Revert "Move function to obtain branch weights into the BranchInst class. NFC."

This reverts commit r223784 and copies the 'ExtractBranchMetadata' to CodeGenPrepare.

llvm-svn: 223795

1 files changed, 0 insertions, 20 deletions

diff --git a/llvm/lib/IR/Instructions.cpp b/llvm/lib/IR/Instructions.cpp
index 5ea45357864..f4c6a289b80 100644
--- a/llvm/lib/IR/Instructions.cpp
+++ b/llvm/lib/IR/Instructions.cpp
@@ -805,26 +805,6 @@ void BranchInst::swapSuccessors() {
               MDNode::get(ProfileData->getContext(), Ops));
 }
 
-bool BranchInst::getBranchWeights(uint64_t &TrueWeight,
-                                  uint64_t &FalseWeight) const {
-  if (isUnconditional())
-    return false;
-
-  auto *MD = getMetadata(LLVMContext::MD_prof);
-  if (!MD || MD->getNumOperands() != 3)
-    return false;
-
-  auto *TrueCI = dyn_cast<ConstantInt>(MD->getOperand(1));
-  auto *FalseCI = dyn_cast<ConstantInt>(MD->getOperand(2));
-  if (!TrueCI || !FalseCI)
-    return false;
-
-  TrueWeight = TrueCI->getValue().getZExtValue();
-  FalseWeight = FalseCI->getValue().getZExtValue();
-
-  return true;
-}
-
 BasicBlock *BranchInst::getSuccessorV(unsigned idx) const {
   return getSuccessor(idx);
 }