1 files changed, 64 insertions, 0 deletions
diff --git a/tools/llvm-cov/CoverageSummary.cpp b/tools/llvm-cov/CoverageSummary.cpp
new file mode 100644
index 0000000..059c8c8
--- /dev/null
+++ b/tools/llvm-cov/CoverageSummary.cpp
@@ -0,0 +1,64 @@
+//===- CoverageSummary.cpp - Code coverage summary ------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This class implements data management and rendering for the code coverage
+// summaries of all files and functions.
+//
+//===----------------------------------------------------------------------===//
+
+#include "CoverageSummary.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Format.h"
+
+using namespace llvm;
+
+unsigned CoverageSummary::getFileID(StringRef Filename) {
+  for (unsigned I = 0, E = Filenames.size(); I < E; ++I) {
+    if (sys::fs::equivalent(Filenames[I], Filename))
+      return I;
+  }
+  Filenames.push_back(Filename);
+  return Filenames.size() - 1;
+}
+
+void
+CoverageSummary::createSummaries(const coverage::CoverageMapping &Coverage) {
+  for (StringRef Filename : Coverage.getUniqueSourceFiles()) {
+    size_t PrevSize = FunctionSummaries.size();
+    for (const auto &F : Coverage.getCoveredFunctions(Filename))
+      FunctionSummaries.push_back(FunctionCoverageSummary::get(F));
+    size_t Count = FunctionSummaries.size() - PrevSize;
+    if (Count == 0)
+      continue;
+    FileSummaries.push_back(FileCoverageSummary::get(
+        Filename, makeArrayRef(FunctionSummaries.data() + PrevSize, Count)));
+  }
+}
+
+FileCoverageSummary CoverageSummary::getCombinedFileSummaries() {
+  size_t NumRegions = 0, CoveredRegions = 0;
+  size_t NumLines = 0, NonCodeLines = 0, CoveredLines = 0;
+  size_t NumFunctionsExecuted = 0, NumFunctions = 0;
+  for (const auto &File : FileSummaries) {
+    NumRegions += File.RegionCoverage.NumRegions;
+    CoveredRegions += File.RegionCoverage.Covered;
+
+    NumLines += File.LineCoverage.NumLines;
+    NonCodeLines += File.LineCoverage.NonCodeLines;
+    CoveredLines += File.LineCoverage.Covered;
+
+    NumFunctionsExecuted += File.FunctionCoverage.Executed;
+    NumFunctions += File.FunctionCoverage.NumFunctions;
+  }
+  return FileCoverageSummary(
+      "TOTAL", RegionCoverageInfo(CoveredRegions, NumRegions),
+      LineCoverageInfo(CoveredLines, NonCodeLines, NumLines),
+      FunctionCoverageInfo(NumFunctionsExecuted, NumFunctions),
+      None);
+}