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-rw-r--r--lib/Target/SystemZ/SystemZISelLowering.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Target/SystemZ/SystemZISelLowering.cpp b/lib/Target/SystemZ/SystemZISelLowering.cpp
index d6b476e5ea..f7405a52de 100644
--- a/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ b/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -250,11 +250,13 @@ SystemZTargetLowering::LowerFormalArguments(SDValue Chain,
SDValue
SystemZTargetLowering::LowerCall(SDValue Chain, SDValue Callee,
CallingConv::ID CallConv, bool isVarArg,
- bool isTailCall,
+ bool &isTailCall,
const SmallVectorImpl<ISD::OutputArg> &Outs,
const SmallVectorImpl<ISD::InputArg> &Ins,
DebugLoc dl, SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals) {
+ // SystemZ target does not yet support tail call optimization.
+ isTailCall = false;
switch (CallConv) {
default: