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Skip identical instruction while calculating DBG_VALUE range.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105340 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -2180,12 +2180,15 @@ void DwarfDebug::collectVariableInfo(const MachineFunction *MF) {
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if (Processed.count(DV) != 0)
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continue;
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const MachineInstr *PrevMI = MInsn;
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for (SmallVector<const MachineInstr *, 8>::iterator MI = I+1,
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ME = DbgValues.end(); MI != ME; ++MI) {
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const MDNode *Var =
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(*MI)->getOperand((*MI)->getNumOperands()-1).getMetadata();
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if (Var == DV && isDbgValueInDefinedReg(*MI))
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if (Var == DV && isDbgValueInDefinedReg(*MI) &&
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!PrevMI->isIdenticalTo(*MI))
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MultipleValues.push_back(*MI);
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PrevMI = *MI;
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}
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DbgScope *Scope = findDbgScope(MInsn);
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