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Perform correct codegen for eh_dwarf_cfa intrinsic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41316 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -2751,11 +2751,19 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
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case Intrinsic::eh_dwarf_cfa: {
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if (ExceptionHandling) {
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MVT::ValueType VT = getValue(I.getOperand(1)).getValueType();
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SDOperand CfaArg;
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if (MVT::getSizeInBits(VT) > MVT::getSizeInBits(TLI.getPointerTy()))
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CfaArg = DAG.getNode(ISD::TRUNCATE,
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TLI.getPointerTy(), getValue(I.getOperand(1)));
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else
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CfaArg = DAG.getNode(ISD::SIGN_EXTEND,
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TLI.getPointerTy(), getValue(I.getOperand(1)));
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SDOperand Offset = DAG.getNode(ISD::ADD,
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TLI.getPointerTy(),
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DAG.getNode(ISD::FRAME_TO_ARGS_OFFSET,
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VT),
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getValue(I.getOperand(1)));
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TLI.getPointerTy()),
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CfaArg);
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setValue(&I, DAG.getNode(ISD::ADD,
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TLI.getPointerTy(),
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DAG.getNode(ISD::FRAMEADDR,
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