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-rw-r--r--llvm/lib/CodeGen/TailDuplication.cpp2
-rw-r--r--llvm/lib/CodeGen/TargetInstrInfoImpl.cpp7
2 files changed, 8 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/TailDuplication.cpp b/llvm/lib/CodeGen/TailDuplication.cpp
index fddbebd9f7b..c99c74c0f4d 100644
--- a/llvm/lib/CodeGen/TailDuplication.cpp
+++ b/llvm/lib/CodeGen/TailDuplication.cpp
@@ -346,7 +346,7 @@ void TailDuplicatePass::DuplicateInstruction(MachineInstr *MI,
MachineBasicBlock *PredBB,
MachineFunction &MF,
DenseMap<unsigned, unsigned> &LocalVRMap) {
- MachineInstr *NewMI = MF.CloneMachineInstr(MI);
+ MachineInstr *NewMI = TII->duplicate(MI, MF);
for (unsigned i = 0, e = NewMI->getNumOperands(); i != e; ++i) {
MachineOperand &MO = NewMI->getOperand(i);
if (!MO.isReg())
diff --git a/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp b/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
index 393e315a321..a0fccabdb5a 100644
--- a/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
+++ b/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
@@ -150,6 +150,13 @@ void TargetInstrInfoImpl::reMaterialize(MachineBasicBlock &MBB,
MBB.insert(I, MI);
}
+MachineInstr *TargetInstrInfoImpl::duplicate(MachineInstr *Orig,
+ MachineFunction &MF) const {
+ assert(!Orig->getDesc().isNotDuplicable() &&
+ "Instruction cannot be duplicated");
+ return MF.CloneMachineInstr(Orig);
+}
+
bool
TargetInstrInfoImpl::isIdentical(const MachineInstr *MI,
const MachineInstr *Other,
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