diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index 43e6b1bc8a..254a6543ff 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -3699,7 +3699,7 @@ SelectionDAGBuilder::EmitFuncArgumentDbgValue(const DbgValueInst &DI, unsigned Reg = 0; if (N.getOpcode() == ISD::CopyFromReg) { Reg = cast<RegisterSDNode>(N.getOperand(1))->getReg(); - if (TargetRegisterInfo::isVirtualRegister(Reg)) { + if (Reg && TargetRegisterInfo::isVirtualRegister(Reg)) { MachineRegisterInfo &RegInfo = MF.getRegInfo(); unsigned PR = RegInfo.getLiveInPhysReg(Reg); if (PR) |