1 //===- CoverageSummaryInfo.cpp - Coverage summary for function/file -------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // These structures are used to represent code coverage metrics
11 // for functions/files.
13 //===----------------------------------------------------------------------===//
15 #include "CoverageSummaryInfo.h"
18 using namespace coverage;
20 FunctionCoverageSummary
21 FunctionCoverageSummary::get(const FunctionCoverageMapping &Function) {
22 // Compute the region coverage
23 size_t NumCodeRegions = 0, CoveredRegions = 0;
24 for (auto &CR : Function.CountedRegions) {
25 if (CR.Kind != CounterMappingRegion::CodeRegion)
28 if (CR.ExecutionCount != 0)
32 // Compute the line coverage
33 size_t NumLines = 0, CoveredLines = 0;
34 for (unsigned FileID = 0, E = Function.Filenames.size(); FileID < E;
36 // Find the line start and end of the function's source code
37 // in that particular file
38 unsigned LineStart = std::numeric_limits<unsigned>::max();
40 for (auto &CR : Function.CountedRegions) {
41 if (CR.FileID != FileID)
43 LineStart = std::min(LineStart, CR.LineStart);
44 LineEnd = std::max(LineEnd, CR.LineEnd);
46 unsigned LineCount = LineEnd - LineStart + 1;
49 llvm::SmallVector<uint64_t, 16> ExecutionCounts;
50 ExecutionCounts.resize(LineCount, 0);
51 for (auto &CR : Function.CountedRegions) {
52 if (CR.FileID != FileID)
54 // Ignore the lines that were skipped by the preprocessor.
55 auto ExecutionCount = CR.ExecutionCount;
56 if (CR.Kind == CounterMappingRegion::SkippedRegion) {
57 LineCount -= CR.LineEnd - CR.LineStart + 1;
60 for (unsigned I = CR.LineStart; I <= CR.LineEnd; ++I)
61 ExecutionCounts[I - LineStart] = ExecutionCount;
63 CoveredLines += LineCount - std::count(ExecutionCounts.begin(),
64 ExecutionCounts.end(), 0);
65 NumLines += LineCount;
67 return FunctionCoverageSummary(
68 Function.Name, RegionCoverageInfo(CoveredRegions, NumCodeRegions),
69 LineCoverageInfo(CoveredLines, 0, NumLines));
73 FileCoverageSummary::get(StringRef Name,
74 ArrayRef<FunctionCoverageSummary> FunctionSummaries) {
75 size_t NumRegions = 0, CoveredRegions = 0;
76 size_t NumLines = 0, NonCodeLines = 0, CoveredLines = 0;
77 size_t NumFunctionsCovered = 0;
78 for (const auto &Func : FunctionSummaries) {
79 CoveredRegions += Func.RegionCoverage.Covered;
80 NumRegions += Func.RegionCoverage.NumRegions;
82 CoveredLines += Func.LineCoverage.Covered;
83 NonCodeLines += Func.LineCoverage.NonCodeLines;
84 NumLines += Func.LineCoverage.NumLines;
86 if (Func.RegionCoverage.isFullyCovered())
87 ++NumFunctionsCovered;
90 return FileCoverageSummary(
91 Name, RegionCoverageInfo(CoveredRegions, NumRegions),
92 LineCoverageInfo(CoveredLines, NonCodeLines, NumLines),
93 FunctionCoverageInfo(NumFunctionsCovered, FunctionSummaries.size()),