#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 {
InstrProfIterator begin() { return InstrProfIterator(this); }
InstrProfIterator end() { return InstrProfIterator(); }
-protected:
- /// String table for holding a unique copy of all the strings in the profile.
- InstrProfStringTable StringTable;
-
+ protected:
/// Set the current std::error_code and return same.
std::error_code error(std::error_code EC) {
LastError = EC;
TextInstrProfReader(std::unique_ptr<MemoryBuffer> DataBuffer_)
: DataBuffer(std::move(DataBuffer_)), Line(*DataBuffer, true, '#') {}
+ /// Return true if the given buffer is in text instrprof format.
+ static bool hasFormat(const MemoryBuffer &Buffer);
+
/// Read the header.
std::error_code readHeader() override { return success(); }
/// Read a single record.
private:
/// The profile data file contents.
std::unique_ptr<MemoryBuffer> DataBuffer;
-
bool ShouldSwapBytes;
uint64_t CountersDelta;
uint64_t NamesDelta;
+ uint64_t ValueDataDelta;
const RawInstrProf::ProfileData<IntPtrT> *Data;
const RawInstrProf::ProfileData<IntPtrT> *DataEnd;
const uint64_t *CountersStart;
const char *NamesStart;
+ const uint8_t *ValueDataStart;
const char *ProfileEnd;
+ uint32_t ValueKindLast;
+
+ // 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;
IntT swap(IntT Int) const {
return ShouldSwapBytes ? sys::getSwappedBytes(Int) : Int;
}
+ 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 readValueData(InstrProfRecord &Record);
+ bool atEnd() const { return Data == DataEnd; }
+ void advanceData() { Data++; }
+
const uint64_t *getCounter(IntPtrT CounterPtr) const {
ptrdiff_t Offset = (swap(CounterPtr) - CountersDelta) / sizeof(uint64_t);
return CountersStart + Offset;
ptrdiff_t Offset = (swap(NamePtr) - NamesDelta) / sizeof(char);
return NamesStart + Offset;
}
+ const uint8_t *getValueDataCounts(IntPtrT ValueCountsPtr) const {
+ ptrdiff_t Offset =
+ (swap(ValueCountsPtr) - ValueDataDelta) / sizeof(uint8_t);
+ return ValueDataStart + Offset;
+ }
+ // This accepts an already byte-swapped ValueDataPtr argument.
+ const InstrProfValueData *getValueData(IntPtrT ValueDataPtr) const {
+ ptrdiff_t Offset = (ValueDataPtr - ValueDataDelta) / sizeof(uint8_t);
+ return reinterpret_cast<const InstrProfValueData *>(ValueDataStart +
+ Offset);
+ }
};
typedef RawInstrProfReader<uint32_t> RawInstrProfReader32;
std::vector<InstrProfRecord> DataBuffer;
IndexedInstrProf::HashT HashType;
unsigned FormatVersion;
+ // Endianness of the input value profile data.
+ // It should be LE by default, but can be changed
+ // for testing purpose.
+ support::endianness ValueProfDataEndianness;
std::vector<std::pair<uint64_t, const char *>> HashKeys;
public:
InstrProfLookupTrait(IndexedInstrProf::HashT HashType, unsigned FormatVersion)
- : HashType(HashType), FormatVersion(FormatVersion) {}
+ : HashType(HashType), FormatVersion(FormatVersion),
+ ValueProfDataEndianness(support::little) {}
typedef ArrayRef<InstrProfRecord> data_type;
bool ReadValueProfilingData(const unsigned char *&D,
const unsigned char *const End);
data_type ReadData(StringRef K, const unsigned char *D, offset_type N);
+
+ // Used for testing purpose only.
+ void setValueProfDataEndianness(support::endianness Endianness) {
+ ValueProfDataEndianness = Endianness;
+ }
};
-typedef OnDiskIterableChainedHashTable<InstrProfLookupTrait>
- InstrProfReaderIndex;
+class InstrProfReaderIndex {
+ private:
+ typedef OnDiskIterableChainedHashTable<InstrProfLookupTrait> IndexType;
+
+ std::unique_ptr<IndexType> Index;
+ IndexType::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);
+
+ // 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(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);
+ }
+};
/// Reader for the indexed binary instrprof format.
class IndexedInstrProfReader : public InstrProfReader {
/// The profile data file contents.
std::unique_ptr<MemoryBuffer> DataBuffer;
/// The index into the profile data.
- std::unique_ptr<InstrProfReaderIndex> Index;
- /// Iterator over the profile data.
- InstrProfReaderIndex::data_iterator RecordIterator;
- /// The file format version of the profile data.
- uint64_t FormatVersion;
+ InstrProfReaderIndex Index;
/// The maximal execution count among all functions.
uint64_t MaxFunctionCount;
IndexedInstrProfReader(const IndexedInstrProfReader &) = delete;
IndexedInstrProfReader &operator=(const IndexedInstrProfReader &) = delete;
-public:
+
+ public:
IndexedInstrProfReader(std::unique_ptr<MemoryBuffer> DataBuffer)
- : DataBuffer(std::move(DataBuffer)), Index(nullptr) {}
+ : DataBuffer(std::move(DataBuffer)), Index() {}
/// Return true if the given buffer is in an indexed instrprof format.
static bool hasFormat(const MemoryBuffer &DataBuffer);
/// Read a single record.
std::error_code readNextRecord(InstrProfRecord &Record) override;
+ /// Return the pointer to InstrProfRecord associated with FuncName
+ /// and FuncHash
+ ErrorOr<InstrProfRecord> getInstrProfRecord(StringRef FuncName,
+ uint64_t FuncHash);
+
/// 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; }
static ErrorOr<std::unique_ptr<IndexedInstrProfReader>>
create(std::unique_ptr<MemoryBuffer> Buffer);
+
+ // Used for testing purpose only.
+ void setValueProfDataEndianness(support::endianness Endianness) {
+ Index.setValueProfDataEndianness(Endianness);
+ }
};
} // end namespace llvm
projects / oota-llvm.git / blobdiff