#include "llvm/Support/LineIterator.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/OnDiskHashTable.h"
+#include "llvm/Support/raw_ostream.h"
#include <iterator>
namespace llvm {
private:
/// The profile data file contents.
std::unique_ptr<MemoryBuffer> DataBuffer;
-
bool ShouldSwapBytes;
uint64_t CountersDelta;
uint64_t NamesDelta;
const RawInstrProf::ProfileData<IntPtrT> *DataEnd;
const uint64_t *CountersStart;
const char *NamesStart;
+ const uint8_t *ValueDataStart;
const char *ProfileEnd;
+ uint32_t ValueKindLast;
+ uint32_t CurValueDataSize;
+
+ // String table for holding a unique copy of all the strings in the profile.
+ InstrProfStringTable StringTable;
+ InstrProfRecord::ValueMapType FunctionPtrToNameMap;
RawInstrProfReader(const RawInstrProfReader &) = delete;
RawInstrProfReader &operator=(const RawInstrProfReader &) = delete;
private:
std::error_code readNextHeader(const char *CurrentPos);
std::error_code readHeader(const RawInstrProf::Header &Header);
- template <class IntT>
- IntT swap(IntT Int) const {
+ template <class IntT> IntT swap(IntT Int) const {
return ShouldSwapBytes ? sys::getSwappedBytes(Int) : Int;
}
+ support::endianness getDataEndianness() const {
+ support::endianness HostEndian = getHostEndianness();
+ if (!ShouldSwapBytes)
+ return HostEndian;
+ if (HostEndian == support::little)
+ return support::big;
+ else
+ return support::little;
+ }
+ inline uint8_t getNumPaddingBytes(uint64_t SizeInBytes) {
+ return 7 & (sizeof(uint64_t) - SizeInBytes % sizeof(uint64_t));
+ }
std::error_code readName(InstrProfRecord &Record);
std::error_code readFuncHash(InstrProfRecord &Record);
std::error_code readRawCounts(InstrProfRecord &Record);
+ std::error_code readValueProfilingData(InstrProfRecord &Record);
bool atEnd() const { return Data == DataEnd; }
- void advanceData() { Data++; }
+ void advanceData() {
+ Data++;
+ ValueDataStart += CurValueDataSize;
+ }
const uint64_t *getCounter(IntPtrT CounterPtr) const {
ptrdiff_t Offset = (swap(CounterPtr) - CountersDelta) / sizeof(uint64_t);
return StringRef((const char *)D, N);
}
- bool ReadValueProfilingData(const unsigned char *&D,
+ bool readValueProfilingData(const unsigned char *&D,
const unsigned char *const End);
data_type ReadData(StringRef K, const unsigned char *D, offset_type N);
}
};
-class InstrProfReaderIndex {
- private:
- typedef OnDiskIterableChainedHashTable<InstrProfLookupTrait> IndexType;
+struct InstrProfReaderIndexBase {
+ // Read all the profile records with the same key pointed to the current
+ // iterator.
+ virtual std::error_code getRecords(ArrayRef<InstrProfRecord> &Data) = 0;
+ // Read all the profile records with the key equal to FuncName
+ virtual std::error_code getRecords(StringRef FuncName,
+ ArrayRef<InstrProfRecord> &Data) = 0;
+ virtual void advanceToNextKey() = 0;
+ virtual bool atEnd() const = 0;
+ virtual void setValueProfDataEndianness(support::endianness Endianness) = 0;
+ virtual ~InstrProfReaderIndexBase() {}
+ virtual uint64_t getVersion() const = 0;
+};
+
+typedef OnDiskIterableChainedHashTable<InstrProfLookupTrait>
+ OnDiskHashTableImplV3;
- std::unique_ptr<IndexType> Index;
- IndexType::data_iterator RecordIterator;
+template <typename HashTableImpl>
+class InstrProfReaderIndex : public InstrProfReaderIndexBase {
+
+private:
+ std::unique_ptr<HashTableImpl> HashTable;
+ typename HashTableImpl::data_iterator RecordIterator;
uint64_t FormatVersion;
// String table for holding a unique copy of all the strings in the profile.
InstrProfStringTable StringTable;
- public:
- InstrProfReaderIndex() : Index(nullptr) {}
- void Init(const unsigned char *Buckets, const unsigned char *const Payload,
- const unsigned char *const Base, IndexedInstrProf::HashT HashType,
- uint64_t Version);
+public:
+ InstrProfReaderIndex(const unsigned char *Buckets,
+ const unsigned char *const Payload,
+ const unsigned char *const Base,
+ IndexedInstrProf::HashT HashType, uint64_t Version);
- // Read all the pofile records with the same key pointed to the current
- // iterator.
- std::error_code getRecords(ArrayRef<InstrProfRecord> &Data);
- // Read all the profile records with the key equal to FuncName
+ std::error_code getRecords(ArrayRef<InstrProfRecord> &Data) override;
std::error_code getRecords(StringRef FuncName,
- ArrayRef<InstrProfRecord> &Data);
-
- void advanceToNextKey() { RecordIterator++; }
- bool atEnd() const { return RecordIterator == Index->data_end(); }
- // Used for testing purpose only.
- void setValueProfDataEndianness(support::endianness Endianness) {
- Index->getInfoObj().setValueProfDataEndianness(Endianness);
+ ArrayRef<InstrProfRecord> &Data) override;
+ void advanceToNextKey() override { RecordIterator++; }
+ bool atEnd() const override {
+ return RecordIterator == HashTable->data_end();
+ }
+ void setValueProfDataEndianness(support::endianness Endianness) override {
+ HashTable->getInfoObj().setValueProfDataEndianness(Endianness);
}
+ ~InstrProfReaderIndex() override {}
+ uint64_t getVersion() const override { return FormatVersion; }
};
/// Reader for the indexed binary instrprof format.
/// The profile data file contents.
std::unique_ptr<MemoryBuffer> DataBuffer;
/// The index into the profile data.
- InstrProfReaderIndex Index;
+ std::unique_ptr<InstrProfReaderIndexBase> Index;
/// The maximal execution count among all functions.
uint64_t MaxFunctionCount;
IndexedInstrProfReader(const IndexedInstrProfReader &) = delete;
IndexedInstrProfReader &operator=(const IndexedInstrProfReader &) = delete;
- public:
+public:
+ uint64_t getVersion() const { return Index->getVersion(); }
IndexedInstrProfReader(std::unique_ptr<MemoryBuffer> DataBuffer)
- : DataBuffer(std::move(DataBuffer)), Index() {}
+ : DataBuffer(std::move(DataBuffer)), Index(nullptr) {}
/// Return true if the given buffer is in an indexed instrprof format.
static bool hasFormat(const MemoryBuffer &DataBuffer);
/// Fill Counts with the profile data for the given function name.
std::error_code getFunctionCounts(StringRef FuncName, uint64_t FuncHash,
std::vector<uint64_t> &Counts);
+
/// Return the maximum of all known function counts.
uint64_t getMaximumFunctionCount() { return MaxFunctionCount; }
// Used for testing purpose only.
void setValueProfDataEndianness(support::endianness Endianness) {
- Index.setValueProfDataEndianness(Endianness);
+ Index->setValueProfDataEndianness(Endianness);
}
};