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Remove redundant string initialization (NFC) 

Identified with readability-redundant-string-init.
This commit is contained in:
Kazu Hirata 2021-12-26 09:39:26 -08:00
parent 7006d34ce7
commit 0542d15211
20 changed files with 28 additions and 28 deletions
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2
clang-tools-extra/clang-tidy/cert/LimitedRandomnessCheck.cpp
View File

@ -24,7 +24,7 @@ void LimitedRandomnessCheck::registerMatchers(MatchFinder *Finder) {
}
void LimitedRandomnessCheck::check(const MatchFinder::MatchResult &Result) {
std::string Msg = "";
std::string Msg;
if (getLangOpts().CPlusPlus)
Msg = "; use C++11 random library instead";

2
clang/lib/Basic/Targets/M68k.cpp
View File

@ -29,7 +29,7 @@ M68kTargetInfo::M68kTargetInfo(const llvm::Triple &Triple,
const TargetOptions &)
: TargetInfo(Triple) {
std::string Layout = "";
std::string Layout;
// M68k is Big Endian
Layout += "E";

2
clang/lib/Basic/Targets/PPC.h
View File

@ -414,7 +414,7 @@ public:
LongWidth = LongAlign = PointerWidth = PointerAlign = 64;
IntMaxType = SignedLong;
Int64Type = SignedLong;
std::string DataLayout = "";
std::string DataLayout;
if (Triple.isOSAIX()) {
// TODO: Set appropriate ABI for AIX platform.

4
clang/lib/CodeGen/CGOpenMPRuntime.cpp
View File

@ -1434,7 +1434,7 @@ llvm::Value *CGOpenMPRuntime::emitUpdateLocation(CodeGenFunction &CGF,
Loc.isInvalid()) {
SrcLocStr = OMPBuilder.getOrCreateDefaultSrcLocStr();
} else {
std::string FunctionName = "";
std::string FunctionName;
if (const auto *FD = dyn_cast_or_null<FunctionDecl>(CGF.CurFuncDecl))
FunctionName = FD->getQualifiedNameAsString();
PresumedLoc PLoc = CGF.getContext().getSourceManager().getPresumedLoc(Loc);
@ -9540,7 +9540,7 @@ emitMappingInformation(CodeGenFunction &CGF, llvm::OpenMPIRBuilder &OMPBuilder,
Loc = MapExprs.getMapDecl()->getLocation();
}
std::string ExprName = "";
std::string ExprName;
if (MapExprs.getMapExpr()) {
PrintingPolicy P(CGF.getContext().getLangOpts());
llvm::raw_string_ostream OS(ExprName);

4
clang/lib/Format/NamespaceEndCommentsFixer.cpp
View File

@ -28,7 +28,7 @@ std::string computeName(const FormatToken *NamespaceTok) {
assert(NamespaceTok &&
NamespaceTok->isOneOf(tok::kw_namespace, TT_NamespaceMacro) &&
"expecting a namespace token");
std::string name = "";
std::string name;
const FormatToken *Tok = NamespaceTok->getNextNonComment();
if (NamespaceTok->is(TT_NamespaceMacro)) {
// Collects all the non-comment tokens between opening parenthesis
@ -224,7 +224,7 @@ std::pair<tooling::Replacements, unsigned> NamespaceEndCommentsFixer::analyze(
return {Fixes, 0};
}
std::string AllNamespaceNames = "";
std::string AllNamespaceNames;
size_t StartLineIndex = SIZE_MAX;
StringRef NamespaceTokenText;
unsigned int CompactedNamespacesCount = 0;

2
clang/lib/Frontend/InitHeaderSearch.cpp
View File

@ -354,7 +354,7 @@ void InitHeaderSearch::AddDefaultCIncludePaths(const llvm::Triple &triple,
break;
case llvm::Triple::PS4: {
// <isysroot> gets prepended later in AddPath().
std::string BaseSDKPath = "";
std::string BaseSDKPath;
if (!HasSysroot) {
const char *envValue = getenv("SCE_ORBIS_SDK_DIR");
if (envValue)

2
clang/lib/StaticAnalyzer/Checkers/ReturnValueChecker.cpp
View File

@ -59,7 +59,7 @@ private:
} // namespace
static std::string getName(const CallEvent &Call) {
std::string Name = "";
std::string Name;
if (const auto *MD = dyn_cast<CXXMethodDecl>(Call.getDecl()))
if (const CXXRecordDecl *RD = MD->getParent())
Name += RD->getNameAsString() + "::";

2
clang/tools/clang-scan-deps/ClangScanDeps.cpp
View File

@ -470,7 +470,7 @@ int main(int argc, const char **argv) {
AdjustingCompilations->appendArgumentsAdjuster(
[&ResourceDirCache](const tooling::CommandLineArguments &Args,
StringRef FileName) {
std::string LastO = "";
std::string LastO;
bool HasResourceDir = false;
bool ClangCLMode = false;
auto FlagsEnd = llvm::find(Args, "--");

2
clang/utils/TableGen/NeonEmitter.cpp
View File

@ -1473,7 +1473,7 @@ Intrinsic::DagEmitter::emitDagCall(DagInit *DI, bool MatchMangledName) {
Intr.Dependencies.insert(&Callee);
// Now create the call itself.
std::string S = "";
std::string S;
if (!Callee.isBigEndianSafe())
S += CallPrefix.str();
S += Callee.getMangledName(true) + "(";

2
lldb/source/Commands/CommandCompletions.cpp
View File

@ -600,7 +600,7 @@ void CommandCompletions::VariablePath(CommandInterpreter &interpreter,
void CommandCompletions::Registers(CommandInterpreter &interpreter,
CompletionRequest &request,
SearchFilter *searcher) {
std::string reg_prefix = "";
std::string reg_prefix;
if (request.GetCursorArgumentPrefix().startswith("$"))
reg_prefix = "$";

2
lldb/source/Plugins/Disassembler/LLVMC/DisassemblerLLVMC.cpp
View File

@ -1111,7 +1111,7 @@ DisassemblerLLVMC::DisassemblerLLVMC(const ArchSpec &arch,
triple.getSubArch() == llvm::Triple::NoSubArch)
triple.setArchName("armv8.7a");
std::string features_str = "";
std::string features_str;
const char *triple_str = triple.getTriple().c_str();
// ARM Cortex M0-M7 devices only execute thumb instructions

2
lldb/source/Plugins/Instruction/MIPS/EmulateInstructionMIPS.cpp
View File

@ -137,7 +137,7 @@ EmulateInstructionMIPS::EmulateInstructionMIPS(
break;
}
std::string features = "";
std::string features;
uint32_t arch_flags = arch.GetFlags();
if (arch_flags & ArchSpec::eMIPSAse_msa)
features += "+msa,";

2
lldb/source/Plugins/Instruction/MIPS64/EmulateInstructionMIPS64.cpp
View File

@ -137,7 +137,7 @@ EmulateInstructionMIPS64::EmulateInstructionMIPS64(
break;
}
std::string features = "";
std::string features;
uint32_t arch_flags = arch.GetFlags();
if (arch_flags & ArchSpec::eMIPSAse_msa)
features += "+msa,";

6
lldb/source/Plugins/InstrumentationRuntime/MainThreadChecker/InstrumentationRuntimeMainThreadChecker.cpp
View File

@ -100,14 +100,14 @@ InstrumentationRuntimeMainThreadChecker::RetrieveReportData(
if (!apiname_ptr)
return StructuredData::ObjectSP();
std::string apiName = "";
std::string apiName;
Status read_error;
target.ReadCStringFromMemory(apiname_ptr, apiName, read_error);
if (read_error.Fail())
return StructuredData::ObjectSP();
std::string className = "";
std::string selector = "";
std::string className;
std::string selector;
if (apiName.substr(0, 2) == "-[") {
size_t spacePos = apiName.find(' ');
if (spacePos != std::string::npos) {

6
lldb/source/Plugins/InstrumentationRuntime/TSan/InstrumentationRuntimeTSan.cpp
View File

@ -711,7 +711,7 @@ addr_t InstrumentationRuntimeTSan::GetMainRacyAddress(
std::string InstrumentationRuntimeTSan::GetLocationDescription(
StructuredData::ObjectSP report, addr_t &global_addr,
std::string &global_name, std::string &filename, uint32_t &line) {
std::string result = "";
std::string result;
ProcessSP process_sp = GetProcessSP();
@ -820,8 +820,8 @@ bool InstrumentationRuntimeTSan::NotifyBreakpointHit(
report->GetAsDictionary()->AddIntegerItem("memory_address", main_address);
addr_t global_addr = 0;
std::string global_name = "";
std::string location_filename = "";
std::string global_name;
std::string location_filename;
uint32_t location_line = 0;
std::string location_description = instance->GetLocationDescription(
report, global_addr, global_name, location_filename, location_line);

2
lldb/source/Plugins/ObjectFile/Minidump/MinidumpFileBuilder.cpp
View File

@ -115,7 +115,7 @@ Status MinidumpFileBuilder::AddSystemInfo(const llvm::Triple &target_triple) {
sys_info.PlatformId = platform_id;
m_data.AppendData(&sys_info, sizeof(llvm::minidump::SystemInfo));
std::string csd_string = "";
std::string csd_string;
error = WriteString(csd_string, &m_data);
if (error.Fail()) {

2
lldb/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.cpp
View File

@ -693,7 +693,7 @@ const UnixSignalsSP &PlatformRemoteGDBServer::GetRemoteUnixSignals() {
if (object_sp && object_sp->IsValid())
notify = object_sp->GetBooleanValue();
std::string description{""};
std::string description;
object_sp = dict->GetValueForKey("description");
if (object_sp && object_sp->IsValid())
description = std::string(object_sp->GetStringValue());

2
lldb/source/Target/RegisterContextUnwind.cpp
View File

@ -1509,7 +1509,7 @@ RegisterContextUnwind::SavedLocationForRegister(
regnum.GetName(), regnum.GetAsKind(eRegisterKindLLDB));
return UnwindLLDB::RegisterSearchResult::eRegisterFound;
} else {
std::string unwindplan_name("");
std::string unwindplan_name;
if (m_full_unwind_plan_sp) {
unwindplan_name += "via '";
unwindplan_name += m_full_unwind_plan_sp->GetSourceName().AsCString();

2
llvm/lib/DebugInfo/DWARF/DWARFDebugAbbrev.cpp
View File

@ -74,7 +74,7 @@ std::string DWARFAbbreviationDeclarationSet::getCodeRange() const {
for (const auto &Decl : Decls)
Codes.push_back(Decl.getCode());
std::string Buffer = "";
std::string Buffer;
raw_string_ostream Stream(Buffer);
// Each iteration through this loop represents a single contiguous range in
// the set of codes.

6
llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
View File

@ -410,7 +410,7 @@ void AMDGPUTargetID::setTargetIDFromTargetIDStream(StringRef TargetID) {
}
std::string AMDGPUTargetID::toString() const {
std::string StringRep = "";
std::string StringRep;
raw_string_ostream StreamRep(StringRep);
auto TargetTriple = STI.getTargetTriple();
@ -421,7 +421,7 @@ std::string AMDGPUTargetID::toString() const {
<< TargetTriple.getOSName() << '-'
<< TargetTriple.getEnvironmentName() << '-';
std::string Processor = "";
std::string Processor;
// TODO: Following else statement is present here because we used various
// alias names for GPUs up until GFX9 (e.g. 'fiji' is same as 'gfx803').
// Remove once all aliases are removed from GCNProcessors.td.
@ -432,7 +432,7 @@ std::string AMDGPUTargetID::toString() const {
Twine(Version.Stepping))
.str();
std::string Features = "";
std::string Features;
if (Optional<uint8_t> HsaAbiVersion = getHsaAbiVersion(&STI)) {
switch (*HsaAbiVersion) {
case ELF::ELFABIVERSION_AMDGPU_HSA_V2: