One more try with unused.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232357 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/ObjCARC/ObjCARCOpts.cpp b/lib/Transforms/ObjCARC/ObjCARCOpts.cpp
index 9d397646411cb0be9ec1d1a8410c1df83e287d11..27aadb8c0ec4661dc2fbdb99285ed3bbc46607dc 100644 (file)
--- a/lib/Transforms/ObjCARC/ObjCARCOpts.cpp
+++ b/lib/Transforms/ObjCARC/ObjCARCOpts.cpp
@@ -316,7 +316,8 @@ namespace {
 }
 
 namespace llvm {
-  raw_ostream &operator<<(raw_ostream &OS, BBState &BBState);
+raw_ostream &operator<<(raw_ostream &OS,
+                        BBState &BBState) LLVM_ATTRIBUTE_UNUSED;
 }
 
 void BBState::InitFromPred(const BBState &Other) {