const char *PPCTargetLowering::getTargetNodeName(unsigned Opcode) const {
switch (Opcode) {
- default: return 0;
+ default: return nullptr;
case PPCISD::FSEL: return "PPCISD::FSEL";
case PPCISD::FCFID: return "PPCISD::FCFID";
case PPCISD::FCTIDZ: return "PPCISD::FCTIDZ";
/// the constant being splatted. The ByteSize field indicates the number of
/// bytes of each element [124] -> [bhw].
SDValue PPC::get_VSPLTI_elt(SDNode *N, unsigned ByteSize, SelectionDAG &DAG) {
- SDValue OpVal(0, 0);
+ SDValue OpVal(nullptr, 0);
// If ByteSize of the splat is bigger than the element size of the
// build_vector, then we have a case where we are checking for a splat where
if (!isa<ConstantSDNode>(N->getOperand(i))) return SDValue();
- if (UniquedVals[i&(Multiple-1)].getNode() == 0)
+ if (!UniquedVals[i&(Multiple-1)].getNode())
UniquedVals[i&(Multiple-1)] = N->getOperand(i);
else if (UniquedVals[i&(Multiple-1)] != N->getOperand(i))
return SDValue(); // no match.
bool LeadingZero = true;
bool LeadingOnes = true;
for (unsigned i = 0; i != Multiple-1; ++i) {
- if (UniquedVals[i].getNode() == 0) continue; // Must have been undefs.
+ if (!UniquedVals[i].getNode()) continue; // Must have been undefs.
LeadingZero &= cast<ConstantSDNode>(UniquedVals[i])->isNullValue();
LeadingOnes &= cast<ConstantSDNode>(UniquedVals[i])->isAllOnesValue();
}
// Finally, check the least significant entry.
if (LeadingZero) {
- if (UniquedVals[Multiple-1].getNode() == 0)
+ if (!UniquedVals[Multiple-1].getNode())
return DAG.getTargetConstant(0, MVT::i32); // 0,0,0,undef
int Val = cast<ConstantSDNode>(UniquedVals[Multiple-1])->getZExtValue();
if (Val < 16)
return DAG.getTargetConstant(Val, MVT::i32); // 0,0,0,4 -> vspltisw(4)
}
if (LeadingOnes) {
- if (UniquedVals[Multiple-1].getNode() == 0)
+ if (!UniquedVals[Multiple-1].getNode())
return DAG.getTargetConstant(~0U, MVT::i32); // -1,-1,-1,undef
int Val =cast<ConstantSDNode>(UniquedVals[Multiple-1])->getSExtValue();
if (Val >= -16) // -1,-1,-1,-2 -> vspltisw(-2)
// Check to see if this buildvec has a single non-undef value in its elements.
for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
if (N->getOperand(i).getOpcode() == ISD::UNDEF) continue;
- if (OpVal.getNode() == 0)
+ if (!OpVal.getNode())
OpVal = N->getOperand(i);
else if (OpVal != N->getOperand(i))
return SDValue();
}
- if (OpVal.getNode() == 0) return SDValue(); // All UNDEF: use implicit def.
+ if (!OpVal.getNode()) return SDValue(); // All UNDEF: use implicit def.
unsigned ValSizeInBytes = EltSize;
uint64_t Value = 0;
/// GetLabelAccessInfo - Return true if we should reference labels using a
/// PICBase, set the HiOpFlags and LoOpFlags to the target MO flags.
static bool GetLabelAccessInfo(const TargetMachine &TM, unsigned &HiOpFlags,
- unsigned &LoOpFlags, const GlobalValue *GV = 0) {
+ unsigned &LoOpFlags,
+ const GlobalValue *GV = nullptr) {
HiOpFlags = PPCII::MO_HA;
LoOpFlags = PPCII::MO_LO;
/// 32-bit value is representable in the immediate field of a BxA instruction.
static SDNode *isBLACompatibleAddress(SDValue Op, SelectionDAG &DAG) {
ConstantSDNode *C = dyn_cast<ConstantSDNode>(Op);
- if (!C) return 0;
+ if (!C) return nullptr;
int Addr = C->getZExtValue();
if ((Addr & 3) != 0 || // Low 2 bits are implicitly zero.
SignExtend32<26>(Addr) != Addr)
- return 0; // Top 6 bits have to be sext of immediate.
+ return nullptr; // Top 6 bits have to be sext of immediate.
return DAG.getConstant((int)C->getZExtValue() >> 2,
DAG.getTargetLoweringInfo().getPointerTy()).getNode();
}
Chain = DAG.getNode(PPCISD::MTCTR, dl, NodeTys, MTCTROps,
- 2 + (InFlag.getNode() != 0));
+ InFlag.getNode() ? 3 : 2);
InFlag = Chain.getValue(1);
NodeTys.clear();
NodeTys.push_back(MVT::Glue);
Ops.push_back(Chain);
CallOpc = PPCISD::BCTRL;
- Callee.setNode(0);
+ Callee.setNode(nullptr);
// Add use of X11 (holding environment pointer)
if (isSVR4ABI && isPPC64)
Ops.push_back(DAG.getRegister(PPC::X11, PtrVT));
return true;
const TargetLowering &TLI = DAG.getTargetLoweringInfo();
- const GlobalValue *GV1 = NULL;
- const GlobalValue *GV2 = NULL;
+ const GlobalValue *GV1 = nullptr;
+ const GlobalValue *GV2 = nullptr;
int64_t Offset1 = 0;
int64_t Offset2 = 0;
bool isGA1 = TLI.isGAPlusOffset(Loc.getNode(), GV1, Offset1);
if (N->getOperand(1).getOpcode() == ISD::FSQRT) {
SDValue RV =
DAGCombineFastRecipFSQRT(N->getOperand(1).getOperand(0), DCI);
- if (RV.getNode() != 0) {
+ if (RV.getNode()) {
DCI.AddToWorklist(RV.getNode());
return DAG.getNode(ISD::FMUL, dl, N->getValueType(0),
N->getOperand(0), RV);
SDValue RV =
DAGCombineFastRecipFSQRT(N->getOperand(1).getOperand(0).getOperand(0),
DCI);
- if (RV.getNode() != 0) {
+ if (RV.getNode()) {
DCI.AddToWorklist(RV.getNode());
RV = DAG.getNode(ISD::FP_EXTEND, SDLoc(N->getOperand(1)),
N->getValueType(0), RV);
SDValue RV =
DAGCombineFastRecipFSQRT(N->getOperand(1).getOperand(0).getOperand(0),
DCI);
- if (RV.getNode() != 0) {
+ if (RV.getNode()) {
DCI.AddToWorklist(RV.getNode());
RV = DAG.getNode(ISD::FP_ROUND, SDLoc(N->getOperand(1)),
N->getValueType(0), RV,
}
SDValue RV = DAGCombineFastRecip(N->getOperand(1), DCI);
- if (RV.getNode() != 0) {
+ if (RV.getNode()) {
DCI.AddToWorklist(RV.getNode());
return DAG.getNode(ISD::FMUL, dl, N->getValueType(0),
N->getOperand(0), RV);
// Compute this as 1/(1/sqrt(X)), which is the reciprocal of the
// reciprocal sqrt.
SDValue RV = DAGCombineFastRecipFSQRT(N->getOperand(0), DCI);
- if (RV.getNode() != 0) {
+ if (RV.getNode()) {
DCI.AddToWorklist(RV.getNode());
RV = DAGCombineFastRecip(RV, DCI);
- if (RV.getNode() != 0) {
+ if (RV.getNode()) {
// Unfortunately, RV is now NaN if the input was exactly 0. Select out
// this case and force the answer to 0.
!N->getOperand(2).hasOneUse()) {
// Scan all of the users of the LHS, looking for VCMPo's that match.
- SDNode *VCMPoNode = 0;
+ SDNode *VCMPoNode = nullptr;
SDNode *LHSN = N->getOperand(0).getNode();
for (SDNode::use_iterator UI = LHSN->use_begin(), E = LHSN->use_end();
// Look at the (necessarily single) use of the flag value. If it has a
// chain, this transformation is more complex. Note that multiple things
// could use the value result, which we should ignore.
- SDNode *FlagUser = 0;
+ SDNode *FlagUser = nullptr;
for (SDNode::use_iterator UI = VCMPoNode->use_begin();
- FlagUser == 0; ++UI) {
+ FlagUser == nullptr; ++UI) {
assert(UI != VCMPoNode->use_end() && "Didn't find user!");
SDNode *User = *UI;
for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) {
Value *CallOperandVal = info.CallOperandVal;
// If we don't have a value, we can't do a match,
// but allow it at the lowest weight.
- if (CallOperandVal == NULL)
+ if (!CallOperandVal)
return CW_Default;
Type *type = CallOperandVal->getType();
std::string &Constraint,
std::vector<SDValue>&Ops,
SelectionDAG &DAG) const {
- SDValue Result(0,0);
+ SDValue Result;
// Only support length 1 constraints.
if (Constraint.length() > 1) return;
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