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| author | Evan Cheng <evan.cheng@apple.com> | 2007-07-10 17:52:20 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2007-07-10 17:52:20 +0000 |
| commit | 5e2456c95996338ad7ed461b8ce4d21cb9d70a0b (patch) | |
| tree | 5d1f7f6f64d414071782b40ae8ab7d4a6d683261 /lib/CodeGen/SelectionDAG/ScheduleDAG.cpp | |
| parent | 11ce02dbddf4b6629b8537f89d742c98c3c2bce2 (diff) | |
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
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?"); |