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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13898 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -209,15 +209,15 @@ void InstructionSelection::InsertCodeForPhis(Function &F) {
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for (MachineFunction::iterator BB = MF.begin(); BB != MF.end(); ++BB) {
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for (BasicBlock::const_iterator IIt = BB->getBasicBlock()->begin();
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const PHINode *PN = dyn_cast<PHINode>(IIt); ++IIt) {
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Value *PhiCpRes = new PHINode(PN->getType(), PN->getName() + ":PhiCp");
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// Create a new temporary register to hold the result of the Phi copy.
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// The leak detector shouldn't track these nodes. They are not garbage,
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// even though their parent field is never filled in.
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Value *PhiCpRes = new PHINode(PN->getType(), PN->getName() + ":PhiCp");
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LeakDetector::removeGarbageObject(PhiCpRes);
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// for each incoming value of the phi, insert phi elimination
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// For each of PN's incoming values, insert a copy in the corresponding
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// predecessor block.
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for (unsigned i = 0; i < PN->getNumIncomingValues(); ++i) {
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// insert the copy instruction to the predecessor BB
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std::vector<MachineInstr*> mvec, CpVec;
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Target.getRegInfo().cpValue2Value(PN->getIncomingValue(i), PhiCpRes,
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mvec);
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@ -228,10 +228,10 @@ void InstructionSelection::InsertCodeForPhis(Function &F) {
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CpVec2.push_back(*MI);
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CpVec.insert(CpVec.end(), CpVec2.begin(), CpVec2.end());
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}
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// Insert the copy instructions into the predecessor BB.
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InsertPhiElimInstructions(PN->getIncomingBlock(i), CpVec);
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}
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// Insert a copy instruction from PhiCpRes to PN.
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std::vector<MachineInstr*> mvec;
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Target.getRegInfo().cpValue2Value(PhiCpRes, const_cast<PHINode*>(PN),
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mvec);
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