#ifndef LLVM_PROFILEDATA_INSTRPROF_H_
#define LLVM_PROFILEDATA_INSTRPROF_H_
+#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/StringSet.h"
-#include "llvm/ADT/STLExtras.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/ProfileData/InstrProfData.inc"
#include "llvm/Support/Endian.h"
/// Return the name of the section containing function coverage mapping
/// data.
inline StringRef getInstrProfCoverageSectionName(bool AddSegment) {
- return AddSegment ? "__DATA,__llvm_covmap" : "__llvm_covmap";
+ return AddSegment ? "__DATA," INSTR_PROF_COVMAP_SECT_NAME_STR
+ : INSTR_PROF_COVMAP_SECT_NAME_STR;
}
/// Return the name prefix of variables containing instrumented function names.
-inline StringRef getInstrProfNameVarPrefix() { return "__llvm_profile_name_"; }
+inline StringRef getInstrProfNameVarPrefix() { return "__profn_"; }
/// Return the name prefix of variables containing per-function control data.
-inline StringRef getInstrProfDataVarPrefix() { return "__llvm_profile_data_"; }
+inline StringRef getInstrProfDataVarPrefix() { return "__profd_"; }
/// Return the name prefix of profile counter variables.
-inline StringRef getInstrProfCountersVarPrefix() {
- return "__llvm_profile_counters_";
-}
+inline StringRef getInstrProfCountersVarPrefix() { return "__profc_"; }
/// Return the name prefix of the COMDAT group for instrumentation variables
/// associated with a COMDAT function.
-inline StringRef getInstrProfComdatPrefix() { return "__llvm_profile_vars_"; }
+inline StringRef getInstrProfComdatPrefix() { return "__profv_"; }
/// Return the name of a covarage mapping variable (internal linkage)
/// for each instrumented source module. Such variables are allocated
return "__llvm_coverage_mapping";
}
+/// Return the name of the internal variable recording the array
+/// of PGO name vars referenced by the coverage mapping, The owning
+/// functions of those names are not emitted by FE (e.g, unused inline
+/// functions.)
+inline StringRef getCoverageNamesVarName() { return "__llvm_coverage_names"; }
+
/// Return the name of function that registers all the per-function control
/// data at program startup time by calling __llvm_register_function. This
/// function has internal linkage and is called by __llvm_profile_init
/// Return the modified name for function \c F suitable to be
/// used the key for profile lookup.
-std::string getPGOFuncName(const Function &F);
+std::string getPGOFuncName(const Function &F,
+ uint64_t Version = INSTR_PROF_INDEX_VERSION);
/// Return the modified name for a function suitable to be
/// used the key for profile lookup. The function's original
/// The function is defined in module \c FileName.
std::string getPGOFuncName(StringRef RawFuncName,
GlobalValue::LinkageTypes Linkage,
- StringRef FileName);
+ StringRef FileName,
+ uint64_t Version = INSTR_PROF_INDEX_VERSION);
/// Create and return the global variable for function name used in PGO
/// instrumentation. \c FuncName is the name of the function returned
GlobalVariable *createPGOFuncNameVar(Module &M,
GlobalValue::LinkageTypes Linkage,
StringRef FuncName);
+/// Return the initializer in string of the PGO name var \c NameVar.
+StringRef getPGOFuncNameVarInitializer(GlobalVariable *NameVar);
+
+/// Given a PGO function name, remove the filename prefix and return
+/// the original (static) function name.
+StringRef getFuncNameWithoutPrefix(StringRef PGOFuncName, StringRef FileName);
+
+/// Given a vector of strings (function PGO names) \c NameStrs, the
+/// method generates a combined string \c Result thatis ready to be
+/// serialized. The \c Result string is comprised of three fields:
+/// The first field is the legnth of the uncompressed strings, and the
+/// the second field is the length of the zlib-compressed string.
+/// Both fields are encoded in ULEB128. If \c doCompress is false, the
+/// third field is the uncompressed strings; otherwise it is the
+/// compressed string. When the string compression is off, the
+/// second field will have value zero.
+int collectPGOFuncNameStrings(const std::vector<std::string> &NameStrs,
+ bool doCompression, std::string &Result);
+/// Produce \c Result string with the same format described above. The input
+/// is vector of PGO function name variables that are referenced.
+int collectPGOFuncNameStrings(const std::vector<GlobalVariable *> &NameVars,
+ std::string &Result);
+class InstrProfSymtab;
+/// \c NameStrings is a string composed of one of more sub-strings encoded in
+/// the
+/// format described above. The substrings are seperated by 0 or more zero
+/// bytes.
+/// This method decodes the string and populates the \c Symtab.
+int readPGOFuncNameStrings(StringRef NameStrings, InstrProfSymtab &Symtab);
const std::error_category &instrprof_category();
return std::error_code(static_cast<int>(E), instrprof_category());
}
+inline instrprof_error MergeResult(instrprof_error &Accumulator,
+ instrprof_error Result) {
+ // Prefer first error encountered as later errors may be secondary effects of
+ // the initial problem.
+ if (Accumulator == instrprof_error::success &&
+ Result != instrprof_error::success)
+ Accumulator = Result;
+ return Accumulator;
+}
+
enum InstrProfValueKind : uint32_t {
#define VALUE_PROF_KIND(Enumerator, Value) Enumerator = Value,
#include "llvm/ProfileData/InstrProfData.inc"
};
-struct InstrProfStringTable {
- // Set of string values in profiling data.
- StringSet<> StringValueSet;
- InstrProfStringTable() { StringValueSet.clear(); }
- // Get a pointer to internal storage of a string in set
- const char *getStringData(StringRef Str) {
- auto Result = StringValueSet.find(Str);
- return (Result == StringValueSet.end()) ? nullptr : Result->first().data();
+namespace object {
+class SectionRef;
+}
+
+namespace IndexedInstrProf {
+uint64_t ComputeHash(StringRef K);
+}
+
+/// A symbol table used for function PGO name look-up with keys
+/// (such as pointers, md5hash values) to the function. A function's
+/// PGO name or name's md5hash are used in retrieving the profile
+/// data of the function. See \c getPGOFuncName() method for details
+/// on how PGO name is formed.
+class InstrProfSymtab {
+public:
+ typedef std::vector<std::pair<uint64_t, uint64_t>> AddrHashMap;
+
+private:
+ StringRef Data;
+ uint64_t Address;
+ // A map from MD5 hash keys to function name strings.
+ std::vector<std::pair<uint64_t, std::string>> HashNameMap;
+ // A map from function runtime address to function name MD5 hash.
+ // This map is only populated and used by raw instr profile reader.
+ AddrHashMap AddrToMD5Map;
+
+public:
+ InstrProfSymtab() : Data(), Address(0), HashNameMap(), AddrToMD5Map() {}
+
+ /// Create InstrProfSymtab from an object file section which
+ /// contains function PGO names that are uncompressed.
+ /// This interface is used by CoverageMappingReader.
+ std::error_code create(object::SectionRef &Section);
+ /// This interface is used by reader of CoverageMapping test
+ /// format.
+ inline std::error_code create(StringRef D, uint64_t BaseAddr);
+ /// \c NameStrings is a string composed of one of more sub-strings
+ /// encoded in the format described above. The substrings are
+ /// seperated by 0 or more zero bytes. This method decodes the
+ /// string and populates the \c Symtab.
+ inline std::error_code create(StringRef NameStrings);
+ /// Create InstrProfSymtab from a set of names iteratable from
+ /// \p IterRange. This interface is used by IndexedProfReader.
+ template <typename NameIterRange> void create(const NameIterRange &IterRange);
+ // If the symtab is created by a series of calls to \c addFuncName, \c
+ // finalizeSymtab needs to be called before looking up function names.
+ // This is required because the underlying map is a vector (for space
+ // efficiency) which needs to be sorted.
+ inline void finalizeSymtab();
+ /// Update the symtab by adding \p FuncName to the table. This interface
+ /// is used by the raw and text profile readers.
+ void addFuncName(StringRef FuncName) {
+ HashNameMap.push_back(std::make_pair(
+ IndexedInstrProf::ComputeHash(FuncName), FuncName.str()));
}
- // Insert a string to StringTable
- const char *insertString(StringRef Str) {
- auto Result = StringValueSet.insert(Str);
- return Result.first->first().data();
+ /// Map a function address to its name's MD5 hash. This interface
+ /// is only used by the raw profiler reader.
+ void mapAddress(uint64_t Addr, uint64_t MD5Val) {
+ AddrToMD5Map.push_back(std::make_pair(Addr, MD5Val));
}
+ AddrHashMap &getAddrHashMap() { return AddrToMD5Map; }
+ /// Return function's PGO name from the function name's symbol
+ /// address in the object file. If an error occurs, return
+ /// an empty string.
+ StringRef getFuncName(uint64_t FuncNameAddress, size_t NameSize);
+ /// Return function's PGO name from the name's md5 hash value.
+ /// If not found, return an empty string.
+ inline StringRef getFuncName(uint64_t FuncMD5Hash);
};
+std::error_code InstrProfSymtab::create(StringRef D, uint64_t BaseAddr) {
+ Data = D;
+ Address = BaseAddr;
+ return std::error_code();
+}
+
+std::error_code InstrProfSymtab::create(StringRef NameStrings) {
+ if (readPGOFuncNameStrings(NameStrings, *this))
+ return make_error_code(instrprof_error::malformed);
+ return std::error_code();
+}
+
+template <typename NameIterRange>
+void InstrProfSymtab::create(const NameIterRange &IterRange) {
+ for (auto Name : IterRange)
+ HashNameMap.push_back(
+ std::make_pair(IndexedInstrProf::ComputeHash(Name), Name.str()));
+ finalizeSymtab();
+}
+
+void InstrProfSymtab::finalizeSymtab() {
+ std::sort(HashNameMap.begin(), HashNameMap.end(), less_first());
+ HashNameMap.erase(std::unique(HashNameMap.begin(), HashNameMap.end()),
+ HashNameMap.end());
+ std::sort(AddrToMD5Map.begin(), AddrToMD5Map.end(), less_first());
+ AddrToMD5Map.erase(std::unique(AddrToMD5Map.begin(), AddrToMD5Map.end()),
+ AddrToMD5Map.end());
+}
+
+StringRef InstrProfSymtab::getFuncName(uint64_t FuncMD5Hash) {
+ auto Result =
+ std::lower_bound(HashNameMap.begin(), HashNameMap.end(), FuncMD5Hash,
+ [](const std::pair<uint64_t, std::string> &LHS,
+ uint64_t RHS) { return LHS.first < RHS; });
+ if (Result != HashNameMap.end())
+ return Result->second;
+ return StringRef();
+}
+
struct InstrProfValueSiteRecord {
/// Value profiling data pairs at a given value site.
std::list<InstrProfValueData> ValueData;
return left.Value < right.Value;
});
}
+ /// Sort ValueData Descending by Count
+ inline void sortByCount();
/// Merge data from another InstrProfValueSiteRecord
- void mergeValueData(InstrProfValueSiteRecord &Input) {
- this->sortByTargetValues();
- Input.sortByTargetValues();
- auto I = ValueData.begin();
- auto IE = ValueData.end();
- for (auto J = Input.ValueData.begin(), JE = Input.ValueData.end(); J != JE;
- ++J) {
- while (I != IE && I->Value < J->Value)
- ++I;
- if (I != IE && I->Value == J->Value) {
- I->Count = SaturatingAdd(I->Count, J->Count);
- ++I;
- continue;
- }
- ValueData.insert(I, *J);
- }
- }
+ /// Optionally scale merged counts by \p Weight.
+ instrprof_error merge(InstrProfValueSiteRecord &Input, uint64_t Weight = 1);
+ /// Scale up value profile data counts.
+ instrprof_error scale(uint64_t Weight);
};
/// Profiling information for a single function.
uint64_t Hash;
std::vector<uint64_t> Counts;
- typedef std::vector<std::pair<uint64_t, const char *>> ValueMapType;
+ typedef std::vector<std::pair<uint64_t, uint64_t>> ValueMapType;
/// Return the number of value profile kinds with non-zero number
/// of profile sites.
/// Reserve space for NumValueSites sites.
inline void reserveSites(uint32_t ValueKind, uint32_t NumValueSites);
/// Add ValueData for ValueKind at value Site.
- inline void addValueData(uint32_t ValueKind, uint32_t Site,
- InstrProfValueData *VData, uint32_t N,
- ValueMapType *HashKeys);
+ void addValueData(uint32_t ValueKind, uint32_t Site,
+ InstrProfValueData *VData, uint32_t N,
+ ValueMapType *ValueMap);
/// Merge the counts in \p Other into this one.
- inline instrprof_error merge(InstrProfRecord &Other);
-
- /// Used by InstrProfWriter: update the value strings to commoned strings in
- /// the writer instance.
- inline void updateStrings(InstrProfStringTable *StrTab);
-
+ /// Optionally scale merged counts by \p Weight.
+ instrprof_error merge(InstrProfRecord &Other, uint64_t Weight = 1);
+
+ /// Scale up profile counts (including value profile data) by
+ /// \p Weight.
+ instrprof_error scale(uint64_t Weight);
+
+ /// Sort value profile data (per site) by count.
+ void sortValueData() {
+ for (uint32_t Kind = IPVK_First; Kind <= IPVK_Last; ++Kind) {
+ std::vector<InstrProfValueSiteRecord> &SiteRecords =
+ getValueSitesForKind(Kind);
+ for (auto &SR : SiteRecords)
+ SR.sortByCount();
+ }
+ }
/// Clear value data entries
- inline void clearValueData() {
+ void clearValueData() {
for (uint32_t Kind = IPVK_First; Kind <= IPVK_Last; ++Kind)
getValueSitesForKind(Kind).clear();
}
// Map indirect call target name hash to name string.
uint64_t remapValue(uint64_t Value, uint32_t ValueKind,
- ValueMapType *HashKeys) {
- if (!HashKeys)
- return Value;
- switch (ValueKind) {
- case IPVK_IndirectCallTarget: {
- auto Result =
- std::lower_bound(HashKeys->begin(), HashKeys->end(), Value,
- [](const std::pair<uint64_t, const char *> &LHS,
- uint64_t RHS) { return LHS.first < RHS; });
- if (Result != HashKeys->end())
- Value = (uint64_t)Result->second;
- break;
- }
- }
- return Value;
- }
+ ValueMapType *HashKeys);
// Merge Value Profile data from Src record to this record for ValueKind.
- instrprof_error mergeValueProfData(uint32_t ValueKind, InstrProfRecord &Src) {
- uint32_t ThisNumValueSites = getNumValueSites(ValueKind);
- uint32_t OtherNumValueSites = Src.getNumValueSites(ValueKind);
- if (ThisNumValueSites != OtherNumValueSites)
- return instrprof_error::value_site_count_mismatch;
- std::vector<InstrProfValueSiteRecord> &ThisSiteRecords =
- getValueSitesForKind(ValueKind);
- std::vector<InstrProfValueSiteRecord> &OtherSiteRecords =
- Src.getValueSitesForKind(ValueKind);
- for (uint32_t I = 0; I < ThisNumValueSites; I++)
- ThisSiteRecords[I].mergeValueData(OtherSiteRecords[I]);
- return instrprof_error::success;
- }
+ // Scale merged value counts by \p Weight.
+ instrprof_error mergeValueProfData(uint32_t ValueKind, InstrProfRecord &Src,
+ uint64_t Weight);
+ // Scale up value profile data count.
+ instrprof_error scaleValueProfData(uint32_t ValueKind, uint64_t Weight);
};
uint32_t InstrProfRecord::getNumValueKinds() const {
}
}
-void InstrProfRecord::addValueData(uint32_t ValueKind, uint32_t Site,
- InstrProfValueData *VData, uint32_t N,
- ValueMapType *HashKeys) {
- for (uint32_t I = 0; I < N; I++) {
- VData[I].Value = remapValue(VData[I].Value, ValueKind, HashKeys);
- }
- std::vector<InstrProfValueSiteRecord> &ValueSites =
- getValueSitesForKind(ValueKind);
- if (N == 0)
- ValueSites.push_back(InstrProfValueSiteRecord());
- else
- ValueSites.emplace_back(VData, VData + N);
-}
-
void InstrProfRecord::reserveSites(uint32_t ValueKind, uint32_t NumValueSites) {
std::vector<InstrProfValueSiteRecord> &ValueSites =
getValueSitesForKind(ValueKind);
ValueSites.reserve(NumValueSites);
}
-void InstrProfRecord::updateStrings(InstrProfStringTable *StrTab) {
- if (!StrTab)
- return;
-
- Name = StrTab->insertString(Name);
- for (auto &VSite : IndirectCallSites)
- for (auto &VData : VSite.ValueData)
- VData.Value = (uint64_t)StrTab->insertString((const char *)VData.Value);
-}
-
-instrprof_error InstrProfRecord::merge(InstrProfRecord &Other) {
- // If the number of counters doesn't match we either have bad data
- // or a hash collision.
- if (Counts.size() != Other.Counts.size())
- return instrprof_error::count_mismatch;
-
- for (size_t I = 0, E = Other.Counts.size(); I < E; ++I) {
- if (Counts[I] + Other.Counts[I] < Counts[I])
- return instrprof_error::counter_overflow;
- Counts[I] += Other.Counts[I];
- }
-
- for (uint32_t Kind = IPVK_First; Kind <= IPVK_Last; ++Kind) {
- instrprof_error result = mergeValueProfData(Kind, Other);
- if (result != instrprof_error::success)
- return result;
- }
-
- return instrprof_error::success;
-}
-
inline support::endianness getHostEndianness() {
return sys::IsLittleEndianHost ? support::little : support::big;
}
-/// This is the header of the data structure that defines the on-disk
-/// layout of the value profile data of a particular kind for one function.
-typedef struct ValueProfRecord {
- // The kind of the value profile record.
- uint32_t Kind;
- // The number of value profile sites. It is guaranteed to be non-zero;
- // otherwise the record for this kind won't be emitted.
- uint32_t NumValueSites;
- // The first element of the array that stores the number of profiled
- // values for each value site. The size of the array is NumValueSites.
- // Since NumValueSites is greater than zero, there is at least one
- // element in the array.
- uint8_t SiteCountArray[1];
-
- // The fake declaration is for documentation purpose only.
- // Align the start of next field to be on 8 byte boundaries.
- // uint8_t Padding[X];
-
- // The array of value profile data. The size of the array is the sum
- // of all elements in SiteCountArray[].
- // InstrProfValueData ValueData[];
-
- /// Return the number of value sites.
- uint32_t getNumValueSites() const { return NumValueSites; }
- /// Read data from this record and save it to Record.
- void deserializeTo(InstrProfRecord &Record,
- InstrProfRecord::ValueMapType *VMap);
- /// In-place byte swap:
- /// Do byte swap for this instance. \c Old is the original order before
- /// the swap, and \c New is the New byte order.
- void swapBytes(support::endianness Old, support::endianness New);
-} ValueProfRecord;
-
-/// Per-function header/control data structure for value profiling
-/// data in indexed format.
-typedef struct ValueProfData {
- // Total size in bytes including this field. It must be a multiple
- // of sizeof(uint64_t).
- uint32_t TotalSize;
- // The number of value profile kinds that has value profile data.
- // In this implementation, a value profile kind is considered to
- // have profile data if the number of value profile sites for the
- // kind is not zero. More aggressively, the implementation can
- // choose to check the actual data value: if none of the value sites
- // has any profiled values, the kind can be skipped.
- uint32_t NumValueKinds;
-
- // Following are a sequence of variable length records. The prefix/header
- // of each record is defined by ValueProfRecord type. The number of
- // records is NumValueKinds.
- // ValueProfRecord Record_1;
- // ValueProfRecord Record_N;
-
- /// Return the total size in bytes of the on-disk value profile data
- /// given the data stored in Record.
- static uint32_t getSize(const InstrProfRecord &Record);
- /// Return a pointer to \c ValueProfData instance ready to be streamed.
- static std::unique_ptr<ValueProfData>
- serializeFrom(const InstrProfRecord &Record);
- /// Check the integrity of the record. Return the error code when
- /// an error is detected, otherwise return instrprof_error::success.
- instrprof_error checkIntegrity();
- /// Return a pointer to \c ValueProfileData instance ready to be read.
- /// All data in the instance are properly byte swapped. The input
- /// data is assumed to be in little endian order.
- static ErrorOr<std::unique_ptr<ValueProfData>>
- getValueProfData(const unsigned char *D, const unsigned char *const BufferEnd,
- support::endianness SrcDataEndianness);
- /// Swap byte order from \c Endianness order to host byte order.
- void swapBytesToHost(support::endianness Endianness);
- /// Swap byte order from host byte order to \c Endianness order.
- void swapBytesFromHost(support::endianness Endianness);
- /// Return the total size of \c ValueProfileData.
- uint32_t getSize() const { return TotalSize; }
- /// Read data from this data and save it to \c Record.
- void deserializeTo(InstrProfRecord &Record,
- InstrProfRecord::ValueMapType *VMap);
-} ValueProfData;
-
-/* The closure is designed to abstact away two types of value profile data:
- * - InstrProfRecord which is the primary data structure used to
- * represent profile data in host tools (reader, writer, and profile-use)
- * - value profile runtime data structure suitable to be used by C
- * runtime library.
- *
- * Both sources of data need to serialize to disk/memory-buffer in common
- * format: ValueProfData. The abstraction allows compiler-rt's raw profiler
- * writer to share * the same code with indexed profile writer.
- *
- * For documentation of the member methods below, refer to corresponding methods
- * in class InstrProfRecord.
- */
-typedef struct ValueProfRecordClosure {
- const void *Record;
- uint32_t (*GetNumValueKinds)(const void *Record);
- uint32_t (*GetNumValueSites)(const void *Record, uint32_t VKind);
- uint32_t (*GetNumValueData)(const void *Record, uint32_t VKind);
- uint32_t (*GetNumValueDataForSite)(const void *R, uint32_t VK, uint32_t S);
-
- /* After extracting the value profile data from the value profile record,
- * this method is used to map the in-memory value to on-disk value. If
- * the method is null, value will be written out untranslated.
- */
- uint64_t (*RemapValueData)(uint32_t, uint64_t Value);
- void (*GetValueForSite)(const void *R, InstrProfValueData *Dst, uint32_t K,
- uint32_t S, uint64_t (*Mapper)(uint32_t, uint64_t));
- ValueProfData *(*AllocValueProfData)(size_t TotalSizeInBytes);
-} ValueProfRecordClosure;
-
-/* A wrapper struct that represents value profile runtime data.
- * Like InstrProfRecord class which is used by profiling host tools,
- * ValueProfRuntimeRecord also implements the abstract intefaces defined in
- * ValueProfRecordClosure so that the runtime data can be serialized using
- * shared C implementation. In this structure, NumValueSites and Nodes
- * members are the primary fields while other fields hold the derived
- * information for fast implementation of closure interfaces.
- */
-typedef struct ValueProfRuntimeRecord {
- /* Number of sites for each value profile kind. */
- uint16_t *NumValueSites;
- /* An array of linked-list headers. The size of of the array is the
- * total number of value profile sites : sum(NumValueSites[*])). Each
- * linked-list stores the values profiled for a value profile site. */
- ValueProfNode **Nodes;
-
- /* Total number of value profile kinds which have at least one
- * value profile sites. */
- uint32_t NumValueKinds;
- /* An array recording the number of values tracked at each site.
- * The size of the array is TotalNumValueSites.
- */
- uint8_t *SiteCountArray[IPVK_Last + 1];
- ValueProfNode **NodesKind[IPVK_Last + 1];
-} ValueProfRuntimeRecord;
-
-/* Initialize the record for runtime value profile data. */
-void initializeValueProfRuntimeRecord(ValueProfRuntimeRecord *RuntimeRecord,
- uint16_t *NumValueSites,
- ValueProfNode **Nodes);
+// Include definitions for value profile data
+#define INSTR_PROF_VALUE_PROF_DATA
+#include "llvm/ProfileData/InstrProfData.inc"
+
+void InstrProfValueSiteRecord::sortByCount() {
+ ValueData.sort(
+ [](const InstrProfValueData &left, const InstrProfValueData &right) {
+ return left.Count > right.Count;
+ });
+ // Now truncate
+ size_t max_s = INSTR_PROF_MAX_NUM_VAL_PER_SITE;
+ if (ValueData.size() > max_s)
+ ValueData.resize(max_s);
+}
+
+/*
+* Initialize the record for runtime value profile data.
+* Return 0 if the initialization is successful, otherwise
+* return 1.
+*/
+int initializeValueProfRuntimeRecord(ValueProfRuntimeRecord *RuntimeRecord,
+ const uint16_t *NumValueSites,
+ ValueProfNode **Nodes);
/* Release memory allocated for the runtime record. */
void finalizeValueProfRuntimeRecord(ValueProfRuntimeRecord *RuntimeRecord);
/* Return a ValueProfData instance that stores the data collected at runtime. */
ValueProfData *
-serializeValueProfDataFromRT(const ValueProfRuntimeRecord *Record);
-
-
-/*! \brief Return the \c ValueProfRecord header size including the
- * padding bytes.
- */
-inline uint32_t getValueProfRecordHeaderSize(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;
-}
-
-/*! \brief Return the total size of the value profile record including the
- * header and the value data.
- */
-inline uint32_t getValueProfRecordSize(uint32_t NumValueSites,
- uint32_t NumValueData) {
- return getValueProfRecordHeaderSize(NumValueSites) +
- sizeof(InstrProfValueData) * NumValueData;
-}
-
-/*! \brief Return the pointer to the start of value data array.
- */
-inline InstrProfValueData *getValueProfRecordValueData(ValueProfRecord *This) {
- return (InstrProfValueData *)((char *)This + getValueProfRecordHeaderSize(
- This->NumValueSites));
-}
-
-/*! \brief Return the total number of value data for \c This record.
- */
-inline uint32_t getValueProfRecordNumValueData(ValueProfRecord *This) {
- uint32_t NumValueData = 0;
- uint32_t I;
- for (I = 0; I < This->NumValueSites; I++)
- NumValueData += This->SiteCountArray[I];
- return NumValueData;
-}
-
-/* \brief Use this method to advance to the next \c This \c ValueProfRecord.
- */
-inline ValueProfRecord *getValueProfRecordNext(ValueProfRecord *This) {
- uint32_t NumValueData = getValueProfRecordNumValueData(This);
- return (ValueProfRecord *)((char *)This +
- getValueProfRecordSize(This->NumValueSites,
- NumValueData));
-}
-
-/*! \brief Return the first \c ValueProfRecord instance.
- */
-inline ValueProfRecord *getFirstValueProfRecord(ValueProfData *This) {
- return (ValueProfRecord *)((char *)This + sizeof(ValueProfData));
-}
-
-
+serializeValueProfDataFromRT(const ValueProfRuntimeRecord *Record,
+ ValueProfData *Dst);
namespace IndexedInstrProf {
return endian::read<uint64_t, little, unaligned>(Result);
}
-static inline uint64_t ComputeHash(HashT Type, StringRef K) {
+inline uint64_t ComputeHash(HashT Type, StringRef K) {
switch (Type) {
case HashT::MD5:
return IndexedInstrProf::MD5Hash(K);
}
const uint64_t Magic = 0x8169666f72706cff; // "\xfflprofi\x81"
-const uint64_t Version = 3;
+const uint64_t Version = INSTR_PROF_INDEX_VERSION;
const HashT HashType = HashT::MD5;
+inline uint64_t ComputeHash(StringRef K) { return ComputeHash(HashType, K); }
+
// This structure defines the file header of the LLVM profile
// data file in indexed-format.
struct Header {
#define COVMAP_FUNC_RECORD(Type, LLVMType, Name, Init) Type Name;
#include "llvm/ProfileData/InstrProfData.inc"
};
+// Per module coverage mapping data header, i.e. CoverageMapFileHeader
+// documented above.
+struct CovMapHeader {
+#define COVMAP_HEADER(Type, LLVMType, Name, Init) Type Name;
+#include "llvm/ProfileData/InstrProfData.inc"
+};
+
LLVM_PACKED_END
+enum CoverageMappingVersion {
+ CoverageMappingVersion1 = 0,
+ // The current versin is Version1
+ CoverageMappingCurrentVersion = INSTR_PROF_COVMAP_VERSION
+};
}
} // end namespace llvm
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