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Don't coalesce identical DBG_VALUE instructions prematurely.

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Each of these instructions may have a RegsClobberInsn entry that can't be
ignored. Consecutive ranges are coalesced later when DwarfDebug::emitDebugLoc
merges entries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128155 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2011-03-23 18:37:30 +00:00
parent db3480c432
commit 01079311e1
1 changed files with 1 additions and 3 deletions
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4
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -2419,14 +2419,12 @@ 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 && !PrevMI->isIdenticalTo(*MI))
if (Var == DV)
MultipleValues.push_back(*MI);
PrevMI = *MI;
}
DbgScope *Scope = NULL;