diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/ScheduleDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/ScheduleDAG.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp index a1cb244e6b..2252e7dcd7 100644 --- a/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp +++ b/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp @@ -323,7 +323,10 @@ void ScheduleDAG::AddOperand(MachineInstr *MI, SDOperand Op, // Get/emit the operand. unsigned VReg = getVR(Op, VRBaseMap); - MI->addRegOperand(VReg, false); + const TargetInstrDescriptor *TID = MI->getInstrDescriptor(); + bool isOptDef = (IIOpNum < TID->numOperands) + ? (TID->OpInfo[IIOpNum].Flags & M_OPTIONAL_DEF_OPERAND) : false; + MI->addRegOperand(VReg, isOptDef); // Verify that it is right. assert(MRegisterInfo::isVirtualRegister(VReg) && "Not a vreg?"); |