491 lines
18 KiB
C++
491 lines
18 KiB
C++
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//===- CoverageReport.cpp - Code coverage report -------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This class implements rendering of a code coverage report.
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//
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//===----------------------------------------------------------------------===//
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#include "CoverageReport.h"
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#include "RenderingSupport.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/Support/Format.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/ThreadPool.h"
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#include "llvm/Support/Threading.h"
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#include <numeric>
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using namespace llvm;
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namespace {
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/// Helper struct which prints trimmed and aligned columns.
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struct Column {
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enum TrimKind { NoTrim, WidthTrim, RightTrim };
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enum AlignmentKind { LeftAlignment, RightAlignment };
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StringRef Str;
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unsigned Width;
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TrimKind Trim;
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AlignmentKind Alignment;
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Column(StringRef Str, unsigned Width)
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: Str(Str), Width(Width), Trim(WidthTrim), Alignment(LeftAlignment) {}
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Column &set(TrimKind Value) {
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Trim = Value;
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return *this;
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}
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Column &set(AlignmentKind Value) {
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Alignment = Value;
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return *this;
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}
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void render(raw_ostream &OS) const {
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if (Str.size() <= Width) {
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if (Alignment == RightAlignment) {
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OS.indent(Width - Str.size());
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OS << Str;
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return;
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}
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OS << Str;
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OS.indent(Width - Str.size());
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return;
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}
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switch (Trim) {
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case NoTrim:
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OS << Str;
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break;
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case WidthTrim:
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OS << Str.substr(0, Width);
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break;
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case RightTrim:
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OS << Str.substr(0, Width - 3) << "...";
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break;
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}
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}
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};
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raw_ostream &operator<<(raw_ostream &OS, const Column &Value) {
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Value.render(OS);
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return OS;
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}
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Column column(StringRef Str, unsigned Width) { return Column(Str, Width); }
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template <typename T>
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Column column(StringRef Str, unsigned Width, const T &Value) {
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return Column(Str, Width).set(Value);
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}
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// Specify the default column widths.
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size_t FileReportColumns[] = {25, 12, 18, 10, 12, 18, 10, 16,
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16, 10, 12, 18, 10, 12, 18, 10};
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size_t FunctionReportColumns[] = {25, 10, 8, 8, 10, 8, 8, 10, 8, 8};
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/// Adjust column widths to fit long file paths and function names.
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void adjustColumnWidths(ArrayRef<StringRef> Files,
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ArrayRef<StringRef> Functions) {
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for (StringRef Filename : Files)
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FileReportColumns[0] = std::max(FileReportColumns[0], Filename.size());
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for (StringRef Funcname : Functions)
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FunctionReportColumns[0] =
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std::max(FunctionReportColumns[0], Funcname.size());
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}
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/// Prints a horizontal divider long enough to cover the given column
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/// widths.
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void renderDivider(ArrayRef<size_t> ColumnWidths, raw_ostream &OS) {
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size_t Length = std::accumulate(ColumnWidths.begin(), ColumnWidths.end(), 0);
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for (size_t I = 0; I < Length; ++I)
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OS << '-';
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}
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/// Return the color which correponds to the coverage percentage of a
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/// certain metric.
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template <typename T>
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raw_ostream::Colors determineCoveragePercentageColor(const T &Info) {
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if (Info.isFullyCovered())
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return raw_ostream::GREEN;
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return Info.getPercentCovered() >= 80.0 ? raw_ostream::YELLOW
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: raw_ostream::RED;
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}
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/// Get the number of redundant path components in each path in \p Paths.
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unsigned getNumRedundantPathComponents(ArrayRef<std::string> Paths) {
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// To start, set the number of redundant path components to the maximum
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// possible value.
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SmallVector<StringRef, 8> FirstPathComponents{sys::path::begin(Paths[0]),
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sys::path::end(Paths[0])};
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unsigned NumRedundant = FirstPathComponents.size();
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for (unsigned I = 1, E = Paths.size(); NumRedundant > 0 && I < E; ++I) {
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StringRef Path = Paths[I];
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for (const auto &Component :
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enumerate(make_range(sys::path::begin(Path), sys::path::end(Path)))) {
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// Do not increase the number of redundant components: that would remove
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// useful parts of already-visited paths.
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if (Component.index() >= NumRedundant)
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break;
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// Lower the number of redundant components when there's a mismatch
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// between the first path, and the path under consideration.
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if (FirstPathComponents[Component.index()] != Component.value()) {
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NumRedundant = Component.index();
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break;
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}
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}
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}
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return NumRedundant;
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}
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/// Determine the length of the longest redundant prefix of the paths in
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/// \p Paths.
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unsigned getRedundantPrefixLen(ArrayRef<std::string> Paths) {
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// If there's at most one path, no path components are redundant.
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if (Paths.size() <= 1)
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return 0;
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unsigned PrefixLen = 0;
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unsigned NumRedundant = getNumRedundantPathComponents(Paths);
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auto Component = sys::path::begin(Paths[0]);
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for (unsigned I = 0; I < NumRedundant; ++I) {
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auto LastComponent = Component;
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++Component;
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PrefixLen += Component - LastComponent;
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}
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return PrefixLen;
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}
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} // end anonymous namespace
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namespace llvm {
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void CoverageReport::render(const FileCoverageSummary &File,
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raw_ostream &OS) const {
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auto FileCoverageColor =
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determineCoveragePercentageColor(File.RegionCoverage);
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auto FuncCoverageColor =
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determineCoveragePercentageColor(File.FunctionCoverage);
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auto InstantiationCoverageColor =
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determineCoveragePercentageColor(File.InstantiationCoverage);
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auto LineCoverageColor = determineCoveragePercentageColor(File.LineCoverage);
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SmallString<256> FileName = File.Name;
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sys::path::remove_dots(FileName, /*remove_dot_dots=*/true);
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sys::path::native(FileName);
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OS << column(FileName, FileReportColumns[0], Column::NoTrim);
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if (Options.ShowRegionSummary) {
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OS << format("%*u", FileReportColumns[1],
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(unsigned)File.RegionCoverage.getNumRegions());
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Options.colored_ostream(OS, FileCoverageColor)
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<< format("%*u", FileReportColumns[2],
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(unsigned)(File.RegionCoverage.getNumRegions() -
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File.RegionCoverage.getCovered()));
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if (File.RegionCoverage.getNumRegions())
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Options.colored_ostream(OS, FileCoverageColor)
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<< format("%*.2f", FileReportColumns[3] - 1,
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File.RegionCoverage.getPercentCovered())
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<< '%';
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else
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OS << column("-", FileReportColumns[3], Column::RightAlignment);
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}
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OS << format("%*u", FileReportColumns[4],
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(unsigned)File.FunctionCoverage.getNumFunctions());
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OS << format("%*u", FileReportColumns[5],
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(unsigned)(File.FunctionCoverage.getNumFunctions() -
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File.FunctionCoverage.getExecuted()));
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if (File.FunctionCoverage.getNumFunctions())
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Options.colored_ostream(OS, FuncCoverageColor)
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<< format("%*.2f", FileReportColumns[6] - 1,
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File.FunctionCoverage.getPercentCovered())
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<< '%';
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else
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OS << column("-", FileReportColumns[6], Column::RightAlignment);
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if (Options.ShowInstantiationSummary) {
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OS << format("%*u", FileReportColumns[7],
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(unsigned)File.InstantiationCoverage.getNumFunctions());
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OS << format("%*u", FileReportColumns[8],
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(unsigned)(File.InstantiationCoverage.getNumFunctions() -
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File.InstantiationCoverage.getExecuted()));
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if (File.InstantiationCoverage.getNumFunctions())
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Options.colored_ostream(OS, InstantiationCoverageColor)
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<< format("%*.2f", FileReportColumns[9] - 1,
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File.InstantiationCoverage.getPercentCovered())
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<< '%';
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else
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OS << column("-", FileReportColumns[9], Column::RightAlignment);
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}
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OS << format("%*u", FileReportColumns[10],
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(unsigned)File.LineCoverage.getNumLines());
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Options.colored_ostream(OS, LineCoverageColor) << format(
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"%*u", FileReportColumns[11], (unsigned)(File.LineCoverage.getNumLines() -
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File.LineCoverage.getCovered()));
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if (File.LineCoverage.getNumLines())
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Options.colored_ostream(OS, LineCoverageColor)
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<< format("%*.2f", FileReportColumns[12] - 1,
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File.LineCoverage.getPercentCovered())
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<< '%';
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else
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OS << column("-", FileReportColumns[12], Column::RightAlignment);
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if (Options.ShowBranchSummary) {
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OS << format("%*u", FileReportColumns[13],
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(unsigned)File.BranchCoverage.getNumBranches());
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Options.colored_ostream(OS, LineCoverageColor)
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<< format("%*u", FileReportColumns[14],
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(unsigned)(File.BranchCoverage.getNumBranches() -
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File.BranchCoverage.getCovered()));
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if (File.BranchCoverage.getNumBranches())
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Options.colored_ostream(OS, LineCoverageColor)
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<< format("%*.2f", FileReportColumns[15] - 1,
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File.BranchCoverage.getPercentCovered())
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<< '%';
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else
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OS << column("-", FileReportColumns[15], Column::RightAlignment);
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}
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OS << "\n";
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}
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void CoverageReport::render(const FunctionCoverageSummary &Function,
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const DemangleCache &DC,
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raw_ostream &OS) const {
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auto FuncCoverageColor =
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determineCoveragePercentageColor(Function.RegionCoverage);
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auto LineCoverageColor =
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determineCoveragePercentageColor(Function.LineCoverage);
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OS << column(DC.demangle(Function.Name), FunctionReportColumns[0],
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Column::RightTrim)
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<< format("%*u", FunctionReportColumns[1],
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(unsigned)Function.RegionCoverage.getNumRegions());
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Options.colored_ostream(OS, FuncCoverageColor)
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<< format("%*u", FunctionReportColumns[2],
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(unsigned)(Function.RegionCoverage.getNumRegions() -
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Function.RegionCoverage.getCovered()));
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Options.colored_ostream(
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OS, determineCoveragePercentageColor(Function.RegionCoverage))
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<< format("%*.2f", FunctionReportColumns[3] - 1,
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Function.RegionCoverage.getPercentCovered())
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<< '%';
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OS << format("%*u", FunctionReportColumns[4],
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(unsigned)Function.LineCoverage.getNumLines());
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Options.colored_ostream(OS, LineCoverageColor)
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<< format("%*u", FunctionReportColumns[5],
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(unsigned)(Function.LineCoverage.getNumLines() -
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Function.LineCoverage.getCovered()));
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Options.colored_ostream(
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OS, determineCoveragePercentageColor(Function.LineCoverage))
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<< format("%*.2f", FunctionReportColumns[6] - 1,
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Function.LineCoverage.getPercentCovered())
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<< '%';
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if (Options.ShowBranchSummary) {
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OS << format("%*u", FunctionReportColumns[7],
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(unsigned)Function.BranchCoverage.getNumBranches());
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Options.colored_ostream(OS, LineCoverageColor)
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<< format("%*u", FunctionReportColumns[8],
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(unsigned)(Function.BranchCoverage.getNumBranches() -
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Function.BranchCoverage.getCovered()));
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Options.colored_ostream(
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OS, determineCoveragePercentageColor(Function.BranchCoverage))
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<< format("%*.2f", FunctionReportColumns[9] - 1,
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Function.BranchCoverage.getPercentCovered())
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<< '%';
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}
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OS << "\n";
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}
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void CoverageReport::renderFunctionReports(ArrayRef<std::string> Files,
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const DemangleCache &DC,
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raw_ostream &OS) {
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bool isFirst = true;
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for (StringRef Filename : Files) {
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auto Functions = Coverage.getCoveredFunctions(Filename);
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if (isFirst)
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isFirst = false;
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else
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OS << "\n";
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std::vector<StringRef> Funcnames;
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for (const auto &F : Functions)
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Funcnames.emplace_back(DC.demangle(F.Name));
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adjustColumnWidths({}, Funcnames);
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OS << "File '" << Filename << "':\n";
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OS << column("Name", FunctionReportColumns[0])
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<< column("Regions", FunctionReportColumns[1], Column::RightAlignment)
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<< column("Miss", FunctionReportColumns[2], Column::RightAlignment)
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<< column("Cover", FunctionReportColumns[3], Column::RightAlignment)
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<< column("Lines", FunctionReportColumns[4], Column::RightAlignment)
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<< column("Miss", FunctionReportColumns[5], Column::RightAlignment)
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<< column("Cover", FunctionReportColumns[6], Column::RightAlignment);
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if (Options.ShowBranchSummary)
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OS << column("Branches", FunctionReportColumns[7], Column::RightAlignment)
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<< column("Miss", FunctionReportColumns[8], Column::RightAlignment)
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<< column("Cover", FunctionReportColumns[9], Column::RightAlignment);
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OS << "\n";
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renderDivider(FunctionReportColumns, OS);
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OS << "\n";
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FunctionCoverageSummary Totals("TOTAL");
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for (const auto &F : Functions) {
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auto Function = FunctionCoverageSummary::get(Coverage, F);
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++Totals.ExecutionCount;
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Totals.RegionCoverage += Function.RegionCoverage;
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Totals.LineCoverage += Function.LineCoverage;
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Totals.BranchCoverage += Function.BranchCoverage;
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render(Function, DC, OS);
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}
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if (Totals.ExecutionCount) {
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renderDivider(FunctionReportColumns, OS);
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OS << "\n";
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render(Totals, DC, OS);
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}
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}
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}
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void CoverageReport::prepareSingleFileReport(const StringRef Filename,
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const coverage::CoverageMapping *Coverage,
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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
|