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-rw-r--r--llvm/lib/Transforms/Scalar/ObjCARC.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/ObjCARC.cpp b/llvm/lib/Transforms/Scalar/ObjCARC.cpp
index d4e151c02ef..c840e6e4c8c 100644
--- a/llvm/lib/Transforms/Scalar/ObjCARC.cpp
+++ b/llvm/lib/Transforms/Scalar/ObjCARC.cpp
@@ -2443,6 +2443,9 @@ void ObjCARCOpt::OptimizeIndividualCalls(Function &F) {
// a tail keyword.
if (IsAlwaysTail(Class)) {
Changed = true;
+ DEBUG(dbgs() << "ObjCARCOpt::OptimizeIndividualCalls: Adding tail keyword"
+ " to function since it can never be passed stack args: " << *Inst <<
+ "\n");
cast<CallInst>(Inst)->setTailCall();
}
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