1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp
index 3483032..310aab4 100644
--- a/llvm/lib/Transforms/Utils/Local.cpp
+++ b/llvm/lib/Transforms/Utils/Local.cpp
@@ -229,6 +229,11 @@ bool llvm::ConstantFoldTerminator(BasicBlock *BB, bool DeleteDeadConditions,
                                             SIDef->getValue().getZExtValue()));
       }
 
+      // Update make.implicit metadata to the newly-created conditional branch.
+      MDNode *MakeImplicitMD = SI->getMetadata(LLVMContext::MD_make_implicit);
+      if (MakeImplicitMD)
+        NewBr->setMetadata(LLVMContext::MD_make_implicit, MakeImplicitMD);
+
       // Delete the old switch.
       SI->eraseFromParent();
       return true;