return "Success";
case instrprof_error::eof:
return "End of File";
+ case instrprof_error::unrecognized_format:
+ return "Unrecognized instrumentation profile encoding format";
case instrprof_error::bad_magic:
- return "Invalid profile data (bad magic)";
+ return "Invalid instrumentation profile data (bad magic)";
case instrprof_error::bad_header:
- return "Invalid profile data (file header is corrupt)";
+ return "Invalid instrumentation profile data (file header is corrupt)";
case instrprof_error::unsupported_version:
- return "Unsupported profiling format version";
+ return "Unsupported instrumentation profile format version";
case instrprof_error::unsupported_hash_type:
- return "Unsupported profiling hash";
+ return "Unsupported instrumentation profile hash type";
case instrprof_error::too_large:
return "Too much profile data";
case instrprof_error::truncated:
return "Truncated profile data";
case instrprof_error::malformed:
- return "Malformed profile data";
+ return "Malformed instrumentation profile data";
case instrprof_error::unknown_function:
return "No profile data available for function";
case instrprof_error::hash_mismatch:
GlobalVariable *createPGOFuncNameVar(Function &F, StringRef FuncName) {
return createPGOFuncNameVar(*F.getParent(), F.getLinkage(), FuncName);
}
+
+namespace IndexedInstrProf {
+
+uint32_t ValueProfRecord::getHeaderSize(uint32_t NumValueSites) {
+ uint32_t Size = offsetof(ValueProfRecord, SiteCountArray) +
+ sizeof(uint8_t) * NumValueSites;
+ // Round the size to multiple of 8 bytes.
+ Size = (Size + 7) & ~7;
+ return Size;
+}
+
+uint32_t ValueProfRecord::getSize(uint32_t NumValueSites,
+ uint32_t NumValueData) {
+ return getHeaderSize(NumValueSites) +
+ sizeof(InstrProfValueData) * NumValueData;
+}
+
+void ValueProfRecord::deserializeTo(InstrProfRecord &Record,
+ InstrProfRecord::ValueMapType *VMap) {
+ Record.reserveSites(Kind, NumValueSites);
+
+ InstrProfValueData *ValueData = this->getValueData();
+ for (uint64_t VSite = 0; VSite < NumValueSites; ++VSite) {
+ uint8_t ValueDataCount = this->SiteCountArray[VSite];
+ Record.addValueData(Kind, VSite, ValueData, ValueDataCount, VMap);
+ ValueData += ValueDataCount;
+ }
+}
+
+void ValueProfRecord::serializeFrom(const InstrProfRecord &Record,
+ uint32_t ValueKind,
+ uint32_t NumValueSites) {
+ Kind = ValueKind;
+ this->NumValueSites = NumValueSites;
+ InstrProfValueData *DstVD = getValueData();
+ for (uint32_t S = 0; S < NumValueSites; S++) {
+ uint32_t ND = Record.getNumValueDataForSite(ValueKind, S);
+ SiteCountArray[S] = ND;
+ std::unique_ptr<InstrProfValueData[]> SrcVD =
+ Record.getValueForSite(ValueKind, S);
+ for (uint32_t I = 0; I < ND; I++) {
+ DstVD[I] = SrcVD[I];
+ switch (ValueKind) {
+ case IPVK_IndirectCallTarget:
+ DstVD[I].Value = ComputeHash(HashType, (const char *)DstVD[I].Value);
+ break;
+ default:
+ llvm_unreachable("value kind not handled !");
+ }
+ }
+ DstVD += ND;
+ }
+}
+
+template <class T>
+static T swapToHostOrder(const unsigned char *&D, support::endianness Orig) {
+ using namespace support;
+ if (Orig == little)
+ return endian::readNext<T, little, unaligned>(D);
+ else
+ return endian::readNext<T, big, unaligned>(D);
+}
+
+// For writing/serializing, Old is the host endianness, and New is
+// byte order intended on disk. For Reading/deserialization, Old
+// is the on-disk source endianness, and New is the host endianness.
+void ValueProfRecord::swapBytes(support::endianness Old,
+ support::endianness New) {
+ using namespace support;
+ if (Old == New)
+ return;
+
+ if (getHostEndianness() != Old) {
+ sys::swapByteOrder<uint32_t>(NumValueSites);
+ sys::swapByteOrder<uint32_t>(Kind);
+ }
+ uint32_t ND = getNumValueData();
+ InstrProfValueData *VD = getValueData();
+
+ // No need to swap byte array: SiteCountArrray.
+ for (uint32_t I = 0; I < ND; I++) {
+ sys::swapByteOrder<uint64_t>(VD[I].Value);
+ sys::swapByteOrder<uint64_t>(VD[I].Count);
+ }
+ if (getHostEndianness() == Old) {
+ sys::swapByteOrder<uint32_t>(NumValueSites);
+ sys::swapByteOrder<uint32_t>(Kind);
+ }
+}
+
+uint32_t ValueProfData::getSize(const InstrProfRecord &Record) {
+ uint32_t TotalSize = sizeof(ValueProfData);
+ uint32_t NumValueKinds = Record.getNumValueKinds();
+ if (NumValueKinds == 0)
+ return TotalSize;
+
+ for (uint32_t Kind = IPVK_First; Kind <= IPVK_Last; Kind++) {
+ uint32_t NumValueSites = Record.getNumValueSites(Kind);
+ if (!NumValueSites)
+ continue;
+ TotalSize +=
+ ValueProfRecord::getSize(NumValueSites, Record.getNumValueData(Kind));
+ }
+ return TotalSize;
+}
+
+void ValueProfData::deserializeTo(InstrProfRecord &Record,
+ InstrProfRecord::ValueMapType *VMap) {
+ if (NumValueKinds == 0)
+ return;
+
+ ValueProfRecord *VR = getFirstValueProfRecord();
+ for (uint32_t K = 0; K < NumValueKinds; K++) {
+ VR->deserializeTo(Record, VMap);
+ VR = VR->getNext();
+ }
+}
+
+static std::unique_ptr<ValueProfData> AllocValueProfData(uint32_t TotalSize) {
+ return std::unique_ptr<ValueProfData>(new (::operator new(TotalSize))
+ ValueProfData());
+}
+
+std::unique_ptr<ValueProfData>
+ValueProfData::serializeFrom(const InstrProfRecord &Record) {
+ uint32_t TotalSize = getSize(Record);
+
+ std::unique_ptr<ValueProfData> VPD = AllocValueProfData(TotalSize);
+
+ VPD->TotalSize = TotalSize;
+ VPD->NumValueKinds = Record.getNumValueKinds();
+ ValueProfRecord *VR = VPD->getFirstValueProfRecord();
+ for (uint32_t Kind = IPVK_First; Kind <= IPVK_Last; Kind++) {
+ uint32_t NumValueSites = Record.getNumValueSites(Kind);
+ if (!NumValueSites)
+ continue;
+ VR->serializeFrom(Record, Kind, NumValueSites);
+ VR = VR->getNext();
+ }
+ return VPD;
+}
+
+ErrorOr<std::unique_ptr<ValueProfData>>
+ValueProfData::getValueProfData(const unsigned char *D,
+ const unsigned char *const BufferEnd,
+ support::endianness Endianness) {
+ using namespace support;
+ if (D + sizeof(ValueProfData) > BufferEnd)
+ return instrprof_error::truncated;
+
+ const unsigned char *Header = D;
+ uint32_t TotalSize = swapToHostOrder<uint32_t>(Header, Endianness);
+ uint32_t NumValueKinds = swapToHostOrder<uint32_t>(Header, Endianness);
+
+ if (D + TotalSize > BufferEnd)
+ return instrprof_error::too_large;
+ if (NumValueKinds > IPVK_Last + 1)
+ return instrprof_error::malformed;
+ // Total size needs to be mulltiple of quadword size.
+ if (TotalSize % sizeof(uint64_t))
+ return instrprof_error::malformed;
+
+ std::unique_ptr<ValueProfData> VPD = AllocValueProfData(TotalSize);
+
+ memcpy(VPD.get(), D, TotalSize);
+ // Byte swap.
+ VPD->swapBytesToHost(Endianness);
+
+ // Data integrety check:
+ ValueProfRecord *VR = VPD->getFirstValueProfRecord();
+ for (uint32_t K = 0; K < VPD->NumValueKinds; K++) {
+ if (VR->Kind > IPVK_Last)
+ return instrprof_error::malformed;
+ VR = VR->getNext();
+ if ((char *)VR - (char *)VPD.get() > (ptrdiff_t)TotalSize)
+ return instrprof_error::malformed;
+ }
+
+ return std::move(VPD);
+}
+
+void ValueProfData::swapBytesToHost(support::endianness Endianness) {
+ using namespace support;
+ if (Endianness == getHostEndianness())
+ return;
+
+ sys::swapByteOrder<uint32_t>(TotalSize);
+ sys::swapByteOrder<uint32_t>(NumValueKinds);
+
+ ValueProfRecord *VR = getFirstValueProfRecord();
+ for (uint32_t K = 0; K < NumValueKinds; K++) {
+ VR->swapBytes(Endianness, getHostEndianness());
+ VR = VR->getNext();
+ }
+}
+
+void ValueProfData::swapBytesFromHost(support::endianness Endianness) {
+ using namespace support;
+ if (Endianness == getHostEndianness())
+ return;
+
+ ValueProfRecord *VR = getFirstValueProfRecord();
+ for (uint32_t K = 0; K < NumValueKinds; K++) {
+ ValueProfRecord *NVR = VR->getNext();
+ VR->swapBytes(getHostEndianness(), Endianness);
+ VR = NVR;
+ }
+ sys::swapByteOrder<uint32_t>(TotalSize);
+ sys::swapByteOrder<uint32_t>(NumValueKinds);
+}
+
+ValueProfRecord *ValueProfData::getFirstValueProfRecord() {
+ return reinterpret_cast<ValueProfRecord *>((char *)this +
+ sizeof(ValueProfData));
+}
+
+uint32_t ValueProfRecord::getNumValueData() const {
+ uint32_t NumValueData = 0;
+ for (uint32_t I = 0; I < NumValueSites; I++)
+ NumValueData += SiteCountArray[I];
+ return NumValueData;
+}
+
+ValueProfRecord *ValueProfRecord::getNext() {
+ return reinterpret_cast<ValueProfRecord *>((char *)this + getSize());
+}
+
+InstrProfValueData *ValueProfRecord::getValueData() {
+ return reinterpret_cast<InstrProfValueData *>((char *)this +
+ getHeaderSize(NumValueSites));
+}
+
+} // End of IndexedInstrProf namespace.
}
projects / oota-llvm.git / blobdiff