------------------===//
 /// AArch64DAGToDAGISel - AArch64 specific code to select AArch64 machine
@@ -51,9 +52,7 @@
                                CodeGenOpt::Level OptLevel)
       : SelectionDAGISel(ID, tm, OptLevel), Subtarget(nullptr) {}
 
-  StringRef getPassName() const override {
-    return "AArch64 Instruction Selection";
-  }
+  StringRef getPassName() const override { return PASS_NAME; }
 
   bool runOnMachineFunction(MachineFunction &MF) override {
     Subtarget = &MF.getSubtarget<AArch64Subtarget>();
@@ -425,6 +424,8 @@
 
 char AArch64DAGToDAGISel::ID = 0;
 
+INITIALIZE_PASS(AArch64DAGToDAGISel, 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.
 static bool isIntImmediate(const SDNode *N, uint64_t &Imm) {
diff --git a/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp b/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
--- a/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
+++ b/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
@@ -237,6 +237,7 @@
   initializeAArch64StackTaggingPass(*PR);
   initializeAArch64StackTaggingPreRAPass(*PR);
   initializeAArch64LowerHomogeneousPrologEpilogPass(*PR);
+  initializeAArch64DAGToDAGISelPass(*PR);
 }
 
 //===----------------------------------------------------------------------===//