diff --git a/llvm/lib/Transforms/Scalar/LoopIndexSplit.cpp b/llvm/lib/Transforms/Scalar/LoopIndexSplit.cpp
index d6ba64060cbddda7a1a47970cd2afe0ef977d588..c84d75ac1ab118d4c016057920350ec363c84f6f 100644
--- a/llvm/lib/Transforms/Scalar/LoopIndexSplit.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopIndexSplit.cpp
@@ -898,7 +898,7 @@ bool LoopIndexSplit::splitLoop(SplitInfo &SD) {
   BasicBlock *A_SplitCondBlock = SD.SplitCondition->getParent();
   BranchInst *A_BR = cast<BranchInst>(A_SplitCondBlock->getTerminator());
   BasicBlock *A_InactiveBranch = A_BR->getSuccessor(1);
-  BasicBlock *A_ActiveBranch = A_BR->getSuccessor(1);
+  BasicBlock *A_ActiveBranch = A_BR->getSuccessor(0);
   A_BR->setUnconditionalDest(A_BR->getSuccessor(0));
   removeBlocks(A_InactiveBranch, L, A_ActiveBranch);