From 5e2456c95996338ad7ed461b8ce4d21cb9d70a0b Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Tue, 10 Jul 2007 17:52:20 +0000 Subject: [PATCH] If the operand is marked M_OPTIONAL_DEF_OPERAND, then it's a def. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38496 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/ScheduleDAG.cpp | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp index a1cb244e6b9..2252e7dcd79 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?");