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Remove variables which are assigned to but for which the value
is not used. Spotted by gcc-4.6. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106854 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -6108,7 +6108,6 @@ SDValue DAGCombiner::visitEXTRACT_VECTOR_ELT(SDNode *N) {
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// Check if the result type doesn't match the inserted element type. A
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// SCALAR_TO_VECTOR may truncate the inserted element and the
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// EXTRACT_VECTOR_ELT may widen the extracted vector.
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EVT EltVT = InVec.getValueType().getVectorElementType();
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SDValue InOp = InVec.getOperand(0);
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EVT NVT = N->getValueType(0);
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if (InOp.getValueType() != NVT) {
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@ -168,7 +168,6 @@ void ScheduleDAGSDNodes::ClusterNeighboringLoads(SDNode *Node) {
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DenseMap<long long, SDNode*> O2SMap; // Map from offset to SDNode.
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bool Cluster = false;
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SDNode *Base = Node;
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int64_t BaseOffset;
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for (SDNode::use_iterator I = Chain->use_begin(), E = Chain->use_end();
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I != E; ++I) {
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SDNode *User = *I;
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@ -184,12 +183,8 @@ void ScheduleDAGSDNodes::ClusterNeighboringLoads(SDNode *Node) {
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Offsets.push_back(Offset1);
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O2SMap.insert(std::make_pair(Offset2, User));
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Offsets.push_back(Offset2);
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if (Offset2 < Offset1) {
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if (Offset2 < Offset1)
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Base = User;
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BaseOffset = Offset2;
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} else {
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BaseOffset = Offset1;
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}
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Cluster = true;
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}
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@ -625,7 +620,6 @@ MachineBasicBlock *ScheduleDAGSDNodes::EmitSchedule() {
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SDDbgInfo::DbgIterator DE = DAG->DbgEnd();
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// Now emit the rest according to source order.
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unsigned LastOrder = 0;
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MachineInstr *LastMI = 0;
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for (unsigned i = 0, e = Orders.size(); i != e && DI != DE; ++i) {
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unsigned Order = Orders[i].first;
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MachineInstr *MI = Orders[i].second;
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@ -657,7 +651,6 @@ MachineBasicBlock *ScheduleDAGSDNodes::EmitSchedule() {
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}
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}
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LastOrder = Order;
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LastMI = MI;
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}
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// Add trailing DbgValue's before the terminator. FIXME: May want to add
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// some of them before one or more conditional branches?
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@ -2286,7 +2286,6 @@ bool SelectionDAG::isVerifiedDebugInfoDesc(SDValue Op) const {
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SDValue SelectionDAG::getShuffleScalarElt(const ShuffleVectorSDNode *N,
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unsigned i) {
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EVT VT = N->getValueType(0);
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DebugLoc dl = N->getDebugLoc();
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if (N->getMaskElt(i) < 0)
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return getUNDEF(VT.getVectorElementType());
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unsigned Index = N->getMaskElt(i);
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@ -4177,7 +4177,6 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
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DAG.getMachineFunction().getMMI().setCallsUnwindInit(true);
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return 0;
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case Intrinsic::eh_dwarf_cfa: {
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EVT VT = getValue(I.getArgOperand(0)).getValueType();
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SDValue CfaArg = DAG.getSExtOrTrunc(getValue(I.getArgOperand(0)), dl,
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TLI.getPointerTy());
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SDValue Offset = DAG.getNode(ISD::ADD, dl,
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