1 //===- CoverageSummaryInfo.cpp - Coverage summary for function/file -------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // These structures are used to represent code coverage metrics
11 // for functions/files.
12 //
13 //===----------------------------------------------------------------------===//
14
15 #include "CoverageSummaryInfo.h"
16
17 using namespace llvm;
18 using namespace coverage;
19
20 FunctionCoverageSummary
get(const CoverageMapping & CM,const coverage::FunctionRecord & Function)21 FunctionCoverageSummary::get(const CoverageMapping &CM,
22 const coverage::FunctionRecord &Function) {
23 // Compute the region coverage.
24 size_t NumCodeRegions = 0, CoveredRegions = 0;
25 for (auto &CR : Function.CountedRegions) {
26 if (CR.Kind != CounterMappingRegion::CodeRegion)
27 continue;
28 ++NumCodeRegions;
29 if (CR.ExecutionCount != 0)
30 ++CoveredRegions;
31 }
32
33 // Compute the line coverage
34 size_t NumLines = 0, CoveredLines = 0;
35 CoverageData CD = CM.getCoverageForFunction(Function);
36 for (const auto &LCS : getLineCoverageStats(CD)) {
37 if (!LCS.isMapped())
38 continue;
39 ++NumLines;
40 if (LCS.getExecutionCount())
41 ++CoveredLines;
42 }
43
44 return FunctionCoverageSummary(
45 Function.Name, Function.ExecutionCount,
46 RegionCoverageInfo(CoveredRegions, NumCodeRegions),
47 LineCoverageInfo(CoveredLines, NumLines));
48 }
49
50 FunctionCoverageSummary
get(const InstantiationGroup & Group,ArrayRef<FunctionCoverageSummary> Summaries)51 FunctionCoverageSummary::get(const InstantiationGroup &Group,
52 ArrayRef<FunctionCoverageSummary> Summaries) {
53 std::string Name;
54 if (Group.hasName()) {
55 Name = Group.getName();
56 } else {
57 llvm::raw_string_ostream OS(Name);
58 OS << "Definition at line " << Group.getLine() << ", column "
59 << Group.getColumn();
60 }
61
62 FunctionCoverageSummary Summary(Name);
63 Summary.ExecutionCount = Group.getTotalExecutionCount();
64 Summary.RegionCoverage = Summaries[0].RegionCoverage;
65 Summary.LineCoverage = Summaries[0].LineCoverage;
66 for (const auto &FCS : Summaries.drop_front()) {
67 Summary.RegionCoverage.merge(FCS.RegionCoverage);
68 Summary.LineCoverage.merge(FCS.LineCoverage);
69 }
70 return Summary;
71 }
72