Added debug statement to ObjCARC when we replace objc_autorelease(x) with objc_releas...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171673 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/ObjCARC.cpp b/lib/Transforms/Scalar/ObjCARC.cpp
index 43f95191c6a457e7f28d9277ca12bcdaa4346a11..3a4e78ba2e474f88a3e36f76103b458572acc7ff 100644 (file)
--- a/lib/Transforms/Scalar/ObjCARC.cpp
+++ b/lib/Transforms/Scalar/ObjCARC.cpp
@@ -2425,6 +2425,14 @@ void ObjCARCOpt::OptimizeIndividualCalls(Function &F) {
                            Call->getArgOperand(0), "", Call);
         NewCall->setMetadata(ImpreciseReleaseMDKind,
                              MDNode::get(C, ArrayRef<Value *>()));
+        
+        DEBUG(dbgs() << "ObjCARCOpt::OptimizeIndividualCalls: Replacing "
+                        "objc_autorelease(x) with objc_release(x) since x is "
+                        "otherwise unused.\n"
+                        "                                     Old: " << *Call
+                        "\n                                     New: " <<
+                        *NewCall << "\n");
+        
         EraseInstruction(Call);
         Inst = NewCall;
         Class = IC_Release;