Intro

Unit size measurements show the distribution of size of units of code (methods, functions...).
Units are classified in four categories based on their size (lines of code): 1-20 (small units), 20-50 (medium size units), 51-100 (long units), 101+ (very long units).
You should aim at keeping units small (< 20 lines). Long units may become "bloaters", code that have increased to such gargantuan proportions that they are hard to work with.

Learn more...

Unit Size Overall

There are 187,023 units with 2,373,304 lines of code in units (53.6% of code).

2,258 very long units (417,132 lines of code)
5,706 long units (390,077 lines of code)
20,268 medium size units (630,678 lines of code)
27,135 small units (397,037 lines of code)
131,656 very small units (538,380 lines of code)

Legend:

101+

51-100

21-50

11-20

1-10

Unit Size per Extension

101+

51-100

21-50

11-20

1-10

Unit Size per Logical Component

primary logical decomposition

101+

51-100

21-50

11-20

1-10

Alternative Visuals

3D view of all units

Longest Units

Top 50 longest units

Unit	# lines	McCabe index	# params
void Clang::ConstructJob() in clang/lib/Driver/ToolChains/Clang.cpp	2084	700	6
void ObjectFileMachO::ParseSymtab() in lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp	1966	474	1
void llvm::UpgradeIntrinsicCall() in llvm/lib/IR/AutoUpgrade.cpp	1846	879	2
void ARMDAGToDAGISel::Select() in llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp	1562	316	1
void AArch64DAGToDAGISel::Select() in llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp	1508	907	1
Error BitcodeReader::parseFunctionBody() in llvm/lib/Bitcode/Reader/BitcodeReader.cpp	1325	441	1
void StdLibraryFunctionsChecker::initFunctionSummaries() in clang/lib/StaticAnalyzer/Checkers/StdLibraryFunctionsChecker.cpp	1302	33	1
bool DWARFExpression::Evaluate() in lldb/source/Expression/DWARFExpression.cpp	1209	388	10
void X86DAGToDAGISel::Select() in llvm/lib/Target/X86/X86ISelDAGToDAG.cpp	1152	451	1
bool TargetLowering::SimplifyDemandedBits() in llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp	1074	397	7
bool SelectionDAGLegalize::ExpandNode() in llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp	1001	287	1
bool InstructionSelector::executeMatchTable() in llvm/include/llvm/CodeGen/GlobalISel/InstructionSelectorImpl.h	995	266	11
bool ARMExpandPseudo::ExpandMI() in llvm/lib/Target/ARM/ARMExpandPseudoInsts.cpp	966	441	3
bool llvm::inferLibFuncAttributes() in llvm/lib/Transforms/Utils/BuildLibCalls.cpp	924	323	2
bool AArch64InstructionSelector::select() in llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp	903	254	1
void RISCVDAGToDAGISel::Select() in llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp	886	323	1
void Parser::ParseDeclarationSpecifiers() in clang/lib/Parse/ParseDecl.cpp	881	284	5
void mlir::python::populateIRCore() in mlir/lib/Bindings/Python/IRCore.cpp	847	22	1
void AMDGPURegisterBankInfo::applyMappingImpl() in llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp	843	218	1
Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata() in llvm/lib/Bitcode/Reader/MetadataLoader.cpp	841	206	5
void PPCDAGToDAGISel::Select() in llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp	831	298	1
InstructionCost X86TTIImpl::getCastInstrCost() in llvm/lib/Target/X86/X86TargetTransformInfo.cpp	818	60	6
void AArch64InstrInfo::genAlternativeCodeSequence() in llvm/lib/Target/AArch64/AArch64InstrInfo.cpp	818	154	5
bool NVPTXTargetLowering::getTgtMemIntrinsic() in llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp	811	604	4
void CXXNameMangler::mangleExpression() in clang/lib/AST/ItaniumMangle.cpp	776	218	3
bool TargetLibraryInfoImpl::isValidProtoForLibFunc() in llvm/lib/Analysis/TargetLibraryInfo.cpp	776	732	3
int __kmp_fork_call() in openmp/runtime/src/kmp_runtime.cpp	742	148	7
bool FormatEntity::Format() in lldb/source/Core/FormatEntity.cpp	732	268	8
InstructionCost X86TTIImpl::getArithmeticInstrCost() in llvm/lib/Target/X86/X86TargetTransformInfo.cpp	725	164	9
SDValue MipsSETargetLowering::lowerINTRINSIC_WO_CHAIN() in llvm/lib/Target/Mips/MipsSEISelLowering.cpp	718	389	2
ExprResult Parser::ParseCastExpression() in clang/lib/Parse/ParseExpr.cpp	717	260	6
bool llvm::EmitAnyX86InstComments() in llvm/lib/Target/X86/MCTargetDesc/X86InstComments.cpp	707	162	3
bool IRInterpreter::Interpret() in lldb/source/Expression/IRInterpreter.cpp	704	133	8
void ARMAsmPrinter::emitInstruction() in llvm/lib/Target/ARM/ARMAsmPrinter.cpp	703	116	1
SDValue TargetLowering::SimplifySetCC() in llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp	697	354	7
void LinkerDriver::linkerMain() in lld/COFF/Driver.cpp	695	256	1
bool HexagonEvaluator::evaluate() in llvm/lib/Target/Hexagon/HexagonBitTracker.cpp	694	271	3
void CanonicalIncludes::addSystemHeadersMapping() in clang-tools-extra/clangd/index/CanonicalIncludes.cpp	687	4	1
void Verifier::visitIntrinsicCall() in llvm/lib/IR/Verifier.cpp	685	150	2
int __kmp_dispatch_next_algorithm() in openmp/runtime/src/kmp_dispatch.cpp	680	118	9
class alignas() in clang/include/clang/AST/Stmt.h	672	4	1
void SelectionDAGISel::SelectCodeCommon() in llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp	666	271	3
void AsmMatcherEmitter::run() in llvm/utils/TableGen/AsmMatcherEmitter.cpp	659	69	1
int HexagonAsmParser::processInstruction() in llvm/lib/Target/Hexagon/AsmParser/HexagonAsmParser.cpp	642	118	3
RValue CodeGenFunction::EmitCall() in clang/lib/CodeGen/CGCall.cpp	617	173	7
int main() in lldb/tools/debugserver/source/debugserver.cpp	612	168	2
static void ProcessDeclAttribute() in clang/lib/Sema/SemaDeclAttr.cpp	611	222	5
std::optional IntrinsicInterface::Match() in flang/lib/Evaluate/intrinsics.cpp	609	170	5
void MachineVerifier::verifyPreISelGenericInstruction() in llvm/lib/CodeGen/MachineVerifier.cpp	605	242	1
Error BitcodeReader::parseConstants() in llvm/lib/Bitcode/Reader/BitcodeReader.cpp	604	176	0