1 files changed, 1 insertions, 39 deletions
diff --git a/llvm/lib/IR/BasicBlock.cpp b/llvm/lib/IR/BasicBlock.cpp
index 7f34565..95b8602b 100644
--- a/llvm/lib/IR/BasicBlock.cpp
+++ b/llvm/lib/IR/BasicBlock.cpp
@@ -372,11 +372,7 @@ bool BasicBlock::isLegalToHoistInto() const {
   return !Term->isExceptionalTerminator();
 }
 
-BasicBlock *BasicBlock::splitBasicBlock(iterator I, const Twine &BBName,
-                                        bool Before) {
-  if (Before)
-    return splitBasicBlockBefore(I, BBName);
-
+BasicBlock *BasicBlock::splitBasicBlock(iterator I, const Twine &BBName) {
   assert(getTerminator() && "Can't use splitBasicBlock on degenerate BB!");
   assert(I != InstList.end() &&
          "Trying to get me to create degenerate basic block!");
@@ -403,40 +399,6 @@ BasicBlock *BasicBlock::splitBasicBlock(iterator I, const Twine &BBName,
   return New;
 }
 
-BasicBlock *BasicBlock::splitBasicBlockBefore(iterator I, const Twine &BBName) {
-  assert(getTerminator() &&
-         "Can't use splitBasicBlockBefore on degenerate BB!");
-  assert(I != InstList.end() &&
-         "Trying to get me to create degenerate basic block!");
-
-  assert((!isa<PHINode>(*I) || getSinglePredecessor()) &&
-         "cannot split on multi incoming phis");
-
-  BasicBlock *New = BasicBlock::Create(getContext(), BBName, getParent(), this);
-  // Save DebugLoc of split point before invalidating iterator.
-  DebugLoc Loc = I->getDebugLoc();
-  // Move all of the specified instructions from the original basic block into
-  // the new basic block.
-  New->getInstList().splice(New->end(), this->getInstList(), begin(), I);
-
-  // Loop through all of the predecessors of the 'this' block (which will be the
-  // predecessors of the New block), replace the specified successor 'this'
-  // block to point at the New block and update any PHI nodes in 'this' block.
-  // If there were PHI nodes in 'this' block, the PHI nodes are updated
-  // to reflect that the incoming branches will be from the New block and not
-  // from predecessors of the 'this' block.
-  for (BasicBlock *Pred : predecessors(this)) {
-    Instruction *TI = Pred->getTerminator();
-    TI->replaceSuccessorWith(this, New);
-    this->replacePhiUsesWith(Pred, New);
-  }
-  // Add a branch instruction from  "New" to "this" Block.
-  BranchInst *BI = BranchInst::Create(this, New);
-  BI->setDebugLoc(Loc);
-
-  return New;
-}
-
 void BasicBlock::replacePhiUsesWith(BasicBlock *Old, BasicBlock *New) {
   // N.B. This might not be a complete BasicBlock, so don't assume
   // that it ends with a non-phi instruction.