#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 <string>
+#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) {
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(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());
+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);
+
+ 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
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