This is an archive of the discontinued LLVM Phabricator instance.

Differential D25639

Add ctor for string literal to StringRef, and make explicit the conversion from const char *
AbandonedPublic

Authored by mehdi_amini on Oct 14 2016, 6:07 PM.

Details

Reviewers
pete
• tstellarAMD
zturner
dexonsmith
Summary

The implicit conversion from const char * to StringRef involve calling strlen.
Having "expensive" calls happening implicitly with a class like StringRef which
is supposed to be a lightweight wrapper does not seem like a good idea to me.
I already landed over 30 patches converting multiple APIs to use StringRef, this
is the last one.

Making the conversion explicit allows to have a constexpr constructor for string
literals (or literal char arrays), making global tables of StringRef possible
without needing a static initializer.

After this series of patches, an LTO link of llvm-tblgen is calling ~1.5M times
strlen() vs over 11M before.

A frequent pattern I found that making this constructor explicit helps avoiding
is a conversion from std::string or StringRef to const char * back to
StringRef, often in a single expression. For Example:

llvm::SmallString<256> CleanPath(Entry.first.data());

Removing the .data() avoids a call to strlen.

Most of the call sites here have been updated with a simple clang-tidy check,
with some manual tweaking when needed.

Here is the check if anyone needs to update some codebase downstream:

void StringrefCheck::registerMatchers(MatchFinder *Finder) {

Finder->addMatcher(
    materializeTemporaryExpr(
        hasType(namedDecl(hasName("llvm::StringRef"))),
        has(expr(ignoringImpCasts(cxxConstructExpr(
            argumentCountIs(1),
            hasArgument(0, expr(hasType(pointsTo(isAnyCharacter())))))))))
        .bind("imp_conv"),
    this);

}
void StringrefCheck::check(const MatchFinder::MatchResult &Result) {

const auto *MatchedCtor =
    Result.Nodes.getNodeAs<MaterializeTemporaryExpr>("imp_conv");
const auto FixCondStart = FixItHint::CreateInsertion(
    MatchedCtor->getLocStart(), "llvm::StringRef(");
const auto FixCondEnd = FixItHint::CreateInsertion(
    Lexer::getLocForEndOfToken(MatchedCtor->getLocEnd(), 0,
                               *Result.SourceManager,
                               Result.Context->getLangOpts()),
    ")");

auto Diag = diag(MatchedCtor->getExprLoc(), "Explicit StringRef ctor:");
Diag << FixCondStart << FixCondEnd;

}

Diff Detail

Event Timeline

mehdi_amini updated this revision to Diff 74762.Oct 14 2016, 6:07 PM
mehdi_amini retitled this revision from to Add ctor for string literal to StringRef, and make explicit the conversion from const char *.
mehdi_amini updated this object.
mehdi_amini added reviewers: dexonsmith, zturner, pete.
mehdi_amini added a subscriber: llvm-commits.
Herald added a reviewer: • tstellarAMD. · View Herald TranscriptOct 14 2016, 6:07 PM
Herald added subscribers: nhaehnle, ki.stfu, nemanjai and 11 others. · View Herald Transcript
mehdi_amini added a comment.Oct 14 2016, 6:08 PM

Note: the patch is without context because otherwise it is too large for Phab.

grandinj added a subscriber: grandinj.Oct 14 2016, 11:00 PM

You might like to take a look at the ConstCharArrayDetector stuff in the LibreOffice codebase here:

https://cgit.freedesktop.org/libreoffice/core/tree/include/rtl/ustring.hxx

where Stephan Bergman has implemented optimisations to avoid calling strlen() at runtime when dealing with static const char arrays.

As far as I know, clang will compute strlen() at compile time if it knows the string being passed is a static constant

malcolm.parsons updated this object.Oct 15 2016, 10:21 AM
malcolm.parsons edited edge metadata.
zturner edited edge metadata.Oct 16 2016, 8:42 PM

The only thing I'm not crazy about here is that the clang tidy check seems to blindly replace all calls to s.c_str() with llvm::StringRef(s.c_str()). Is there any way to make it attempt to replace it with just s first, and only if that fails do you then try llvm::StringRef(s.c_str())?

mehdi_amini added a comment.Oct 16 2016, 8:44 PM

"Maybe"?
(I've never wrote anything with clang-tidy before, so I'm not sure I could do it by myself right now)

mehdi_amini mentioned this in D25667: Fix call sites with spurious .c_str() calls from explicit StringRef conversion (NFC).Oct 16 2016, 11:07 PM
mehdi_amini added a child revision: D25667: Fix call sites with spurious .c_str() calls from explicit StringRef conversion (NFC).Oct 16 2016, 11:07 PM
klimek added a comment.Oct 16 2016, 11:43 PM
In D25639#571344, @zturner wrote:

The only thing I'm not crazy about here is that the clang tidy check seems to blindly replace all calls to s.c_str() with llvm::StringRef(s.c_str()). Is there any way to make it attempt to replace it with just s first, and only if that fails do you then try llvm::StringRef(s.c_str())?

Shouldn't it be relatively straight forward to discover whether the expression is convertible to StringRef without the .c_str() call from an AST matcher?

mehdi_amini abandoned this revision.Oct 27 2016, 2:17 PM

Abandon the changes to StringRef.

mehdi_amini mentioned this in D25257: Use StringRef in Option library instead of raw pointers (NFC).Oct 27 2016, 2:18 PM
malcolm.parsons mentioned this in D26332: Add a user-defined literal for StringRef.Nov 6 2016, 1:02 AM

Large Diff

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Diff 74762

clang-tools-extra/change-namespace/tool/ClangChangeNamespace.cpp

clang-tools-extra/clang-apply-replacements/tool/ClangApplyReplacementsMain.cpp

clang-tools-extra/clang-move/tool/ClangMoveMain.cpp

clang-tools-extra/clang-query/tool/ClangQuery.cpp

clang-tools-extra/clang-tidy/ClangTidy.cpp

clang-tools-extra/clang-tidy/cppcoreguidelines/ProTypeMemberInitCheck.cpp

clang-tools-extra/clang-tidy/misc/FoldInitTypeCheck.cpp

clang-tools-extra/clang-tidy/misc/NonCopyableObjects.cpp

clang-tools-extra/clang-tidy/misc/StringIntegerAssignmentCheck.cpp

clang-tools-extra/clang-tidy/misc/ThrowByValueCatchByReferenceCheck.cpp

clang-tools-extra/clang-tidy/misc/UnconventionalAssignOperatorCheck.cpp

clang-tools-extra/clang-tidy/misc/UnusedRAIICheck.cpp

clang-tools-extra/clang-tidy/modernize/LoopConvertCheck.cpp

clang-tools-extra/clang-tidy/modernize/MakeSharedCheck.cpp

clang-tools-extra/clang-tidy/modernize/MakeUniqueCheck.cpp

clang-tools-extra/clang-tidy/modernize/RedundantVoidArgCheck.cpp

clang-tools-extra/clang-tidy/modernize/UseAutoCheck.cpp

clang-tools-extra/clang-tidy/modernize/UseBoolLiteralsCheck.cpp

clang-tools-extra/clang-tidy/modernize/UseEmplaceCheck.cpp

clang-tools-extra/clang-tidy/modernize/UseNullptrCheck.cpp

clang-tools-extra/clang-tidy/modernize/UseOverrideCheck.cpp

clang-tools-extra/clang-tidy/performance/InefficientStringConcatenationCheck.cpp

clang-tools-extra/clang-tidy/performance/UnnecessaryCopyInitialization.cpp

clang-tools-extra/clang-tidy/performance/UnnecessaryValueParamCheck.cpp

clang-tools-extra/clang-tidy/readability/ElseAfterReturnCheck.cpp

clang-tools-extra/clang-tidy/readability/IdentifierNamingCheck.cpp

clang-tools-extra/clang-tidy/readability/ImplicitBoolCastCheck.cpp

clang-tools-extra/clang-tidy/readability/RedundantControlFlowCheck.cpp

clang-tools-extra/clang-tidy/readability/SimplifyBooleanExprCheck.cpp

clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp

clang-tools-extra/clang-tidy/utils/HeaderFileExtensionsUtils.cpp

clang-tools-extra/clang-tidy/utils/IncludeSorter.cpp

clang-tools-extra/include-fixer/find-all-symbols/HeaderMapCollector.cpp

clang-tools-extra/include-fixer/find-all-symbols/tool/FindAllSymbolsMain.cpp

clang-tools-extra/modularize/Modularize.cpp

clang-tools-extra/modularize/ModuleAssistant.cpp

clang-tools-extra/modularize/PreprocessorTracker.cpp

clang-tools-extra/pp-trace/PPCallbacksTracker.cpp

clang-tools-extra/tool-template/ToolTemplate.cpp

clang-tools-extra/unittests/clang-tidy/IncludeInserterTest.cpp

clang/examples/clang-interpreter/main.cpp

clang/include/clang/AST/Comment.h

clang/include/clang/AST/Decl.h

clang/include/clang/Basic/SourceManager.h

clang/include/clang/Serialization/ASTReader.h

clang/include/clang/StaticAnalyzer/Core/BugReporter/BugType.h

clang/include/clang/StaticAnalyzer/Core/BugReporter/PathDiagnostic.h

clang/lib/ARCMigrate/ObjCMT.cpp

clang/lib/ARCMigrate/TransBlockObjCVariable.cpp

clang/lib/ARCMigrate/TransProperties.cpp

clang/lib/ARCMigrate/Transforms.cpp

clang/lib/AST/ASTContext.cpp

clang/lib/AST/ASTTypeTraits.cpp

clang/lib/AST/CommentCommandTraits.cpp

clang/lib/AST/CommentLexer.cpp

clang/lib/AST/CommentParser.cpp

clang/lib/AST/CommentSema.cpp

clang/lib/AST/Decl.cpp

clang/lib/AST/ItaniumMangle.cpp

clang/lib/AST/MicrosoftMangle.cpp

clang/lib/AST/NSAPI.cpp

clang/lib/AST/Type.cpp

clang/lib/ASTMatchers/Dynamic/Parser.cpp

clang/lib/Basic/Diagnostic.cpp

clang/lib/Basic/FileManager.cpp

clang/lib/Basic/FileSystemStatCache.cpp

clang/lib/Basic/IdentifierTable.cpp

clang/lib/Basic/TargetInfo.cpp

clang/lib/Basic/Targets.cpp

clang/lib/Basic/Warnings.cpp

clang/lib/CodeGen/BackendUtil.cpp

clang/lib/CodeGen/CGBlocks.cpp

clang/lib/CodeGen/CGBuiltin.cpp

clang/lib/CodeGen/CGClass.cpp

clang/lib/CodeGen/CGDebugInfo.cpp

clang/lib/CodeGen/CGDeclCXX.cpp

clang/lib/CodeGen/CGException.cpp

clang/lib/CodeGen/CGExpr.cpp

clang/lib/CodeGen/CGObjCGNU.cpp

clang/lib/CodeGen/CGObjCMac.cpp

clang/lib/CodeGen/CGOpenMPRuntime.cpp

clang/lib/CodeGen/CodeGenFunction.cpp

clang/lib/CodeGen/CodeGenModule.cpp

clang/lib/CodeGen/ItaniumCXXABI.cpp

clang/lib/CodeGen/MicrosoftCXXABI.cpp

clang/lib/CodeGen/TargetInfo.cpp

clang/lib/Driver/Compilation.cpp

clang/lib/Driver/Driver.cpp

clang/lib/Driver/Job.cpp

clang/lib/Driver/MinGWToolChain.cpp

clang/lib/Driver/Multilib.cpp

clang/lib/Driver/ToolChain.cpp

clang/lib/Driver/ToolChains.cpp

clang/lib/Driver/Tools.cpp

clang/lib/Driver/Types.cpp

clang/lib/Format/BreakableToken.cpp

clang/lib/Frontend/ASTUnit.cpp

clang/lib/Frontend/CompilerInstance.cpp

clang/lib/Frontend/CompilerInvocation.cpp

clang/lib/Frontend/DependencyFile.cpp

clang/lib/Frontend/FrontendActions.cpp

clang/lib/Frontend/HeaderIncludeGen.cpp

clang/lib/Frontend/InitPreprocessor.cpp

clang/lib/Frontend/PrintPreprocessedOutput.cpp

clang/lib/Frontend/Rewrite/RewriteMacros.cpp

clang/lib/Frontend/Rewrite/RewriteModernObjC.cpp

clang/lib/Frontend/Rewrite/RewriteObjC.cpp

clang/lib/Frontend/SerializedDiagnosticPrinter.cpp

clang/lib/Frontend/TextDiagnostic.cpp

clang/lib/Lex/HeaderSearch.cpp

clang/lib/Lex/Lexer.cpp

clang/lib/Lex/PPDirectives.cpp

clang/lib/Lex/PPMacroExpansion.cpp

clang/lib/Lex/PTHLexer.cpp

clang/lib/Lex/Pragma.cpp

clang/lib/Parse/ParseCXXInlineMethods.cpp

clang/lib/Parse/ParseDecl.cpp

clang/lib/Parse/ParseDeclCXX.cpp

clang/lib/Parse/ParseExpr.cpp

clang/lib/Parse/ParseExprCXX.cpp

clang/lib/Parse/ParseObjc.cpp

clang/lib/Parse/ParseOpenMP.cpp

clang/lib/Parse/ParsePragma.cpp

clang/lib/Parse/ParseStmt.cpp

clang/lib/Parse/ParseTemplate.cpp

clang/lib/Parse/Parser.cpp

clang/lib/Rewrite/HTMLRewrite.cpp

clang/lib/Sema/AnalysisBasedWarnings.cpp

clang/lib/Sema/CodeCompleteConsumer.cpp

clang/lib/Sema/DeclSpec.cpp

clang/lib/Sema/SemaChecking.cpp

clang/lib/Sema/SemaCodeComplete.cpp

clang/lib/Sema/SemaDecl.cpp

clang/lib/Sema/SemaDeclAttr.cpp

clang/lib/Sema/SemaDeclCXX.cpp

clang/lib/Sema/SemaDeclObjC.cpp

clang/lib/Sema/SemaExpr.cpp

clang/lib/Sema/SemaExprObjC.cpp

clang/lib/Sema/SemaLookup.cpp

clang/lib/Sema/SemaObjCProperty.cpp

clang/lib/Sema/SemaOpenMP.cpp

clang/lib/Sema/SemaStmt.cpp

clang/lib/Sema/SemaTemplateInstantiateDecl.cpp

clang/lib/Sema/SemaType.cpp

clang/lib/Serialization/ASTReader.cpp

clang/lib/StaticAnalyzer/Checkers/BasicObjCFoundationChecks.cpp

clang/lib/StaticAnalyzer/Checkers/CStringChecker.cpp

clang/lib/StaticAnalyzer/Checkers/CallAndMessageChecker.cpp

clang/lib/StaticAnalyzer/Checkers/CastToStructChecker.cpp

clang/lib/StaticAnalyzer/Checkers/CheckObjCDealloc.cpp

clang/lib/StaticAnalyzer/Checkers/CheckObjCInstMethSignature.cpp

clang/lib/StaticAnalyzer/Checkers/CheckSecuritySyntaxOnly.cpp

clang/lib/StaticAnalyzer/Checkers/CheckSizeofPointer.cpp

clang/lib/StaticAnalyzer/Checkers/ConversionChecker.cpp

clang/lib/StaticAnalyzer/Checkers/DeadStoresChecker.cpp

clang/lib/StaticAnalyzer/Checkers/DirectIvarAssignment.cpp

clang/lib/StaticAnalyzer/Checkers/DivZeroChecker.cpp

clang/lib/StaticAnalyzer/Checkers/DynamicTypePropagation.cpp

clang/lib/StaticAnalyzer/Checkers/ExprInspectionChecker.cpp

clang/lib/StaticAnalyzer/Checkers/GenericTaintChecker.cpp

clang/lib/StaticAnalyzer/Checkers/IdenticalExprChecker.cpp

clang/lib/StaticAnalyzer/Checkers/IvarInvalidationChecker.cpp

clang/lib/StaticAnalyzer/Checkers/LLVMConventionsChecker.cpp

clang/lib/StaticAnalyzer/Checkers/MacOSKeychainAPIChecker.cpp

clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp

clang/lib/StaticAnalyzer/Checkers/MallocOverflowSecurityChecker.cpp

clang/lib/StaticAnalyzer/Checkers/MallocSizeofChecker.cpp

clang/lib/StaticAnalyzer/Checkers/NSErrorChecker.cpp

clang/lib/StaticAnalyzer/Checkers/ObjCContainersASTChecker.cpp

clang/lib/StaticAnalyzer/Checkers/ObjCContainersChecker.cpp

clang/lib/StaticAnalyzer/Checkers/ObjCMissingSuperCallChecker.cpp

clang/lib/StaticAnalyzer/Checkers/ObjCSelfInitChecker.cpp

clang/lib/StaticAnalyzer/Checkers/ObjCSuperDeallocChecker.cpp

clang/lib/StaticAnalyzer/Checkers/RetainCountChecker.cpp

clang/lib/StaticAnalyzer/Checkers/SelectorExtras.h

clang/lib/StaticAnalyzer/Checkers/UndefinedAssignmentChecker.cpp

clang/lib/StaticAnalyzer/Checkers/UnixAPIChecker.cpp

clang/lib/StaticAnalyzer/Checkers/ValistChecker.cpp

clang/lib/StaticAnalyzer/Checkers/VforkChecker.cpp

clang/lib/StaticAnalyzer/Core/AnalyzerOptions.cpp

clang/lib/StaticAnalyzer/Core/BugReporter.cpp

clang/lib/StaticAnalyzer/Core/BugReporterVisitors.cpp

clang/lib/StaticAnalyzer/Core/ExprEngine.cpp

clang/lib/StaticAnalyzer/Frontend/CheckerRegistration.cpp

clang/lib/Tooling/CommonOptionsParser.cpp

clang/lib/Tooling/CompilationDatabase.cpp

clang/lib/Tooling/Core/Replacement.cpp

clang/lib/Tooling/Tooling.cpp

clang/tools/arcmt-test/arcmt-test.cpp

clang/tools/c-index-test/core_main.cpp

clang/tools/clang-check/ClangCheck.cpp

clang/tools/clang-format/ClangFormat.cpp

clang/tools/clang-offload-bundler/ClangOffloadBundler.cpp

clang/tools/diagtool/TreeView.cpp

clang/tools/diagtool/diagtool_main.cpp

clang/tools/driver/driver.cpp

clang/tools/libclang/ARCMigrate.cpp

clang/tools/libclang/BuildSystem.cpp

clang/tools/libclang/CIndex.cpp

clang/tools/libclang/CIndexCodeCompletion.cpp

clang/tools/libclang/CIndexUSRs.cpp

clang/tools/libclang/CIndexer.cpp

clang/tools/libclang/CXCompilationDatabase.cpp

clang/tools/libclang/CXLoadedDiagnostic.cpp

clang/tools/libclang/CXType.cpp

clang/tools/libclang/Indexing.cpp

clang/unittests/AST/ASTImporterTest.cpp

clang/unittests/AST/CommentLexer.cpp

clang/unittests/AST/CommentParser.cpp

clang/unittests/AST/DeclPrinterTest.cpp

clang/unittests/Basic/FileManagerTest.cpp

clang/unittests/Basic/SourceManagerTest.cpp

clang/unittests/Lex/PPCallbacksTest.cpp

clang/unittests/Lex/PPConditionalDirectiveRecordTest.cpp

clang/unittests/Tooling/CommentHandlerTest.cpp

clang/unittests/Tooling/RecursiveASTVisitorTestCallVisitor.cpp

clang/utils/TableGen/ClangAttrEmitter.cpp

clang/utils/TableGen/TableGen.cpp

lld/COFF/Driver.cpp

lld/COFF/DriverUtils.cpp

lld/ELF/Driver.cpp

lld/ELF/Mips.cpp

lld/ELF/OutputSections.cpp

lld/ELF/Relocations.cpp

lld/ELF/Writer.cpp

lld/lib/ReaderWriter/MachO/LayoutPass.cpp

lld/lib/ReaderWriter/MachO/MachOLinkingContext.cpp

lld/lib/ReaderWriter/MachO/MachONormalizedFileBinaryReader.cpp

lld/lib/ReaderWriter/MachO/MachONormalizedFileBinaryUtils.h

lld/lib/ReaderWriter/MachO/MachONormalizedFileFromAtoms.cpp

lld/lib/ReaderWriter/MachO/MachONormalizedFileToAtoms.cpp

lld/lib/ReaderWriter/MachO/StubsPass.cpp

lld/tools/lld/lld.cpp

lldb/include/lldb/Expression/IRExecutionUnit.h

lldb/include/lldb/Interpreter/CommandObject.h

lldb/include/lldb/Symbol/ClangASTContext.h

lldb/include/lldb/Target/Process.h

lldb/include/lldb/Utility/AnsiTerminal.h

lldb/source/API/SBAttachInfo.cpp

lldb/source/API/SBCommandInterpreter.cpp

lldb/source/API/SBDebugger.cpp

lldb/source/API/SBFileSpec.cpp

lldb/source/API/SBHostOS.cpp

lldb/source/API/SBLaunchInfo.cpp

lldb/source/API/SBModuleSpec.cpp

lldb/source/API/SBPlatform.cpp

lldb/source/API/SBProcess.cpp

lldb/source/API/SBTarget.cpp

lldb/source/API/SBThread.cpp

lldb/source/Breakpoint/Breakpoint.cpp

lldb/source/Breakpoint/BreakpointIDList.cpp

lldb/source/Breakpoint/BreakpointLocation.cpp

lldb/source/Breakpoint/BreakpointOptions.cpp

lldb/source/Breakpoint/BreakpointResolver.cpp

lldb/source/Breakpoint/BreakpointResolverAddress.cpp

lldb/source/Breakpoint/BreakpointResolverFileLine.cpp

lldb/source/Breakpoint/BreakpointResolverFileRegex.cpp

lldb/source/Breakpoint/BreakpointResolverName.cpp

lldb/source/Commands/CommandCompletions.cpp

lldb/source/Commands/CommandObjectBreakpoint.cpp

lldb/source/Commands/CommandObjectBreakpointCommand.cpp

lldb/source/Commands/CommandObjectCommands.cpp

lldb/source/Commands/CommandObjectFrame.cpp

lldb/source/Commands/CommandObjectHelp.cpp

lldb/source/Commands/CommandObjectLog.cpp

lldb/source/Commands/CommandObjectMultiword.cpp

lldb/source/Commands/CommandObjectPlatform.cpp

lldb/source/Commands/CommandObjectPlugin.cpp

lldb/source/Commands/CommandObjectProcess.cpp

lldb/source/Commands/CommandObjectSettings.cpp

lldb/source/Commands/CommandObjectSource.cpp

lldb/source/Commands/CommandObjectSyntax.cpp

lldb/source/Commands/CommandObjectTarget.cpp

lldb/source/Commands/CommandObjectThread.cpp

lldb/source/Commands/CommandObjectType.cpp

lldb/source/Commands/CommandObjectWatchpoint.cpp

lldb/source/Core/Address.cpp

lldb/source/Core/ArchSpec.cpp

lldb/source/Core/Broadcaster.cpp

lldb/source/Core/ConstString.cpp

lldb/source/Core/Debugger.cpp

lldb/source/Core/Disassembler.cpp

lldb/source/Core/DynamicLoader.cpp

lldb/source/Core/FileSpecList.cpp

lldb/source/Core/FormatEntity.cpp

lldb/source/Core/IOHandler.cpp

lldb/source/Core/Log.cpp

lldb/source/Core/Mangled.cpp

lldb/source/Core/Module.cpp

lldb/source/Core/ModuleList.cpp

lldb/source/Core/Scalar.cpp

lldb/source/Core/SearchFilter.cpp

lldb/source/Core/Stream.cpp

lldb/source/Core/StringList.cpp

lldb/source/Core/StructuredData.cpp

lldb/source/Core/ValueObject.cpp

lldb/source/DataFormatters/TypeSummary.cpp

lldb/source/DataFormatters/ValueObjectPrinter.cpp

lldb/source/Expression/DWARFExpression.cpp

lldb/source/Expression/IRExecutionUnit.cpp

lldb/source/Expression/REPL.cpp

lldb/source/Host/common/FileSpec.cpp

lldb/source/Host/common/Host.cpp

lldb/source/Host/common/HostNativeThreadBase.cpp

lldb/source/Host/common/Symbols.cpp

lldb/source/Host/common/ThisThread.cpp

lldb/source/Host/common/TimeValue.cpp

lldb/source/Host/common/XML.cpp

lldb/source/Host/macosx/Host.mm

lldb/source/Host/macosx/HostInfoMacOSX.mm

lldb/source/Host/macosx/Symbols.cpp

lldb/source/Host/posix/ConnectionFileDescriptorPosix.cpp

lldb/source/Host/posix/FileSystem.cpp

lldb/source/Host/posix/PipePosix.cpp

lldb/source/Interpreter/Args.cpp

lldb/source/Interpreter/CommandInterpreter.cpp

lldb/source/Interpreter/CommandObject.cpp

lldb/source/Interpreter/CommandObjectRegexCommand.cpp

lldb/source/Interpreter/CommandReturnObject.cpp

lldb/source/Interpreter/OptionValueArch.cpp

lldb/source/Interpreter/OptionValueArray.cpp

lldb/source/Interpreter/OptionValueBoolean.cpp

lldb/source/Interpreter/OptionValueDictionary.cpp

lldb/source/Interpreter/OptionValueEnumeration.cpp

lldb/source/Interpreter/OptionValueFileSpec.cpp

lldb/source/Interpreter/OptionValueFileSpecLIst.cpp

lldb/source/Interpreter/OptionValueFormat.cpp

lldb/source/Interpreter/OptionValueLanguage.cpp

lldb/source/Interpreter/OptionValuePathMappings.cpp

lldb/source/Interpreter/OptionValueProperties.cpp

lldb/source/Interpreter/Options.cpp

lldb/source/Interpreter/Property.cpp

lldb/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.cpp

lldb/source/Plugins/DynamicLoader/Darwin-Kernel/DynamicLoaderDarwinKernel.cpp

lldb/source/Plugins/DynamicLoader/Hexagon-DYLD/DynamicLoaderHexagonDYLD.cpp

lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.cpp

lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderMacOSXDYLD.cpp

lldb/source/Plugins/ExpressionParser/Clang/ASTDumper.cpp

lldb/source/Plugins/ExpressionParser/Clang/ClangASTSource.cpp

lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp

lldb/source/Plugins/ExpressionParser/Clang/ClangModulesDeclVendor.cpp

lldb/source/Plugins/ExpressionParser/Clang/IRForTarget.cpp

lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCDeclVendor.cpp

lldb/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.cpp

lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp

lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp

lldb/source/Plugins/Platform/Android/PlatformAndroid.cpp

lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.cpp

lldb/source/Plugins/Platform/Kalimba/PlatformKalimba.cpp

lldb/source/Plugins/Platform/Linux/PlatformLinux.cpp

lldb/source/Plugins/Platform/MacOSX/PlatformAppleSimulator.cpp

lldb/source/Plugins/Platform/MacOSX/PlatformAppleTVSimulator.cpp

lldb/source/Plugins/Platform/MacOSX/PlatformAppleWatchSimulator.cpp

lldb/source/Plugins/Platform/MacOSX/PlatformDarwin.cpp

lldb/source/Plugins/Platform/MacOSX/PlatformDarwinKernel.cpp

lldb/source/Plugins/Platform/MacOSX/PlatformMacOSX.cpp

lldb/source/Plugins/Platform/MacOSX/PlatformRemoteAppleTV.cpp

lldb/source/Plugins/Platform/MacOSX/PlatformRemoteAppleWatch.cpp

lldb/source/Plugins/Platform/MacOSX/PlatformRemoteiOS.cpp

lldb/source/Plugins/Platform/MacOSX/PlatformiOSSimulator.cpp

lldb/source/Plugins/Platform/MacOSX/PlatformiOSSimulatorCoreSimulatorSupport.mm

lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.cpp

lldb/source/Plugins/Platform/Windows/PlatformWindows.cpp

lldb/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.cpp

lldb/source/Plugins/Process/MacOSX-Kernel/CommunicationKDP.cpp

lldb/source/Plugins/Process/Utility/StopInfoMachException.cpp

lldb/source/Plugins/Process/elf-core/ProcessElfCore.cpp

lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp

lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp

lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp

lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp

lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerPlatform.cpp

lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp

lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.cpp

lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp

lldb/source/Plugins/StructuredData/DarwinLog/StructuredDataDarwinLog.cpp

lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.cpp

lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugLine.cpp

lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugMacinfoEntry.cpp

lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugPubnamesSet.cpp

lldb/source/Plugins/SymbolFile/DWARF/HashedNameToDIE.cpp

lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp

lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp

lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp

lldb/source/Plugins/SymbolVendor/MacOSX/SymbolVendorMacOSX.cpp

lldb/source/Symbol/ClangASTContext.cpp

lldb/source/Symbol/CompileUnit.cpp

lldb/source/Symbol/Function.cpp

lldb/source/Symbol/GoASTContext.cpp

lldb/source/Symbol/ObjectFile.cpp

lldb/source/Symbol/Symbol.cpp

lldb/source/Symbol/SymbolContext.cpp

lldb/source/Symbol/Symtab.cpp

lldb/source/Symbol/UnwindPlan.cpp

lldb/source/Symbol/Variable.cpp

lldb/source/Target/FileAction.cpp

lldb/source/Target/InstrumentationRuntime.cpp

lldb/source/Target/Language.cpp

lldb/source/Target/PathMappingList.cpp

lldb/source/Target/Platform.cpp

lldb/source/Target/Process.cpp

lldb/source/Target/ProcessInfo.cpp

lldb/source/Target/ProcessLaunchInfo.cpp

lldb/source/Target/StackFrame.cpp

lldb/source/Target/StopInfo.cpp

lldb/source/Target/Target.cpp

lldb/source/Target/TargetList.cpp

lldb/source/Target/ThreadPlanCallFunction.cpp

lldb/source/Target/ThreadPlanStepInRange.cpp

lldb/source/Target/ThreadSpec.cpp

lldb/source/Utility/ModuleCache.cpp

lldb/tools/lldb-mi/MICmdCmdData.cpp

lldb/tools/lldb-mi/MICmdCmdSymbol.cpp

lldb/tools/lldb-server/lldb-gdbserver.cpp

lldb/tools/lldb-server/lldb-platform.cpp

lldb/unittests/Host/SocketTest.cpp

lldb/unittests/Interpreter/TestArgs.cpp

lldb/unittests/Process/gdb-remote/GDBRemoteClientBaseTest.cpp

lldb/unittests/Process/gdb-remote/GDBRemoteCommunicationClientTest.cpp

lldb/unittests/Process/minidump/MinidumpParserTest.cpp

lldb/unittests/ScriptInterpreter/Python/PythonDataObjectsTests.cpp

lldb/unittests/SymbolFile/PDB/SymbolFilePDBTests.cpp

lldb/unittests/Utility/ModuleCacheTest.cpp

llvm/examples/Kaleidoscope/Chapter8/toy.cpp

llvm/include/llvm/ADT/StringRef.h

llvm/include/llvm/CodeGen/AsmPrinter.h

llvm/include/llvm/CodeGen/CommandFlags.h

llvm/include/llvm/CodeGen/MachineFunction.h

llvm/include/llvm/CodeGen/PseudoSourceValue.h

llvm/include/llvm/CodeGen/SelectionDAG.h

llvm/include/llvm/CodeGen/SelectionDAGNodes.h

llvm/include/llvm/IR/DiagnosticInfo.h

llvm/include/llvm/IR/Intrinsics.h

llvm/include/llvm/IR/LegacyPassNameParser.h

llvm/include/llvm/Object/ELFObjectFile.h

llvm/include/llvm/ProfileData/InstrProf.h

llvm/include/llvm/Support/SourceMgr.h

llvm/include/llvm/Target/TargetLowering.h

llvm/include/llvm/Transforms/Utils/LoopUtils.h

llvm/lib/Bitcode/Writer/BitWriter.cpp

llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp

llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp

llvm/lib/CodeGen/AsmPrinter/WinException.cpp

llvm/lib/CodeGen/DwarfEHPrepare.cpp

llvm/lib/CodeGen/IntrinsicLowering.cpp

llvm/lib/CodeGen/MIRParser/MIParser.cpp

llvm/lib/CodeGen/MIRPrinter.cpp

llvm/lib/CodeGen/MachineFunction.cpp

llvm/lib/CodeGen/PseudoSourceValue.cpp

llvm/lib/CodeGen/RegAllocBase.h

llvm/lib/CodeGen/RegAllocBase.cpp

llvm/lib/CodeGen/RegUsageInfoPropagate.cpp

llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

llvm/lib/CodeGen/SelectionDAG/InstrEmitter.cpp

llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp

llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp

llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

llvm/lib/CodeGen/TargetLoweringBase.cpp

llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp

llvm/lib/DebugInfo/DWARF/DWARFFormValue.cpp

llvm/lib/DebugInfo/Symbolize/DIPrinter.cpp

llvm/lib/ExecutionEngine/ExecutionEngineBindings.cpp

llvm/lib/ExecutionEngine/Orc/OrcCBindings.cpp

llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldChecker.cpp

llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp

llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h

llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp

llvm/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldMachOAArch64.h

llvm/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldMachOARM.h

llvm/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldMachOI386.h

llvm/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldMachOX86_64.h

llvm/lib/IR/Core.cpp

llvm/lib/IR/Function.cpp

llvm/lib/IR/IntrinsicInst.cpp

llvm/lib/IR/Module.cpp

llvm/lib/IR/OptBisect.cpp

llvm/lib/IR/ProfileSummary.cpp

llvm/lib/IRReader/IRReader.cpp

llvm/lib/LTO/UpdateCompilerUsed.cpp

llvm/lib/LibDriver/LibDriver.cpp

llvm/lib/MC/ELFObjectWriter.cpp

llvm/lib/MC/MCDisassembler/Disassembler.cpp

llvm/lib/MC/MCDisassembler/MCExternalSymbolizer.cpp

llvm/lib/MC/MachObjectWriter.cpp

llvm/lib/Object/Archive.cpp

llvm/lib/Object/ArchiveWriter.cpp

llvm/lib/Object/MachOObjectFile.cpp

llvm/lib/Option/ArgList.cpp

llvm/lib/Option/OptTable.cpp

llvm/lib/ProfileData/Coverage/CoverageMappingReader.cpp

llvm/lib/ProfileData/InstrProfReader.cpp

llvm/lib/Support/CommandLine.cpp

llvm/lib/Support/DynamicLibrary.cpp

llvm/lib/Support/GraphWriter.cpp

llvm/lib/Support/SourceMgr.cpp

llvm/lib/Support/Unix/Process.inc

llvm/lib/Support/Unix/Program.inc

llvm/lib/Support/YAMLTraits.cpp

llvm/lib/Target/AArch64/AArch64ISelLowering.cpp

llvm/lib/Target/AArch64/AArch64MCInstLower.cpp

llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.cpp

llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp

llvm/lib/Target/AArch64/Disassembler/AArch64ExternalSymbolizer.cpp

llvm/lib/Target/AArch64/InstPrinter/AArch64InstPrinter.h

llvm/lib/Target/AArch64/InstPrinter/AArch64InstPrinter.cpp

llvm/lib/Target/AMDGPU/AMDGPUIntrinsicInfo.cpp

llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp

llvm/lib/Target/AMDGPU/SIAnnotateControlFlow.cpp

llvm/lib/Target/AMDGPU/SIISelLowering.cpp

llvm/lib/Target/ARM/ARMFastISel.cpp

llvm/lib/Target/ARM/ARMISelLowering.cpp

llvm/lib/Target/ARM/ARMMCInstLower.cpp

llvm/lib/Target/ARM/ARMSelectionDAGInfo.cpp

llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp

llvm/lib/Target/Hexagon/AsmParser/HexagonAsmParser.cpp

llvm/lib/Target/Hexagon/HexagonISelLowering.cpp

llvm/lib/Target/Hexagon/HexagonMCInstLower.cpp

llvm/lib/Target/Hexagon/HexagonSelectionDAGInfo.cpp

llvm/lib/Target/Hexagon/HexagonTargetObjectFile.cpp

llvm/lib/Target/Hexagon/HexagonVectorPrint.cpp

llvm/lib/Target/Hexagon/MCTargetDesc/HexagonInstPrinter.cpp

llvm/lib/Target/Lanai/LanaiAsmPrinter.cpp

llvm/lib/Target/Lanai/LanaiISelLowering.cpp

llvm/lib/Target/Lanai/LanaiMCInstLower.cpp

llvm/lib/Target/MSP430/MSP430ISelDAGToDAG.cpp

llvm/lib/Target/MSP430/MSP430ISelLowering.cpp

llvm/lib/Target/MSP430/MSP430MCInstLower.cpp

llvm/lib/Target/Mips/Mips16HardFloat.cpp

llvm/lib/Target/Mips/Mips16ISelLowering.cpp

llvm/lib/Target/Mips/MipsCCState.cpp

llvm/lib/Target/Mips/MipsISelLowering.cpp

llvm/lib/Target/Mips/MipsMCInstLower.cpp

llvm/lib/Target/Mips/MipsMachineFunction.cpp

llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp

llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp

llvm/lib/Target/NVPTX/NVPTXReplaceImageHandles.cpp

llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp

llvm/lib/Target/PowerPC/PPCISelLowering.cpp

llvm/lib/Target/PowerPC/PPCLoopPreIncPrep.cpp

llvm/lib/Target/Sparc/SparcISelLowering.h

llvm/lib/Target/Sparc/SparcISelLowering.cpp

llvm/lib/Target/Sparc/SparcMCInstLower.cpp

llvm/lib/Target/SystemZ/SystemZMCInstLower.cpp

llvm/lib/Target/Target.cpp

llvm/lib/Target/TargetMachineC.cpp

llvm/lib/Target/TargetRecip.cpp

llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp

llvm/lib/Target/X86/X86AsmPrinter.cpp

llvm/lib/Target/X86/X86FrameLowering.cpp

llvm/lib/Target/X86/X86ISelDAGToDAG.cpp

llvm/lib/Target/X86/X86ISelLowering.cpp

llvm/lib/Target/X86/X86MCInstLower.cpp

llvm/lib/Target/X86/X86SelectionDAGInfo.cpp

llvm/lib/Target/X86/X86Subtarget.h

llvm/lib/Target/X86/X86Subtarget.cpp

llvm/lib/Target/X86/X86TargetMachine.cpp

llvm/lib/Target/X86/X86WinEHState.cpp

llvm/lib/Target/XCore/XCoreMCInstLower.cpp

llvm/lib/Transforms/Coroutines/Coroutines.cpp

llvm/lib/Transforms/IPO/LowerTypeTests.cpp

llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp

llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp

llvm/lib/Transforms/Instrumentation/EfficiencySanitizer.cpp

llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp

llvm/lib/Transforms/Instrumentation/SanitizerCoverage.cpp

llvm/lib/Transforms/Instrumentation/ThreadSanitizer.cpp

llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp

llvm/lib/Transforms/Scalar/LoopInterchange.cpp

llvm/lib/Transforms/Scalar/LoopVersioningLICM.cpp

llvm/lib/Transforms/Scalar/PlaceSafepoints.cpp

llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp

llvm/lib/Transforms/Utils/ModuleUtils.cpp

llvm/lib/Transforms/Vectorize/LoopVectorize.cpp

llvm/tools/bugpoint/CrashDebugger.cpp

llvm/tools/bugpoint/ExtractFunction.cpp

llvm/tools/bugpoint/bugpoint.cpp

llvm/tools/dsymutil/DwarfLinker.cpp

llvm/tools/dsymutil/MachODebugMapParser.cpp

llvm/tools/dsymutil/dsymutil.cpp

llvm/tools/llc/llc.cpp

llvm/tools/lli/lli.cpp

llvm/tools/llvm-ar/llvm-ar.cpp

llvm/tools/llvm-as/llvm-as.cpp

llvm/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp

llvm/tools/llvm-config/llvm-config.cpp

llvm/tools/llvm-cov/llvm-cov.cpp

llvm/tools/llvm-cxxdump/llvm-cxxdump.cpp

llvm/tools/llvm-dis/llvm-dis.cpp

llvm/tools/llvm-dwarfdump/llvm-dwarfdump.cpp

llvm/tools/llvm-dwp/llvm-dwp.cpp

llvm/tools/llvm-extract/llvm-extract.cpp

llvm/tools/llvm-jitlistener/llvm-jitlistener.cpp

llvm/tools/llvm-link/llvm-link.cpp

llvm/tools/llvm-lto/llvm-lto.cpp

llvm/tools/llvm-mc/llvm-mc.cpp

llvm/tools/llvm-mcmarkup/llvm-mcmarkup.cpp

llvm/tools/llvm-nm/llvm-nm.cpp

llvm/tools/llvm-objdump/MachODump.cpp

llvm/tools/llvm-objdump/llvm-objdump.cpp

llvm/tools/llvm-opt-report/OptReport.cpp

llvm/tools/llvm-pdbdump/llvm-pdbdump.cpp

llvm/tools/llvm-profdata/llvm-profdata.cpp

llvm/tools/llvm-readobj/ARMAttributeParser.cpp

llvm/tools/llvm-readobj/ELFDumper.cpp

llvm/tools/llvm-readobj/MachODumper.cpp

llvm/tools/llvm-readobj/llvm-readobj.cpp

llvm/tools/llvm-rtdyld/llvm-rtdyld.cpp

llvm/tools/llvm-size/llvm-size.cpp

llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp

llvm/tools/lto/lto.cpp

llvm/tools/obj2yaml/obj2yaml.cpp

llvm/tools/opt/PassPrinters.cpp

llvm/tools/opt/opt.cpp

llvm/tools/sancov/sancov.cc

llvm/tools/verify-uselistorder/verify-uselistorder.cpp

llvm/tools/yaml2obj/yaml2obj.cpp

llvm/unittests/ADT/APFloatTest.cpp

llvm/unittests/ADT/APIntTest.cpp

llvm/unittests/ADT/FoldingSet.cpp

llvm/unittests/ADT/HashingTest.cpp

llvm/unittests/ADT/StringMapTest.cpp

llvm/unittests/ADT/StringRefTest.cpp

llvm/unittests/Analysis/BlockFrequencyInfoTest.cpp

llvm/unittests/Analysis/CFGTest.cpp

llvm/unittests/Analysis/CGSCCPassManagerTest.cpp

llvm/unittests/Analysis/LazyCallGraphTest.cpp

llvm/unittests/Analysis/LoopPassManagerTest.cpp

llvm/unittests/Analysis/UnrollAnalyzer.cpp

llvm/unittests/Analysis/ValueTrackingTest.cpp

llvm/unittests/Bitcode/BitReaderTest.cpp

llvm/unittests/ExecutionEngine/MCJIT/MCJITCAPITest.cpp

llvm/unittests/ExecutionEngine/MCJIT/MCJITMultipleModuleTest.cpp

llvm/unittests/ExecutionEngine/MCJIT/MCJITTestAPICommon.h

llvm/unittests/IR/DominatorTreeTest.cpp

llvm/unittests/IR/IntrinsicsTest.cpp

llvm/unittests/IR/MetadataTest.cpp

llvm/unittests/IR/PassManagerTest.cpp

llvm/unittests/IR/UseTest.cpp

llvm/unittests/IR/UserTest.cpp

llvm/unittests/IR/ValueTest.cpp

llvm/unittests/Linker/LinkModulesTest.cpp

llvm/unittests/MC/DwarfLineTables.cpp

llvm/unittests/MI/LiveIntervalTest.cpp

llvm/unittests/ProfileData/CoverageMappingTest.cpp

llvm/unittests/Support/ProgramTest.cpp

llvm/unittests/Support/TargetParserTest.cpp

llvm/unittests/Support/raw_pwrite_stream_test.cpp

llvm/utils/FileCheck/FileCheck.cpp

llvm/utils/KillTheDoctor/KillTheDoctor.cpp

llvm/utils/TableGen/Attributes.cpp

llvm/utils/TableGen/IntrinsicEmitter.cpp

llvm/utils/TableGen/TableGen.cpp

llvm/utils/not/not.cpp

llvm/utils/unittest/UnitTestMain/TestMain.cpp

polly/lib/Analysis/ScopInfo.cpp

polly/lib/CodeGen/BlockGenerators.cpp

polly/lib/CodeGen/RuntimeDebugBuilder.cpp