tools/llvm-cov/CoverageSummary.cpp

   1 //===- CoverageSummary.cpp - Code coverage summary ------------------------===//
   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 // This class implements data management and rendering for the code coverage
  11 // summaries of all files and functions.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "CoverageSummary.h"
  16 #include "llvm/Support/FileSystem.h"
  17 #include "llvm/Support/Format.h"
  18
  19 using namespace llvm;
  20
  21 unsigned CoverageSummary::getFileID(StringRef Filename) {
  22   for (unsigned I = 0, E = Filenames.size(); I < E; ++I) {
  23     if (sys::fs::equivalent(Filenames[I], Filename))
  24       return I;
  25   }
  26   Filenames.push_back(Filename);
  27   return Filenames.size() - 1;
  28 }
  29
  30 void
  31 CoverageSummary::createSummaries(const coverage::CoverageMapping &Coverage) {
  32   for (StringRef Filename : Coverage.getUniqueSourceFiles()) {
  33     size_t PrevSize = FunctionSummaries.size();
  34     for (const auto &F : Coverage.getCoveredFunctions(Filename))
  35       FunctionSummaries.push_back(FunctionCoverageSummary::get(F));
  36     size_t Count = FunctionSummaries.size() - PrevSize;
  37     if (Count == 0)
  38       continue;
  39     FileSummaries.push_back(FileCoverageSummary::get(
  40         Filename, makeArrayRef(FunctionSummaries.data() + PrevSize, Count)));
  41   }
  42 }
  43
  44 FileCoverageSummary CoverageSummary::getCombinedFileSummaries() {
  45   size_t NumRegions = 0, CoveredRegions = 0;
  46   size_t NumLines = 0, NonCodeLines = 0, CoveredLines = 0;
  47   size_t NumFunctionsExecuted = 0, NumFunctions = 0;
  48   for (const auto &File : FileSummaries) {
  49     NumRegions += File.RegionCoverage.NumRegions;
  50     CoveredRegions += File.RegionCoverage.Covered;
  51
  52     NumLines += File.LineCoverage.NumLines;
  53     NonCodeLines += File.LineCoverage.NonCodeLines;
  54     CoveredLines += File.LineCoverage.Covered;
  55
  56     NumFunctionsExecuted += File.FunctionCoverage.Executed;
  57     NumFunctions += File.FunctionCoverage.NumFunctions;
  58   }
  59   return FileCoverageSummary(
  60       "TOTAL", RegionCoverageInfo(CoveredRegions, NumRegions),
  61       LineCoverageInfo(CoveredLines, NonCodeLines, NumLines),
  62       FunctionCoverageInfo(NumFunctionsExecuted, NumFunctions),
  63       None);
  64 }