diff options
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 22b5ae602c..a96a99781f 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -1790,7 +1790,11 @@ SDValue SelectionDAGLegalize::ExpandLibCall(RTLIB::Libcall LC, SDNode *Node, // isTailCall may be true since the callee does not reference caller stack // frame. Check if it's in the right position. - bool isTailCall = isInTailCallPosition(DAG, Node, InChain, TLI); + SDValue TCChain = InChain; + bool isTailCall = isInTailCallPosition(DAG, Node, TCChain, TLI); + if (isTailCall) + InChain = TCChain; + std::pair<SDValue, SDValue> CallInfo = TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, false, 0, TLI.getLibcallCallingConv(LC), isTailCall, |