diff --git a/include/llvm/InitializePasses.h b/include/llvm/InitializePasses.h
index 780ab8e..c91fbf8 100644
--- a/include/llvm/InitializePasses.h
+++ b/include/llvm/InitializePasses.h
@@ -219,7 +219,6 @@ void initializeStripNonDebugSymbolsPass(PassRegistry&);
 void initializeStripSymbolsPass(PassRegistry&);
 void initializeStrongPHIEliminationPass(PassRegistry&);
 void initializeTailCallElimPass(PassRegistry&);
-void initializeTailDupPass(PassRegistry&);
 void initializeTargetDataPass(PassRegistry&);
 void initializeTargetLibraryInfoPass(PassRegistry&);
 void initializeTwoAddressInstructionPassPass(PassRegistry&);
diff --git a/include/llvm/LinkAllPasses.h b/include/llvm/LinkAllPasses.h
index 058bd63..cfe33a0 100644
--- a/include/llvm/LinkAllPasses.h
+++ b/include/llvm/LinkAllPasses.h
@@ -127,7 +127,6 @@ namespace {
       (void) llvm::createStripDeadDebugInfoPass();
       (void) llvm::createStripDeadPrototypesPass();
       (void) llvm::createTailCallEliminationPass();
-      (void) llvm::createTailDuplicationPass();
       (void) llvm::createJumpThreadingPass();
       (void) llvm::createUnifyFunctionExitNodesPass();
       (void) llvm::createInstCountPass();
diff --git a/include/llvm/Transforms/Scalar.h b/include/llvm/Transforms/Scalar.h
index 2187d4e..b1536f9 100644
--- a/include/llvm/Transforms/Scalar.h
+++ b/include/llvm/Transforms/Scalar.h
@@ -176,13 +176,6 @@ FunctionPass *createReassociatePass();
 
 //===----------------------------------------------------------------------===//
 //
-// TailDuplication - Eliminate unconditional branches through controlled code
-// duplication, creating simpler CFG structures.
-//
-FunctionPass *createTailDuplicationPass();
-
-//===----------------------------------------------------------------------===//
-//
 // JumpThreading - Thread control through mult-pred/multi-succ blocks where some
 // preds always go to some succ.
 //
diff --git a/lib/Transforms/Scalar/CMakeLists.txt b/lib/Transforms/Scalar/CMakeLists.txt
index 728f9fb..79bcae5 100644
--- a/lib/Transforms/Scalar/CMakeLists.txt
+++ b/lib/Transforms/Scalar/CMakeLists.txt
@@ -29,7 +29,6 @@ add_llvm_library(LLVMScalarOpts
   SimplifyCFGPass.cpp
   SimplifyLibCalls.cpp
   Sink.cpp
-  TailDuplication.cpp
   TailRecursionElimination.cpp
   )
 
diff --git a/lib/Transforms/Scalar/Scalar.cpp b/lib/Transforms/Scalar/Scalar.cpp
index c4ee3f6..f6918de 100644
--- a/lib/Transforms/Scalar/Scalar.cpp
+++ b/lib/Transforms/Scalar/Scalar.cpp
@@ -63,7 +63,6 @@ void llvm::initializeScalarOpts(PassRegistry &Registry) {
   initializeCFGSimplifyPassPass(Registry);
   initializeSimplifyLibCallsPass(Registry);
   initializeSinkingPass(Registry);
-  initializeTailDupPass(Registry);
   initializeTailCallElimPass(Registry);
 }
 
diff --git a/lib/Transforms/Scalar/TailDuplication.cpp b/lib/Transforms/Scalar/TailDuplication.cpp
deleted file mode 100644
index 9dd83c0..0000000
--- a/lib/Transforms/Scalar/TailDuplication.cpp
+++ /dev/null
@@ -1,373 +0,0 @@
-//===- TailDuplication.cpp - Simplify CFG through tail duplication --------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This pass performs a limited form of tail duplication, intended to simplify
-// CFGs by removing some unconditional branches.  This pass is necessary to
-// straighten out loops created by the C front-end, but also is capable of
-// making other code nicer.  After this pass is run, the CFG simplify pass
-// should be run to clean up the mess.
-//
-// This pass could be enhanced in the future to use profile information to be
-// more aggressive.
-//
-//===----------------------------------------------------------------------===//
-
-#define DEBUG_TYPE "tailduplicate"
-#include "llvm/Transforms/Scalar.h"
-#include "llvm/Constant.h"
-#include "llvm/Function.h"
-#include "llvm/Instructions.h"
-#include "llvm/IntrinsicInst.h"
-#include "llvm/Pass.h"
-#include "llvm/Type.h"
-#include "llvm/ADT/Statistic.h"
-#include "llvm/ADT/SmallPtrSet.h"
-#include "llvm/Analysis/InstructionSimplify.h"
-#include "llvm/Support/CFG.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Debug.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/Transforms/Utils/Local.h"
-#include <map>
-using namespace llvm;
-
-STATISTIC(NumEliminated, "Number of unconditional branches eliminated");
-
-static cl::opt<unsigned>
-TailDupThreshold("taildup-threshold",
-                 cl::desc("Max block size to tail duplicate"),
-                 cl::init(1), cl::Hidden);
-
-namespace {
-  class TailDup : public FunctionPass {
-    bool runOnFunction(Function &F);
-  public:
-    static char ID; // Pass identification, replacement for typeid
-    TailDup() : FunctionPass(ID) {
-      initializeTailDupPass(*PassRegistry::getPassRegistry());
-    }
-
-  private:
-    inline bool shouldEliminateUnconditionalBranch(TerminatorInst *, unsigned);
-    inline void eliminateUnconditionalBranch(BranchInst *BI);
-    SmallPtrSet<BasicBlock*, 4> CycleDetector;
-  };
-}
-
-char TailDup::ID = 0;
-INITIALIZE_PASS(TailDup, "tailduplicate", "Tail Duplication", false, false)
-
-// Public interface to the Tail Duplication pass
-FunctionPass *llvm::createTailDuplicationPass() { return new TailDup(); }
-
-/// runOnFunction - Top level algorithm - Loop over each unconditional branch in
-/// the function, eliminating it if it looks attractive enough.  CycleDetector
-/// prevents infinite loops by checking that we aren't redirecting a branch to
-/// a place it already pointed to earlier; see PR 2323.
-bool TailDup::runOnFunction(Function &F) {
-  bool Changed = false;
-  CycleDetector.clear();
-  for (Function::iterator I = F.begin(), E = F.end(); I != E; ) {
-    if (shouldEliminateUnconditionalBranch(I->getTerminator(),
-                                           TailDupThreshold)) {
-      eliminateUnconditionalBranch(cast<BranchInst>(I->getTerminator()));
-      Changed = true;
-    } else {
-      ++I;
-      CycleDetector.clear();
-    }
-  }
-  return Changed;
-}
-
-/// shouldEliminateUnconditionalBranch - Return true if this branch looks
-/// attractive to eliminate.  We eliminate the branch if the destination basic
-/// block has <= 5 instructions in it, not counting PHI nodes.  In practice,
-/// since one of these is a terminator instruction, this means that we will add
-/// up to 4 instructions to the new block.
-///
-/// We don't count PHI nodes in the count since they will be removed when the
-/// contents of the block are copied over.
-///
-bool TailDup::shouldEliminateUnconditionalBranch(TerminatorInst *TI,
-                                                 unsigned Threshold) {
-  BranchInst *BI = dyn_cast<BranchInst>(TI);
-  if (!BI || !BI->isUnconditional()) return false;  // Not an uncond branch!
-
-  BasicBlock *Dest = BI->getSuccessor(0);
-  if (Dest == BI->getParent()) return false;        // Do not loop infinitely!
-
-  // Do not inline a block if we will just get another branch to the same block!
-  TerminatorInst *DTI = Dest->getTerminator();
-  if (BranchInst *DBI = dyn_cast<BranchInst>(DTI))
-    if (DBI->isUnconditional() && DBI->getSuccessor(0) == Dest)
-      return false;                                 // Do not loop infinitely!
-
-  // FIXME: DemoteRegToStack cannot yet demote invoke instructions to the stack,
-  // because doing so would require breaking critical edges.  This should be
-  // fixed eventually.
-  if (!DTI->use_empty())
-    return false;
-
-  // Do not bother with blocks with only a single predecessor: simplify
-  // CFG will fold these two blocks together!
-  pred_iterator PI = pred_begin(Dest), PE = pred_end(Dest);
-  ++PI;
-  if (PI == PE) return false;  // Exactly one predecessor!
-
-  BasicBlock::iterator I = Dest->getFirstNonPHI();
-
-  for (unsigned Size = 0; I != Dest->end(); ++I) {
-    if (Size == Threshold) return false;  // The block is too large.
-    
-    // Don't tail duplicate call instructions.  They are very large compared to
-    // other instructions.
-    if (isa<CallInst>(I) || isa<InvokeInst>(I)) return false;
-
-    // Also alloca and malloc.
-    if (isa<AllocaInst>(I)) return false;
-
-    // Some vector instructions can expand into a number of instructions.
-    if (isa<ShuffleVectorInst>(I) || isa<ExtractElementInst>(I) ||
-        isa<InsertElementInst>(I)) return false;
-    
-    // Only count instructions that are not debugger intrinsics.
-    if (!isa<DbgInfoIntrinsic>(I)) ++Size;
-  }
-
-  // Do not tail duplicate a block that has thousands of successors into a block
-  // with a single successor if the block has many other predecessors.  This can
-  // cause an N^2 explosion in CFG edges (and PHI node entries), as seen in
-  // cases that have a large number of indirect gotos.
-  unsigned NumSuccs = DTI->getNumSuccessors();
-  if (NumSuccs > 8) {
-    unsigned TooMany = 128;
-    if (NumSuccs >= TooMany) return false;
-    TooMany = TooMany/NumSuccs;
-    for (; PI != PE; ++PI)
-      if (TooMany-- == 0) return false;
-  }
-  
-  // If this unconditional branch is a fall-through, be careful about
-  // tail duplicating it.  In particular, we don't want to taildup it if the
-  // original block will still be there after taildup is completed: doing so
-  // would eliminate the fall-through, requiring unconditional branches.
-  Function::iterator DestI = Dest;
-  if (&*--DestI == BI->getParent()) {
-    // The uncond branch is a fall-through.  Tail duplication of the block is
-    // will eliminate the fall-through-ness and end up cloning the terminator
-    // at the end of the Dest block.  Since the original Dest block will
-    // continue to exist, this means that one or the other will not be able to
-    // fall through.  One typical example that this helps with is code like:
-    // if (a)
-    //   foo();
-    // if (b)
-    //   foo();
-    // Cloning the 'if b' block into the end of the first foo block is messy.
-    
-    // The messy case is when the fall-through block falls through to other
-    // blocks.  This is what we would be preventing if we cloned the block.
-    DestI = Dest;
-    if (++DestI != Dest->getParent()->end()) {
-      BasicBlock *DestSucc = DestI;
-      // If any of Dest's successors are fall-throughs, don't do this xform.
-      for (succ_iterator SI = succ_begin(Dest), SE = succ_end(Dest);
-           SI != SE; ++SI)
-        if (*SI == DestSucc)
-          return false;
-    }
-  }
-
-  // Finally, check that we haven't redirected to this target block earlier;
-  // there are cases where we loop forever if we don't check this (PR 2323).
-  if (!CycleDetector.insert(Dest))
-    return false;
-
-  return true;
-}
-
-/// FindObviousSharedDomOf - We know there is a branch from SrcBlock to
-/// DestBlock, and that SrcBlock is not the only predecessor of DstBlock.  If we
-/// can find a predecessor of SrcBlock that is a dominator of both SrcBlock and
-/// DstBlock, return it.
-static BasicBlock *FindObviousSharedDomOf(BasicBlock *SrcBlock,
-                                          BasicBlock *DstBlock) {
-  // SrcBlock must have a single predecessor.
-  pred_iterator PI = pred_begin(SrcBlock), PE = pred_end(SrcBlock);
-  if (PI == PE || ++PI != PE) return 0;
-
-  BasicBlock *SrcPred = *pred_begin(SrcBlock);
-
-  // Look at the predecessors of DstBlock.  One of them will be SrcBlock.  If
-  // there is only one other pred, get it, otherwise we can't handle it.
-  PI = pred_begin(DstBlock); PE = pred_end(DstBlock);
-  BasicBlock *DstOtherPred = 0;
-  BasicBlock *P = *PI;
-  if (P == SrcBlock) {
-    if (++PI == PE) return 0;
-    DstOtherPred = *PI;
-    if (++PI != PE) return 0;
-  } else {
-    DstOtherPred = P;
-    if (++PI == PE || *PI != SrcBlock || ++PI != PE) return 0;
-  }
-
-  // We can handle two situations here: "if then" and "if then else" blocks.  An
-  // 'if then' situation is just where DstOtherPred == SrcPred.
-  if (DstOtherPred == SrcPred)
-    return SrcPred;
-
-  // Check to see if we have an "if then else" situation, which means that
-  // DstOtherPred will have a single predecessor and it will be SrcPred.
-  PI = pred_begin(DstOtherPred); PE = pred_end(DstOtherPred);
-  if (PI != PE && *PI == SrcPred) {
-    if (++PI != PE) return 0;  // Not a single pred.
-    return SrcPred;  // Otherwise, it's an "if then" situation.  Return the if.
-  }
-
-  // Otherwise, this is something we can't handle.
-  return 0;
-}
-
-
-/// eliminateUnconditionalBranch - Clone the instructions from the destination
-/// block into the source block, eliminating the specified unconditional branch.
-/// If the destination block defines values used by successors of the dest
-/// block, we may need to insert PHI nodes.
-///
-void TailDup::eliminateUnconditionalBranch(BranchInst *Branch) {
-  BasicBlock *SourceBlock = Branch->getParent();
-  BasicBlock *DestBlock = Branch->getSuccessor(0);
-  assert(SourceBlock != DestBlock && "Our predicate is broken!");
-
-  DEBUG(dbgs() << "TailDuplication[" << SourceBlock->getParent()->getName()
-        << "]: Eliminating branch: " << *Branch);
-
-  // See if we can avoid duplicating code by moving it up to a dominator of both
-  // blocks.
-  if (BasicBlock *DomBlock = FindObviousSharedDomOf(SourceBlock, DestBlock)) {
-    DEBUG(dbgs() << "Found shared dominator: " << DomBlock->getName() << "\n");
-
-    // If there are non-phi instructions in DestBlock that have no operands
-    // defined in DestBlock, and if the instruction has no side effects, we can
-    // move the instruction to DomBlock instead of duplicating it.
-    BasicBlock::iterator BBI = DestBlock->getFirstNonPHI();
-    while (!isa<TerminatorInst>(BBI)) {
-      Instruction *I = BBI++;
-
-      bool CanHoist = I->isSafeToSpeculativelyExecute() &&
-                      !I->mayReadFromMemory();
-      if (CanHoist) {
-        for (unsigned op = 0, e = I->getNumOperands(); op != e; ++op)
-          if (Instruction *OpI = dyn_cast<Instruction>(I->getOperand(op)))
-            if (OpI->getParent() == DestBlock ||
-                (isa<InvokeInst>(OpI) && OpI->getParent() == DomBlock)) {
-              CanHoist = false;
-              break;
-            }
-        if (CanHoist) {
-          // Remove from DestBlock, move right before the term in DomBlock.
-          DestBlock->getInstList().remove(I);
-          DomBlock->getInstList().insert(DomBlock->getTerminator(), I);
-          DEBUG(dbgs() << "Hoisted: " << *I);
-        }
-      }
-    }
-  }
-
-  // Tail duplication can not update SSA properties correctly if the values
-  // defined in the duplicated tail are used outside of the tail itself.  For
-  // this reason, we spill all values that are used outside of the tail to the
-  // stack.
-  for (BasicBlock::iterator I = DestBlock->begin(); I != DestBlock->end(); ++I)
-    if (I->isUsedOutsideOfBlock(DestBlock)) {
-      // We found a use outside of the tail.  Create a new stack slot to
-      // break this inter-block usage pattern.
-      DemoteRegToStack(*I);
-    }
-
-  // We are going to have to map operands from the original block B to the new
-  // copy of the block B'.  If there are PHI nodes in the DestBlock, these PHI
-  // nodes also define part of this mapping.  Loop over these PHI nodes, adding
-  // them to our mapping.
-  //
-  std::map<Value*, Value*> ValueMapping;
-
-  BasicBlock::iterator BI = DestBlock->begin();
-  bool HadPHINodes = isa<PHINode>(BI);
-  for (; PHINode *PN = dyn_cast<PHINode>(BI); ++BI)
-    ValueMapping[PN] = PN->getIncomingValueForBlock(SourceBlock);
-
-  // Clone the non-phi instructions of the dest block into the source block,
-  // keeping track of the mapping...
-  //
-  for (; BI != DestBlock->end(); ++BI) {
-    Instruction *New = BI->clone();
-    New->setName(BI->getName());
-    SourceBlock->getInstList().push_back(New);
-    ValueMapping[BI] = New;
-  }
-
-  // Now that we have built the mapping information and cloned all of the
-  // instructions (giving us a new terminator, among other things), walk the new
-  // instructions, rewriting references of old instructions to use new
-  // instructions.
-  //
-  BI = Branch; ++BI;  // Get an iterator to the first new instruction
-  for (; BI != SourceBlock->end(); ++BI)
-    for (unsigned i = 0, e = BI->getNumOperands(); i != e; ++i) {
-      std::map<Value*, Value*>::const_iterator I =
-        ValueMapping.find(BI->getOperand(i));
-      if (I != ValueMapping.end())
-        BI->setOperand(i, I->second);
-    }
-
-  // Next we check to see if any of the successors of DestBlock had PHI nodes.
-  // If so, we need to add entries to the PHI nodes for SourceBlock now.
-  for (succ_iterator SI = succ_begin(DestBlock), SE = succ_end(DestBlock);
-       SI != SE; ++SI) {
-    BasicBlock *Succ = *SI;
-    for (BasicBlock::iterator PNI = Succ->begin(); isa<PHINode>(PNI); ++PNI) {
-      PHINode *PN = cast<PHINode>(PNI);
-      // Ok, we have a PHI node.  Figure out what the incoming value was for the
-      // DestBlock.
-      Value *IV = PN->getIncomingValueForBlock(DestBlock);
-
-      // Remap the value if necessary...
-      std::map<Value*, Value*>::const_iterator I = ValueMapping.find(IV);
-      if (I != ValueMapping.end())
-        IV = I->second;
-      PN->addIncoming(IV, SourceBlock);
-    }
-  }
-
-  // Next, remove the old branch instruction, and any PHI node entries that we
-  // had.
-  BI = Branch; ++BI;  // Get an iterator to the first new instruction
-  DestBlock->removePredecessor(SourceBlock); // Remove entries in PHI nodes...
-  SourceBlock->getInstList().erase(Branch);  // Destroy the uncond branch...
-
-  // Final step: now that we have finished everything up, walk the cloned
-  // instructions one last time, constant propagating and DCE'ing them, because
-  // they may not be needed anymore.
-  //
-  if (HadPHINodes) {
-    while (BI != SourceBlock->end()) {
-      Instruction *Inst = BI++;
-      if (isInstructionTriviallyDead(Inst))
-        Inst->eraseFromParent();
-      else if (Value *V = SimplifyInstruction(Inst)) {
-        Inst->replaceAllUsesWith(V);
-        Inst->eraseFromParent();
-      }
-    }
-  }
-
-  ++NumEliminated;  // We just killed a branch!
-}
diff --git a/test/Transforms/LoopDeletion/2008-05-06-Phi.ll b/test/Transforms/LoopDeletion/2008-05-06-Phi.ll
index 4fc6378..ff6a30d 100644
--- a/test/Transforms/LoopDeletion/2008-05-06-Phi.ll
+++ b/test/Transforms/LoopDeletion/2008-05-06-Phi.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -inline -tailduplicate -instcombine -jump-threading -licm -loop-unswitch -instcombine -indvars -loop-deletion -gvn -simplifycfg -verify -disable-output
+; RUN: opt < %s -inline -instcombine -jump-threading -licm -loop-unswitch -instcombine -indvars -loop-deletion -gvn -simplifycfg -verify -disable-output
 
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
 target triple = "i386-apple-darwin9"
diff --git a/test/Transforms/LoopSimplify/2003-08-15-PreheadersFail.ll b/test/Transforms/LoopSimplify/2003-08-15-PreheadersFail.ll
index 11be694..73f0813 100644
--- a/test/Transforms/LoopSimplify/2003-08-15-PreheadersFail.ll
+++ b/test/Transforms/LoopSimplify/2003-08-15-PreheadersFail.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -tailduplicate -instcombine -simplifycfg -licm -disable-output
+; RUN: opt < %s -instcombine -simplifycfg -licm -disable-output
 target datalayout = "e-p:32:32"
 @yy_base = external global [787 x i16]		; <[787 x i16]*> [#uses=1]
 @yy_state_ptr = external global i32*		; <i32**> [#uses=3]
diff --git a/test/Transforms/TailDup/2003-06-24-Simpleloop.ll b/test/Transforms/TailDup/2003-06-24-Simpleloop.ll
deleted file mode 100644
index d7e45af..0000000
--- a/test/Transforms/TailDup/2003-06-24-Simpleloop.ll
+++ /dev/null
@@ -1,15 +0,0 @@
-; RUN: opt < %s -tailduplicate -disable-output
-
-define void @motion_result7() {
-entry:
-	br label %endif
-endif:		; preds = %no_exit, %entry
-	%i.1 = phi i32 [ %inc, %no_exit ], [ 0, %entry ]		; <i32> [#uses=1]
-	%inc = add i32 %i.1, 1		; <i32> [#uses=1]
-	br i1 false, label %no_exit, label %UnifiedExitNode
-no_exit:		; preds = %endif
-	br i1 false, label %UnifiedExitNode, label %endif
-UnifiedExitNode:		; preds = %no_exit, %endif
-	ret void
-}
-
diff --git a/test/Transforms/TailDup/2003-07-22-InfiniteLoop.ll b/test/Transforms/TailDup/2003-07-22-InfiniteLoop.ll
deleted file mode 100644
index 90f4990..0000000
--- a/test/Transforms/TailDup/2003-07-22-InfiniteLoop.ll
+++ /dev/null
@@ -1,11 +0,0 @@
-; RUN: opt < %s -tailduplicate -disable-output
-
-define i32 @sum() {
-entry:
-	br label %loopentry
-loopentry:		; preds = %loopentry, %entry
-	%i.0 = phi i32 [ 1, %entry ], [ %tmp.3, %loopentry ]		; <i32> [#uses=1]
-	%tmp.3 = add i32 %i.0, 1		; <i32> [#uses=1]
-	br label %loopentry
-}
-
diff --git a/test/Transforms/TailDup/2003-08-23-InvalidatedPointers.ll b/test/Transforms/TailDup/2003-08-23-InvalidatedPointers.ll
deleted file mode 100644
index efe9eae..0000000
--- a/test/Transforms/TailDup/2003-08-23-InvalidatedPointers.ll
+++ /dev/null
@@ -1,29 +0,0 @@
-; RUN: opt < %s -tailduplicate -disable-output
-
-define i32 @sell_haggle() {
-entry:
-	br i1 false, label %then.5, label %UnifiedExitNode
-then.5:		; preds = %entry
-	br i1 false, label %loopentry.1.preheader, label %else.1
-else.1:		; preds = %then.5
-	br label %loopentry.1.preheader
-loopentry.1.preheader:		; preds = %else.1, %then.5
-	%final_ask.0 = phi i32 [ 0, %else.1 ], [ 0, %then.5 ]		; <i32> [#uses=2]
-	br label %loopentry.1
-loopentry.1:		; preds = %endif.17, %loopentry.1.preheader
-	switch i32 0, label %UnifiedExitNode [
-		 i32 2, label %UnifiedExitNode
-		 i32 1, label %endif.16
-	]
-endif.16:		; preds = %loopentry.1
-	br i1 false, label %then.17, label %UnifiedExitNode
-then.17:		; preds = %endif.16
-	br i1 false, label %then.18, label %endif.17
-then.18:		; preds = %then.17
-	br i1 false, label %endif.17, label %UnifiedExitNode
-endif.17:		; preds = %then.18, %then.17
-	%cur_ask.3 = phi i32 [ %final_ask.0, %then.17 ], [ %final_ask.0, %then.18 ]		; <i32> [#uses=0]
-	br i1 false, label %loopentry.1, label %UnifiedExitNode
-UnifiedExitNode:		; preds = %endif.17, %then.18, %endif.16, %loopentry.1, %loopentry.1, %entry
-	ret i32 0
-}
diff --git a/test/Transforms/TailDup/2003-08-31-UnreachableBlocks.ll b/test/Transforms/TailDup/2003-08-31-UnreachableBlocks.ll
deleted file mode 100644
index dc64923..0000000
--- a/test/Transforms/TailDup/2003-08-31-UnreachableBlocks.ll
+++ /dev/null
@@ -1,17 +0,0 @@
-; RUN: opt < %s -tailduplicate -disable-output
-
-define i32 @foo() {
-entry:
-	br label %return.i
-after_ret.i:		; No predecessors!
-	br label %return.i
-return.i:		; preds = %after_ret.i, %entry
-	%tmp.3 = ptrtoint i32* null to i32		; <i32> [#uses=1]
-	br label %return.i1
-after_ret.i1:		; No predecessors!
-	br label %return.i1
-return.i1:		; preds = %after_ret.i1, %return.i
-	%tmp.8 = sub i32 %tmp.3, 0		; <i32> [#uses=0]
-	ret i32 0
-}
-
diff --git a/test/Transforms/TailDup/2004-04-01-DemoteRegToStack.ll b/test/Transforms/TailDup/2004-04-01-DemoteRegToStack.ll
deleted file mode 100644
index c1e5f73..0000000
--- a/test/Transforms/TailDup/2004-04-01-DemoteRegToStack.ll
+++ /dev/null
@@ -1,20 +0,0 @@
-; RUN: opt < %s -tailduplicate -disable-output
-
-define void @interpret() {
-entry:
-	br label %retry
-retry:		; preds = %endif.4, %entry
-	%tmp.8 = call i32 @interp( )		; <i32> [#uses=3]
-	switch i32 0, label %endif.4 [
-		 i32 -25, label %return
-		 i32 -16, label %return
-	]
-endif.4:		; preds = %retry
-	br i1 false, label %return, label %retry
-return:		; preds = %endif.4, %retry, %retry
-	%result.0 = phi i32 [ %tmp.8, %retry ], [ %tmp.8, %retry ], [ %tmp.8, %endif.4 ]		; <i32> [#uses=0]
-	ret void
-}
-
-declare i32 @interp()
-
diff --git a/test/Transforms/TailDup/2008-05-13-InfiniteLoop.ll b/test/Transforms/TailDup/2008-05-13-InfiniteLoop.ll
deleted file mode 100644
index 3e4f0b7..0000000
--- a/test/Transforms/TailDup/2008-05-13-InfiniteLoop.ll
+++ /dev/null
@@ -1,26 +0,0 @@
-; RUN: opt < %s -tailduplicate | llc
-; PR2323
-
-define i32 @func_27(i32 %p_28) nounwind  {
-entry:
-  %tmp125 = trunc i32 %p_28 to i8   ; <i8> [#uses=1]
-  %tmp5.i = icmp eq i8 %tmp125, 0   ; <i1> [#uses=1]
-  br i1 %tmp5.i, label %bb8.i, label %bb.i
-
-bb.i:   ; preds = %entry
-  br label %bb39.i
-
-bb8.i:    ; preds = %entry
-  br label %bb11.i
-
-bb11.i:   ; preds = %bb39.i, %bb8.i
-  %tmp126 = trunc i32 %p_28 to i8   ; <i8> [#uses=1]
-  br label %bb39.i
-
-bb39.i:   ; preds = %bb11.i, %bb.i
-  %tmp127 = trunc i32 %p_28 to i8   ; <i8> [#uses=1]
-  br label %bb11.i
-
-func_29.exit:   ; No predecessors!
-  ret i32 undef
-}
diff --git a/test/Transforms/TailDup/2009-07-31-phicrash.ll b/test/Transforms/TailDup/2009-07-31-phicrash.ll
deleted file mode 100644
index ad1a040..0000000
--- a/test/Transforms/TailDup/2009-07-31-phicrash.ll
+++ /dev/null
@@ -1,14 +0,0 @@
-; RUN: opt < %s -tailduplicate -disable-output
-; PR4662
-
-define void @a() {
-BB:
-	br label %BB6
-
-BB6:
-	%tmp9 = phi i64 [ 0, %BB ], [ 5, %BB34 ]
-	br label %BB34
-
-BB34:
-	br label %BB6
-}
diff --git a/test/Transforms/TailDup/MergeTest.ll b/test/Transforms/TailDup/MergeTest.ll
deleted file mode 100644
index 2224283..0000000
--- a/test/Transforms/TailDup/MergeTest.ll
+++ /dev/null
@@ -1,27 +0,0 @@
-; RUN: opt < %s -tailduplicate -taildup-threshold=2 -S | grep add | not grep uses=1
-
-define i32 @test1(i1 %C, i32 %A, i32* %P) {
-entry:
-	br i1 %C, label %L1, label %L2
-L1:		; preds = %entry
-	store i32 1, i32* %P
-	br label %L2
-L2:		; preds = %L1, %entry
-	%X = add i32 %A, 17		; <i32> [#uses=1]
-	ret i32 %X
-}
-
-define i32 @test2(i1 %C, i32 %A, i32* %P) {
-entry:
-	br i1 %C, label %L1, label %L2
-L1:		; preds = %entry
-	store i32 1, i32* %P
-	br label %L3
-L2:		; preds = %entry
-	store i32 7, i32* %P
-	br label %L3
-L3:		; preds = %L2, %L1
-	%X = add i32 %A, 17		; <i32> [#uses=1]
-	ret i32 %X
-}
-
diff --git a/test/Transforms/TailDup/PHIUpdateTest.ll b/test/Transforms/TailDup/PHIUpdateTest.ll
deleted file mode 100644
index 38d8ebf..0000000
--- a/test/Transforms/TailDup/PHIUpdateTest.ll
+++ /dev/null
@@ -1,16 +0,0 @@
-; This test checks to make sure phi nodes are updated properly
-;
-; RUN: opt < %s -tailduplicate -disable-output
-
-define i32 @test(i1 %c, i32 %X, i32 %Y) {
-	br label %L
-L:		; preds = %F, %0
-	%A = add i32 %X, %Y		; <i32> [#uses=1]
-	br i1 %c, label %T, label %F
-F:		; preds = %L
-	br i1 %c, label %L, label %T
-T:		; preds = %F, %L
-	%V = phi i32 [ %A, %L ], [ 0, %F ]		; <i32> [#uses=1]
-	ret i32 %V
-}
-
diff --git a/test/Transforms/TailDup/X86/if-tail-dup.ll b/test/Transforms/TailDup/X86/if-tail-dup.ll
deleted file mode 100644
index 2e4f5be..0000000
--- a/test/Transforms/TailDup/X86/if-tail-dup.ll
+++ /dev/null
@@ -1,49 +0,0 @@
-; RUN: opt < %s -tailduplicate | \
-; RUN:   llc -march=x86 -o %t
-; RUN: grep {\\\<je\\\>} %t
-; RUN: not grep jmp %t
-; END.
-; This should have no unconditional jumps in it.  The C source is:
-
-;void foo(int c, int* P) {
-;  if (c & 1)  P[0] = 1;
-;  if (c & 2)  P[1] = 1;
-;  if (c & 4)  P[2] = 1;
-;  if (c & 8)  P[3] = 1;
-;}
-
-define void @foo(i32 %c, i32* %P) {
-entry:
-	%tmp1 = and i32 %c, 1		; <i32> [#uses=1]
-	%tmp1.upgrd.1 = icmp eq i32 %tmp1, 0		; <i1> [#uses=1]
-	br i1 %tmp1.upgrd.1, label %cond_next, label %cond_true
-cond_true:		; preds = %entry
-	store i32 1, i32* %P
-	br label %cond_next
-cond_next:		; preds = %cond_true, %entry
-	%tmp5 = and i32 %c, 2		; <i32> [#uses=1]
-	%tmp5.upgrd.2 = icmp eq i32 %tmp5, 0		; <i1> [#uses=1]
-	br i1 %tmp5.upgrd.2, label %cond_next10, label %cond_true6
-cond_true6:		; preds = %cond_next
-	%tmp8 = getelementptr i32* %P, i32 1		; <i32*> [#uses=1]
-	store i32 1, i32* %tmp8
-	br label %cond_next10
-cond_next10:		; preds = %cond_true6, %cond_next
-	%tmp13 = and i32 %c, 4		; <i32> [#uses=1]
-	%tmp13.upgrd.3 = icmp eq i32 %tmp13, 0		; <i1> [#uses=1]
-	br i1 %tmp13.upgrd.3, label %cond_next18, label %cond_true14
-cond_true14:		; preds = %cond_next10
-	%tmp16 = getelementptr i32* %P, i32 2		; <i32*> [#uses=1]
-	store i32 1, i32* %tmp16
-	br label %cond_next18
-cond_next18:		; preds = %cond_true14, %cond_next10
-	%tmp21 = and i32 %c, 8		; <i32> [#uses=1]
-	%tmp21.upgrd.4 = icmp eq i32 %tmp21, 0		; <i1> [#uses=1]
-	br i1 %tmp21.upgrd.4, label %return, label %cond_true22
-cond_true22:		; preds = %cond_next18
-	%tmp24 = getelementptr i32* %P, i32 3		; <i32*> [#uses=1]
-	store i32 1, i32* %tmp24
-	ret void
-return:		; preds = %cond_next18
-	ret void
-}
diff --git a/test/Transforms/TailDup/basictest.ll b/test/Transforms/TailDup/basictest.ll
deleted file mode 100644
index 94f5d87..0000000
--- a/test/Transforms/TailDup/basictest.ll
+++ /dev/null
@@ -1,20 +0,0 @@
-; RUN: opt < %s -tailduplicate -disable-output
-
-declare void @__main()
-
-define i32 @main() {
-entry:
-	call void @__main( )
-	br label %loopentry
-loopentry:		; preds = %no_exit, %entry
-	%i.0 = phi i32 [ %inc, %no_exit ], [ 0, %entry ]		; <i32> [#uses=3]
-	%tmp.1 = icmp sle i32 %i.0, 99		; <i1> [#uses=1]
-	br i1 %tmp.1, label %no_exit, label %return
-no_exit:		; preds = %loopentry
-	%tmp.51 = call i32 @main( )		; <i32> [#uses=0]
-	%inc = add i32 %i.0, 1		; <i32> [#uses=1]
-	br label %loopentry
-return:		; preds = %loopentry
-	ret i32 %i.0
-}
-
diff --git a/test/Transforms/TailDup/basictest2.ll b/test/Transforms/TailDup/basictest2.ll
deleted file mode 100644
index 81a996a..0000000
--- a/test/Transforms/TailDup/basictest2.ll
+++ /dev/null
@@ -1,15 +0,0 @@
-; RUN: opt < %s -tailduplicate -disable-output
-
-define void @ab() {
-entry:
-	br label %loopentry.5
-loopentry.5:		; preds = %no_exit.5, %entry
-	%poscnt.1 = phi i64 [ 0, %entry ], [ %tmp.289, %no_exit.5 ]		; <i64> [#uses=1]
-	%tmp.289 = ashr i64 %poscnt.1, 1		; <i64> [#uses=1]
-	br i1 false, label %no_exit.5, label %loopexit.5
-no_exit.5:		; preds = %loopentry.5
-	br label %loopentry.5
-loopexit.5:		; preds = %loopentry.5
-	ret void
-}
-
