Added debug message for ObjCARC when we zap an objc_autoreleaseReturnValue/objc_retainAutoreleasedValue pair.
llvm-svn: 171628
diff --git a/llvm/lib/Transforms/Scalar/ObjCARC.cpp b/llvm/lib/Transforms/Scalar/ObjCARC.cpp
index 1e9b08e..de09713 100644
--- a/llvm/lib/Transforms/Scalar/ObjCARC.cpp
+++ b/llvm/lib/Transforms/Scalar/ObjCARC.cpp
@@ -2247,6 +2247,11 @@
GetObjCArg(I) == Arg) {
Changed = true;
++NumPeeps;
+
+ DEBUG(dbgs() << "ObjCARCOpt::OptimizeRetainRVCall: Erasing " << *I << "\n"
+ << " Erasing " << *RetainRV
+ << "\n");
+
EraseInstruction(I);
EraseInstruction(RetainRV);
return true;