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If node is not available then use FuncInfo.ValueMap to emit debug info for byval parameter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112238 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -3947,7 +3947,7 @@ SelectionDAGBuilder::EmitFuncArgumentDbgValue(const Value *V, MDNode *Variable,
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return false;
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unsigned Reg = 0;
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if (N.getOpcode() == ISD::CopyFromReg) {
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if (N.getNode() && N.getOpcode() == ISD::CopyFromReg) {
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Reg = cast<RegisterSDNode>(N.getOperand(1))->getReg();
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if (Reg && TargetRegisterInfo::isVirtualRegister(Reg)) {
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MachineRegisterInfo &RegInfo = MF.getRegInfo();
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@ -4111,10 +4111,14 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
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return 0;
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DAG.AddDbgValue(SDV, N.getNode(), isParameter);
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} else {
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// This isn't useful, but it shows what we're missing.
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SDV = DAG.getDbgValue(Variable, UndefValue::get(Address->getType()),
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0, dl, SDNodeOrder);
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DAG.AddDbgValue(SDV, 0, isParameter);
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// If Address is an arugment then try to emits its dbg value using
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// virtual register info from the FuncInfo.ValueMap. Otherwise add undef
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// to help track missing debug info.
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if (!EmitFuncArgumentDbgValue(Address, Variable, 0, N)) {
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SDV = DAG.getDbgValue(Variable, UndefValue::get(Address->getType()),
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0, dl, SDNodeOrder);
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DAG.AddDbgValue(SDV, 0, isParameter);
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}
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}
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return 0;
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}
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