X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=unittests%2FProfileData%2FCoverageMappingTest.cpp;h=35b8626c494a100026d3d117cbb7e0c07b1f1237;hb=12d60e9e7c149a7d333e277dfbe25a720c88c585;hp=5477f8143007f2846a7d2dec5b3dba08a4edc85d;hpb=ff966308e1964c0780cc7a1dc05b644a729124bc;p=oota-llvm.git

diff --git a/unittests/ProfileData/CoverageMappingTest.cpp b/unittests/ProfileData/CoverageMappingTest.cpp
index 5477f814300..35b8626c494 100644
--- a/unittests/ProfileData/CoverageMappingTest.cpp
+++ b/unittests/ProfileData/CoverageMappingTest.cpp
@@ -10,12 +10,23 @@
 #include "llvm/ProfileData/CoverageMapping.h"
 #include "llvm/ProfileData/CoverageMappingReader.h"
 #include "llvm/ProfileData/CoverageMappingWriter.h"
+#include "llvm/ProfileData/InstrProfReader.h"
+#include "llvm/ProfileData/InstrProfWriter.h"
 #include "llvm/Support/raw_ostream.h"
 #include "gtest/gtest.h"
 
+#include <sstream>
+
 using namespace llvm;
 using namespace coverage;
 
+static ::testing::AssertionResult NoError(std::error_code EC) {
+  if (!EC)
+    return ::testing::AssertionSuccess();
+  return ::testing::AssertionFailure() << "error " << EC.value()
+                                       << ": " << EC.message();
+}
+
 namespace llvm {
 namespace coverage {
 void PrintTo(const Counter &C, ::std::ostream *os) {
@@ -26,87 +37,259 @@ void PrintTo(const Counter &C, ::std::ostream *os) {
   else
     *os << "Counter " << C.getCounterID();
 }
+
+void PrintTo(const CoverageSegment &S, ::std::ostream *os) {
+  *os << "CoverageSegment(" << S.Line << ", " << S.Col << ", ";
+  if (S.HasCount)
+    *os << S.Count << ", ";
+  *os << (S.IsRegionEntry ? "true" : "false") << ")";
+}
 }
 }
 
 namespace {
 
-static std::string writeCoverage(MutableArrayRef<CounterMappingRegion> Regions,
-                                 int NumFiles) {
-  SmallVector<unsigned, 8> FileIDs;
-  for (int I = 0; I < NumFiles; ++I)
-    FileIDs.push_back(I);
+struct OneFunctionCoverageReader : CoverageMappingReader {
+  StringRef Name;
+  uint64_t Hash;
+  std::vector<StringRef> Filenames;
+  ArrayRef<CounterMappingRegion> Regions;
+  bool Done;
 
-  std::string Coverage;
-  llvm::raw_string_ostream OS(Coverage);
-  CoverageMappingWriter(FileIDs, None, Regions).write(OS);
-  OS.flush();
+  OneFunctionCoverageReader(StringRef Name, uint64_t Hash,
+                            ArrayRef<StringRef> Filenames,
+                            ArrayRef<CounterMappingRegion> Regions)
+      : Name(Name), Hash(Hash), Filenames(Filenames), Regions(Regions),
+        Done(false) {}
 
-  return Coverage;
-}
+  std::error_code readNextRecord(CoverageMappingRecord &Record) override {
+    if (Done)
+      return instrprof_error::eof;
+    Done = true;
 
-static std::vector<CounterMappingRegion>
-readCoverageRegions(std::string Coverage, int NumFiles) {
-  SmallVector<std::string, 8> Filenames;
-  SmallVector<StringRef, 8> FilenameRefs;
-  for (int I = 0; I < NumFiles; ++I) {
-    Filenames.push_back("file" + std::to_string(I));
-    FilenameRefs.push_back(Filenames.back());
+    Record.FunctionName = Name;
+    Record.FunctionHash = Hash;
+    Record.Filenames = Filenames;
+    Record.Expressions = {};
+    Record.MappingRegions = Regions;
+    return instrprof_error::success;
   }
+};
 
-  std::vector<StringRef> FuncFiles;
-  std::vector<CounterExpression> Expressions;
-  std::vector<CounterMappingRegion> Regions;
-  RawCoverageMappingReader Reader(Coverage, FilenameRefs, FuncFiles,
-                                  Expressions, Regions);
-  if (Reader.read())
-    // ASSERT doesn't work here, we'll just return an empty vector.
-    Regions.clear();
-  return Regions;
-}
+struct CoverageMappingTest : ::testing::Test {
+  StringMap<unsigned> Files;
+  unsigned NextFile;
+  std::vector<CounterMappingRegion> InputCMRs;
+
+  std::vector<StringRef> OutputFiles;
+  std::vector<CounterExpression> OutputExpressions;
+  std::vector<CounterMappingRegion> OutputCMRs;
+
+  InstrProfWriter ProfileWriter;
+  std::unique_ptr<IndexedInstrProfReader> ProfileReader;
+
+  std::unique_ptr<CoverageMapping> LoadedCoverage;
+
+  void SetUp() override {
+    NextFile = 0;
+  }
+
+  unsigned getFile(StringRef Name) {
+    auto R = Files.find(Name);
+    if (R != Files.end())
+      return R->second;
+    Files[Name] = NextFile;
+    return NextFile++;
+  }
+
+  void addCMR(Counter C, StringRef File, unsigned LS, unsigned CS, unsigned LE,
+              unsigned CE) {
+    InputCMRs.push_back(
+        CounterMappingRegion::makeRegion(C, getFile(File), LS, CS, LE, CE));
+  }
+
+  void addExpansionCMR(StringRef File, StringRef ExpandedFile, unsigned LS,
+                       unsigned CS, unsigned LE, unsigned CE) {
+    InputCMRs.push_back(CounterMappingRegion::makeExpansion(
+        getFile(File), getFile(ExpandedFile), LS, CS, LE, CE));
+  }
+
+  std::string writeCoverageRegions() {
+    SmallVector<unsigned, 8> FileIDs;
+    for (const auto &E : Files)
+      FileIDs.push_back(E.getValue());
+    std::string Coverage;
+    llvm::raw_string_ostream OS(Coverage);
+    CoverageMappingWriter(FileIDs, None, InputCMRs).write(OS);
+    return OS.str();
+  }
+
+  void readCoverageRegions(std::string Coverage) {
+    SmallVector<StringRef, 8> Filenames;
+    for (const auto &E : Files)
+      Filenames.push_back(E.getKey());
+    RawCoverageMappingReader Reader(Coverage, Filenames, OutputFiles,
+                                    OutputExpressions, OutputCMRs);
+    ASSERT_TRUE(NoError(Reader.read()));
+  }
+
+  void readProfCounts() {
+    auto Profile = ProfileWriter.writeBuffer();
+    auto ReaderOrErr = IndexedInstrProfReader::create(std::move(Profile));
+    ASSERT_TRUE(NoError(ReaderOrErr.getError()));
+    ProfileReader = std::move(ReaderOrErr.get());
+  }
+
+  void loadCoverageMapping(StringRef FuncName, uint64_t Hash) {
+    std::string Regions = writeCoverageRegions();
+    readCoverageRegions(Regions);
+
+    SmallVector<StringRef, 8> Filenames;
+    for (const auto &E : Files)
+      Filenames.push_back(E.getKey());
+    OneFunctionCoverageReader CovReader(FuncName, Hash, Filenames, OutputCMRs);
+    auto CoverageOrErr = CoverageMapping::load(CovReader, *ProfileReader);
+    ASSERT_TRUE(NoError(CoverageOrErr.getError()));
+    LoadedCoverage = std::move(CoverageOrErr.get());
+  }
+};
+
+TEST_F(CoverageMappingTest, basic_write_read) {
+  addCMR(Counter::getCounter(0), "foo", 1, 1, 1, 1);
+  addCMR(Counter::getCounter(1), "foo", 2, 1, 2, 2);
+  addCMR(Counter::getZero(),     "foo", 3, 1, 3, 4);
+  addCMR(Counter::getCounter(2), "foo", 4, 1, 4, 8);
+  addCMR(Counter::getCounter(3), "bar", 1, 2, 3, 4);
+  std::string Coverage = writeCoverageRegions();
+  readCoverageRegions(Coverage);
 
-TEST(CoverageMappingTest, basic_write_read) {
-  int NumFiles = 2;
-  CounterMappingRegion InputRegions[] = {
-      CounterMappingRegion::makeRegion(Counter::getCounter(0), 0, 1, 1, 1, 1),
-      CounterMappingRegion::makeRegion(Counter::getCounter(1), 0, 2, 1, 2, 2),
-      CounterMappingRegion::makeRegion(Counter::getZero(), 0, 3, 1, 3, 4),
-      CounterMappingRegion::makeRegion(Counter::getCounter(2), 0, 4, 1, 4, 8),
-      CounterMappingRegion::makeRegion(Counter::getCounter(3), 1, 1, 2, 3, 4),
-  };
-  std::string Coverage = writeCoverage(InputRegions, NumFiles);
-  std::vector<CounterMappingRegion> OutputRegions =
-      readCoverageRegions(Coverage, NumFiles);
-  ASSERT_FALSE(OutputRegions.empty());
-
-  size_t N = makeArrayRef(InputRegions).size();
-  ASSERT_EQ(N, OutputRegions.size());
+  size_t N = makeArrayRef(InputCMRs).size();
+  ASSERT_EQ(N, OutputCMRs.size());
   for (size_t I = 0; I < N; ++I) {
-    ASSERT_EQ(InputRegions[I].Count, OutputRegions[I].Count);
-    ASSERT_EQ(InputRegions[I].FileID, OutputRegions[I].FileID);
-    ASSERT_EQ(InputRegions[I].startLoc(), OutputRegions[I].startLoc());
-    ASSERT_EQ(InputRegions[I].endLoc(), OutputRegions[I].endLoc());
-    ASSERT_EQ(InputRegions[I].Kind, OutputRegions[I].Kind);
+    ASSERT_EQ(InputCMRs[I].Count,      OutputCMRs[I].Count);
+    ASSERT_EQ(InputCMRs[I].FileID,     OutputCMRs[I].FileID);
+    ASSERT_EQ(InputCMRs[I].startLoc(), OutputCMRs[I].startLoc());
+    ASSERT_EQ(InputCMRs[I].endLoc(),   OutputCMRs[I].endLoc());
+    ASSERT_EQ(InputCMRs[I].Kind,       OutputCMRs[I].Kind);
   }
 }
 
-TEST(CoverageMappingTest, expansion_gets_first_counter) {
-  int NumFiles = 2;
-  CounterMappingRegion InputRegions[] = {
-      CounterMappingRegion::makeRegion(Counter::getCounter(1), 0, 10, 1, 10, 2),
-      // This starts earlier in file 0, so the expansion should get its counter.
-      CounterMappingRegion::makeRegion(Counter::getCounter(2), 0, 1, 1, 20, 1),
-      CounterMappingRegion::makeExpansion(1, 0, 3, 3, 3, 3),
-  };
-  std::string Coverage = writeCoverage(InputRegions, NumFiles);
-  std::vector<CounterMappingRegion> OutputRegions =
-      readCoverageRegions(Coverage, NumFiles);
-  ASSERT_FALSE(OutputRegions.empty());
-
-  ASSERT_EQ(CounterMappingRegion::ExpansionRegion, OutputRegions[2].Kind);
-  ASSERT_EQ(Counter::getCounter(2), OutputRegions[2].Count);
-  ASSERT_EQ(3U, OutputRegions[2].LineStart);
+TEST_F(CoverageMappingTest, expansion_gets_first_counter) {
+  addCMR(Counter::getCounter(1), "foo", 10, 1, 10, 2);
+  // This starts earlier in "foo", so the expansion should get its counter.
+  addCMR(Counter::getCounter(2), "foo", 1, 1, 20, 1);
+  addExpansionCMR("bar", "foo", 3, 3, 3, 3);
+  std::string Coverage = writeCoverageRegions();
+  readCoverageRegions(Coverage);
+
+  ASSERT_EQ(CounterMappingRegion::ExpansionRegion, OutputCMRs[2].Kind);
+  ASSERT_EQ(Counter::getCounter(2), OutputCMRs[2].Count);
+  ASSERT_EQ(3U, OutputCMRs[2].LineStart);
+}
+
+TEST_F(CoverageMappingTest, basic_coverage_iteration) {
+  InstrProfRecord Record("func", 0x1234, {30, 20, 10, 0});
+  ProfileWriter.addRecord(std::move(Record));
+  readProfCounts();
+
+  addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
+  addCMR(Counter::getCounter(1), "file1", 1, 1, 4, 7);
+  addCMR(Counter::getCounter(2), "file1", 5, 8, 9, 1);
+  addCMR(Counter::getCounter(3), "file1", 10, 10, 11, 11);
+  loadCoverageMapping("func", 0x1234);
+
+  CoverageData Data = LoadedCoverage->getCoverageForFile("file1");
+  std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
+  ASSERT_EQ(7U, Segments.size());
+  ASSERT_EQ(CoverageSegment(1, 1, 20, true),  Segments[0]);
+  ASSERT_EQ(CoverageSegment(4, 7, 30, false), Segments[1]);
+  ASSERT_EQ(CoverageSegment(5, 8, 10, true),  Segments[2]);
+  ASSERT_EQ(CoverageSegment(9, 1, 30, false), Segments[3]);
+  ASSERT_EQ(CoverageSegment(9, 9, false),     Segments[4]);
+  ASSERT_EQ(CoverageSegment(10, 10, 0, true), Segments[5]);
+  ASSERT_EQ(CoverageSegment(11, 11, false),   Segments[6]);
+}
+
+TEST_F(CoverageMappingTest, uncovered_function) {
+  readProfCounts();
+
+  addCMR(Counter::getZero(), "file1", 1, 2, 3, 4);
+  loadCoverageMapping("func", 0x1234);
+
+  CoverageData Data = LoadedCoverage->getCoverageForFile("file1");
+  std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
+  ASSERT_EQ(2U, Segments.size());
+  ASSERT_EQ(CoverageSegment(1, 2, 0, true), Segments[0]);
+  ASSERT_EQ(CoverageSegment(3, 4, false),   Segments[1]);
+}
+
+TEST_F(CoverageMappingTest, uncovered_function_with_mapping) {
+  readProfCounts();
+
+  addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
+  addCMR(Counter::getCounter(1), "file1", 1, 1, 4, 7);
+  loadCoverageMapping("func", 0x1234);
+
+  CoverageData Data = LoadedCoverage->getCoverageForFile("file1");
+  std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
+  ASSERT_EQ(3U, Segments.size());
+  ASSERT_EQ(CoverageSegment(1, 1, 0, true),  Segments[0]);
+  ASSERT_EQ(CoverageSegment(4, 7, 0, false), Segments[1]);
+  ASSERT_EQ(CoverageSegment(9, 9, false),    Segments[2]);
 }
 
+TEST_F(CoverageMappingTest, combine_regions) {
+  InstrProfRecord Record("func", 0x1234, {10, 20, 30});
+  ProfileWriter.addRecord(std::move(Record));
+  readProfCounts();
+
+  addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
+  addCMR(Counter::getCounter(1), "file1", 3, 3, 4, 4);
+  addCMR(Counter::getCounter(2), "file1", 3, 3, 4, 4);
+  loadCoverageMapping("func", 0x1234);
+
+  CoverageData Data = LoadedCoverage->getCoverageForFile("file1");
+  std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
+  ASSERT_EQ(4U, Segments.size());
+  ASSERT_EQ(CoverageSegment(1, 1, 10, true), Segments[0]);
+  ASSERT_EQ(CoverageSegment(3, 3, 50, true), Segments[1]);
+  ASSERT_EQ(CoverageSegment(4, 4, 10, false), Segments[2]);
+  ASSERT_EQ(CoverageSegment(9, 9, false), Segments[3]);
+}
+
+TEST_F(CoverageMappingTest, dont_combine_expansions) {
+  InstrProfRecord Record("func", 0x1234, {10, 20});
+  ProfileWriter.addRecord(std::move(Record));
+  readProfCounts();
+
+  addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
+  addCMR(Counter::getCounter(1), "file1", 3, 3, 4, 4);
+  addCMR(Counter::getCounter(1), "include1", 6, 6, 7, 7);
+  addExpansionCMR("file1", "include1", 3, 3, 4, 4);
+  loadCoverageMapping("func", 0x1234);
+
+  CoverageData Data = LoadedCoverage->getCoverageForFile("file1");
+  std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
+  ASSERT_EQ(4U, Segments.size());
+  ASSERT_EQ(CoverageSegment(1, 1, 10, true), Segments[0]);
+  ASSERT_EQ(CoverageSegment(3, 3, 20, true), Segments[1]);
+  ASSERT_EQ(CoverageSegment(4, 4, 10, false), Segments[2]);
+  ASSERT_EQ(CoverageSegment(9, 9, false), Segments[3]);
+}
+
+TEST_F(CoverageMappingTest, strip_filename_prefix) {
+  InstrProfRecord Record("file1:func", 0x1234, {10});
+  ProfileWriter.addRecord(std::move(Record));
+  readProfCounts();
+
+  addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
+  loadCoverageMapping("file1:func", 0x1234);
+
+  std::vector<std::string> Names;
+  for (const auto &Func : LoadedCoverage->getCoveredFunctions())
+    Names.push_back(Func.Name);
+  ASSERT_EQ(1U, Names.size());
+  ASSERT_EQ("func", Names[0]);
+}
 
 } // end anonymous namespace