mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 10:42:39 +01:00
f85fa6973c
This is an enhancement to LLVM Source-Based Code Coverage in clang to track how many times individual branch-generating conditions are taken (evaluate to TRUE) and not taken (evaluate to FALSE). Individual conditions may comprise larger boolean expressions using boolean logical operators. This functionality is very similar to what is supported by GCOV except that it is very closely anchored to the ASTs. Differential Revision: https://reviews.llvm.org/D84467
491 lines
18 KiB
C++
491 lines
18 KiB
C++
//===- CoverageReport.cpp - Code coverage report -------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This class implements rendering of a code coverage report.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "CoverageReport.h"
|
|
#include "RenderingSupport.h"
|
|
#include "llvm/ADT/DenseMap.h"
|
|
#include "llvm/Support/Format.h"
|
|
#include "llvm/Support/Path.h"
|
|
#include "llvm/Support/ThreadPool.h"
|
|
#include "llvm/Support/Threading.h"
|
|
#include <numeric>
|
|
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
/// Helper struct which prints trimmed and aligned columns.
|
|
struct Column {
|
|
enum TrimKind { NoTrim, WidthTrim, RightTrim };
|
|
|
|
enum AlignmentKind { LeftAlignment, RightAlignment };
|
|
|
|
StringRef Str;
|
|
unsigned Width;
|
|
TrimKind Trim;
|
|
AlignmentKind Alignment;
|
|
|
|
Column(StringRef Str, unsigned Width)
|
|
: Str(Str), Width(Width), Trim(WidthTrim), Alignment(LeftAlignment) {}
|
|
|
|
Column &set(TrimKind Value) {
|
|
Trim = Value;
|
|
return *this;
|
|
}
|
|
|
|
Column &set(AlignmentKind Value) {
|
|
Alignment = Value;
|
|
return *this;
|
|
}
|
|
|
|
void render(raw_ostream &OS) const {
|
|
if (Str.size() <= Width) {
|
|
if (Alignment == RightAlignment) {
|
|
OS.indent(Width - Str.size());
|
|
OS << Str;
|
|
return;
|
|
}
|
|
OS << Str;
|
|
OS.indent(Width - Str.size());
|
|
return;
|
|
}
|
|
|
|
switch (Trim) {
|
|
case NoTrim:
|
|
OS << Str;
|
|
break;
|
|
case WidthTrim:
|
|
OS << Str.substr(0, Width);
|
|
break;
|
|
case RightTrim:
|
|
OS << Str.substr(0, Width - 3) << "...";
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
|
|
raw_ostream &operator<<(raw_ostream &OS, const Column &Value) {
|
|
Value.render(OS);
|
|
return OS;
|
|
}
|
|
|
|
Column column(StringRef Str, unsigned Width) { return Column(Str, Width); }
|
|
|
|
template <typename T>
|
|
Column column(StringRef Str, unsigned Width, const T &Value) {
|
|
return Column(Str, Width).set(Value);
|
|
}
|
|
|
|
// Specify the default column widths.
|
|
size_t FileReportColumns[] = {25, 12, 18, 10, 12, 18, 10, 16,
|
|
16, 10, 12, 18, 10, 12, 18, 10};
|
|
size_t FunctionReportColumns[] = {25, 10, 8, 8, 10, 8, 8, 10, 8, 8};
|
|
|
|
/// Adjust column widths to fit long file paths and function names.
|
|
void adjustColumnWidths(ArrayRef<StringRef> Files,
|
|
ArrayRef<StringRef> Functions) {
|
|
for (StringRef Filename : Files)
|
|
FileReportColumns[0] = std::max(FileReportColumns[0], Filename.size());
|
|
for (StringRef Funcname : Functions)
|
|
FunctionReportColumns[0] =
|
|
std::max(FunctionReportColumns[0], Funcname.size());
|
|
}
|
|
|
|
/// Prints a horizontal divider long enough to cover the given column
|
|
/// widths.
|
|
void renderDivider(ArrayRef<size_t> ColumnWidths, raw_ostream &OS) {
|
|
size_t Length = std::accumulate(ColumnWidths.begin(), ColumnWidths.end(), 0);
|
|
for (size_t I = 0; I < Length; ++I)
|
|
OS << '-';
|
|
}
|
|
|
|
/// Return the color which correponds to the coverage percentage of a
|
|
/// certain metric.
|
|
template <typename T>
|
|
raw_ostream::Colors determineCoveragePercentageColor(const T &Info) {
|
|
if (Info.isFullyCovered())
|
|
return raw_ostream::GREEN;
|
|
return Info.getPercentCovered() >= 80.0 ? raw_ostream::YELLOW
|
|
: raw_ostream::RED;
|
|
}
|
|
|
|
/// Get the number of redundant path components in each path in \p Paths.
|
|
unsigned getNumRedundantPathComponents(ArrayRef<std::string> Paths) {
|
|
// To start, set the number of redundant path components to the maximum
|
|
// possible value.
|
|
SmallVector<StringRef, 8> FirstPathComponents{sys::path::begin(Paths[0]),
|
|
sys::path::end(Paths[0])};
|
|
unsigned NumRedundant = FirstPathComponents.size();
|
|
|
|
for (unsigned I = 1, E = Paths.size(); NumRedundant > 0 && I < E; ++I) {
|
|
StringRef Path = Paths[I];
|
|
for (const auto &Component :
|
|
enumerate(make_range(sys::path::begin(Path), sys::path::end(Path)))) {
|
|
// Do not increase the number of redundant components: that would remove
|
|
// useful parts of already-visited paths.
|
|
if (Component.index() >= NumRedundant)
|
|
break;
|
|
|
|
// Lower the number of redundant components when there's a mismatch
|
|
// between the first path, and the path under consideration.
|
|
if (FirstPathComponents[Component.index()] != Component.value()) {
|
|
NumRedundant = Component.index();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return NumRedundant;
|
|
}
|
|
|
|
/// Determine the length of the longest redundant prefix of the paths in
|
|
/// \p Paths.
|
|
unsigned getRedundantPrefixLen(ArrayRef<std::string> Paths) {
|
|
// If there's at most one path, no path components are redundant.
|
|
if (Paths.size() <= 1)
|
|
return 0;
|
|
|
|
unsigned PrefixLen = 0;
|
|
unsigned NumRedundant = getNumRedundantPathComponents(Paths);
|
|
auto Component = sys::path::begin(Paths[0]);
|
|
for (unsigned I = 0; I < NumRedundant; ++I) {
|
|
auto LastComponent = Component;
|
|
++Component;
|
|
PrefixLen += Component - LastComponent;
|
|
}
|
|
return PrefixLen;
|
|
}
|
|
|
|
} // end anonymous namespace
|
|
|
|
namespace llvm {
|
|
|
|
void CoverageReport::render(const FileCoverageSummary &File,
|
|
raw_ostream &OS) const {
|
|
auto FileCoverageColor =
|
|
determineCoveragePercentageColor(File.RegionCoverage);
|
|
auto FuncCoverageColor =
|
|
determineCoveragePercentageColor(File.FunctionCoverage);
|
|
auto InstantiationCoverageColor =
|
|
determineCoveragePercentageColor(File.InstantiationCoverage);
|
|
auto LineCoverageColor = determineCoveragePercentageColor(File.LineCoverage);
|
|
SmallString<256> FileName = File.Name;
|
|
sys::path::remove_dots(FileName, /*remove_dot_dots=*/true);
|
|
sys::path::native(FileName);
|
|
OS << column(FileName, FileReportColumns[0], Column::NoTrim);
|
|
|
|
if (Options.ShowRegionSummary) {
|
|
OS << format("%*u", FileReportColumns[1],
|
|
(unsigned)File.RegionCoverage.getNumRegions());
|
|
Options.colored_ostream(OS, FileCoverageColor)
|
|
<< format("%*u", FileReportColumns[2],
|
|
(unsigned)(File.RegionCoverage.getNumRegions() -
|
|
File.RegionCoverage.getCovered()));
|
|
if (File.RegionCoverage.getNumRegions())
|
|
Options.colored_ostream(OS, FileCoverageColor)
|
|
<< format("%*.2f", FileReportColumns[3] - 1,
|
|
File.RegionCoverage.getPercentCovered())
|
|
<< '%';
|
|
else
|
|
OS << column("-", FileReportColumns[3], Column::RightAlignment);
|
|
}
|
|
|
|
OS << format("%*u", FileReportColumns[4],
|
|
(unsigned)File.FunctionCoverage.getNumFunctions());
|
|
OS << format("%*u", FileReportColumns[5],
|
|
(unsigned)(File.FunctionCoverage.getNumFunctions() -
|
|
File.FunctionCoverage.getExecuted()));
|
|
if (File.FunctionCoverage.getNumFunctions())
|
|
Options.colored_ostream(OS, FuncCoverageColor)
|
|
<< format("%*.2f", FileReportColumns[6] - 1,
|
|
File.FunctionCoverage.getPercentCovered())
|
|
<< '%';
|
|
else
|
|
OS << column("-", FileReportColumns[6], Column::RightAlignment);
|
|
|
|
if (Options.ShowInstantiationSummary) {
|
|
OS << format("%*u", FileReportColumns[7],
|
|
(unsigned)File.InstantiationCoverage.getNumFunctions());
|
|
OS << format("%*u", FileReportColumns[8],
|
|
(unsigned)(File.InstantiationCoverage.getNumFunctions() -
|
|
File.InstantiationCoverage.getExecuted()));
|
|
if (File.InstantiationCoverage.getNumFunctions())
|
|
Options.colored_ostream(OS, InstantiationCoverageColor)
|
|
<< format("%*.2f", FileReportColumns[9] - 1,
|
|
File.InstantiationCoverage.getPercentCovered())
|
|
<< '%';
|
|
else
|
|
OS << column("-", FileReportColumns[9], Column::RightAlignment);
|
|
}
|
|
|
|
OS << format("%*u", FileReportColumns[10],
|
|
(unsigned)File.LineCoverage.getNumLines());
|
|
Options.colored_ostream(OS, LineCoverageColor) << format(
|
|
"%*u", FileReportColumns[11], (unsigned)(File.LineCoverage.getNumLines() -
|
|
File.LineCoverage.getCovered()));
|
|
if (File.LineCoverage.getNumLines())
|
|
Options.colored_ostream(OS, LineCoverageColor)
|
|
<< format("%*.2f", FileReportColumns[12] - 1,
|
|
File.LineCoverage.getPercentCovered())
|
|
<< '%';
|
|
else
|
|
OS << column("-", FileReportColumns[12], Column::RightAlignment);
|
|
|
|
if (Options.ShowBranchSummary) {
|
|
OS << format("%*u", FileReportColumns[13],
|
|
(unsigned)File.BranchCoverage.getNumBranches());
|
|
Options.colored_ostream(OS, LineCoverageColor)
|
|
<< format("%*u", FileReportColumns[14],
|
|
(unsigned)(File.BranchCoverage.getNumBranches() -
|
|
File.BranchCoverage.getCovered()));
|
|
if (File.BranchCoverage.getNumBranches())
|
|
Options.colored_ostream(OS, LineCoverageColor)
|
|
<< format("%*.2f", FileReportColumns[15] - 1,
|
|
File.BranchCoverage.getPercentCovered())
|
|
<< '%';
|
|
else
|
|
OS << column("-", FileReportColumns[15], Column::RightAlignment);
|
|
}
|
|
|
|
OS << "\n";
|
|
}
|
|
|
|
void CoverageReport::render(const FunctionCoverageSummary &Function,
|
|
const DemangleCache &DC,
|
|
raw_ostream &OS) const {
|
|
auto FuncCoverageColor =
|
|
determineCoveragePercentageColor(Function.RegionCoverage);
|
|
auto LineCoverageColor =
|
|
determineCoveragePercentageColor(Function.LineCoverage);
|
|
OS << column(DC.demangle(Function.Name), FunctionReportColumns[0],
|
|
Column::RightTrim)
|
|
<< format("%*u", FunctionReportColumns[1],
|
|
(unsigned)Function.RegionCoverage.getNumRegions());
|
|
Options.colored_ostream(OS, FuncCoverageColor)
|
|
<< format("%*u", FunctionReportColumns[2],
|
|
(unsigned)(Function.RegionCoverage.getNumRegions() -
|
|
Function.RegionCoverage.getCovered()));
|
|
Options.colored_ostream(
|
|
OS, determineCoveragePercentageColor(Function.RegionCoverage))
|
|
<< format("%*.2f", FunctionReportColumns[3] - 1,
|
|
Function.RegionCoverage.getPercentCovered())
|
|
<< '%';
|
|
OS << format("%*u", FunctionReportColumns[4],
|
|
(unsigned)Function.LineCoverage.getNumLines());
|
|
Options.colored_ostream(OS, LineCoverageColor)
|
|
<< format("%*u", FunctionReportColumns[5],
|
|
(unsigned)(Function.LineCoverage.getNumLines() -
|
|
Function.LineCoverage.getCovered()));
|
|
Options.colored_ostream(
|
|
OS, determineCoveragePercentageColor(Function.LineCoverage))
|
|
<< format("%*.2f", FunctionReportColumns[6] - 1,
|
|
Function.LineCoverage.getPercentCovered())
|
|
<< '%';
|
|
if (Options.ShowBranchSummary) {
|
|
OS << format("%*u", FunctionReportColumns[7],
|
|
(unsigned)Function.BranchCoverage.getNumBranches());
|
|
Options.colored_ostream(OS, LineCoverageColor)
|
|
<< format("%*u", FunctionReportColumns[8],
|
|
(unsigned)(Function.BranchCoverage.getNumBranches() -
|
|
Function.BranchCoverage.getCovered()));
|
|
Options.colored_ostream(
|
|
OS, determineCoveragePercentageColor(Function.BranchCoverage))
|
|
<< format("%*.2f", FunctionReportColumns[9] - 1,
|
|
Function.BranchCoverage.getPercentCovered())
|
|
<< '%';
|
|
}
|
|
OS << "\n";
|
|
}
|
|
|
|
void CoverageReport::renderFunctionReports(ArrayRef<std::string> Files,
|
|
const DemangleCache &DC,
|
|
raw_ostream &OS) {
|
|
bool isFirst = true;
|
|
for (StringRef Filename : Files) {
|
|
auto Functions = Coverage.getCoveredFunctions(Filename);
|
|
|
|
if (isFirst)
|
|
isFirst = false;
|
|
else
|
|
OS << "\n";
|
|
|
|
std::vector<StringRef> Funcnames;
|
|
for (const auto &F : Functions)
|
|
Funcnames.emplace_back(DC.demangle(F.Name));
|
|
adjustColumnWidths({}, Funcnames);
|
|
|
|
OS << "File '" << Filename << "':\n";
|
|
OS << column("Name", FunctionReportColumns[0])
|
|
<< column("Regions", FunctionReportColumns[1], Column::RightAlignment)
|
|
<< column("Miss", FunctionReportColumns[2], Column::RightAlignment)
|
|
<< column("Cover", FunctionReportColumns[3], Column::RightAlignment)
|
|
<< column("Lines", FunctionReportColumns[4], Column::RightAlignment)
|
|
<< column("Miss", FunctionReportColumns[5], Column::RightAlignment)
|
|
<< column("Cover", FunctionReportColumns[6], Column::RightAlignment);
|
|
if (Options.ShowBranchSummary)
|
|
OS << column("Branches", FunctionReportColumns[7], Column::RightAlignment)
|
|
<< column("Miss", FunctionReportColumns[8], Column::RightAlignment)
|
|
<< column("Cover", FunctionReportColumns[9], Column::RightAlignment);
|
|
OS << "\n";
|
|
renderDivider(FunctionReportColumns, OS);
|
|
OS << "\n";
|
|
FunctionCoverageSummary Totals("TOTAL");
|
|
for (const auto &F : Functions) {
|
|
auto Function = FunctionCoverageSummary::get(Coverage, F);
|
|
++Totals.ExecutionCount;
|
|
Totals.RegionCoverage += Function.RegionCoverage;
|
|
Totals.LineCoverage += Function.LineCoverage;
|
|
Totals.BranchCoverage += Function.BranchCoverage;
|
|
render(Function, DC, OS);
|
|
}
|
|
if (Totals.ExecutionCount) {
|
|
renderDivider(FunctionReportColumns, OS);
|
|
OS << "\n";
|
|
render(Totals, DC, OS);
|
|
}
|
|
}
|
|
}
|
|
|
|
void CoverageReport::prepareSingleFileReport(const StringRef Filename,
|
|
const coverage::CoverageMapping *Coverage,
|
|
const CoverageViewOptions &Options, const unsigned LCP,
|
|
FileCoverageSummary *FileReport, const CoverageFilter *Filters) {
|
|
for (const auto &Group : Coverage->getInstantiationGroups(Filename)) {
|
|
std::vector<FunctionCoverageSummary> InstantiationSummaries;
|
|
for (const coverage::FunctionRecord *F : Group.getInstantiations()) {
|
|
if (!Filters->matches(*Coverage, *F))
|
|
continue;
|
|
auto InstantiationSummary = FunctionCoverageSummary::get(*Coverage, *F);
|
|
FileReport->addInstantiation(InstantiationSummary);
|
|
InstantiationSummaries.push_back(InstantiationSummary);
|
|
}
|
|
if (InstantiationSummaries.empty())
|
|
continue;
|
|
|
|
auto GroupSummary =
|
|
FunctionCoverageSummary::get(Group, InstantiationSummaries);
|
|
|
|
if (Options.Debug)
|
|
outs() << "InstantiationGroup: " << GroupSummary.Name << " with "
|
|
<< "size = " << Group.size() << "\n";
|
|
|
|
FileReport->addFunction(GroupSummary);
|
|
}
|
|
}
|
|
|
|
std::vector<FileCoverageSummary> CoverageReport::prepareFileReports(
|
|
const coverage::CoverageMapping &Coverage, FileCoverageSummary &Totals,
|
|
ArrayRef<std::string> Files, const CoverageViewOptions &Options,
|
|
const CoverageFilter &Filters) {
|
|
unsigned LCP = getRedundantPrefixLen(Files);
|
|
|
|
ThreadPoolStrategy S = hardware_concurrency(Options.NumThreads);
|
|
if (Options.NumThreads == 0) {
|
|
// If NumThreads is not specified, create one thread for each input, up to
|
|
// the number of hardware cores.
|
|
S = heavyweight_hardware_concurrency(Files.size());
|
|
S.Limit = true;
|
|
}
|
|
ThreadPool Pool(S);
|
|
|
|
std::vector<FileCoverageSummary> FileReports;
|
|
FileReports.reserve(Files.size());
|
|
|
|
for (StringRef Filename : Files) {
|
|
FileReports.emplace_back(Filename.drop_front(LCP));
|
|
Pool.async(&CoverageReport::prepareSingleFileReport, Filename,
|
|
&Coverage, Options, LCP, &FileReports.back(), &Filters);
|
|
}
|
|
Pool.wait();
|
|
|
|
for (const auto &FileReport : FileReports)
|
|
Totals += FileReport;
|
|
|
|
return FileReports;
|
|
}
|
|
|
|
void CoverageReport::renderFileReports(
|
|
raw_ostream &OS, const CoverageFilters &IgnoreFilenameFilters) const {
|
|
std::vector<std::string> UniqueSourceFiles;
|
|
for (StringRef SF : Coverage.getUniqueSourceFiles()) {
|
|
// Apply ignore source files filters.
|
|
if (!IgnoreFilenameFilters.matchesFilename(SF))
|
|
UniqueSourceFiles.emplace_back(SF.str());
|
|
}
|
|
renderFileReports(OS, UniqueSourceFiles);
|
|
}
|
|
|
|
void CoverageReport::renderFileReports(
|
|
raw_ostream &OS, ArrayRef<std::string> Files) const {
|
|
renderFileReports(OS, Files, CoverageFiltersMatchAll());
|
|
}
|
|
|
|
void CoverageReport::renderFileReports(
|
|
raw_ostream &OS, ArrayRef<std::string> Files,
|
|
const CoverageFiltersMatchAll &Filters) const {
|
|
FileCoverageSummary Totals("TOTAL");
|
|
auto FileReports =
|
|
prepareFileReports(Coverage, Totals, Files, Options, Filters);
|
|
|
|
std::vector<StringRef> Filenames;
|
|
for (const FileCoverageSummary &FCS : FileReports)
|
|
Filenames.emplace_back(FCS.Name);
|
|
adjustColumnWidths(Filenames, {});
|
|
|
|
OS << column("Filename", FileReportColumns[0]);
|
|
if (Options.ShowRegionSummary)
|
|
OS << column("Regions", FileReportColumns[1], Column::RightAlignment)
|
|
<< column("Missed Regions", FileReportColumns[2], Column::RightAlignment)
|
|
<< column("Cover", FileReportColumns[3], Column::RightAlignment);
|
|
OS << column("Functions", FileReportColumns[4], Column::RightAlignment)
|
|
<< column("Missed Functions", FileReportColumns[5], Column::RightAlignment)
|
|
<< column("Executed", FileReportColumns[6], Column::RightAlignment);
|
|
if (Options.ShowInstantiationSummary)
|
|
OS << column("Instantiations", FileReportColumns[7], Column::RightAlignment)
|
|
<< column("Missed Insts.", FileReportColumns[8], Column::RightAlignment)
|
|
<< column("Executed", FileReportColumns[9], Column::RightAlignment);
|
|
OS << column("Lines", FileReportColumns[10], Column::RightAlignment)
|
|
<< column("Missed Lines", FileReportColumns[11], Column::RightAlignment)
|
|
<< column("Cover", FileReportColumns[12], Column::RightAlignment);
|
|
if (Options.ShowBranchSummary)
|
|
OS << column("Branches", FileReportColumns[13], Column::RightAlignment)
|
|
<< column("Missed Branches", FileReportColumns[14],
|
|
Column::RightAlignment)
|
|
<< column("Cover", FileReportColumns[15], Column::RightAlignment);
|
|
OS << "\n";
|
|
renderDivider(FileReportColumns, OS);
|
|
OS << "\n";
|
|
|
|
bool EmptyFiles = false;
|
|
for (const FileCoverageSummary &FCS : FileReports) {
|
|
if (FCS.FunctionCoverage.getNumFunctions())
|
|
render(FCS, OS);
|
|
else
|
|
EmptyFiles = true;
|
|
}
|
|
|
|
if (EmptyFiles && Filters.empty()) {
|
|
OS << "\n"
|
|
<< "Files which contain no functions:\n";
|
|
|
|
for (const FileCoverageSummary &FCS : FileReports)
|
|
if (!FCS.FunctionCoverage.getNumFunctions())
|
|
render(FCS, OS);
|
|
}
|
|
|
|
renderDivider(FileReportColumns, OS);
|
|
OS << "\n";
|
|
render(Totals, OS);
|
|
}
|
|
|
|
} // end namespace llvm
|