1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/ObjCARC.cpp b/llvm/lib/Transforms/Scalar/ObjCARC.cpp
index 1ba5a503848..86b99c9eb15 100644
--- a/llvm/lib/Transforms/Scalar/ObjCARC.cpp
+++ b/llvm/lib/Transforms/Scalar/ObjCARC.cpp
@@ -2468,6 +2468,8 @@ void ObjCARCOpt::OptimizeIndividualCalls(Function &F) {
     if (isNullOrUndef(Arg)) {
       Changed = true;
       ++NumNoops;
+      DEBUG(dbgs() << "ObjCARCOpt::OptimizeIndividualCalls: ARC calls with "
+            " null are no-ops. Erasing: " << *Inst << "\n");
       EraseInstruction(Inst);
       continue;
     }