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Replace size method call of containers to empty method where appropriate

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This patch was generated by a clang tidy checker that is being open sourced.
The documentation of that checker is the following:

/// The emptiness of a container should be checked using the empty method
/// instead of the size method. It is not guaranteed that size is a
/// constant-time function, and it is generally more efficient and also shows
/// clearer intent to use empty. Furthermore some containers may implement the
/// empty method but not implement the size method. Using empty whenever
/// possible makes it easier to switch to another container in the future.

Patch by Gábor Horváth!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226161 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alexander Kornienko 2015-01-15 11:41:30 +00:00
parent e2ffd02ad3
commit b4c6267f7c
18 changed files with 25 additions and 25 deletions
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2
lib/CodeGen/SelectionDAG/TargetLowering.cpp
View File

@ -2340,7 +2340,7 @@ TargetLowering::AsmOperandInfoVector TargetLowering::ParseConstraints(
}
// If we have multiple alternative constraints, select the best alternative.
if (ConstraintOperands.size()) {
if (!ConstraintOperands.empty()) {
if (maCount) {
unsigned bestMAIndex = 0;
int bestWeight = -1;

4
lib/CodeGen/UnreachableBlockElim.cpp
View File

@ -88,7 +88,7 @@ bool UnreachableBlockElim::runOnFunction(Function &F) {
DeadBlocks[i]->eraseFromParent();
}
return DeadBlocks.size();
return !DeadBlocks.empty();
}
@ -204,5 +204,5 @@ bool UnreachableMachineBlockElim::runOnMachineFunction(MachineFunction &F) {
F.RenumberBlocks();
return (DeadBlocks.size() || ModifiedPHI);
return (!DeadBlocks.empty() || ModifiedPHI);
}

2
lib/MC/MCMachOStreamer.cpp
View File

@ -183,7 +183,7 @@ void MCMachOStreamer::EmitDataRegionEnd() {
if (!getAssembler().getBackend().hasDataInCodeSupport())
return;
std::vector<DataRegionData> &Regions = getAssembler().getDataRegions();
assert(Regions.size() && "Mismatched .end_data_region!");
assert(!Regions.empty() && "Mismatched .end_data_region!");
DataRegionData &Data = Regions.back();
assert(!Data.End && "Mismatched .end_data_region!");
// Create a temporary label to mark the end of the data region.

2
lib/MC/MCParser/AsmParser.cpp
View File

@ -3275,7 +3275,7 @@ bool AsmParser::parseDirectiveMacro(SMLoc DirectiveLoc) {
MCAsmMacroParameters Parameters;
while (getLexer().isNot(AsmToken::EndOfStatement)) {
if (Parameters.size() && Parameters.back().Vararg)
if (!Parameters.empty() && Parameters.back().Vararg)
return Error(Lexer.getLoc(),
"Vararg parameter '" + Parameters.back().Name +
"' should be last one in the list of parameters.");

2
lib/ProfileData/CoverageMapping.cpp
View File

@ -309,7 +309,7 @@ public:
while (!ActiveRegions.empty() &&
ActiveRegions.back()->endLoc() <= Region.startLoc())
popRegion();
if (Segments.size() && Segments.back().Line == Region.LineStart &&
if (!Segments.empty() && Segments.back().Line == Region.LineStart &&
Segments.back().Col == Region.ColumnStart) {
if (Region.Kind != coverage::CounterMappingRegion::SkippedRegion)
Segments.back().addCount(Region.ExecutionCount);

2
lib/TableGen/Record.cpp
View File

@ -1629,7 +1629,7 @@ std::string DagInit::getAsString() const {
std::string Result = "(" + Val->getAsString();
if (!ValName.empty())
Result += ":" + ValName;
if (Args.size()) {
if (!Args.empty()) {
Result += " " + Args[0]->getAsString();
if (!ArgNames[0].empty()) Result += ":$" + ArgNames[0];
for (unsigned i = 1, e = Args.size(); i != e; ++i) {

2
lib/TableGen/TGParser.cpp
View File

@ -1676,7 +1676,7 @@ std::vector<Init*> TGParser::ParseValueList(Record *CurRec, Record *ArgsRec,
unsigned int ArgN = 0;
if (ArgsRec && !EltTy) {
const std::vector<Init *> &TArgs = ArgsRec->getTemplateArgs();
if (!TArgs.size()) {
if (TArgs.empty()) {
TokError("template argument provided to non-template class");
return std::vector<Init*>();
}

2
lib/Transforms/Vectorize/BBVectorize.cpp
View File

@ -1277,7 +1277,7 @@ namespace {
CostSavings, FixedOrder)) continue;
// J is a candidate for merging with I.
if (!PairableInsts.size() ||
if (PairableInsts.empty() ||
PairableInsts[PairableInsts.size()-1] != I) {
PairableInsts.push_back(I);
}

4
lib/Transforms/Vectorize/LoopVectorize.cpp
View File

@ -3549,7 +3549,7 @@ bool LoopVectorizationLegality::canVectorize() {
}
// We can only vectorize innermost loops.
if (TheLoop->getSubLoopsVector().size()) {
if (!TheLoop->getSubLoopsVector().empty()) {
emitAnalysis(Report() << "loop is not the innermost loop");
return false;
}
@ -4011,7 +4011,7 @@ void LoopVectorizationLegality::collectLoopUniforms() {
if (I->getType()->isPointerTy() && isConsecutivePtr(I))
Worklist.insert(Worklist.end(), I->op_begin(), I->op_end());
while (Worklist.size()) {
while (!Worklist.empty()) {
Instruction *I = dyn_cast<Instruction>(Worklist.back());
Worklist.pop_back();

2
lib/Transforms/Vectorize/SLPVectorizer.cpp
View File

@ -1760,7 +1760,7 @@ int BoUpSLP::getTreeCost() {
// We only vectorize tiny trees if it is fully vectorizable.
if (VectorizableTree.size() < 3 && !isFullyVectorizableTinyTree()) {
if (!VectorizableTree.size()) {
if (VectorizableTree.empty()) {
assert(!ExternalUses.size() && "We should not have any external users");
}
return INT_MAX;

4
utils/TableGen/AsmMatcherEmitter.cpp
View File

@ -2653,7 +2653,7 @@ void AsmMatcherEmitter::run(raw_ostream &OS) {
<< " bool matchingInlineAsm,\n"
<< " unsigned VariantID = 0);\n";
if (Info.OperandMatchInfo.size()) {
if (!Info.OperandMatchInfo.empty()) {
OS << "\n enum OperandMatchResultTy {\n";
OS << " MatchOperand_Success, // operand matched successfully\n";
OS << " MatchOperand_NoMatch, // operand did not match\n";
@ -3011,7 +3011,7 @@ void AsmMatcherEmitter::run(raw_ostream &OS) {
OS << " return Match_MissingFeature;\n";
OS << "}\n\n";
if (Info.OperandMatchInfo.size())
if (!Info.OperandMatchInfo.empty())
emitCustomOperandParsing(OS, Target, Info, ClassName, StringTable,
MaxMnemonicIndex);

4
utils/TableGen/AsmWriterEmitter.cpp
View File

@ -998,7 +998,7 @@ void AsmWriterEmitter::EmitPrintAliasInstruction(raw_ostream &O) {
return;
}
if (MCOpPredicates.size())
if (!MCOpPredicates.empty())
O << "static bool " << Target.getName() << ClassName
<< "ValidateMCOperand(\n"
<< " const MCOperand &MCOp, unsigned PredicateIndex);\n";
@ -1064,7 +1064,7 @@ void AsmWriterEmitter::EmitPrintAliasInstruction(raw_ostream &O) {
}
O << "}\n\n";
if (MCOpPredicates.size()) {
if (!MCOpPredicates.empty()) {
O << "static bool " << Target.getName() << ClassName
<< "ValidateMCOperand(\n"
<< " const MCOperand &MCOp, unsigned PredicateIndex) {\n"

2
utils/TableGen/CodeEmitterGen.cpp
View File

@ -96,7 +96,7 @@ AddCodeToMergeInOperand(Record *R, BitsInit *BI, const std::string &VarName,
/// generated emitter, skip it.
while (NumberedOp < NumberOps &&
(CGI.Operands.isFlatOperandNotEmitted(NumberedOp) ||
(NamedOpIndices.size() && NamedOpIndices.count(
(!NamedOpIndices.empty() && NamedOpIndices.count(
CGI.Operands.getSubOperandNumber(NumberedOp).first)))) {
++NumberedOp;

4
utils/TableGen/CodeGenMapTable.cpp
View File

@ -376,7 +376,7 @@ unsigned MapTableEmitter::emitBinSearchTable(raw_ostream &OS) {
std::vector<Record*> ColInstrs = MapTable[CurInstr];
std::string OutStr("");
unsigned RelExists = 0;
if (ColInstrs.size()) {
if (!ColInstrs.empty()) {
for (unsigned j = 0; j < NumCol; j++) {
if (ColInstrs[j] != nullptr) {
RelExists = 1;
@ -567,7 +567,7 @@ void EmitMapTable(RecordKeeper &Records, raw_ostream &OS) {
std::vector<Record*> InstrMapVec;
InstrMapVec = Records.getAllDerivedDefinitions("InstrMapping");
if (!InstrMapVec.size())
if (InstrMapVec.empty())
return;
OS << "#ifdef GET_INSTRMAP_INFO\n";

2
utils/TableGen/DFAPacketizerEmitter.cpp
View File

@ -472,7 +472,7 @@ void DFAPacketizerEmitter::run(raw_ostream &OS) {
current->canAddInsnClass(InsnClass)) {
const State *NewState;
current->AddInsnClass(InsnClass, NewStateResources);
assert(NewStateResources.size() && "New states must be generated");
assert(!NewStateResources.empty() && "New states must be generated");
//
// If we have seen this state before, then do not create a new state.

6
utils/TableGen/FixedLenDecoderEmitter.cpp
View File

@ -540,7 +540,7 @@ void Filter::recurse() {
// Starts by inheriting our parent filter chooser's filter bit values.
std::vector<bit_value_t> BitValueArray(Owner->FilterBitValues);
if (VariableInstructions.size()) {
if (!VariableInstructions.empty()) {
// Conservatively marks each segment position as BIT_UNSET.
for (unsigned bitIndex = 0; bitIndex < NumBits; ++bitIndex)
BitValueArray[StartBit + bitIndex] = BIT_UNSET;
@ -676,7 +676,7 @@ void Filter::emitTableEntry(DecoderTableInfo &TableInfo) const {
// Returns the number of fanout produced by the filter. More fanout implies
// the filter distinguishes more categories of instructions.
unsigned Filter::usefulness() const {
if (VariableInstructions.size())
if (!VariableInstructions.empty())
return FilteredInstructions.size();
else
return FilteredInstructions.size() + 1;
@ -1780,7 +1780,7 @@ static bool populateInstruction(CodeGenTarget &Target,
unsigned NumberOps = CGI.Operands.size();
while (NumberedOp < NumberOps &&
(CGI.Operands.isFlatOperandNotEmitted(NumberedOp) ||
(NamedOpIndices.size() && NamedOpIndices.count(
(!NamedOpIndices.empty() && NamedOpIndices.count(
CGI.Operands.getSubOperandNumber(NumberedOp).first))))
++NumberedOp;

2
utils/TableGen/SubtargetEmitter.cpp
View File

@ -404,7 +404,7 @@ EmitStageAndOperandCycleData(raw_ostream &OS,
OS << "}\n";
std::vector<Record*> BPs = PI->ItinsDef->getValueAsListOfDefs("BP");
if (BPs.size()) {
if (!BPs.empty()) {
OS << "\n// Pipeline forwarding pathes for itineraries \"" << Name
<< "\"\n" << "namespace " << Name << "Bypass {\n";

2
utils/TableGen/X86RecognizableInstr.cpp
View File

@ -514,7 +514,7 @@ void RecognizableInstr::emitInstructionSpecifier() {
assert(numOperands <= X86_MAX_OPERANDS && "X86_MAX_OPERANDS is not large enough");
for (unsigned operandIndex = 0; operandIndex < numOperands; ++operandIndex) {
if (OperandList[operandIndex].Constraints.size()) {
if (!OperandList[operandIndex].Constraints.empty()) {
const CGIOperandList::ConstraintInfo &Constraint =
OperandList[operandIndex].Constraints[0];
if (Constraint.isTied()) {