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Skip identical instruction while calculating DBG_VALUE range.

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llvm-svn: 105340
This commit is contained in:
Devang Patel 2010-06-02 19:05:13 +00:00
parent fd208cef5d
commit 5fb0590e9c
1 changed files with 4 additions and 1 deletions
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5
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -2180,12 +2180,15 @@ void DwarfDebug::collectVariableInfo(const MachineFunction *MF) {
if (Processed.count(DV) != 0)
continue;
const MachineInstr *PrevMI = MInsn;
for (SmallVector<const MachineInstr *, 8>::iterator MI = I+1,
ME = DbgValues.end(); MI != ME; ++MI) {
const MDNode *Var =
(*MI)->getOperand((*MI)->getNumOperands()-1).getMetadata();
if (Var == DV && isDbgValueInDefinedReg(*MI))
if (Var == DV && isDbgValueInDefinedReg(*MI) &&
!PrevMI->isIdenticalTo(*MI))
MultipleValues.push_back(*MI);
PrevMI = *MI;
}
DbgScope *Scope = findDbgScope(MInsn);