Index: docs/CommandGuide/llvm-cov.rst =================================================================== --- docs/CommandGuide/llvm-cov.rst +++ docs/CommandGuide/llvm-cov.rst @@ -419,3 +419,16 @@ .. option:: -ignore-filename-regex= Skip source code files with file paths that match the given regular expression. + + .. option:: -skip-expansions + + Skip exporting macro expansion coverage data. + + .. option:: -skip-functions + + Skip exporting per-function coverage data. + + .. option:: -num-threads=N, -j=N + + Use N threads to export coverage data. When N=0, llvm-cov auto-detects an + appropriate number of threads to use. This is the default. Index: test/tools/llvm-cov/export_functions.test =================================================================== --- /dev/null +++ test/tools/llvm-cov/export_functions.test @@ -0,0 +1,10 @@ +# Test that llvm-cov export produces function data by default and that it can be +# turned off with a flag. + +RUN: llvm-cov export %S/Inputs/report.covmapping -instr-profile %S/Inputs/report.profdata 2>&1 | FileCheck %s +RUN: llvm-cov export %S/Inputs/report.covmapping -instr-profile %S/Inputs/report.profdata -skip-functions 2>&1 | FileCheck -check-prefix=SKIP-FUNCTIONS %s + +CHECK: "functions":[ +SKIP-FUNCTIONS-NOT: "functions":[ + + Index: test/tools/llvm-cov/showExpansions.cpp =================================================================== --- test/tools/llvm-cov/showExpansions.cpp +++ test/tools/llvm-cov/showExpansions.cpp @@ -25,3 +25,6 @@ return 0; } // RUN: llvm-cov export %S/Inputs/showExpansions.covmapping -instr-profile %S/Inputs/showExpansions.profdata 2>&1 | FileCheck %S/Inputs/showExpansions.json + +// RUN: llvm-cov export %S/Inputs/showExpansions.covmapping -instr-profile %S/Inputs/showExpansions.profdata -skip-expansions 2>&1 | FileCheck %s -check-prefix=SKIP-EXPANSIONS +// SKIP-EXPANSIONS-NOT: "expansions" Index: tools/llvm-cov/CodeCoverage.cpp =================================================================== --- tools/llvm-cov/CodeCoverage.cpp +++ tools/llvm-cov/CodeCoverage.cpp @@ -1006,10 +1006,23 @@ int CodeCoverageTool::doExport(int argc, const char **argv, CommandLineParserType commandLineParser) { + cl::OptionCategory ExportCategory("Exporting options"); + + cl::opt SkipExpansions("skip-expansions", cl::Optional, + cl::desc("Don't export expanded source regions"), + cl::cat(ExportCategory)); + + cl::opt SkipFunctions("skip-functions", cl::Optional, + cl::desc("Don't export per-function data"), + cl::cat(ExportCategory)); + auto Err = commandLineParser(argc, argv); if (Err) return Err; + ViewOpts.SkipExpansions = SkipExpansions; + ViewOpts.SkipFunctions = SkipFunctions; + if (ViewOpts.Format != CoverageViewOptions::OutputFormat::Text && ViewOpts.Format != CoverageViewOptions::OutputFormat::Lcov) { error("Coverage data can only be exported as textual JSON or an " Index: tools/llvm-cov/CoverageExporterJson.cpp =================================================================== --- tools/llvm-cov/CoverageExporterJson.cpp +++ tools/llvm-cov/CoverageExporterJson.cpp @@ -42,7 +42,14 @@ #include "CoverageExporterJson.h" #include "CoverageReport.h" +#include "llvm/ADT/Optional.h" +#include "llvm/ADT/StringRef.h" #include "llvm/Support/JSON.h" +#include "llvm/Support/ThreadPool.h" +#include "llvm/Support/Threading.h" +#include +#include +#include /// The semantic version combined as a string. #define LLVM_COVERAGE_EXPORT_JSON_STR "2.0.0" @@ -127,13 +134,15 @@ json::Object renderFile(const coverage::CoverageMapping &Coverage, const std::string &Filename, const FileCoverageSummary &FileReport, - bool ExportSummaryOnly) { + const CoverageViewOptions &Options) { json::Object File({{"filename", Filename}}); - if (!ExportSummaryOnly) { + if (!Options.ExportSummaryOnly) { // Calculate and render detailed coverage information for given file. auto FileCoverage = Coverage.getCoverageForFile(Filename); File["segments"] = renderFileSegments(FileCoverage, FileReport); - File["expansions"] = renderFileExpansions(FileCoverage, FileReport); + if (!Options.SkipExpansions) { + File["expansions"] = renderFileExpansions(FileCoverage, FileReport); + } } File["summary"] = renderSummary(FileReport); return File; @@ -142,11 +151,28 @@ json::Array renderFiles(const coverage::CoverageMapping &Coverage, ArrayRef SourceFiles, ArrayRef FileReports, - bool ExportSummaryOnly) { + const CoverageViewOptions &Options) { + auto NumThreads = Options.NumThreads; + if (NumThreads == 0) { + NumThreads = std::max(1U, std::min(llvm::heavyweight_hardware_concurrency(), + unsigned(SourceFiles.size()))); + } + ThreadPool Pool(NumThreads); json::Array FileArray; - for (unsigned I = 0, E = SourceFiles.size(); I < E; ++I) - FileArray.push_back(renderFile(Coverage, SourceFiles[I], FileReports[I], - ExportSummaryOnly)); + std::mutex FileArrayMutex; + + for (unsigned I = 0, E = SourceFiles.size(); I < E; ++I) { + auto &SourceFile = SourceFiles[I]; + auto &FileReport = FileReports[I]; + Pool.async([&] { + auto File = renderFile(Coverage, SourceFile, FileReport, Options); + { + std::lock_guard Lock(FileArrayMutex); + FileArray.push_back(std::move(File)); + } + }); + } + Pool.wait(); return FileArray; } @@ -177,12 +203,22 @@ FileCoverageSummary Totals = FileCoverageSummary("Totals"); auto FileReports = CoverageReport::prepareFileReports(Coverage, Totals, SourceFiles, Options); - auto Export = - json::Object({{"files", renderFiles(Coverage, SourceFiles, FileReports, - Options.ExportSummaryOnly)}, - {"totals", renderSummary(Totals)}}); - // Skip functions-level information for summary-only export mode. - if (!Options.ExportSummaryOnly) + auto Files = renderFiles(Coverage, SourceFiles, FileReports, Options); + // Sort files in order of their names. + std::sort(Files.begin(), Files.end(), + [](const json::Value &A, const json::Value &B) { + const json::Object *ObjA = A.getAsObject(); + const json::Object *ObjB = B.getAsObject(); + assert(ObjA != nullptr && "Value A was not an Object"); + assert(ObjB != nullptr && "Value B was not an Object"); + const StringRef FilenameA = ObjA->getString("filename").getValue(); + const StringRef FilenameB = ObjB->getString("filename").getValue(); + return FilenameA.compare(FilenameB) < 0; + }); + auto Export = json::Object( + {{"files", std::move(Files)}, {"totals", renderSummary(Totals)}}); + // Skip functions-level information if necessary. + if (!Options.ExportSummaryOnly && !Options.SkipFunctions) Export["functions"] = renderFunctions(Coverage.getCoveredFunctions()); auto ExportArray = json::Array({std::move(Export)}); Index: tools/llvm-cov/CoverageViewOptions.h =================================================================== --- tools/llvm-cov/CoverageViewOptions.h +++ tools/llvm-cov/CoverageViewOptions.h @@ -34,6 +34,8 @@ bool ShowRegionSummary; bool ShowInstantiationSummary; bool ExportSummaryOnly; + bool SkipExpansions; + bool SkipFunctions; OutputFormat Format; std::string ShowOutputDirectory; std::vector DemanglerOpts;