llvm-project/llvm/tools/llvm-cov/CoverageSummaryInfo.cpp

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//===- CoverageSummaryInfo.cpp - Coverage summary for function/file -------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// These structures are used to represent code coverage metrics
// for functions/files.
//
//===----------------------------------------------------------------------===//
#include "CoverageSummaryInfo.h"
using namespace llvm;
using namespace coverage;
FunctionCoverageSummary
FunctionCoverageSummary::get(const CoverageMapping &CM,
const coverage::FunctionRecord &Function) {
// Compute the region coverage.
size_t NumCodeRegions = 0, CoveredRegions = 0;
for (auto &CR : Function.CountedRegions) {
if (CR.Kind != CounterMappingRegion::CodeRegion)
continue;
++NumCodeRegions;
if (CR.ExecutionCount != 0)
++CoveredRegions;
}
// Compute the line coverage
size_t NumLines = 0, CoveredLines = 0;
CoverageData CD = CM.getCoverageForFunction(Function);
for (const auto &LCS : getLineCoverageStats(CD)) {
if (!LCS.isMapped())
continue;
++NumLines;
if (LCS.getExecutionCount())
++CoveredLines;
}
return FunctionCoverageSummary(
Function.Name, Function.ExecutionCount,
RegionCoverageInfo(CoveredRegions, NumCodeRegions),
LineCoverageInfo(CoveredLines, NumLines));
}
FunctionCoverageSummary
FunctionCoverageSummary::get(const InstantiationGroup &Group,
ArrayRef<FunctionCoverageSummary> Summaries) {
std::string Name;
if (Group.hasName()) {
Name = Group.getName();
} else {
llvm::raw_string_ostream OS(Name);
OS << "Definition at line " << Group.getLine() << ", column "
<< Group.getColumn();
}
FunctionCoverageSummary Summary(Name);
Summary.ExecutionCount = Group.getTotalExecutionCount();
Summary.RegionCoverage = Summaries[0].RegionCoverage;
Summary.LineCoverage = Summaries[0].LineCoverage;
for (const auto &FCS : Summaries.drop_front()) {
Summary.RegionCoverage.merge(FCS.RegionCoverage);
Summary.LineCoverage.merge(FCS.LineCoverage);
}
return Summary;
}