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If node is not available then use FuncInfo.ValueMap to emit debug info for byval parameter.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112238 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel
2010-08-26 22:53:27 +00:00
parent 700f5df518
commit 6cd467bd0e
1 changed files with 9 additions and 5 deletions
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14
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
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@@ -3947,7 +3947,7 @@ SelectionDAGBuilder::EmitFuncArgumentDbgValue(const Value *V, MDNode *Variable,
return false; return false;
unsigned Reg = 0; unsigned Reg = 0;
if (N.getOpcode() == ISD::CopyFromReg) { if (N.getNode() && N.getOpcode() == ISD::CopyFromReg) {
Reg = cast<RegisterSDNode>(N.getOperand(1))->getReg(); Reg = cast<RegisterSDNode>(N.getOperand(1))->getReg();
if (Reg && TargetRegisterInfo::isVirtualRegister(Reg)) { if (Reg && TargetRegisterInfo::isVirtualRegister(Reg)) {
MachineRegisterInfo &RegInfo = MF.getRegInfo(); MachineRegisterInfo &RegInfo = MF.getRegInfo();
@@ -4111,10 +4111,14 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
return 0; return 0;
DAG.AddDbgValue(SDV, N.getNode(), isParameter); DAG.AddDbgValue(SDV, N.getNode(), isParameter);
} else { } else {
// This isn't useful, but it shows what we're missing. // If Address is an arugment then try to emits its dbg value using
SDV = DAG.getDbgValue(Variable, UndefValue::get(Address->getType()), // virtual register info from the FuncInfo.ValueMap. Otherwise add undef
0, dl, SDNodeOrder); // to help track missing debug info.
DAG.AddDbgValue(SDV, 0, isParameter); if (!EmitFuncArgumentDbgValue(Address, Variable, 0, N)) {
SDV = DAG.getDbgValue(Variable, UndefValue::get(Address->getType()),
0, dl, SDNodeOrder);
DAG.AddDbgValue(SDV, 0, isParameter);
}
} }
return 0; return 0;
} }