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.

llvm-svn: 116820

29 files changed, 91 insertions, 30 deletions

diff --git a/llvm/lib/Transforms/Scalar/ADCE.cpp b/llvm/lib/Transforms/Scalar/ADCE.cpp
index ac6fa8ea2e7..a5adb5e7cef 100644
--- a/llvm/lib/Transforms/Scalar/ADCE.cpp
+++ b/llvm/lib/Transforms/Scalar/ADCE.cpp
@@ -33,7 +33,9 @@ STATISTIC(NumRemoved, "Number of instructions removed");
 namespace {
   struct ADCE : public FunctionPass {
     static char ID; // Pass identification, replacement for typeid
-    ADCE() : FunctionPass(ID) {}
+    ADCE() : FunctionPass(ID) {
+      initializeADCEPass(*PassRegistry::getPassRegistry());
+    }
     
     virtual bool runOnFunction(Function& F);
     
diff --git a/llvm/lib/Transforms/Scalar/BasicBlockPlacement.cpp b/llvm/lib/Transforms/Scalar/BasicBlockPlacement.cpp
index 1ba81598f05..cee55026562 100644
--- a/llvm/lib/Transforms/Scalar/BasicBlockPlacement.cpp
+++ b/llvm/lib/Transforms/Scalar/BasicBlockPlacement.cpp
@@ -41,7 +41,9 @@ STATISTIC(NumMoved, "Number of basic blocks moved");
 namespace {
   struct BlockPlacement : public FunctionPass {
     static char ID; // Pass identification, replacement for typeid
-    BlockPlacement() : FunctionPass(ID) {}
+    BlockPlacement() : FunctionPass(ID) {
+      initializeBlockPlacementPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual bool runOnFunction(Function &F);
 
diff --git a/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp b/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp
index 980e8f8f0fb..1d05196d2a0 100644
--- a/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp
+++ b/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp
@@ -63,7 +63,9 @@ namespace {
   public:
     static char ID; // Pass identification, replacement for typeid
     explicit CodeGenPrepare(const TargetLowering *tli = 0)
-      : FunctionPass(ID), TLI(tli) {}
+      : FunctionPass(ID), TLI(tli) {
+        initializeCodeGenPreparePass(*PassRegistry::getPassRegistry());
+      }
     bool runOnFunction(Function &F);
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
diff --git a/llvm/lib/Transforms/Scalar/ConstantProp.cpp b/llvm/lib/Transforms/Scalar/ConstantProp.cpp
index efc0551b7eb..664c3f6a222 100644
--- a/llvm/lib/Transforms/Scalar/ConstantProp.cpp
+++ b/llvm/lib/Transforms/Scalar/ConstantProp.cpp
@@ -34,7 +34,9 @@ STATISTIC(NumInstKilled, "Number of instructions killed");
 namespace {
   struct ConstantPropagation : public FunctionPass {
     static char ID; // Pass identification, replacement for typeid
-    ConstantPropagation() : FunctionPass(ID) {}
+    ConstantPropagation() : FunctionPass(ID) {
+      initializeConstantPropagationPass(*PassRegistry::getPassRegistry());
+    }
 
     bool runOnFunction(Function &F);
 
diff --git a/llvm/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp b/llvm/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
index bae8a92cdd0..0f8f6d28e4f 100644
--- a/llvm/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
+++ b/llvm/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
@@ -39,7 +39,9 @@ namespace {
     
   public:
     static char ID;
-    CorrelatedValuePropagation(): FunctionPass(ID) { }
+    CorrelatedValuePropagation(): FunctionPass(ID) {
+     initializeCorrelatedValuePropagationPass(*PassRegistry::getPassRegistry());
+    }
     
     bool runOnFunction(Function &F);
     
diff --git a/llvm/lib/Transforms/Scalar/DCE.cpp b/llvm/lib/Transforms/Scalar/DCE.cpp
index 978769f23b8..dbb68f3e0bd 100644
--- a/llvm/lib/Transforms/Scalar/DCE.cpp
+++ b/llvm/lib/Transforms/Scalar/DCE.cpp
@@ -35,7 +35,9 @@ namespace {
   //
   struct DeadInstElimination : public BasicBlockPass {
     static char ID; // Pass identification, replacement for typeid
-    DeadInstElimination() : BasicBlockPass(ID) {}
+    DeadInstElimination() : BasicBlockPass(ID) {
+      initializeDeadInstEliminationPass(*PassRegistry::getPassRegistry());
+    }
     virtual bool runOnBasicBlock(BasicBlock &BB) {
       bool Changed = false;
       for (BasicBlock::iterator DI = BB.begin(); DI != BB.end(); ) {
@@ -70,7 +72,9 @@ namespace {
   //
   struct DCE : public FunctionPass {
     static char ID; // Pass identification, replacement for typeid
-    DCE() : FunctionPass(ID) {}
+    DCE() : FunctionPass(ID) {
+      initializeDCEPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual bool runOnFunction(Function &F);
 
diff --git a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
index fdace9f3a04..26cb3a6a29b 100644
--- a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
@@ -40,7 +40,9 @@ namespace {
     TargetData *TD;
 
     static char ID; // Pass identification, replacement for typeid
-    DSE() : FunctionPass(ID) {}
+    DSE() : FunctionPass(ID) {
+      initializeDSEPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual bool runOnFunction(Function &F) {
       bool Changed = false;
diff --git a/llvm/lib/Transforms/Scalar/GEPSplitter.cpp b/llvm/lib/Transforms/Scalar/GEPSplitter.cpp
index 4ae9bb104d2..4c3d188a8af 100644
--- a/llvm/lib/Transforms/Scalar/GEPSplitter.cpp
+++ b/llvm/lib/Transforms/Scalar/GEPSplitter.cpp
@@ -27,7 +27,9 @@ namespace {
     virtual void getAnalysisUsage(AnalysisUsage &AU) const;
   public:
     static char ID; // Pass identification, replacement for typeid
-    explicit GEPSplitter() : FunctionPass(ID) {}
+    explicit GEPSplitter() : FunctionPass(ID) {
+      initializeGEPSplitterPass(*PassRegistry::getPassRegistry());
+    }
   };
 }
 
diff --git a/llvm/lib/Transforms/Scalar/GVN.cpp b/llvm/lib/Transforms/Scalar/GVN.cpp
index ce5bd7ca089..a65ca1dbe77 100644
--- a/llvm/lib/Transforms/Scalar/GVN.cpp
+++ b/llvm/lib/Transforms/Scalar/GVN.cpp
@@ -662,7 +662,9 @@ namespace {
   public:
     static char ID; // Pass identification, replacement for typeid
     explicit GVN(bool noloads = false)
-      : FunctionPass(ID), NoLoads(noloads), MD(0) { }
+        : FunctionPass(ID), NoLoads(noloads), MD(0) {
+      initializeGVNPass(*PassRegistry::getPassRegistry());
+    }
 
   private:
     bool NoLoads;
diff --git a/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp b/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
index 7b0cffa3069..0fad048cdbb 100644
--- a/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
+++ b/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
@@ -77,7 +77,9 @@ namespace {
   public:
 
     static char ID; // Pass identification, replacement for typeid
-    IndVarSimplify() : LoopPass(ID) {}
+    IndVarSimplify() : LoopPass(ID) {
+      initializeIndVarSimplifyPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual bool runOnLoop(Loop *L, LPPassManager &LPM);
 
diff --git a/llvm/lib/Transforms/Scalar/JumpThreading.cpp b/llvm/lib/Transforms/Scalar/JumpThreading.cpp
index 70e6cfdfb5d..8f12ee0b616 100644
--- a/llvm/lib/Transforms/Scalar/JumpThreading.cpp
+++ b/llvm/lib/Transforms/Scalar/JumpThreading.cpp
@@ -86,7 +86,9 @@ namespace {
     };
   public:
     static char ID; // Pass identification
-    JumpThreading() : FunctionPass(ID) {}
+    JumpThreading() : FunctionPass(ID) {
+      initializeJumpThreadingPass(*PassRegistry::getPassRegistry());
+    }
 
     bool runOnFunction(Function &F);
     
diff --git a/llvm/lib/Transforms/Scalar/LICM.cpp b/llvm/lib/Transforms/Scalar/LICM.cpp
index 12fcd028f50..3fe256dba7c 100644
--- a/llvm/lib/Transforms/Scalar/LICM.cpp
+++ b/llvm/lib/Transforms/Scalar/LICM.cpp
@@ -67,7 +67,9 @@ DisablePromotion("disable-licm-promotion", cl::Hidden,
 namespace {
   struct LICM : public LoopPass {
     static char ID; // Pass identification, replacement for typeid
-    LICM() : LoopPass(ID) {}
+    LICM() : LoopPass(ID) {
+      initializeLICMPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual bool runOnLoop(Loop *L, LPPassManager &LPM);
 
diff --git a/llvm/lib/Transforms/Scalar/LoopDeletion.cpp b/llvm/lib/Transforms/Scalar/LoopDeletion.cpp
index d2d77609d9d..ba98594787d 100644
--- a/llvm/lib/Transforms/Scalar/LoopDeletion.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopDeletion.cpp
@@ -28,7 +28,9 @@ namespace {
   class LoopDeletion : public LoopPass {
   public:
     static char ID; // Pass ID, replacement for typeid
-    LoopDeletion() : LoopPass(ID) {}
+    LoopDeletion() : LoopPass(ID) {
+      initializeLoopDeletionPass(*PassRegistry::getPassRegistry());
+    }
     
     // Possibly eliminate loop L if it is dead.
     bool runOnLoop(Loop* L, LPPassManager& LPM);
diff --git a/llvm/lib/Transforms/Scalar/LoopRotation.cpp b/llvm/lib/Transforms/Scalar/LoopRotation.cpp
index e73b85d9e98..6faf9bdd49a 100644
--- a/llvm/lib/Transforms/Scalar/LoopRotation.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopRotation.cpp
@@ -35,7 +35,9 @@ namespace {
   class LoopRotate : public LoopPass {
   public:
     static char ID; // Pass ID, replacement for typeid
-    LoopRotate() : LoopPass(ID) {}
+    LoopRotate() : LoopPass(ID) {
+      initializeLoopRotatePass(*PassRegistry::getPassRegistry());
+    }
 
     // Rotate Loop L as many times as possible. Return true if
     // loop is rotated at least once.
diff --git a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index 4b1d86c38fe..b2c039d38db 100644
--- a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -3807,7 +3807,9 @@ Pass *llvm::createLoopStrengthReducePass(const TargetLowering *TLI) {
 }
 
 LoopStrengthReduce::LoopStrengthReduce(const TargetLowering *tli)
-  : LoopPass(ID), TLI(tli) {}
+  : LoopPass(ID), TLI(tli) {
+    initializeLoopStrengthReducePass(*PassRegistry::getPassRegistry());
+  }
 
 void LoopStrengthReduce::getAnalysisUsage(AnalysisUsage &AU) const {
   // We split critical edges, so we change the CFG.  However, we do update
diff --git a/llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp b/llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp
index 8429ba47ecf..dabb9481b4a 100644
--- a/llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp
@@ -43,7 +43,9 @@ namespace {
   class LoopUnroll : public LoopPass {
   public:
     static char ID; // Pass ID, replacement for typeid
-    LoopUnroll() : LoopPass(ID) {}
+    LoopUnroll() : LoopPass(ID) {
+      initializeLoopUnrollPass(*PassRegistry::getPassRegistry());
+    }
 
     /// A magic value for use with the Threshold parameter to indicate
     /// that the loop unroll should be performed regardless of how much
diff --git a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
index 6f3a15bb7f4..a217e8644a8 100644
--- a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -93,7 +93,9 @@ namespace {
     explicit LoopUnswitch(bool Os = false) : 
       LoopPass(ID), OptimizeForSize(Os), redoLoop(false), 
       currentLoop(NULL), DT(NULL), loopHeader(NULL),
-      loopPreheader(NULL) {}
+      loopPreheader(NULL) {
+        initializeLoopUnswitchPass(*PassRegistry::getPassRegistry());
+      }
 
     bool runOnLoop(Loop *L, LPPassManager &LPM);
     bool processCurrentLoop();
diff --git a/llvm/lib/Transforms/Scalar/LowerAtomic.cpp b/llvm/lib/Transforms/Scalar/LowerAtomic.cpp
index b41f25479a9..9087b46c138 100644
--- a/llvm/lib/Transforms/Scalar/LowerAtomic.cpp
+++ b/llvm/lib/Transforms/Scalar/LowerAtomic.cpp
@@ -118,7 +118,9 @@ static bool LowerAtomicIntrinsic(IntrinsicInst *II) {
 namespace {
   struct LowerAtomic : public BasicBlockPass {
     static char ID;
-    LowerAtomic() : BasicBlockPass(ID) {}
+    LowerAtomic() : BasicBlockPass(ID) {
+      initializeLowerAtomicPass(*PassRegistry::getPassRegistry());
+    }
     bool runOnBasicBlock(BasicBlock &BB) {
       bool Changed = false;
       for (BasicBlock::iterator DI = BB.begin(), DE = BB.end(); DI != DE; )
diff --git a/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp b/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp
index e867991db32..d4a9171e858 100644
--- a/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp
+++ b/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp
@@ -304,7 +304,9 @@ namespace {
     bool runOnFunction(Function &F);
   public:
     static char ID; // Pass identification, replacement for typeid
-    MemCpyOpt() : FunctionPass(ID) {}
+    MemCpyOpt() : FunctionPass(ID) {
+      initializeMemCpyOptPass(*PassRegistry::getPassRegistry());
+    }
 
   private:
     // This transformation requires dominator postdominator info
diff --git a/llvm/lib/Transforms/Scalar/Reassociate.cpp b/llvm/lib/Transforms/Scalar/Reassociate.cpp
index 0d51b832af8..46b7f952581 100644
--- a/llvm/lib/Transforms/Scalar/Reassociate.cpp
+++ b/llvm/lib/Transforms/Scalar/Reassociate.cpp
@@ -77,7 +77,9 @@ namespace {
     bool MadeChange;
   public:
     static char ID; // Pass identification, replacement for typeid
-    Reassociate() : FunctionPass(ID) {}
+    Reassociate() : FunctionPass(ID) {
+      initializeReassociatePass(*PassRegistry::getPassRegistry());
+    }
 
     bool runOnFunction(Function &F);
 
diff --git a/llvm/lib/Transforms/Scalar/Reg2Mem.cpp b/llvm/lib/Transforms/Scalar/Reg2Mem.cpp
index e1ed060bfd2..459bb0621f8 100644
--- a/llvm/lib/Transforms/Scalar/Reg2Mem.cpp
+++ b/llvm/lib/Transforms/Scalar/Reg2Mem.cpp
@@ -36,7 +36,9 @@ STATISTIC(NumPhisDemoted, "Number of phi-nodes demoted");
 namespace {
   struct RegToMem : public FunctionPass {
     static char ID; // Pass identification, replacement for typeid
-    RegToMem() : FunctionPass(ID) {}
+    RegToMem() : FunctionPass(ID) {
+      initializeRegToMemPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.addRequiredID(BreakCriticalEdgesID);
diff --git a/llvm/lib/Transforms/Scalar/SCCP.cpp b/llvm/lib/Transforms/Scalar/SCCP.cpp
index f6778f366fa..621508f7a89 100644
--- a/llvm/lib/Transforms/Scalar/SCCP.cpp
+++ b/llvm/lib/Transforms/Scalar/SCCP.cpp
@@ -1585,7 +1585,9 @@ namespace {
   ///
   struct SCCP : public FunctionPass {
     static char ID; // Pass identification, replacement for typeid
-    SCCP() : FunctionPass(ID) {}
+    SCCP() : FunctionPass(ID) {
+      initializeSCCPPass(*PassRegistry::getPassRegistry());
+    }
 
     // runOnFunction - Run the Sparse Conditional Constant Propagation
     // algorithm, and return true if the function was modified.
@@ -1701,7 +1703,9 @@ namespace {
   ///
   struct IPSCCP : public ModulePass {
     static char ID;
-    IPSCCP() : ModulePass(ID) {}
+    IPSCCP() : ModulePass(ID) {
+      initializeIPSCCPPass(*PassRegistry::getPassRegistry());
+    }
     bool runOnModule(Module &M);
   };
 } // end anonymous namespace
diff --git a/llvm/lib/Transforms/Scalar/ScalarReplAggregates.cpp b/llvm/lib/Transforms/Scalar/ScalarReplAggregates.cpp
index 51b721a5ca2..8b4f35570d0 100644
--- a/llvm/lib/Transforms/Scalar/ScalarReplAggregates.cpp
+++ b/llvm/lib/Transforms/Scalar/ScalarReplAggregates.cpp
@@ -53,6 +53,7 @@ namespace {
   struct SROA : public FunctionPass {
     static char ID; // Pass identification, replacement for typeid
     explicit SROA(signed T = -1) : FunctionPass(ID) {
+      initializeSROAPass(*PassRegistry::getPassRegistry());
       if (T == -1)
         SRThreshold = 128;
       else
diff --git a/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp b/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp
index 692e26ecabe..ce5dd73ace3 100644
--- a/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp
+++ b/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp
@@ -42,7 +42,9 @@ STATISTIC(NumSimpl, "Number of blocks simplified");
 namespace {
   struct CFGSimplifyPass : public FunctionPass {
     static char ID; // Pass identification, replacement for typeid
-    CFGSimplifyPass() : FunctionPass(ID) {}
+    CFGSimplifyPass() : FunctionPass(ID) {
+      initializeCFGSimplifyPassPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual bool runOnFunction(Function &F);
   };
diff --git a/llvm/lib/Transforms/Scalar/SimplifyHalfPowrLibCalls.cpp b/llvm/lib/Transforms/Scalar/SimplifyHalfPowrLibCalls.cpp
index 885a7ed958e..87c9d63d58f 100644
--- a/llvm/lib/Transforms/Scalar/SimplifyHalfPowrLibCalls.cpp
+++ b/llvm/lib/Transforms/Scalar/SimplifyHalfPowrLibCalls.cpp
@@ -32,7 +32,9 @@ namespace {
     const TargetData *TD;
   public:
     static char ID; // Pass identification
-    SimplifyHalfPowrLibCalls() : FunctionPass(ID) {}
+    SimplifyHalfPowrLibCalls() : FunctionPass(ID) {
+      initializeSimplifyHalfPowrLibCallsPass(*PassRegistry::getPassRegistry());
+    }
 
     bool runOnFunction(Function &F);
 
diff --git a/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp b/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp
index 68299525d89..5b22b23b6b0 100644
--- a/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp
+++ b/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp
@@ -1374,7 +1374,9 @@ namespace {
     bool Modified;  // This is only used by doInitialization.
   public:
     static char ID; // Pass identification
-    SimplifyLibCalls() : FunctionPass(ID), StrCpy(false), StrCpyChk(true) {}
+    SimplifyLibCalls() : FunctionPass(ID), StrCpy(false), StrCpyChk(true) {
+      initializeSimplifyLibCallsPass(*PassRegistry::getPassRegistry());
+    }
     void InitOptimizations();
     bool runOnFunction(Function &F);
 
diff --git a/llvm/lib/Transforms/Scalar/Sink.cpp b/llvm/lib/Transforms/Scalar/Sink.cpp
index 0071428354e..7306ee5e2e4 100644
--- a/llvm/lib/Transforms/Scalar/Sink.cpp
+++ b/llvm/lib/Transforms/Scalar/Sink.cpp
@@ -35,7 +35,9 @@ namespace {
 
   public:
     static char ID; // Pass identification
-    Sinking() : FunctionPass(ID) {}
+    Sinking() : FunctionPass(ID) {
+      initializeSinkingPass(*PassRegistry::getPassRegistry());
+    }
     
     virtual bool runOnFunction(Function &F);
     
diff --git a/llvm/lib/Transforms/Scalar/TailDuplication.cpp b/llvm/lib/Transforms/Scalar/TailDuplication.cpp
index ea1d722adda..e954c15cb78 100644
--- a/llvm/lib/Transforms/Scalar/TailDuplication.cpp
+++ b/llvm/lib/Transforms/Scalar/TailDuplication.cpp
@@ -49,7 +49,9 @@ namespace {
     bool runOnFunction(Function &F);
   public:
     static char ID; // Pass identification, replacement for typeid
-    TailDup() : FunctionPass(ID) {}
+    TailDup() : FunctionPass(ID) {
+      initializeTailDupPass(*PassRegistry::getPassRegistry());
+    }
 
   private:
     inline bool shouldEliminateUnconditionalBranch(TerminatorInst *, unsigned);
diff --git a/llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp b/llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp
index b85c2d1b615..f41852a903e 100644
--- a/llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp
@@ -72,7 +72,9 @@ STATISTIC(NumAccumAdded, "Number of accumulators introduced");
 namespace {
   struct TailCallElim : public FunctionPass {
     static char ID; // Pass identification, replacement for typeid
-    TailCallElim() : FunctionPass(ID) {}
+    TailCallElim() : FunctionPass(ID) {
+      initializeTailCallElimPass(*PassRegistry::getPassRegistry());
+    }
 
     virtual bool runOnFunction(Function &F);