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diff --git a/tools/llvm-cov/CoverageSummary.h b/tools/llvm-cov/CoverageSummary.h
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+//===- CoverageSummary.h - 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.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_COV_COVERAGESUMMARY_H
+#define LLVM_COV_COVERAGESUMMARY_H
+
+#include "CoverageSummaryInfo.h"
+#include <vector>
+
+namespace llvm {
+
+/// \brief Manager for the function and file code coverage summaries.
+class CoverageSummary {
+  std::vector<StringRef> Filenames;
+  std::vector<FunctionCoverageSummary> FunctionSummaries;
+  std::vector<std::pair<unsigned, unsigned>> FunctionSummariesFileIDs;
+  std::vector<FileCoverageSummary> FileSummaries;
+
+  unsigned getFileID(StringRef Filename);
+
+public:
+  void createSummaries(const coverage::CoverageMapping &Coverage);
+
+  ArrayRef<FileCoverageSummary> getFileSummaries() { return FileSummaries; }
+
+  FileCoverageSummary getCombinedFileSummaries();
+
+  void render(const FunctionCoverageSummary &Summary, raw_ostream &OS);
+
+  void render(raw_ostream &OS);
+};
+}
+
+#endif // LLVM_COV_COVERAGESUMMARY_H