Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which

must be called in the pass's constructor.  This function uses static dependency declarations to recursively initialize
the pass's dependencies.

Clients that only create passes through the createFooPass() APIs will require no changes.  Clients that want to use the
CommandLine options for passes will need to manually call the appropriate initialization functions in PassInitialization.h
before parsing commandline arguments.

I have tested this with all standard configurations of clang and llvm-gcc on Darwin.  It is possible that there are problems
with the static dependencies that will only be visible with non-standard options.  If you encounter any crash in pass
registration/creation, please send the testcase to me directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116820 91177308-0d34-0410-b5e6-96231b3b80d8

29 files changed, 114 insertions, 30 deletions

diff --git a/lib/CodeGen/CodeGen.cpp b/lib/CodeGen/CodeGen.cpp
index e5199dc..fec98d2 100644
--- a/lib/CodeGen/CodeGen.cpp
+++ b/lib/CodeGen/CodeGen.cpp
@@ -52,6 +52,7 @@ void llvm::initializeCodeGen(PassRegistry &Registry) {
   initializeUnreachableBlockElimPass(Registry);
   initializeUnreachableMachineBlockElimPass(Registry);
   initializeVirtRegMapPass(Registry);
+  initializeLowerIntrinsicsPass(Registry);
 }
 
 void LLVMInitializeCodeGen(LLVMPassRegistryRef R) {
diff --git a/lib/CodeGen/DeadMachineInstructionElim.cpp b/lib/CodeGen/DeadMachineInstructionElim.cpp
index b4f784d..786de1b 100644
--- a/lib/CodeGen/DeadMachineInstructionElim.cpp
+++ b/lib/CodeGen/DeadMachineInstructionElim.cpp
@@ -36,7 +36,9 @@ namespace {
 
   public:
     static char ID; // Pass identification, replacement for typeid
-    DeadMachineInstructionElim() : MachineFunctionPass(ID) {}
+    DeadMachineInstructionElim() : MachineFunctionPass(ID) {
+     initializeDeadMachineInstructionElimPass(*PassRegistry::getPassRegistry());
+    }
 
   private:
     bool isDead(const MachineInstr *MI) const;
diff --git a/lib/CodeGen/DwarfEHPrepare.cpp b/lib/CodeGen/DwarfEHPrepare.cpp
index 550fd3e..f43136a 100644
--- a/lib/CodeGen/DwarfEHPrepare.cpp
+++ b/lib/CodeGen/DwarfEHPrepare.cpp
@@ -100,7 +100,9 @@ namespace {
     DwarfEHPrepare(const TargetMachine *tm) :
       FunctionPass(ID), TM(tm), TLI(TM->getTargetLowering()),
       ExceptionValueIntrinsic(0), SelectorIntrinsic(0),
-      URoR(0), EHCatchAllValue(0), RewindFunction(0) {}
+      URoR(0), EHCatchAllValue(0), RewindFunction(0) {
+        initializeDominatorTreePass(*PassRegistry::getPassRegistry());
+      }
 
     virtual bool runOnFunction(Function &Fn);
 
diff --git a/lib/CodeGen/GCMetadata.cpp b/lib/CodeGen/GCMetadata.cpp
index 98aced9..d757cf4 100644
--- a/lib/CodeGen/GCMetadata.cpp
+++ b/lib/CodeGen/GCMetadata.cpp
@@ -69,7 +69,9 @@ GCFunctionInfo::~GCFunctionInfo() {}
 char GCModuleInfo::ID = 0;
 
 GCModuleInfo::GCModuleInfo()
-  : ImmutablePass(ID) {}
+    : ImmutablePass(ID) {
+  initializeGCModuleInfoPass(*PassRegistry::getPassRegistry());
+}
 
 GCModuleInfo::~GCModuleInfo() {
   clear();
diff --git a/lib/CodeGen/GCStrategy.cpp b/lib/CodeGen/GCStrategy.cpp
index 087b285..4793ba8 100644
--- a/lib/CodeGen/GCStrategy.cpp
+++ b/lib/CodeGen/GCStrategy.cpp
@@ -123,6 +123,11 @@ GCFunctionInfo *GCStrategy::insertFunctionInfo(const Function &F) {
 
 // -----------------------------------------------------------------------------
 
+INITIALIZE_PASS_BEGIN(LowerIntrinsics, "gc-lowering", "GC Lowering",
+                      false, false)
+INITIALIZE_PASS_DEPENDENCY(GCModuleInfo)
+INITIALIZE_PASS_END(LowerIntrinsics, "gc-lowering", "GC Lowering", false, false)
+
 FunctionPass *llvm::createGCLoweringPass() {
   return new LowerIntrinsics();
 }
@@ -130,7 +135,9 @@ FunctionPass *llvm::createGCLoweringPass() {
 char LowerIntrinsics::ID = 0;
 
 LowerIntrinsics::LowerIntrinsics()
-  : FunctionPass(ID) {}
+  : FunctionPass(ID) {
+    initializeLowerIntrinsicsPass(*PassRegistry::getPassRegistry());
+  }
 
 const char *LowerIntrinsics::getPassName() const {
   return "Lower Garbage Collection Instructions";
diff --git a/lib/CodeGen/IfConversion.cpp b/lib/CodeGen/IfConversion.cpp
index 26f3e58..1ee27f0 100644
--- a/lib/CodeGen/IfConversion.cpp
+++ b/lib/CodeGen/IfConversion.cpp
@@ -158,7 +158,9 @@ namespace {
     int FnNum;
   public:
     static char ID;
-    IfConverter() : MachineFunctionPass(ID), FnNum(-1) {}
+    IfConverter() : MachineFunctionPass(ID), FnNum(-1) {
+      initializeIfConverterPass(*PassRegistry::getPassRegistry());
+    }
     
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.addRequired<MachineLoopInfo>();
diff --git a/lib/CodeGen/MachineCSE.cpp b/lib/CodeGen/MachineCSE.cpp
index 544f74f..199885d 100644
--- a/lib/CodeGen/MachineCSE.cpp
+++ b/lib/CodeGen/MachineCSE.cpp
@@ -41,7 +41,9 @@ namespace {
     MachineRegisterInfo *MRI;
   public:
     static char ID; // Pass identification
-    MachineCSE() : MachineFunctionPass(ID), LookAheadLimit(5), CurrVN(0) {}
+    MachineCSE() : MachineFunctionPass(ID), LookAheadLimit(5), CurrVN(0) {
+      initializeMachineCSEPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual bool runOnMachineFunction(MachineFunction &MF);
     
diff --git a/lib/CodeGen/MachineDominators.cpp b/lib/CodeGen/MachineDominators.cpp
index b90607a..04c8ecb 100644
--- a/lib/CodeGen/MachineDominators.cpp
+++ b/lib/CodeGen/MachineDominators.cpp
@@ -42,6 +42,7 @@ bool MachineDominatorTree::runOnMachineFunction(MachineFunction &F) {
 
 MachineDominatorTree::MachineDominatorTree()
     : MachineFunctionPass(ID) {
+  initializeMachineDominatorTreePass(*PassRegistry::getPassRegistry());
   DT = new DominatorTreeBase<MachineBasicBlock>(false);
 }
 
diff --git a/lib/CodeGen/MachineLICM.cpp b/lib/CodeGen/MachineLICM.cpp
index 7ecf126..3e25e91 100644
--- a/lib/CodeGen/MachineLICM.cpp
+++ b/lib/CodeGen/MachineLICM.cpp
@@ -101,10 +101,14 @@ namespace {
   public:
     static char ID; // Pass identification, replacement for typeid
     MachineLICM() :
-      MachineFunctionPass(ID), PreRegAlloc(true) {}
+      MachineFunctionPass(ID), PreRegAlloc(true) {
+        initializeMachineLICMPass(*PassRegistry::getPassRegistry());
+      }
 
     explicit MachineLICM(bool PreRA) :
-      MachineFunctionPass(ID), PreRegAlloc(PreRA) {}
+      MachineFunctionPass(ID), PreRegAlloc(PreRA) {
+        initializeMachineLICMPass(*PassRegistry::getPassRegistry());
+      }
 
     virtual bool runOnMachineFunction(MachineFunction &MF);
 
diff --git a/lib/CodeGen/MachineModuleInfo.cpp b/lib/CodeGen/MachineModuleInfo.cpp
index 25dda0a..5c8b3731 100644
--- a/lib/CodeGen/MachineModuleInfo.cpp
+++ b/lib/CodeGen/MachineModuleInfo.cpp
@@ -258,6 +258,7 @@ MachineModuleInfo::MachineModuleInfo(const MCAsmInfo &MAI)
   ObjFileMMI(0),
   CurCallSite(0), CallsEHReturn(0), CallsUnwindInit(0), DbgInfoAvailable(false),
   CallsExternalFunctionWithFloatingPointArguments(false) {
+  initializeMachineModuleInfoPass(*PassRegistry::getPassRegistry());
   // Always emit some info, by default "no personality" info.
   Personalities.push_back(NULL);
   AddrLabelSymbols = 0;
diff --git a/lib/CodeGen/MachineSink.cpp b/lib/CodeGen/MachineSink.cpp
index ec8f713..8a93a24 100644
--- a/lib/CodeGen/MachineSink.cpp
+++ b/lib/CodeGen/MachineSink.cpp
@@ -57,7 +57,9 @@ namespace {
 
   public:
     static char ID; // Pass identification
-    MachineSinking() : MachineFunctionPass(ID) {}
+    MachineSinking() : MachineFunctionPass(ID) {
+      initializeMachineSinkingPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual bool runOnMachineFunction(MachineFunction &MF);
 
diff --git a/lib/CodeGen/MachineVerifier.cpp b/lib/CodeGen/MachineVerifier.cpp
index d7d38e2..15bc095 100644
--- a/lib/CodeGen/MachineVerifier.cpp
+++ b/lib/CodeGen/MachineVerifier.cpp
@@ -195,7 +195,9 @@ namespace {
     static char ID; // Pass ID, replacement for typeid
 
     MachineVerifierPass()
-      : MachineFunctionPass(ID) {}
+      : MachineFunctionPass(ID) {
+        initializeMachineVerifierPassPass(*PassRegistry::getPassRegistry());
+      }
 
     void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.setPreservesAll();
diff --git a/lib/CodeGen/OptimizePHIs.cpp b/lib/CodeGen/OptimizePHIs.cpp
index cfdf46d..c05be13 100644
--- a/lib/CodeGen/OptimizePHIs.cpp
+++ b/lib/CodeGen/OptimizePHIs.cpp
@@ -33,7 +33,9 @@ namespace {
 
   public:
     static char ID; // Pass identification
-    OptimizePHIs() : MachineFunctionPass(ID) {}
+    OptimizePHIs() : MachineFunctionPass(ID) {
+      initializeOptimizePHIsPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual bool runOnMachineFunction(MachineFunction &MF);
 
diff --git a/lib/CodeGen/PHIElimination.h b/lib/CodeGen/PHIElimination.h
index 45a9718..6fd2662 100644
--- a/lib/CodeGen/PHIElimination.h
+++ b/lib/CodeGen/PHIElimination.h
@@ -27,7 +27,9 @@ namespace llvm {
 
   public:
     static char ID; // Pass identification, replacement for typeid
-    PHIElimination() : MachineFunctionPass(ID) {}
+    PHIElimination() : MachineFunctionPass(ID) {
+      initializePHIEliminationPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual bool runOnMachineFunction(MachineFunction &Fn);
     
diff --git a/lib/CodeGen/PeepholeOptimizer.cpp b/lib/CodeGen/PeepholeOptimizer.cpp
index 7ae6d5f..210f886 100644
--- a/lib/CodeGen/PeepholeOptimizer.cpp
+++ b/lib/CodeGen/PeepholeOptimizer.cpp
@@ -62,7 +62,9 @@ namespace {
 
   public:
     static char ID; // Pass identification
-    PeepholeOptimizer() : MachineFunctionPass(ID) {}
+    PeepholeOptimizer() : MachineFunctionPass(ID) {
+      initializePeepholeOptimizerPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual bool runOnMachineFunction(MachineFunction &MF);
 
diff --git a/lib/CodeGen/PreAllocSplitting.cpp b/lib/CodeGen/PreAllocSplitting.cpp
index 73d1b67..837a526 100644
--- a/lib/CodeGen/PreAllocSplitting.cpp
+++ b/lib/CodeGen/PreAllocSplitting.cpp
@@ -91,8 +91,9 @@ namespace {
 
   public:
     static char ID;
-    PreAllocSplitting()
-      : MachineFunctionPass(ID) {}
+    PreAllocSplitting() : MachineFunctionPass(ID) {
+      initializePreAllocSplittingPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual bool runOnMachineFunction(MachineFunction &MF);
 
diff --git a/lib/CodeGen/PrologEpilogInserter.h b/lib/CodeGen/PrologEpilogInserter.h
index d575124..e239159 100644
--- a/lib/CodeGen/PrologEpilogInserter.h
+++ b/lib/CodeGen/PrologEpilogInserter.h
@@ -36,7 +36,9 @@ namespace llvm {
   class PEI : public MachineFunctionPass {
   public:
     static char ID;
-    PEI() : MachineFunctionPass(ID) {}
+    PEI() : MachineFunctionPass(ID) {
+      initializePEIPass(*PassRegistry::getPassRegistry());
+    }
 
     const char *getPassName() const {
       return "Prolog/Epilog Insertion & Frame Finalization";
diff --git a/lib/CodeGen/RegAllocFast.cpp b/lib/CodeGen/RegAllocFast.cpp
index 8301402..ede5dc4 100644
--- a/lib/CodeGen/RegAllocFast.cpp
+++ b/lib/CodeGen/RegAllocFast.cpp
@@ -48,7 +48,10 @@ namespace {
   public:
     static char ID;
     RAFast() : MachineFunctionPass(ID), StackSlotForVirtReg(-1),
-               isBulkSpilling(false) {}
+               isBulkSpilling(false) {
+      initializePHIEliminationPass(*PassRegistry::getPassRegistry());
+      initializeTwoAddressInstructionPassPass(*PassRegistry::getPassRegistry());
+    }
   private:
     const TargetMachine *TM;
     MachineFunction *MF;
diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp
index 5485ba2..3972219 100644
--- a/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/lib/CodeGen/RegAllocLinearScan.cpp
@@ -91,6 +91,17 @@ namespace {
   struct RALinScan : public MachineFunctionPass {
     static char ID;
     RALinScan() : MachineFunctionPass(ID) {
+      initializeLiveIntervalsPass(*PassRegistry::getPassRegistry());
+      initializeStrongPHIEliminationPass(*PassRegistry::getPassRegistry());
+      initializeRegisterCoalescerAnalysisGroup(
+        *PassRegistry::getPassRegistry());
+      initializeCalculateSpillWeightsPass(*PassRegistry::getPassRegistry());
+      initializePreAllocSplittingPass(*PassRegistry::getPassRegistry());
+      initializeLiveStacksPass(*PassRegistry::getPassRegistry());
+      initializeMachineLoopInfoPass(*PassRegistry::getPassRegistry());
+      initializeVirtRegMapPass(*PassRegistry::getPassRegistry());
+      initializeMachineDominatorTreePass(*PassRegistry::getPassRegistry());
+      
       // Initialize the queue to record recently-used registers.
       if (NumRecentlyUsedRegs > 0)
         RecentRegs.resize(NumRecentlyUsedRegs, 0);
diff --git a/lib/CodeGen/RegAllocPBQP.cpp b/lib/CodeGen/RegAllocPBQP.cpp
index 6907321..f36d7d3 100644
--- a/lib/CodeGen/RegAllocPBQP.cpp
+++ b/lib/CodeGen/RegAllocPBQP.cpp
@@ -84,7 +84,18 @@ public:
   static char ID;
 
   /// Construct a PBQP register allocator.
-  RegAllocPBQP(std::auto_ptr<PBQPBuilder> b) : MachineFunctionPass(ID), builder(b) {}
+  RegAllocPBQP(std::auto_ptr<PBQPBuilder> b)
+      : MachineFunctionPass(ID), builder(b) {
+    initializeSlotIndexesPass(*PassRegistry::getPassRegistry());
+    initializeLiveIntervalsPass(*PassRegistry::getPassRegistry());
+    initializeRegisterCoalescerAnalysisGroup(*PassRegistry::getPassRegistry());
+    initializeCalculateSpillWeightsPass(*PassRegistry::getPassRegistry());
+    initializeLiveStacksPass(*PassRegistry::getPassRegistry());
+    initializeMachineLoopInfoPass(*PassRegistry::getPassRegistry());
+    initializeLoopSplitterPass(*PassRegistry::getPassRegistry());
+    initializeVirtRegMapPass(*PassRegistry::getPassRegistry());
+    initializeRenderMachineFunctionPass(*PassRegistry::getPassRegistry());
+  }
 
   /// Return the pass name.
   virtual const char* getPassName() const {
diff --git a/lib/CodeGen/RenderMachineFunction.h b/lib/CodeGen/RenderMachineFunction.h
index 8d56a82..8571992 100644
--- a/lib/CodeGen/RenderMachineFunction.h
+++ b/lib/CodeGen/RenderMachineFunction.h
@@ -202,7 +202,9 @@ namespace llvm {
   public:
     static char ID;
 
-    RenderMachineFunction() : MachineFunctionPass(ID) {}
+    RenderMachineFunction() : MachineFunctionPass(ID) {
+      initializeRenderMachineFunctionPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual void getAnalysisUsage(AnalysisUsage &au) const;
 
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 450b7ef..aa84861 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -177,8 +177,10 @@ SelectionDAGISel::SelectionDAGISel(const TargetMachine &tm, CodeGenOpt::Level OL
   SDB(new SelectionDAGBuilder(*CurDAG, *FuncInfo, OL)),
   GFI(),
   OptLevel(OL),
-  DAGSize(0)
-{}
+  DAGSize(0) {
+    initializeGCModuleInfoPass(*PassRegistry::getPassRegistry());
+    initializeAliasAnalysisAnalysisGroup(*PassRegistry::getPassRegistry());
+  }
 
 SelectionDAGISel::~SelectionDAGISel() {
   delete SDB;
diff --git a/lib/CodeGen/SimpleRegisterCoalescing.h b/lib/CodeGen/SimpleRegisterCoalescing.h
index 855bdb9..2d56a2f 100644
--- a/lib/CodeGen/SimpleRegisterCoalescing.h
+++ b/lib/CodeGen/SimpleRegisterCoalescing.h
@@ -63,7 +63,9 @@ namespace llvm {
 
   public:
     static char ID; // Pass identifcation, replacement for typeid
-    SimpleRegisterCoalescing() : MachineFunctionPass(ID) {}
+    SimpleRegisterCoalescing() : MachineFunctionPass(ID) {
+      initializeSimpleRegisterCoalescingPass(*PassRegistry::getPassRegistry());
+    }
 
     struct InstrSlots {
       enum {
diff --git a/lib/CodeGen/Splitter.h b/lib/CodeGen/Splitter.h
index a726a7b..9fb1b8b 100644
--- a/lib/CodeGen/Splitter.h
+++ b/lib/CodeGen/Splitter.h
@@ -36,7 +36,9 @@ namespace llvm {
   public:
     static char ID;
 
-    LoopSplitter() : MachineFunctionPass(ID) {}
+    LoopSplitter() : MachineFunctionPass(ID) {
+      initializeLoopSplitterPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual void getAnalysisUsage(AnalysisUsage &au) const;
 
diff --git a/lib/CodeGen/StackProtector.cpp b/lib/CodeGen/StackProtector.cpp
index eb21e15..61dd7b1 100644
--- a/lib/CodeGen/StackProtector.cpp
+++ b/lib/CodeGen/StackProtector.cpp
@@ -62,9 +62,13 @@ namespace {
     bool RequiresStackProtector() const;
   public:
     static char ID;             // Pass identification, replacement for typeid.
-    StackProtector() : FunctionPass(ID), TLI(0) {}
+    StackProtector() : FunctionPass(ID), TLI(0) {
+      initializeStackProtectorPass(*PassRegistry::getPassRegistry());
+    }
     StackProtector(const TargetLowering *tli)
-      : FunctionPass(ID), TLI(tli) {}
+      : FunctionPass(ID), TLI(tli) {
+        initializeStackProtectorPass(*PassRegistry::getPassRegistry());
+      }
 
     virtual bool runOnFunction(Function &Fn);
   };
diff --git a/lib/CodeGen/StackSlotColoring.cpp b/lib/CodeGen/StackSlotColoring.cpp
index ce67595..9b7f553 100644
--- a/lib/CodeGen/StackSlotColoring.cpp
+++ b/lib/CodeGen/StackSlotColoring.cpp
@@ -95,9 +95,13 @@ namespace {
   public:
     static char ID; // Pass identification
     StackSlotColoring() :
-      MachineFunctionPass(ID), ColorWithRegs(false), NextColor(-1) {}
+      MachineFunctionPass(ID), ColorWithRegs(false), NextColor(-1) {
+        initializeStackSlotColoringPass(*PassRegistry::getPassRegistry());
+      }
     StackSlotColoring(bool RegColor) :
-      MachineFunctionPass(ID), ColorWithRegs(RegColor), NextColor(-1) {}
+      MachineFunctionPass(ID), ColorWithRegs(RegColor), NextColor(-1) {
+        initializeStackSlotColoringPass(*PassRegistry::getPassRegistry());
+      }
     
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.setPreservesCFG();
diff --git a/lib/CodeGen/StrongPHIElimination.cpp b/lib/CodeGen/StrongPHIElimination.cpp
index 223f0a28..0bf6f8e 100644
--- a/lib/CodeGen/StrongPHIElimination.cpp
+++ b/lib/CodeGen/StrongPHIElimination.cpp
@@ -39,7 +39,9 @@ using namespace llvm;
 namespace {
   struct StrongPHIElimination : public MachineFunctionPass {
     static char ID; // Pass identification, replacement for typeid
-    StrongPHIElimination() : MachineFunctionPass(ID) {}
+    StrongPHIElimination() : MachineFunctionPass(ID) {
+      initializeStrongPHIEliminationPass(*PassRegistry::getPassRegistry());
+    }
 
     // Waiting stores, for each MBB, the set of copies that need to
     // be inserted into that MBB
diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp
index 299f763..2030f17 100644
--- a/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ b/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -138,7 +138,9 @@ namespace {
 
   public:
     static char ID; // Pass identification, replacement for typeid
-    TwoAddressInstructionPass() : MachineFunctionPass(ID) {}
+    TwoAddressInstructionPass() : MachineFunctionPass(ID) {
+      initializeTwoAddressInstructionPassPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.setPreservesCFG();
diff --git a/lib/CodeGen/UnreachableBlockElim.cpp b/lib/CodeGen/UnreachableBlockElim.cpp
index 0e8a8a7..4fdb228 100644
--- a/lib/CodeGen/UnreachableBlockElim.cpp
+++ b/lib/CodeGen/UnreachableBlockElim.cpp
@@ -43,7 +43,9 @@ namespace {
     virtual bool runOnFunction(Function &F);
   public:
     static char ID; // Pass identification, replacement for typeid
-    UnreachableBlockElim() : FunctionPass(ID) {}
+    UnreachableBlockElim() : FunctionPass(ID) {
+      initializeUnreachableBlockElimPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.addPreserved<ProfileInfo>();