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Remove variables which are assigned to but for which the value 

is not used.  Spotted by gcc-4.6.

llvm-svn: 106854
This commit is contained in:
Duncan Sands 2010-06-25 14:48:39 +00:00
parent 948dd57945
commit 2dc70bea54
4 changed files with 1 additions and 11 deletions
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1
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -6108,7 +6108,6 @@ SDValue DAGCombiner::visitEXTRACT_VECTOR_ELT(SDNode *N) {
// Check if the result type doesn't match the inserted element type. A
// SCALAR_TO_VECTOR may truncate the inserted element and the
// EXTRACT_VECTOR_ELT may widen the extracted vector.
EVT EltVT = InVec.getValueType().getVectorElementType();
SDValue InOp = InVec.getOperand(0);
EVT NVT = N->getValueType(0);
if (InOp.getValueType() != NVT) {

9
llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
View File

@ -168,7 +168,6 @@ void ScheduleDAGSDNodes::ClusterNeighboringLoads(SDNode *Node) {
DenseMap<long long, SDNode*> O2SMap; // Map from offset to SDNode.
bool Cluster = false;
SDNode *Base = Node;
int64_t BaseOffset;
for (SDNode::use_iterator I = Chain->use_begin(), E = Chain->use_end();
I != E; ++I) {
SDNode *User = *I;
@ -184,12 +183,8 @@ void ScheduleDAGSDNodes::ClusterNeighboringLoads(SDNode *Node) {
Offsets.push_back(Offset1);
O2SMap.insert(std::make_pair(Offset2, User));
Offsets.push_back(Offset2);
if (Offset2 < Offset1) {
if (Offset2 < Offset1)
Base = User;
BaseOffset = Offset2;
} else {
BaseOffset = Offset1;
}
Cluster = true;
}
@ -625,7 +620,6 @@ MachineBasicBlock *ScheduleDAGSDNodes::EmitSchedule() {
SDDbgInfo::DbgIterator DE = DAG->DbgEnd();
// Now emit the rest according to source order.
unsigned LastOrder = 0;
MachineInstr *LastMI = 0;
for (unsigned i = 0, e = Orders.size(); i != e && DI != DE; ++i) {
unsigned Order = Orders[i].first;
MachineInstr *MI = Orders[i].second;
@ -657,7 +651,6 @@ MachineBasicBlock *ScheduleDAGSDNodes::EmitSchedule() {
}
}
LastOrder = Order;
LastMI = MI;
}
// Add trailing DbgValue's before the terminator. FIXME: May want to add
// some of them before one or more conditional branches?

1
llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
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@ -2286,7 +2286,6 @@ bool SelectionDAG::isVerifiedDebugInfoDesc(SDValue Op) const {
SDValue SelectionDAG::getShuffleScalarElt(const ShuffleVectorSDNode *N,
unsigned i) {
EVT VT = N->getValueType(0);
DebugLoc dl = N->getDebugLoc();
if (N->getMaskElt(i) < 0)
return getUNDEF(VT.getVectorElementType());
unsigned Index = N->getMaskElt(i);

1
llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
View File

@ -4177,7 +4177,6 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
DAG.getMachineFunction().getMMI().setCallsUnwindInit(true);
return 0;
case Intrinsic::eh_dwarf_cfa: {
EVT VT = getValue(I.getArgOperand(0)).getValueType();
SDValue CfaArg = DAG.getSExtOrTrunc(getValue(I.getArgOperand(0)), dl,
TLI.getPointerTy());
SDValue Offset = DAG.getNode(ISD::ADD, dl,