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If the operand is marked M_OPTIONAL_DEF_OPERAND, then it's a def.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38496 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2007-07-10 17:52:20 +00:00
parent 11ce02dbdd
commit 5e2456c959
1 changed files with 4 additions and 1 deletions
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5
lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
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@ -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?");