RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2024-11-23 19:59:48 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Retry^3 "[ProfileData] (llvm) Use Error in InstrProf and Coverage, NFC"

Browse Source 
Transition InstrProf and Coverage over to the stricter Error/Expected
interface.

Changes since the initial commit:
- Fix error message printing in llvm-profdata.
- Check errors in loadTestingFormat() + annotateAllFunctions().
- Defer error handling in InstrProfIterator to InstrProfReader.
- Remove the base ProfError class to work around an MSVC ICE.

Differential Revision: http://reviews.llvm.org/D19901

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270020 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Vedant Kumar 2016-05-19 03:54:45 +00:00
parent 658bddf628
commit c77570e062
18 changed files with 619 additions and 511 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

59
include/llvm/ProfileData/Coverage/CoverageMapping.h
View File

@ -23,13 +23,13 @@
#include "llvm/ProfileData/InstrProf.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Endian.h"
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/raw_ostream.h"
#include <system_error>
#include <tuple>
namespace llvm {
namespace coverage {
enum class coveragemap_error {
success = 0,
eof,
@ -38,14 +38,37 @@ enum class coveragemap_error {
truncated,
malformed
};
} // end of coverage namespace.
const std::error_category &coveragemap_category();
inline std::error_code make_error_code(coveragemap_error E) {
return std::error_code(static_cast<int>(E), coveragemap_category());
}
namespace std {
template <>
struct is_error_code_enum<llvm::coverage::coveragemap_error> : std::true_type {
class CoverageMapError : public ErrorInfo<CoverageMapError> {
public:
CoverageMapError(coveragemap_error Err) : Err(Err) {
assert(Err != coveragemap_error::success && "Not an error");
}
std::string message() const override;
void log(raw_ostream &OS) const override { OS << message(); }
std::error_code convertToErrorCode() const override {
return make_error_code(Err);
}
coveragemap_error get() const { return Err; }
static char ID;
private:
coveragemap_error Err;
};
}
} // end of coverage namespace.
} // end of llvm namespace
namespace llvm {
class IndexedInstrProfReader;
@ -265,7 +288,7 @@ public:
/// \brief Return the number of times that a region of code associated with
/// this counter was executed.
ErrorOr<int64_t> evaluate(const Counter &C) const;
Expected<int64_t> evaluate(const Counter &C) const;
};
/// \brief Code coverage information for a single function.
@ -415,12 +438,12 @@ class CoverageMapping {
public:
/// \brief Load the coverage mapping using the given readers.
static ErrorOr<std::unique_ptr<CoverageMapping>>
static Expected<std::unique_ptr<CoverageMapping>>
load(CoverageMappingReader &CoverageReader,
IndexedInstrProfReader &ProfileReader);
/// \brief Load the coverage mapping from the given files.
static ErrorOr<std::unique_ptr<CoverageMapping>>
static Expected<std::unique_ptr<CoverageMapping>>
load(StringRef ObjectFilename, StringRef ProfileFilename,
StringRef Arch = StringRef());
@ -466,12 +489,6 @@ public:
CoverageData getCoverageForExpansion(const ExpansionRecord &Expansion);
};
const std::error_category &coveragemap_category();
inline std::error_code make_error_code(coveragemap_error E) {
return std::error_code(static_cast<int>(E), coveragemap_category());
}
// Profile coverage map has the following layout:
// [CoverageMapFileHeader]
// [ArrayStart]
@ -501,14 +518,13 @@ template <class IntPtrT> struct CovMapFunctionRecordV1 {
}
// Return the PGO name of the function */
template <support::endianness Endian>
std::error_code getFuncName(InstrProfSymtab &ProfileNames,
StringRef &FuncName) const {
Error getFuncName(InstrProfSymtab &ProfileNames, StringRef &FuncName) const {
IntPtrT NameRef = getFuncNameRef<Endian>();
uint32_t NameS = support::endian::byte_swap<uint32_t, Endian>(NameSize);
FuncName = ProfileNames.getFuncName(NameRef, NameS);
if (NameS && FuncName.empty())
return coveragemap_error::malformed;
return std::error_code();
return make_error<CoverageMapError>(coveragemap_error::malformed);
return Error::success();
}
};
@ -530,11 +546,10 @@ struct CovMapFunctionRecord {
}
// Return the PGO name of the function */
template <support::endianness Endian>
std::error_code getFuncName(InstrProfSymtab &ProfileNames,
StringRef &FuncName) const {
Error getFuncName(InstrProfSymtab &ProfileNames, StringRef &FuncName) const {
uint64_t NameRef = getFuncNameRef<Endian>();
FuncName = ProfileNames.getFuncName(NameRef);
return std::error_code();
return Error::success();
}
};

24
include/llvm/ProfileData/Coverage/CoverageMappingReader.h
View File

@ -69,7 +69,7 @@ public:
class CoverageMappingReader {
public:
virtual std::error_code readNextRecord(CoverageMappingRecord &Record) = 0;
virtual Error readNextRecord(CoverageMappingRecord &Record) = 0;
CoverageMappingIterator begin() { return CoverageMappingIterator(this); }
CoverageMappingIterator end() { return CoverageMappingIterator(); }
virtual ~CoverageMappingReader() {}
@ -82,10 +82,10 @@ protected:
RawCoverageReader(StringRef Data) : Data(Data) {}
std::error_code readULEB128(uint64_t &Result);
std::error_code readIntMax(uint64_t &Result, uint64_t MaxPlus1);
std::error_code readSize(uint64_t &Result);
std::error_code readString(StringRef &Result);
Error readULEB128(uint64_t &Result);
Error readIntMax(uint64_t &Result, uint64_t MaxPlus1);
Error readSize(uint64_t &Result);
Error readString(StringRef &Result);
};
/// \brief Reader for the raw coverage filenames.
@ -100,7 +100,7 @@ public:
RawCoverageFilenamesReader(StringRef Data, std::vector<StringRef> &Filenames)
: RawCoverageReader(Data), Filenames(Filenames) {}
std::error_code read();
Error read();
};
/// \brief Reader for the raw coverage mapping data.
@ -125,12 +125,12 @@ public:
Filenames(Filenames), Expressions(Expressions),
MappingRegions(MappingRegions) {}
std::error_code read();
Error read();
private:
std::error_code decodeCounter(unsigned Value, Counter &C);
std::error_code readCounter(Counter &C);
std::error_code
Error decodeCounter(unsigned Value, Counter &C);
Error readCounter(Counter &C);
Error
readMappingRegionsSubArray(std::vector<CounterMappingRegion> &MappingRegions,
unsigned InferredFileID, size_t NumFileIDs);
};
@ -170,11 +170,11 @@ private:
BinaryCoverageReader() : CurrentRecord(0) {}
public:
static ErrorOr<std::unique_ptr<BinaryCoverageReader>>
static Expected<std::unique_ptr<BinaryCoverageReader>>
create(std::unique_ptr<MemoryBuffer> &ObjectBuffer,
StringRef Arch);
std::error_code readNextRecord(CoverageMappingRecord &Record) override;
Error readNextRecord(CoverageMappingRecord &Record) override;
};
} // end namespace coverage

82
include/llvm/ProfileData/InstrProf.h
View File

@ -25,7 +25,6 @@
#include "llvm/ProfileData/ProfileCommon.h"
#include "llvm/Support/Endian.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/MD5.h"
#include "llvm/Support/MathExtras.h"
#include <cstdint>
@ -204,20 +203,17 @@ StringRef getFuncNameWithoutPrefix(StringRef PGOFuncName,
/// 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.
std::error_code
collectPGOFuncNameStrings(const std::vector<std::string> &NameStrs,
bool doCompression, std::string &Result);
Error 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.
std::error_code
collectPGOFuncNameStrings(const std::vector<GlobalVariable *> &NameVars,
std::string &Result, bool doCompression = true);
Error collectPGOFuncNameStrings(const std::vector<GlobalVariable *> &NameVars,
std::string &Result, bool doCompression = true);
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.
std::error_code readPGOFuncNameStrings(StringRef NameStrings,
InstrProfSymtab &Symtab);
Error readPGOFuncNameStrings(StringRef NameStrings, InstrProfSymtab &Symtab);
enum InstrProfValueKind : uint32_t {
#define VALUE_PROF_KIND(Enumerator, Value) Enumerator = Value,
@ -284,6 +280,39 @@ inline std::error_code make_error_code(instrprof_error E) {
return std::error_code(static_cast<int>(E), instrprof_category());
}
class InstrProfError : public ErrorInfo<InstrProfError> {
public:
InstrProfError(instrprof_error Err) : Err(Err) {
assert(Err != instrprof_error::success && "Not an error");
}
std::string message() const override;
void log(raw_ostream &OS) const override { OS << message(); }
std::error_code convertToErrorCode() const override {
return make_error_code(Err);
}
instrprof_error get() const { return Err; }
/// Consume an Error and return the raw enum value contained within it. The
/// Error must either be a success value, or contain a single InstrProfError.
static instrprof_error take(Error E) {
auto Err = instrprof_error::success;
handleAllErrors(std::move(E), [&Err](const InstrProfError &IPE) {
assert(Err == instrprof_error::success && "Multiple errors encountered");
Err = IPE.get();
});
return Err;
}
static char ID;
private:
instrprof_error Err;
};
class SoftInstrProfErrors {
/// Count the number of soft instrprof_errors encountered and keep track of
/// the first such error for reporting purposes.
@ -309,6 +338,11 @@ public:
NumCountMismatches(0), NumCounterOverflows(0),
NumValueSiteCountMismatches(0) {}
~SoftInstrProfErrors() {
assert(FirstError == instrprof_error::success &&
"Unchecked soft error encountered");
}
/// Track a soft error (\p IE) and increment its associated counter.
void addError(instrprof_error IE);
@ -326,8 +360,15 @@ public:
return NumValueSiteCountMismatches;
}
/// Return an error code for the first encountered error.
std::error_code getError() const { return make_error_code(FirstError); }
/// Return the first encountered error and reset FirstError to a success
/// value.
Error takeError() {
if (FirstError == instrprof_error::success)
return Error::success();
auto E = make_error<InstrProfError>(FirstError);
FirstError = instrprof_error::success;
return E;
}
};
namespace object {
@ -372,14 +413,14 @@ public:
/// only initialize the symtab with reference to the data and
/// the section base address. The decompression will be delayed
/// until before it is used. See also \c create(StringRef) method.
std::error_code create(object::SectionRef &Section);
Error create(object::SectionRef &Section);
/// This interface is used by reader of CoverageMapping test
/// format.
inline std::error_code create(StringRef D, uint64_t BaseAddr);
inline Error create(StringRef D, uint64_t BaseAddr);
/// \c NameStrings is a string composed of one of more sub-strings
/// encoded in the format described in \c collectPGOFuncNameStrings.
/// This method is a wrapper to \c readPGOFuncNameStrings method.
inline std::error_code create(StringRef NameStrings);
inline Error create(StringRef NameStrings);
/// A wrapper interface to populate the PGO symtab with functions
/// decls from module \c M. This interface is used by transformation
/// passes such as indirect function call promotion. Variable \c InLTO
@ -424,13 +465,13 @@ public:
inline StringRef getNameData() const { return Data; }
};
std::error_code InstrProfSymtab::create(StringRef D, uint64_t BaseAddr) {
Error InstrProfSymtab::create(StringRef D, uint64_t BaseAddr) {
Data = D;
Address = BaseAddr;
return std::error_code();
return Error::success();
}
std::error_code InstrProfSymtab::create(StringRef NameStrings) {
Error InstrProfSymtab::create(StringRef NameStrings) {
return readPGOFuncNameStrings(NameStrings, *this);
}
@ -572,7 +613,7 @@ struct InstrProfRecord {
}
/// Get the error contained within the record's soft error counter.
std::error_code getError() const { return SIPE.getError(); }
Error takeError() { return SIPE.takeError(); }
private:
std::vector<InstrProfValueSiteRecord> IndirectCallSites;
@ -869,9 +910,4 @@ struct Header {
} // end namespace llvm
namespace std {
template <>
struct is_error_code_enum<llvm::instrprof_error> : std::true_type {};
}
#endif // LLVM_PROFILEDATA_INSTRPROF_H

7
include/llvm/ProfileData/InstrProfData.inc
View File

@ -322,16 +322,15 @@ typedef struct ValueProfData {
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.
* Check the integrity of the record.
*/
instrprof_error checkIntegrity();
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>>
static Expected<std::unique_ptr<ValueProfData>>
getValueProfData(const unsigned char *SrcBuffer,
const unsigned char *const SrcBufferEnd,
support::endianness SrcDataEndianness);

86
include/llvm/ProfileData/InstrProfReader.h
View File

@ -19,7 +19,6 @@
#include "llvm/ADT/StringExtras.h"
#include "llvm/ProfileData/InstrProf.h"
#include "llvm/Support/EndianStream.h"
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/LineIterator.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/OnDiskHashTable.h"
@ -51,16 +50,16 @@ public:
/// Base class and interface for reading profiling data of any known instrprof
/// format. Provides an iterator over InstrProfRecords.
class InstrProfReader {
std::error_code LastError;
instrprof_error LastError;
public:
InstrProfReader() : LastError(instrprof_error::success), Symtab() {}
virtual ~InstrProfReader() {}
/// Read the header. Required before reading first record.
virtual std::error_code readHeader() = 0;
virtual Error readHeader() = 0;
/// Read a single record.
virtual std::error_code readNextRecord(InstrProfRecord &Record) = 0;
virtual Error readNextRecord(InstrProfRecord &Record) = 0;
/// Iterator over profile data.
InstrProfIterator begin() { return InstrProfIterator(this); }
InstrProfIterator end() { return InstrProfIterator(); }
@ -80,28 +79,35 @@ public:
protected:
std::unique_ptr<InstrProfSymtab> Symtab;
/// Set the current std::error_code and return same.
std::error_code error(std::error_code EC) {
LastError = EC;
return EC;
/// Set the current error and return same.
Error error(instrprof_error Err) {
LastError = Err;
if (Err == instrprof_error::success)
return Error::success();
return make_error<InstrProfError>(Err);
}
Error error(Error E) { return error(InstrProfError::take(std::move(E))); }
/// Clear the current error code and return a successful one.
std::error_code success() { return error(instrprof_error::success); }
/// Clear the current error and return a successful one.
Error success() { return error(instrprof_error::success); }
public:
/// Return true if the reader has finished reading the profile data.
bool isEOF() { return LastError == instrprof_error::eof; }
/// Return true if the reader encountered an error reading profiling data.
bool hasError() { return LastError && !isEOF(); }
/// Get the current error code.
std::error_code getError() { return LastError; }
bool hasError() { return LastError != instrprof_error::success && !isEOF(); }
/// Get the current error.
Error getError() {
if (hasError())
return make_error<InstrProfError>(LastError);
return Error::success();
}
/// Factory method to create an appropriately typed reader for the given
/// instrprof file.
static ErrorOr<std::unique_ptr<InstrProfReader>> create(std::string Path);
static Expected<std::unique_ptr<InstrProfReader>> create(std::string Path);
static ErrorOr<std::unique_ptr<InstrProfReader>>
static Expected<std::unique_ptr<InstrProfReader>>
create(std::unique_ptr<MemoryBuffer> Buffer);
};
@ -123,7 +129,7 @@ private:
TextInstrProfReader(const TextInstrProfReader &) = delete;
TextInstrProfReader &operator=(const TextInstrProfReader &) = delete;
std::error_code readValueProfileData(InstrProfRecord &Record);
Error readValueProfileData(InstrProfRecord &Record);
public:
TextInstrProfReader(std::unique_ptr<MemoryBuffer> DataBuffer_)
@ -136,9 +142,9 @@ public:
bool isIRLevelProfile() const override { return IsIRLevelProfile; }
/// Read the header.
std::error_code readHeader() override;
Error readHeader() override;
/// Read a single record.
std::error_code readNextRecord(InstrProfRecord &Record) override;
Error readNextRecord(InstrProfRecord &Record) override;
InstrProfSymtab &getSymtab() override {
assert(Symtab.get());
@ -185,8 +191,8 @@ public:
: DataBuffer(std::move(DataBuffer)) { }
static bool hasFormat(const MemoryBuffer &DataBuffer);
std::error_code readHeader() override;
std::error_code readNextRecord(InstrProfRecord &Record) override;
Error readHeader() override;
Error readNextRecord(InstrProfRecord &Record) override;
bool isIRLevelProfile() const override {
return (Version & VARIANT_MASK_IR_PROF) != 0;
}
@ -197,9 +203,9 @@ public:
}
private:
std::error_code createSymtab(InstrProfSymtab &Symtab);
std::error_code readNextHeader(const char *CurrentPos);
std::error_code readHeader(const RawInstrProf::Header &Header);
Error createSymtab(InstrProfSymtab &Symtab);
Error readNextHeader(const char *CurrentPos);
Error readHeader(const RawInstrProf::Header &Header);
template <class IntT> IntT swap(IntT Int) const {
return ShouldSwapBytes ? sys::getSwappedBytes(Int) : Int;
}
@ -216,10 +222,10 @@ private:
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);
Error readName(InstrProfRecord &Record);
Error readFuncHash(InstrProfRecord &Record);
Error readRawCounts(InstrProfRecord &Record);
Error readValueProfilingData(InstrProfRecord &Record);
bool atEnd() const { return Data == DataEnd; }
void advanceData() {
Data++;
@ -300,9 +306,9 @@ public:
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;
virtual Error getRecords(ArrayRef<InstrProfRecord> &Data) = 0;
// Read all the profile records with the key equal to FuncName
virtual std::error_code getRecords(StringRef FuncName,
virtual Error getRecords(StringRef FuncName,
ArrayRef<InstrProfRecord> &Data) = 0;
virtual void advanceToNextKey() = 0;
virtual bool atEnd() const = 0;
@ -330,9 +336,9 @@ public:
const unsigned char *const Base,
IndexedInstrProf::HashT HashType, uint64_t Version);
std::error_code getRecords(ArrayRef<InstrProfRecord> &Data) override;
std::error_code getRecords(StringRef FuncName,
ArrayRef<InstrProfRecord> &Data) override;
Error getRecords(ArrayRef<InstrProfRecord> &Data) override;
Error getRecords(StringRef FuncName,
ArrayRef<InstrProfRecord> &Data) override;
void advanceToNextKey() override { RecordIterator++; }
bool atEnd() const override {
return RecordIterator == HashTable->data_end();
@ -379,27 +385,27 @@ public:
static bool hasFormat(const MemoryBuffer &DataBuffer);
/// Read the file header.
std::error_code readHeader() override;
Error readHeader() override;
/// Read a single record.
std::error_code readNextRecord(InstrProfRecord &Record) override;
Error readNextRecord(InstrProfRecord &Record) override;
/// Return the pointer to InstrProfRecord associated with FuncName
/// and FuncHash
ErrorOr<InstrProfRecord> getInstrProfRecord(StringRef FuncName,
uint64_t FuncHash);
Expected<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);
Error getFunctionCounts(StringRef FuncName, uint64_t FuncHash,
std::vector<uint64_t> &Counts);
/// Return the maximum of all known function counts.
uint64_t getMaximumFunctionCount() { return Summary->getMaxFunctionCount(); }
/// Factory method to create an indexed reader.
static ErrorOr<std::unique_ptr<IndexedInstrProfReader>>
static Expected<std::unique_ptr<IndexedInstrProfReader>>
create(std::string Path);
static ErrorOr<std::unique_ptr<IndexedInstrProfReader>>
static Expected<std::unique_ptr<IndexedInstrProfReader>>
create(std::unique_ptr<MemoryBuffer> Buffer);
// Used for testing purpose only.

12
include/llvm/ProfileData/InstrProfWriter.h
View File

@ -46,7 +46,7 @@ public:
/// Add function counts for the given function. If there are already counts
/// for this function and the hash and number of counts match, each counter is
/// summed. Optionally scale counts by \p Weight.
std::error_code addRecord(InstrProfRecord &&I, uint64_t Weight = 1);
Error addRecord(InstrProfRecord &&I, uint64_t Weight = 1);
/// Write the profile to \c OS
void write(raw_fd_ostream &OS);
/// Write the profile in text format to \c OS
@ -58,13 +58,15 @@ public:
std::unique_ptr<MemoryBuffer> writeBuffer();
/// Set the ProfileKind. Report error if mixing FE and IR level profiles.
std::error_code setIsIRLevelProfile(bool IsIRLevel) {
Error setIsIRLevelProfile(bool IsIRLevel) {
if (ProfileKind == PF_Unknown) {
ProfileKind = IsIRLevel ? PF_IRLevel: PF_FE;
return instrprof_error::success;
return Error::success();
}
return (IsIRLevel == (ProfileKind == PF_IRLevel)) ?
instrprof_error::success : instrprof_error::unsupported_version;
return (IsIRLevel == (ProfileKind == PF_IRLevel))
? Error::success()
: make_error<InstrProfError>(
instrprof_error::unsupported_version);
}
// Internal interface for testing purpose only.

1
include/llvm/ProfileData/ProfileCommon.h
View File

@ -21,6 +21,7 @@
#include <vector>
#include "llvm/Support/Casting.h"
#include "llvm/Support/Error.h"
namespace llvm {
class Function;

86
lib/ProfileData/Coverage/CoverageMapping.cpp
View File

@ -143,28 +143,30 @@ void CounterMappingContext::dump(const Counter &C,
}
if (CounterValues.empty())
return;
ErrorOr<int64_t> Value = evaluate(C);
if (!Value)
Expected<int64_t> Value = evaluate(C);
if (auto E = Value.takeError()) {
llvm::consumeError(std::move(E));
return;
}
OS << '[' << *Value << ']';
}
ErrorOr<int64_t> CounterMappingContext::evaluate(const Counter &C) const {
Expected<int64_t> CounterMappingContext::evaluate(const Counter &C) const {
switch (C.getKind()) {
case Counter::Zero:
return 0;
case Counter::CounterValueReference:
if (C.getCounterID() >= CounterValues.size())
return make_error_code(errc::argument_out_of_domain);
return errorCodeToError(errc::argument_out_of_domain);
return CounterValues[C.getCounterID()];
case Counter::Expression: {
if (C.getExpressionID() >= Expressions.size())
return make_error_code(errc::argument_out_of_domain);
return errorCodeToError(errc::argument_out_of_domain);
const auto &E = Expressions[C.getExpressionID()];
ErrorOr<int64_t> LHS = evaluate(E.LHS);
Expected<int64_t> LHS = evaluate(E.LHS);
if (!LHS)
return LHS;
ErrorOr<int64_t> RHS = evaluate(E.RHS);
Expected<int64_t> RHS = evaluate(E.RHS);
if (!RHS)
return RHS;
return E.Kind == CounterExpression::Subtract ? *LHS - *RHS : *LHS + *RHS;
@ -181,7 +183,7 @@ void FunctionRecordIterator::skipOtherFiles() {
*this = FunctionRecordIterator();
}
ErrorOr<std::unique_ptr<CoverageMapping>>
Expected<std::unique_ptr<CoverageMapping>>
CoverageMapping::load(CoverageMappingReader &CoverageReader,
IndexedInstrProfReader &ProfileReader) {
auto Coverage = std::unique_ptr<CoverageMapping>(new CoverageMapping());
@ -191,13 +193,14 @@ CoverageMapping::load(CoverageMappingReader &CoverageReader,
CounterMappingContext Ctx(Record.Expressions);
Counts.clear();
if (std::error_code EC = ProfileReader.getFunctionCounts(
if (Error E = ProfileReader.getFunctionCounts(
Record.FunctionName, Record.FunctionHash, Counts)) {
if (EC == instrprof_error::hash_mismatch) {
instrprof_error IPE = InstrProfError::take(std::move(E));
if (IPE == instrprof_error::hash_mismatch) {
Coverage->MismatchedFunctionCount++;
continue;
} else if (EC != instrprof_error::unknown_function)
return EC;
} else if (IPE != instrprof_error::unknown_function)
return make_error<InstrProfError>(IPE);
Counts.assign(Record.MappingRegions.size(), 0);
}
Ctx.setCounts(Counts);
@ -212,9 +215,11 @@ CoverageMapping::load(CoverageMappingReader &CoverageReader,
getFuncNameWithoutPrefix(OrigFuncName, Record.Filenames[0]);
FunctionRecord Function(OrigFuncName, Record.Filenames);
for (const auto &Region : Record.MappingRegions) {
ErrorOr<int64_t> ExecutionCount = Ctx.evaluate(Region.Count);
if (!ExecutionCount)
Expected<int64_t> ExecutionCount = Ctx.evaluate(Region.Count);
if (auto E = ExecutionCount.takeError()) {
llvm::consumeError(std::move(E));
break;
}
Function.pushRegion(Region, *ExecutionCount);
}
if (Function.CountedRegions.size() != Record.MappingRegions.size()) {
@ -228,20 +233,20 @@ CoverageMapping::load(CoverageMappingReader &CoverageReader,
return std::move(Coverage);
}
ErrorOr<std::unique_ptr<CoverageMapping>>
Expected<std::unique_ptr<CoverageMapping>>
CoverageMapping::load(StringRef ObjectFilename, StringRef ProfileFilename,
StringRef Arch) {
auto CounterMappingBuff = MemoryBuffer::getFileOrSTDIN(ObjectFilename);
if (std::error_code EC = CounterMappingBuff.getError())
return EC;
return errorCodeToError(EC);
auto CoverageReaderOrErr =
BinaryCoverageReader::create(CounterMappingBuff.get(), Arch);
if (std::error_code EC = CoverageReaderOrErr.getError())
return EC;
if (Error E = CoverageReaderOrErr.takeError())
return std::move(E);
auto CoverageReader = std::move(CoverageReaderOrErr.get());
auto ProfileReaderOrErr = IndexedInstrProfReader::create(ProfileFilename);
if (auto EC = ProfileReaderOrErr.getError())
return EC;
if (Error E = ProfileReaderOrErr.takeError())
return std::move(E);
auto ProfileReader = std::move(ProfileReaderOrErr.get());
return load(*CoverageReader, *ProfileReader);
}
@ -533,27 +538,34 @@ CoverageMapping::getCoverageForExpansion(const ExpansionRecord &Expansion) {
}
namespace {
std::string getCoverageMapErrString(coveragemap_error Err) {
switch (Err) {
case coveragemap_error::success:
return "Success";
case coveragemap_error::eof:
return "End of File";
case coveragemap_error::no_data_found:
return "No coverage data found";
case coveragemap_error::unsupported_version:
return "Unsupported coverage format version";
case coveragemap_error::truncated:
return "Truncated coverage data";
case coveragemap_error::malformed:
return "Malformed coverage data";
}
llvm_unreachable("A value of coveragemap_error has no message.");
}
class CoverageMappingErrorCategoryType : public std::error_category {
const char *name() const LLVM_NOEXCEPT override { return "llvm.coveragemap"; }
std::string message(int IE) const override {
auto E = static_cast<coveragemap_error>(IE);
switch (E) {
case coveragemap_error::success:
return "Success";
case coveragemap_error::eof:
return "End of File";
case coveragemap_error::no_data_found:
return "No coverage data found";
case coveragemap_error::unsupported_version:
return "Unsupported coverage format version";
case coveragemap_error::truncated:
return "Truncated coverage data";
case coveragemap_error::malformed:
return "Malformed coverage data";
}
llvm_unreachable("A value of coveragemap_error has no message.");
return getCoverageMapErrString(static_cast<coveragemap_error>(IE));
}
};
} // end anonymous namespace
std::string CoverageMapError::message() const {
return getCoverageMapErrString(Err);
}
static ManagedStatic<CoverageMappingErrorCategoryType> ErrorCategory;
@ -561,3 +573,5 @@ static ManagedStatic<CoverageMappingErrorCategoryType> ErrorCategory;
const std::error_category &llvm::coverage::coveragemap_category() {
return *ErrorCategory;
}
char CoverageMapError::ID = 0;

234
lib/ProfileData/Coverage/CoverageMappingReader.cpp
View File

@ -31,49 +31,54 @@ using namespace object;
void CoverageMappingIterator::increment() {
// Check if all the records were read or if an error occurred while reading
// the next record.
if (Reader->readNextRecord(Record))
*this = CoverageMappingIterator();
if (auto E = Reader->readNextRecord(Record)) {
handleAllErrors(std::move(E), [&](const CoverageMapError &CME) {
if (CME.get() == coveragemap_error::eof)
*this = CoverageMappingIterator();
else
llvm_unreachable("Unexpected error in coverage mapping iterator");
});
}
}
std::error_code RawCoverageReader::readULEB128(uint64_t &Result) {
Error RawCoverageReader::readULEB128(uint64_t &Result) {
if (Data.size() < 1)
return coveragemap_error::truncated;
return make_error<CoverageMapError>(coveragemap_error::truncated);
unsigned N = 0;
Result = decodeULEB128(reinterpret_cast<const uint8_t *>(Data.data()), &N);
if (N > Data.size())
return coveragemap_error::malformed;
return make_error<CoverageMapError>(coveragemap_error::malformed);
Data = Data.substr(N);
return std::error_code();
return Error::success();
}
std::error_code RawCoverageReader::readIntMax(uint64_t &Result,
uint64_t MaxPlus1) {
Error RawCoverageReader::readIntMax(uint64_t &Result, uint64_t MaxPlus1) {
if (auto Err = readULEB128(Result))
return Err;
if (Result >= MaxPlus1)
return coveragemap_error::malformed;
return std::error_code();
return make_error<CoverageMapError>(coveragemap_error::malformed);
return Error::success();
}
std::error_code RawCoverageReader::readSize(uint64_t &Result) {
Error RawCoverageReader::readSize(uint64_t &Result) {
if (auto Err = readULEB128(Result))
return Err;
// Sanity check the number.
if (Result > Data.size())
return coveragemap_error::malformed;
return std::error_code();
return make_error<CoverageMapError>(coveragemap_error::malformed);
return Error::success();
}
std::error_code RawCoverageReader::readString(StringRef &Result) {
Error RawCoverageReader::readString(StringRef &Result) {
uint64_t Length;
if (auto Err = readSize(Length))
return Err;
Result = Data.substr(0, Length);
Data = Data.substr(Length);
return std::error_code();
return Error::success();
}
std::error_code RawCoverageFilenamesReader::read() {
Error RawCoverageFilenamesReader::read() {
uint64_t NumFilenames;
if (auto Err = readSize(NumFilenames))
return Err;
@ -83,19 +88,18 @@ std::error_code RawCoverageFilenamesReader::read() {
return Err;
Filenames.push_back(Filename);
}
return std::error_code();
return Error::success();
}
std::error_code RawCoverageMappingReader::decodeCounter(unsigned Value,
Counter &C) {
Error RawCoverageMappingReader::decodeCounter(unsigned Value, Counter &C) {
auto Tag = Value & Counter::EncodingTagMask;
switch (Tag) {
case Counter::Zero:
C = Counter::getZero();
return std::error_code();
return Error::success();
case Counter::CounterValueReference:
C = Counter::getCounter(Value >> Counter::EncodingTagBits);
return std::error_code();
return Error::success();
default:
break;
}
@ -105,25 +109,25 @@ std::error_code RawCoverageMappingReader::decodeCounter(unsigned Value,
case CounterExpression::Add: {
auto ID = Value >> Counter::EncodingTagBits;
if (ID >= Expressions.size())
return coveragemap_error::malformed;
return make_error<CoverageMapError>(coveragemap_error::malformed);
Expressions[ID].Kind = CounterExpression::ExprKind(Tag);
C = Counter::getExpression(ID);
break;
}
default:
return coveragemap_error::malformed;
return make_error<CoverageMapError>(coveragemap_error::malformed);
}
return std::error_code();
return Error::success();
}
std::error_code RawCoverageMappingReader::readCounter(Counter &C) {
Error RawCoverageMappingReader::readCounter(Counter &C) {
uint64_t EncodedCounter;
if (auto Err =
readIntMax(EncodedCounter, std::numeric_limits<unsigned>::max()))
return Err;
if (auto Err = decodeCounter(EncodedCounter, C))
return Err;
return std::error_code();
return Error::success();
}
static const unsigned EncodingExpansionRegionBit = 1
@ -132,7 +136,7 @@ static const unsigned EncodingExpansionRegionBit = 1
/// \brief Read the sub-array of regions for the given inferred file id.
/// \param NumFileIDs the number of file ids that are defined for this
/// function.
std::error_code RawCoverageMappingReader::readMappingRegionsSubArray(
Error RawCoverageMappingReader::readMappingRegionsSubArray(
std::vector<CounterMappingRegion> &MappingRegions, unsigned InferredFileID,
size_t NumFileIDs) {
uint64_t NumRegions;
@ -160,7 +164,7 @@ std::error_code RawCoverageMappingReader::readMappingRegionsSubArray(
ExpandedFileID = EncodedCounterAndRegion >>
Counter::EncodingCounterTagAndExpansionRegionTagBits;
if (ExpandedFileID >= NumFileIDs)
return coveragemap_error::malformed;
return make_error<CoverageMapError>(coveragemap_error::malformed);
} else {
switch (EncodedCounterAndRegion >>
Counter::EncodingCounterTagAndExpansionRegionTagBits) {
@ -171,7 +175,7 @@ std::error_code RawCoverageMappingReader::readMappingRegionsSubArray(
Kind = CounterMappingRegion::SkippedRegion;
break;
default:
return coveragemap_error::malformed;
return make_error<CoverageMapError>(coveragemap_error::malformed);
}
}
}
@ -184,7 +188,7 @@ std::error_code RawCoverageMappingReader::readMappingRegionsSubArray(
if (auto Err = readULEB128(ColumnStart))
return Err;
if (ColumnStart > std::numeric_limits<unsigned>::max())
return coveragemap_error::malformed;
return make_error<CoverageMapError>(coveragemap_error::malformed);
if (auto Err = readIntMax(NumLines, std::numeric_limits<unsigned>::max()))
return Err;
if (auto Err = readIntMax(ColumnEnd, std::numeric_limits<unsigned>::max()))
@ -218,10 +222,10 @@ std::error_code RawCoverageMappingReader::readMappingRegionsSubArray(
C, InferredFileID, ExpandedFileID, LineStart, ColumnStart,
LineStart + NumLines, ColumnEnd, Kind));
}
return std::error_code();
return Error::success();
}
std::error_code RawCoverageMappingReader::read() {
Error RawCoverageMappingReader::read() {
// Read the virtual file mapping.
llvm::SmallVector<unsigned, 8> VirtualFileMapping;
@ -287,14 +291,14 @@ std::error_code RawCoverageMappingReader::read() {
}
}
return std::error_code();
return Error::success();
}
std::error_code InstrProfSymtab::create(SectionRef &Section) {
if (auto Err = Section.getContents(Data))
return Err;
Error InstrProfSymtab::create(SectionRef &Section) {
if (auto EC = Section.getContents(Data))
return errorCodeToError(EC);
Address = Section.getAddress();
return std::error_code();
return Error::success();
}
StringRef InstrProfSymtab::getFuncName(uint64_t Pointer, size_t Size) {
@ -312,11 +316,10 @@ struct CovMapFuncRecordReader {
// a module. \p Buf is a reference to the buffer pointer pointing
// to the \c CovHeader of coverage mapping data associated with
// the module.
virtual std::error_code readFunctionRecords(const char *&Buf,
const char *End) = 0;
virtual Error readFunctionRecords(const char *&Buf, const char *End) = 0;
virtual ~CovMapFuncRecordReader() {}
template <class IntPtrT, support::endianness Endian>
static ErrorOr<std::unique_ptr<CovMapFuncRecordReader>>
static Expected<std::unique_ptr<CovMapFuncRecordReader>>
get(coverage::CovMapVersion Version, InstrProfSymtab &P,
std::vector<BinaryCoverageReader::ProfileMappingRecord> &R,
std::vector<StringRef> &F);
@ -344,11 +347,10 @@ public:
: ProfileNames(P), Filenames(F), Records(R) {}
~VersionedCovMapFuncRecordReader() override {}
std::error_code readFunctionRecords(const char *&Buf,
const char *End) override {
Error readFunctionRecords(const char *&Buf, const char *End) override {
using namespace support;
if (Buf + sizeof(CovMapHeader) > End)
return coveragemap_error::malformed;
return make_error<CoverageMapError>(coveragemap_error::malformed);
auto CovHeader = reinterpret_cast<const coverage::CovMapHeader *>(Buf);
uint32_t NRecords = CovHeader->getNRecords<Endian>();
uint32_t FilenamesSize = CovHeader->getFilenamesSize<Endian>();
@ -363,7 +365,7 @@ public:
// Get the filenames.
if (Buf + FilenamesSize > End)
return coveragemap_error::malformed;
return make_error<CoverageMapError>(coveragemap_error::malformed);
size_t FilenamesBegin = Filenames.size();
RawCoverageFilenamesReader Reader(StringRef(Buf, FilenamesSize), Filenames);
if (auto Err = Reader.read())
@ -376,7 +378,7 @@ public:
const char *CovEnd = Buf;
if (Buf > End)
return coveragemap_error::malformed;
return make_error<CoverageMapError>(coveragemap_error::malformed);
// Each coverage map has an alignment of 8, so we need to adjust alignment
// before reading the next map.
Buf += alignmentAdjustment(Buf, 8);
@ -389,7 +391,7 @@ public:
// Now use that to read the coverage data.
if (CovBuf + DataSize > CovEnd)
return coveragemap_error::malformed;
return make_error<CoverageMapError>(coveragemap_error::malformed);
auto Mapping = StringRef(CovBuf, DataSize);
CovBuf += DataSize;
@ -403,21 +405,20 @@ public:
}
StringRef FuncName;
if (std::error_code EC =
CFR->template getFuncName<Endian>(ProfileNames, FuncName))
return EC;
if (Error E = CFR->template getFuncName<Endian>(ProfileNames, FuncName))
return E;
Records.push_back(BinaryCoverageReader::ProfileMappingRecord(
Version, FuncName, FuncHash, Mapping, FilenamesBegin,
Filenames.size() - FilenamesBegin));
CFR++;
}
return std::error_code();
return Error::success();
}
};
} // end anonymous namespace
template <class IntPtrT, support::endianness Endian>
ErrorOr<std::unique_ptr<CovMapFuncRecordReader>> CovMapFuncRecordReader::get(
Expected<std::unique_ptr<CovMapFuncRecordReader>> CovMapFuncRecordReader::get(
coverage::CovMapVersion Version, InstrProfSymtab &P,
std::vector<BinaryCoverageReader::ProfileMappingRecord> &R,
std::vector<StringRef> &F) {
@ -428,8 +429,8 @@ ErrorOr<std::unique_ptr<CovMapFuncRecordReader>> CovMapFuncRecordReader::get(
CovMapVersion::Version1, IntPtrT, Endian>>(P, R, F);
case CovMapVersion::Version2:
// Decompress the name data.
if (auto EC = P.create(P.getNameData()))
return EC;
if (Error E = P.create(P.getNameData()))
return std::move(E);
return llvm::make_unique<VersionedCovMapFuncRecordReader<
CovMapVersion::Version2, IntPtrT, Endian>>(P, R, F);
}
@ -437,7 +438,7 @@ ErrorOr<std::unique_ptr<CovMapFuncRecordReader>> CovMapFuncRecordReader::get(
}
template <typename T, support::endianness Endian>
static std::error_code readCoverageMappingData(
static Error readCoverageMappingData(
InstrProfSymtab &ProfileNames, StringRef Data,
std::vector<BinaryCoverageReader::ProfileMappingRecord> &Records,
std::vector<StringRef> &Filenames) {
@ -447,96 +448,97 @@ static std::error_code readCoverageMappingData(
reinterpret_cast<const coverage::CovMapHeader *>(Data.data());
CovMapVersion Version = (CovMapVersion)CovHeader->getVersion<Endian>();
if (Version > coverage::CovMapVersion::CurrentVersion)
return coveragemap_error::unsupported_version;
ErrorOr<std::unique_ptr<CovMapFuncRecordReader>> ReaderErrorOr =
return make_error<CoverageMapError>(coveragemap_error::unsupported_version);
Expected<std::unique_ptr<CovMapFuncRecordReader>> ReaderExpected =
CovMapFuncRecordReader::get<T, Endian>(Version, ProfileNames, Records,
Filenames);
if (auto EC = ReaderErrorOr.getError())
return EC;
auto Reader = std::move(ReaderErrorOr.get());
if (Error E = ReaderExpected.takeError())
return E;
auto Reader = std::move(ReaderExpected.get());
for (const char *Buf = Data.data(), *End = Buf + Data.size(); Buf < End;) {
if (std::error_code EC = Reader->readFunctionRecords(Buf, End))
return EC;
if (Error E = Reader->readFunctionRecords(Buf, End))
return E;
}
return std::error_code();
return Error::success();
}
static const char *TestingFormatMagic = "llvmcovmtestdata";
static std::error_code loadTestingFormat(StringRef Data,
InstrProfSymtab &ProfileNames,
StringRef &CoverageMapping,
uint8_t &BytesInAddress,
support::endianness &Endian) {
static Error loadTestingFormat(StringRef Data, InstrProfSymtab &ProfileNames,
StringRef &CoverageMapping,
uint8_t &BytesInAddress,
support::endianness &Endian) {
BytesInAddress = 8;
Endian = support::endianness::little;
Data = Data.substr(StringRef(TestingFormatMagic).size());
if (Data.size() < 1)
return coveragemap_error::truncated;
return make_error<CoverageMapError>(coveragemap_error::truncated);
unsigned N = 0;
auto ProfileNamesSize =
decodeULEB128(reinterpret_cast<const uint8_t *>(Data.data()), &N);
if (N > Data.size())
return coveragemap_error::malformed;
return make_error<CoverageMapError>(coveragemap_error::malformed);
Data = Data.substr(N);
if (Data.size() < 1)
return coveragemap_error::truncated;
return make_error<CoverageMapError>(coveragemap_error::truncated);
N = 0;
uint64_t Address =
decodeULEB128(reinterpret_cast<const uint8_t *>(Data.data()), &N);
if (N > Data.size())
return coveragemap_error::malformed;
return make_error<CoverageMapError>(coveragemap_error::malformed);
Data = Data.substr(N);
if (Data.size() < ProfileNamesSize)
return coveragemap_error::malformed;
ProfileNames.create(Data.substr(0, ProfileNamesSize), Address);
return make_error<CoverageMapError>(coveragemap_error::malformed);
if (Error E = ProfileNames.create(Data.substr(0, ProfileNamesSize), Address))
return E;
CoverageMapping = Data.substr(ProfileNamesSize);
// Skip the padding bytes because coverage map data has an alignment of 8.
if (CoverageMapping.size() < 1)
return coveragemap_error::truncated;
return make_error<CoverageMapError>(coveragemap_error::truncated);
size_t Pad = alignmentAdjustment(CoverageMapping.data(), 8);
if (CoverageMapping.size() < Pad)
return coveragemap_error::malformed;
return make_error<CoverageMapError>(coveragemap_error::malformed);
CoverageMapping = CoverageMapping.substr(Pad);
return std::error_code();
return Error::success();
}
static ErrorOr<SectionRef> lookupSection(ObjectFile &OF, StringRef Name) {
static Expected<SectionRef> lookupSection(ObjectFile &OF, StringRef Name) {
StringRef FoundName;
for (const auto &Section : OF.sections()) {
if (auto EC = Section.getName(FoundName))
return EC;
return errorCodeToError(EC);
if (FoundName == Name)
return Section;
}
return coveragemap_error::no_data_found;
return make_error<CoverageMapError>(coveragemap_error::no_data_found);
}
static std::error_code
loadBinaryFormat(MemoryBufferRef ObjectBuffer, InstrProfSymtab &ProfileNames,
StringRef &CoverageMapping, uint8_t &BytesInAddress,
support::endianness &Endian, StringRef Arch) {
static Error loadBinaryFormat(MemoryBufferRef ObjectBuffer,
InstrProfSymtab &ProfileNames,
StringRef &CoverageMapping,
uint8_t &BytesInAddress,
support::endianness &Endian, StringRef Arch) {
auto BinOrErr = object::createBinary(ObjectBuffer);
if (!BinOrErr)
return errorToErrorCode(BinOrErr.takeError());
return BinOrErr.takeError();
auto Bin = std::move(BinOrErr.get());
std::unique_ptr<ObjectFile> OF;
if (auto *Universal = dyn_cast<object::MachOUniversalBinary>(Bin.get())) {
// If we have a universal binary, try to look up the object for the
// appropriate architecture.
auto ObjectFileOrErr = Universal->getObjectForArch(Arch);
if (std::error_code EC = ObjectFileOrErr.getError())
return EC;
if (auto EC = ObjectFileOrErr.getError())
return errorCodeToError(EC);
OF = std::move(ObjectFileOrErr.get());
} else if (isa<object::ObjectFile>(Bin.get())) {
// For any other object file, upcast and take ownership.
OF.reset(cast<object::ObjectFile>(Bin.release()));
// If we've asked for a particular arch, make sure they match.
if (!Arch.empty() && OF->getArch() != Triple(Arch).getArch())
return object_error::arch_not_found;
return errorCodeToError(object_error::arch_not_found);
} else
// We can only handle object files.
return coveragemap_error::malformed;
return make_error<CoverageMapError>(coveragemap_error::malformed);
// The coverage uses native pointer sizes for the object it's written in.
BytesInAddress = OF->getBytesInAddress();
@ -545,23 +547,23 @@ loadBinaryFormat(MemoryBufferRef ObjectBuffer, InstrProfSymtab &ProfileNames,
// Look for the sections that we are interested in.
auto NamesSection = lookupSection(*OF, getInstrProfNameSectionName(false));
if (auto EC = NamesSection.getError())
return EC;
if (auto E = NamesSection.takeError())
return E;
auto CoverageSection =
lookupSection(*OF, getInstrProfCoverageSectionName(false));
if (auto EC = CoverageSection.getError())
return EC;
if (auto E = CoverageSection.takeError())
return E;
// Get the contents of the given sections.
if (std::error_code EC = CoverageSection->getContents(CoverageMapping))
return EC;
if (std::error_code EC = ProfileNames.create(*NamesSection))
return EC;
if (auto EC = CoverageSection->getContents(CoverageMapping))
return errorCodeToError(EC);
if (Error E = ProfileNames.create(*NamesSection))
return E;
return std::error_code();
return Error::success();
}
ErrorOr<std::unique_ptr<BinaryCoverageReader>>
Expected<std::unique_ptr<BinaryCoverageReader>>
BinaryCoverageReader::create(std::unique_ptr<MemoryBuffer> &ObjectBuffer,
StringRef Arch) {
std::unique_ptr<BinaryCoverageReader> Reader(new BinaryCoverageReader());
@ -569,44 +571,44 @@ BinaryCoverageReader::create(std::unique_ptr<MemoryBuffer> &ObjectBuffer,
StringRef Coverage;
uint8_t BytesInAddress;
support::endianness Endian;
std::error_code EC;
Error E;
consumeError(std::move(E));
if (ObjectBuffer->getBuffer().startswith(TestingFormatMagic))
// This is a special format used for testing.
EC = loadTestingFormat(ObjectBuffer->getBuffer(), Reader->ProfileNames,
Coverage, BytesInAddress, Endian);
E = loadTestingFormat(ObjectBuffer->getBuffer(), Reader->ProfileNames,
Coverage, BytesInAddress, Endian);
else
EC = loadBinaryFormat(ObjectBuffer->getMemBufferRef(), Reader->ProfileNames,
Coverage, BytesInAddress, Endian, Arch);
if (EC)
return EC;
E = loadBinaryFormat(ObjectBuffer->getMemBufferRef(), Reader->ProfileNames,
Coverage, BytesInAddress, Endian, Arch);
if (E)
return std::move(E);
if (BytesInAddress == 4 && Endian == support::endianness::little)
EC = readCoverageMappingData<uint32_t, support::endianness::little>(
E = readCoverageMappingData<uint32_t, support::endianness::little>(
Reader->ProfileNames, Coverage, Reader->MappingRecords,
Reader->Filenames);
else if (BytesInAddress == 4 && Endian == support::endianness::big)
EC = readCoverageMappingData<uint32_t, support::endianness::big>(
E = readCoverageMappingData<uint32_t, support::endianness::big>(
Reader->ProfileNames, Coverage, Reader->MappingRecords,
Reader->Filenames);
else if (BytesInAddress == 8 && Endian == support::endianness::little)
EC = readCoverageMappingData<uint64_t, support::endianness::little>(
E = readCoverageMappingData<uint64_t, support::endianness::little>(
Reader->ProfileNames, Coverage, Reader->MappingRecords,
Reader->Filenames);
else if (BytesInAddress == 8 && Endian == support::endianness::big)
EC = readCoverageMappingData<uint64_t, support::endianness::big>(
E = readCoverageMappingData<uint64_t, support::endianness::big>(
Reader->ProfileNames, Coverage, Reader->MappingRecords,
Reader->Filenames);
else
return coveragemap_error::malformed;
if (EC)
return EC;
return make_error<CoverageMapError>(coveragemap_error::malformed);
if (E)
return std::move(E);
return std::move(Reader);
}
std::error_code
BinaryCoverageReader::readNextRecord(CoverageMappingRecord &Record) {
Error BinaryCoverageReader::readNextRecord(CoverageMappingRecord &Record) {
if (CurrentRecord >= MappingRecords.size())
return coveragemap_error::eof;
return make_error<CoverageMapError>(coveragemap_error::eof);
FunctionsFilenames.clear();
Expressions.clear();
@ -626,5 +628,5 @@ BinaryCoverageReader::readNextRecord(CoverageMappingRecord &Record) {
Record.MappingRegions = MappingRegions;
++CurrentRecord;
return std::error_code();
return Error::success();
}

133
lib/ProfileData/InstrProf.cpp
View File

@ -27,47 +27,50 @@
using namespace llvm;
namespace {
std::string getInstrProfErrString(instrprof_error Err) {
switch (Err) {
case instrprof_error::success:
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 instrumentation profile data (bad magic)";
case instrprof_error::bad_header:
return "Invalid instrumentation profile data (file header is corrupt)";
case instrprof_error::unsupported_version:
return "Unsupported instrumentation profile format version";
case instrprof_error::unsupported_hash_type:
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 instrumentation profile data";
case instrprof_error::unknown_function:
return "No profile data available for function";
case instrprof_error::hash_mismatch:
return "Function control flow change detected (hash mismatch)";
case instrprof_error::count_mismatch:
return "Function basic block count change detected (counter mismatch)";
case instrprof_error::counter_overflow:
return "Counter overflow";
case instrprof_error::value_site_count_mismatch:
return "Function value site count change detected (counter mismatch)";
case instrprof_error::compress_failed:
return "Failed to compress data (zlib)";
case instrprof_error::uncompress_failed:
return "Failed to uncompress data (zlib)";
}
llvm_unreachable("A value of instrprof_error has no message.");
}
class InstrProfErrorCategoryType : public std::error_category {
const char *name() const LLVM_NOEXCEPT override { return "llvm.instrprof"; }
std::string message(int IE) const override {
instrprof_error E = static_cast<instrprof_error>(IE);
switch (E) {
case instrprof_error::success:
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 instrumentation profile data (bad magic)";
case instrprof_error::bad_header:
return "Invalid instrumentation profile data (file header is corrupt)";
case instrprof_error::unsupported_version:
return "Unsupported instrumentation profile format version";
case instrprof_error::unsupported_hash_type:
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 instrumentation profile data";
case instrprof_error::unknown_function:
return "No profile data available for function";
case instrprof_error::hash_mismatch:
return "Function control flow change detected (hash mismatch)";
case instrprof_error::count_mismatch:
return "Function basic block count change detected (counter mismatch)";
case instrprof_error::counter_overflow:
return "Counter overflow";
case instrprof_error::value_site_count_mismatch:
return "Function value site count change detected (counter mismatch)";
case instrprof_error::compress_failed:
return "Failed to compress data (zlib)";
case instrprof_error::uncompress_failed:
return "Failed to uncompress data (zlib)";
}
llvm_unreachable("A value of instrprof_error has no message.");
return getInstrProfErrString(static_cast<instrprof_error>(IE));
}
};
} // end anonymous namespace
@ -105,6 +108,12 @@ void SoftInstrProfErrors::addError(instrprof_error IE) {
}
}
std::string InstrProfError::message() const {
return getInstrProfErrString(Err);
}
char InstrProfError::ID = 0;
std::string getPGOFuncName(StringRef RawFuncName,
GlobalValue::LinkageTypes Linkage,
StringRef FileName,
@ -214,9 +223,8 @@ void InstrProfSymtab::create(Module &M, bool InLTO) {
finalizeSymtab();
}
std::error_code
collectPGOFuncNameStrings(const std::vector<std::string> &NameStrs,
bool doCompression, std::string &Result) {
Error collectPGOFuncNameStrings(const std::vector<std::string> &NameStrs,
bool doCompression, std::string &Result) {
assert(NameStrs.size() && "No name data to emit");
uint8_t Header[16], *P = Header;
@ -238,11 +246,12 @@ collectPGOFuncNameStrings(const std::vector<std::string> &NameStrs,
unsigned HeaderLen = P - &Header[0];
Result.append(HeaderStr, HeaderLen);
Result += InputStr;
return make_error_code(instrprof_error::success);
return Error::success();
};
if (!doCompression)
if (!doCompression) {
return WriteStringToResult(0, UncompressedNameStrings);
}
SmallVector<char, 128> CompressedNameStrings;
zlib::Status Success =
@ -250,7 +259,7 @@ collectPGOFuncNameStrings(const std::vector<std::string> &NameStrs,
zlib::BestSizeCompression);
if (Success != zlib::StatusOK)
return make_error_code(instrprof_error::compress_failed);
return make_error<InstrProfError>(instrprof_error::compress_failed);
return WriteStringToResult(
CompressedNameStrings.size(),
@ -264,9 +273,8 @@ StringRef getPGOFuncNameVarInitializer(GlobalVariable *NameVar) {
return NameStr;
}
std::error_code
collectPGOFuncNameStrings(const std::vector<GlobalVariable *> &NameVars,
std::string &Result, bool doCompression) {
Error collectPGOFuncNameStrings(const std::vector<GlobalVariable *> &NameVars,
std::string &Result, bool doCompression) {
std::vector<std::string> NameStrs;
for (auto *NameVar : NameVars) {
NameStrs.push_back(getPGOFuncNameVarInitializer(NameVar));
@ -275,8 +283,7 @@ collectPGOFuncNameStrings(const std::vector<GlobalVariable *> &NameVars,
NameStrs, zlib::isAvailable() && doCompression, Result);
}
std::error_code readPGOFuncNameStrings(StringRef NameStrings,
InstrProfSymtab &Symtab) {
Error readPGOFuncNameStrings(StringRef NameStrings, InstrProfSymtab &Symtab) {
const uint8_t *P = reinterpret_cast<const uint8_t *>(NameStrings.data());
const uint8_t *EndP = reinterpret_cast<const uint8_t *>(NameStrings.data() +
NameStrings.size());
@ -294,7 +301,7 @@ std::error_code readPGOFuncNameStrings(StringRef NameStrings,
CompressedSize);
if (zlib::uncompress(CompressedNameStrings, UncompressedNameStrings,
UncompressedSize) != zlib::StatusOK)
return make_error_code(instrprof_error::uncompress_failed);
return make_error<InstrProfError>(instrprof_error::uncompress_failed);
P += CompressedSize;
NameStrings = StringRef(UncompressedNameStrings.data(),
UncompressedNameStrings.size());
@ -313,7 +320,7 @@ std::error_code readPGOFuncNameStrings(StringRef NameStrings,
P++;
}
Symtab.finalizeSymtab();
return make_error_code(instrprof_error::success);
return Error::success();
}
void InstrProfValueSiteRecord::merge(SoftInstrProfErrors &SIPE,
@ -577,45 +584,45 @@ static std::unique_ptr<ValueProfData> allocValueProfData(uint32_t TotalSize) {
ValueProfData());
}
instrprof_error ValueProfData::checkIntegrity() {
Error ValueProfData::checkIntegrity() {
if (NumValueKinds > IPVK_Last + 1)
return instrprof_error::malformed;
return make_error<InstrProfError>(instrprof_error::malformed);
// Total size needs to be mulltiple of quadword size.
if (TotalSize % sizeof(uint64_t))
return instrprof_error::malformed;
return make_error<InstrProfError>(instrprof_error::malformed);
ValueProfRecord *VR = getFirstValueProfRecord(this);
for (uint32_t K = 0; K < this->NumValueKinds; K++) {
if (VR->Kind > IPVK_Last)
return instrprof_error::malformed;
return make_error<InstrProfError>(instrprof_error::malformed);
VR = getValueProfRecordNext(VR);
if ((char *)VR - (char *)this > (ptrdiff_t)TotalSize)
return instrprof_error::malformed;
return make_error<InstrProfError>(instrprof_error::malformed);
}
return instrprof_error::success;
return Error::success();
}
ErrorOr<std::unique_ptr<ValueProfData>>
Expected<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;
return make_error<InstrProfError>(instrprof_error::truncated);
const unsigned char *Header = D;
uint32_t TotalSize = swapToHostOrder<uint32_t>(Header, Endianness);
if (D + TotalSize > BufferEnd)
return instrprof_error::too_large;
return make_error<InstrProfError>(instrprof_error::too_large);
std::unique_ptr<ValueProfData> VPD = allocValueProfData(TotalSize);
memcpy(VPD.get(), D, TotalSize);
// Byte swap.
VPD->swapBytesToHost(Endianness);
instrprof_error EC = VPD->checkIntegrity();
if (EC != instrprof_error::success)
return EC;
Error E = VPD->checkIntegrity();
if (E)
return std::move(E);
return std::move(VPD);
}

175
lib/ProfileData/InstrProfReader.cpp
View File

@ -18,33 +18,33 @@
using namespace llvm;
static ErrorOr<std::unique_ptr<MemoryBuffer>>
static Expected<std::unique_ptr<MemoryBuffer>>
setupMemoryBuffer(std::string Path) {
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
MemoryBuffer::getFileOrSTDIN(Path);
if (std::error_code EC = BufferOrErr.getError())
return EC;
return errorCodeToError(EC);
return std::move(BufferOrErr.get());
}
static std::error_code initializeReader(InstrProfReader &Reader) {
static Error initializeReader(InstrProfReader &Reader) {
return Reader.readHeader();
}
ErrorOr<std::unique_ptr<InstrProfReader>>
Expected<std::unique_ptr<InstrProfReader>>
InstrProfReader::create(std::string Path) {
// Set up the buffer to read.
auto BufferOrError = setupMemoryBuffer(Path);
if (std::error_code EC = BufferOrError.getError())
return EC;
if (Error E = BufferOrError.takeError())
return std::move(E);
return InstrProfReader::create(std::move(BufferOrError.get()));
}
ErrorOr<std::unique_ptr<InstrProfReader>>
Expected<std::unique_ptr<InstrProfReader>>
InstrProfReader::create(std::unique_ptr<MemoryBuffer> Buffer) {
// Sanity check the buffer.
if (Buffer->getBufferSize() > std::numeric_limits<unsigned>::max())
return instrprof_error::too_large;
return make_error<InstrProfError>(instrprof_error::too_large);
std::unique_ptr<InstrProfReader> Result;
// Create the reader.
@ -57,46 +57,49 @@ InstrProfReader::create(std::unique_ptr<MemoryBuffer> Buffer) {
else if (TextInstrProfReader::hasFormat(*Buffer))
Result.reset(new TextInstrProfReader(std::move(Buffer)));
else
return instrprof_error::unrecognized_format;
return make_error<InstrProfError>(instrprof_error::unrecognized_format);
// Initialize the reader and return the result.
if (std::error_code EC = initializeReader(*Result))
return EC;
if (Error E = initializeReader(*Result))
return std::move(E);
return std::move(Result);
}
ErrorOr<std::unique_ptr<IndexedInstrProfReader>>
Expected<std::unique_ptr<IndexedInstrProfReader>>
IndexedInstrProfReader::create(std::string Path) {
// Set up the buffer to read.
auto BufferOrError = setupMemoryBuffer(Path);
if (std::error_code EC = BufferOrError.getError())
return EC;
if (Error E = BufferOrError.takeError())
return std::move(E);
return IndexedInstrProfReader::create(std::move(BufferOrError.get()));
}
ErrorOr<std::unique_ptr<IndexedInstrProfReader>>
Expected<std::unique_ptr<IndexedInstrProfReader>>
IndexedInstrProfReader::create(std::unique_ptr<MemoryBuffer> Buffer) {
// Sanity check the buffer.
if (Buffer->getBufferSize() > std::numeric_limits<unsigned>::max())
return instrprof_error::too_large;
return make_error<InstrProfError>(instrprof_error::too_large);
// Create the reader.
if (!IndexedInstrProfReader::hasFormat(*Buffer))
return instrprof_error::bad_magic;
return make_error<InstrProfError>(instrprof_error::bad_magic);
auto Result = llvm::make_unique<IndexedInstrProfReader>(std::move(Buffer));
// Initialize the reader and return the result.
if (std::error_code EC = initializeReader(*Result))
return EC;
if (Error E = initializeReader(*Result))
return std::move(E);
return std::move(Result);
}
void InstrProfIterator::Increment() {
if (Reader->readNextRecord(Record))
if (auto E = Reader->readNextRecord(Record)) {
// Handle errors in the reader.
InstrProfError::take(std::move(E));
*this = InstrProfIterator();
}
}
bool TextInstrProfReader::hasFormat(const MemoryBuffer &Buffer) {
@ -112,7 +115,7 @@ bool TextInstrProfReader::hasFormat(const MemoryBuffer &Buffer) {
// Read the profile variant flag from the header: ":FE" means this is a FE
// generated profile. ":IR" means this is an IR level profile. Other strings
// with a leading ':' will be reported an error format.
std::error_code TextInstrProfReader::readHeader() {
Error TextInstrProfReader::readHeader() {
Symtab.reset(new InstrProfSymtab());
bool IsIRInstr = false;
if (!Line->startswith(":")) {
@ -125,14 +128,14 @@ std::error_code TextInstrProfReader::readHeader() {
else if (Str.equals_lower("fe"))
IsIRInstr = false;
else
return instrprof_error::bad_header;
return error(instrprof_error::bad_header);
++Line;
IsIRLevelProfile = IsIRInstr;
return success();
}
std::error_code
Error
TextInstrProfReader::readValueProfileData(InstrProfRecord &Record) {
#define CHECK_LINE_END(Line) \
@ -196,7 +199,7 @@ TextInstrProfReader::readValueProfileData(InstrProfRecord &Record) {
#undef VP_READ_ADVANCE
}
std::error_code TextInstrProfReader::readNextRecord(InstrProfRecord &Record) {
Error TextInstrProfReader::readNextRecord(InstrProfRecord &Record) {
// Skip empty lines and comments.
while (!Line.is_at_end() && (Line->empty() || Line->startswith("#")))
++Line;
@ -238,8 +241,8 @@ std::error_code TextInstrProfReader::readNextRecord(InstrProfRecord &Record) {
}
// Check if value profile data exists and read it if so.
if (std::error_code EC = readValueProfileData(Record))
return EC;
if (Error E = readValueProfileData(Record))
return E;
// This is needed to avoid two pass parsing because llvm-profdata
// does dumping while reading.
@ -258,7 +261,7 @@ bool RawInstrProfReader<IntPtrT>::hasFormat(const MemoryBuffer &DataBuffer) {
}
template <class IntPtrT>
std::error_code RawInstrProfReader<IntPtrT>::readHeader() {
Error RawInstrProfReader<IntPtrT>::readHeader() {
if (!hasFormat(*DataBuffer))
return error(instrprof_error::bad_magic);
if (DataBuffer->getBufferSize() < sizeof(RawInstrProf::Header))
@ -270,26 +273,25 @@ std::error_code RawInstrProfReader<IntPtrT>::readHeader() {
}
template <class IntPtrT>
std::error_code
RawInstrProfReader<IntPtrT>::readNextHeader(const char *CurrentPos) {
Error RawInstrProfReader<IntPtrT>::readNextHeader(const char *CurrentPos) {
const char *End = DataBuffer->getBufferEnd();
// Skip zero padding between profiles.
while (CurrentPos != End && *CurrentPos == 0)
++CurrentPos;
// If there's nothing left, we're done.
if (CurrentPos == End)
return instrprof_error::eof;
return make_error<InstrProfError>(instrprof_error::eof);
// If there isn't enough space for another header, this is probably just
// garbage at the end of the file.
if (CurrentPos + sizeof(RawInstrProf::Header) > End)
return instrprof_error::malformed;
return make_error<InstrProfError>(instrprof_error::malformed);
// The writer ensures each profile is padded to start at an aligned address.
if (reinterpret_cast<size_t>(CurrentPos) % alignOf<uint64_t>())
return instrprof_error::malformed;
return make_error<InstrProfError>(instrprof_error::malformed);
// The magic should have the same byte order as in the previous header.
uint64_t Magic = *reinterpret_cast<const uint64_t *>(CurrentPos);
if (Magic != swap(RawInstrProf::getMagic<IntPtrT>()))
return instrprof_error::bad_magic;
return make_error<InstrProfError>(instrprof_error::bad_magic);
// There's another profile to read, so we need to process the header.
auto *Header = reinterpret_cast<const RawInstrProf::Header *>(CurrentPos);
@ -297,11 +299,9 @@ RawInstrProfReader<IntPtrT>::readNextHeader(const char *CurrentPos) {
}
template <class IntPtrT>
std::error_code
RawInstrProfReader<IntPtrT>::createSymtab(InstrProfSymtab &Symtab) {
std::error_code EC = Symtab.create(StringRef(NamesStart, NamesSize));
if (EC)
return EC;
Error RawInstrProfReader<IntPtrT>::createSymtab(InstrProfSymtab &Symtab) {
if (Error E = Symtab.create(StringRef(NamesStart, NamesSize)))
return error(std::move(E));
for (const RawInstrProf::ProfileData<IntPtrT> *I = Data; I != DataEnd; ++I) {
const IntPtrT FPtr = swap(I->FunctionPointer);
if (!FPtr)
@ -313,8 +313,8 @@ RawInstrProfReader<IntPtrT>::createSymtab(InstrProfSymtab &Symtab) {
}
template <class IntPtrT>
std::error_code
RawInstrProfReader<IntPtrT>::readHeader(const RawInstrProf::Header &Header) {
Error RawInstrProfReader<IntPtrT>::readHeader(
const RawInstrProf::Header &Header) {
Version = swap(Header.Version);
if (GET_VERSION(Version) != RawInstrProf::Version)
return error(instrprof_error::unsupported_version);
@ -346,28 +346,27 @@ RawInstrProfReader<IntPtrT>::readHeader(const RawInstrProf::Header &Header) {
ValueDataStart = reinterpret_cast<const uint8_t *>(Start + ValueDataOffset);
std::unique_ptr<InstrProfSymtab> NewSymtab = make_unique<InstrProfSymtab>();
if (auto EC = createSymtab(*NewSymtab.get()))
return EC;
if (Error E = createSymtab(*NewSymtab.get()))
return E;
Symtab = std::move(NewSymtab);
return success();
}
template <class IntPtrT>
std::error_code RawInstrProfReader<IntPtrT>::readName(InstrProfRecord &Record) {
Error RawInstrProfReader<IntPtrT>::readName(InstrProfRecord &Record) {
Record.Name = getName(Data->NameRef);
return success();
}
template <class IntPtrT>
std::error_code RawInstrProfReader<IntPtrT>::readFuncHash(
InstrProfRecord &Record) {
Error RawInstrProfReader<IntPtrT>::readFuncHash(InstrProfRecord &Record) {
Record.Hash = swap(Data->FuncHash);
return success();
}
template <class IntPtrT>
std::error_code RawInstrProfReader<IntPtrT>::readRawCounts(
Error RawInstrProfReader<IntPtrT>::readRawCounts(
InstrProfRecord &Record) {
uint32_t NumCounters = swap(Data->NumCounters);
IntPtrT CounterPtr = Data->CounterPtr;
@ -394,8 +393,8 @@ std::error_code RawInstrProfReader<IntPtrT>::readRawCounts(
}
template <class IntPtrT>
std::error_code
RawInstrProfReader<IntPtrT>::readValueProfilingData(InstrProfRecord &Record) {
Error RawInstrProfReader<IntPtrT>::readValueProfilingData(
InstrProfRecord &Record) {
Record.clearValueData();
CurValueDataSize = 0;
@ -407,13 +406,13 @@ RawInstrProfReader<IntPtrT>::readValueProfilingData(InstrProfRecord &Record) {
if (!NumValueKinds)
return success();
ErrorOr<std::unique_ptr<ValueProfData>> VDataPtrOrErr =
Expected<std::unique_ptr<ValueProfData>> VDataPtrOrErr =
ValueProfData::getValueProfData(
ValueDataStart, (const unsigned char *)DataBuffer->getBufferEnd(),
getDataEndianness());
if (VDataPtrOrErr.getError())
return VDataPtrOrErr.getError();
if (Error E = VDataPtrOrErr.takeError())
return E;
// Note that besides deserialization, this also performs the conversion for
// indirect call targets. The function pointers from the raw profile are
@ -424,28 +423,27 @@ RawInstrProfReader<IntPtrT>::readValueProfilingData(InstrProfRecord &Record) {
}
template <class IntPtrT>
std::error_code
RawInstrProfReader<IntPtrT>::readNextRecord(InstrProfRecord &Record) {
Error RawInstrProfReader<IntPtrT>::readNextRecord(InstrProfRecord &Record) {
if (atEnd())
// At this point, ValueDataStart field points to the next header.
if (std::error_code EC = readNextHeader(getNextHeaderPos()))
return EC;
if (Error E = readNextHeader(getNextHeaderPos()))
return E;
// Read name ad set it in Record.
if (std::error_code EC = readName(Record))
return EC;
if (Error E = readName(Record))
return E;
// Read FuncHash and set it in Record.
if (std::error_code EC = readFuncHash(Record))
return EC;
if (Error E = readFuncHash(Record))
return E;
// Read raw counts and set Record.
if (std::error_code EC = readRawCounts(Record))
return EC;
if (Error E = readRawCounts(Record))
return E;
// Read value data and set Record.
if (std::error_code EC = readValueProfilingData(Record))
return EC;
if (Error E = readValueProfilingData(Record))
return E;
// Iterate.
advanceData();
@ -467,10 +465,10 @@ typedef InstrProfLookupTrait::offset_type offset_type;
bool InstrProfLookupTrait::readValueProfilingData(
const unsigned char *&D, const unsigned char *const End) {
ErrorOr<std::unique_ptr<ValueProfData>> VDataPtrOrErr =
Expected<std::unique_ptr<ValueProfData>> VDataPtrOrErr =
ValueProfData::getValueProfData(D, End, ValueProfDataEndianness);
if (VDataPtrOrErr.getError())
if (VDataPtrOrErr.takeError())
return false;
VDataPtrOrErr.get()->deserializeTo(DataBuffer.back(), nullptr);
@ -526,31 +524,31 @@ data_type InstrProfLookupTrait::ReadData(StringRef K, const unsigned char *D,
}
template <typename HashTableImpl>
std::error_code InstrProfReaderIndex<HashTableImpl>::getRecords(
Error InstrProfReaderIndex<HashTableImpl>::getRecords(
StringRef FuncName, ArrayRef<InstrProfRecord> &Data) {
auto Iter = HashTable->find(FuncName);
if (Iter == HashTable->end())
return instrprof_error::unknown_function;
return make_error<InstrProfError>(instrprof_error::unknown_function);
Data = (*Iter);
if (Data.empty())
return instrprof_error::malformed;
return make_error<InstrProfError>(instrprof_error::malformed);
return instrprof_error::success;
return Error::success();
}
template <typename HashTableImpl>
std::error_code InstrProfReaderIndex<HashTableImpl>::getRecords(
Error InstrProfReaderIndex<HashTableImpl>::getRecords(
ArrayRef<InstrProfRecord> &Data) {
if (atEnd())
return instrprof_error::eof;
return make_error<InstrProfError>(instrprof_error::eof);
Data = *RecordIterator;
if (Data.empty())
return instrprof_error::malformed;
return make_error<InstrProfError>(instrprof_error::malformed);
return instrprof_error::success;
return Error::success();
}
template <typename HashTableImpl>
@ -609,7 +607,7 @@ IndexedInstrProfReader::readSummary(IndexedInstrProf::ProfVersion Version,
}
}
std::error_code IndexedInstrProfReader::readHeader() {
Error IndexedInstrProfReader::readHeader() {
const unsigned char *Start =
(const unsigned char *)DataBuffer->getBufferStart();
const unsigned char *Cur = Start;
@ -661,13 +659,13 @@ InstrProfSymtab &IndexedInstrProfReader::getSymtab() {
return *Symtab.get();
}
ErrorOr<InstrProfRecord>
Expected<InstrProfRecord>
IndexedInstrProfReader::getInstrProfRecord(StringRef FuncName,
uint64_t FuncHash) {
ArrayRef<InstrProfRecord> Data;
std::error_code EC = Index->getRecords(FuncName, Data);
if (EC != instrprof_error::success)
return EC;
Error Err = Index->getRecords(FuncName, Data);
if (Err)
return std::move(Err);
// Found it. Look for counters with the right hash.
for (unsigned I = 0, E = Data.size(); I < E; ++I) {
// Check for a match and fill the vector if there is one.
@ -678,26 +676,25 @@ IndexedInstrProfReader::getInstrProfRecord(StringRef FuncName,
return error(instrprof_error::hash_mismatch);
}
std::error_code
IndexedInstrProfReader::getFunctionCounts(StringRef FuncName, uint64_t FuncHash,
std::vector<uint64_t> &Counts) {
ErrorOr<InstrProfRecord> Record = getInstrProfRecord(FuncName, FuncHash);
if (std::error_code EC = Record.getError())
return EC;
Error IndexedInstrProfReader::getFunctionCounts(StringRef FuncName,
uint64_t FuncHash,
std::vector<uint64_t> &Counts) {
Expected<InstrProfRecord> Record = getInstrProfRecord(FuncName, FuncHash);
if (Error E = Record.takeError())
return error(std::move(E));
Counts = Record.get().Counts;
return success();
}
std::error_code IndexedInstrProfReader::readNextRecord(
InstrProfRecord &Record) {
Error IndexedInstrProfReader::readNextRecord(InstrProfRecord &Record) {
static unsigned RecordIndex = 0;
ArrayRef<InstrProfRecord> Data;
std::error_code EC = Index->getRecords(Data);
if (EC != instrprof_error::success)
return error(EC);
Error E = Index->getRecords(Data);
if (E)
return error(std::move(E));
Record = Data[RecordIndex++];
if (RecordIndex >= Data.size()) {

5
lib/ProfileData/InstrProfWriter.cpp
View File

@ -156,8 +156,7 @@ void InstrProfWriter::setOutputSparse(bool Sparse) {
this->Sparse = Sparse;
}
std::error_code InstrProfWriter::addRecord(InstrProfRecord &&I,
uint64_t Weight) {
Error InstrProfWriter::addRecord(InstrProfRecord &&I, uint64_t Weight) {
auto &ProfileDataMap = FunctionData[I.Name];
bool NewFunc;
@ -180,7 +179,7 @@ std::error_code InstrProfWriter::addRecord(InstrProfRecord &&I,
Dest.sortValueData();
return Dest.getError();
return Dest.takeError();
}
bool InstrProfWriter::shouldEncodeData(const ProfilingData &PD) {

4
lib/Transforms/Instrumentation/InstrProfiling.cpp
View File

@ -388,9 +388,9 @@ void InstrProfiling::emitNameData() {
return;
std::string CompressedNameStr;
if (auto EC = collectPGOFuncNameStrings(ReferencedNames, CompressedNameStr,
if (Error E = collectPGOFuncNameStrings(ReferencedNames, CompressedNameStr,
DoNameCompression)) {
llvm::report_fatal_error(EC.message(), false);
llvm::report_fatal_error(toString(std::move(E)), false);
}
auto &Ctx = M->getContext();

43
lib/Transforms/Instrumentation/PGOInstrumentation.cpp
View File

@ -582,23 +582,28 @@ void PGOUseFunc::setEdgeCount(DirectEdges &Edges, uint64_t Value) {
// Return true if the profile are successfully read, and false on errors.
bool PGOUseFunc::readCounters(IndexedInstrProfReader *PGOReader) {
auto &Ctx = M->getContext();
ErrorOr<InstrProfRecord> Result =
Expected<InstrProfRecord> Result =
PGOReader->getInstrProfRecord(FuncInfo.FuncName, FuncInfo.FunctionHash);
if (std::error_code EC = Result.getError()) {
if (EC == instrprof_error::unknown_function) {
NumOfPGOMissing++;
if (NoPGOWarnMissing)
return false;
} else if (EC == instrprof_error::hash_mismatch ||
EC == llvm::instrprof_error::malformed) {
NumOfPGOMismatch++;
if (NoPGOWarnMismatch)
return false;
}
if (Error E = Result.takeError()) {
handleAllErrors(std::move(E), [&](const InstrProfError &IPE) {
auto Err = IPE.get();
bool SkipWarning = false;
if (Err == instrprof_error::unknown_function) {
NumOfPGOMissing++;
SkipWarning = NoPGOWarnMissing;
} else if (Err == instrprof_error::hash_mismatch ||
Err == instrprof_error::malformed) {
NumOfPGOMismatch++;
SkipWarning = NoPGOWarnMismatch;
}
std::string Msg = EC.message() + std::string(" ") + F.getName().str();
Ctx.diagnose(
DiagnosticInfoPGOProfile(M->getName().data(), Msg, DS_Warning));
if (SkipWarning)
return;
std::string Msg = IPE.message() + std::string(" ") + F.getName().str();
Ctx.diagnose(
DiagnosticInfoPGOProfile(M->getName().data(), Msg, DS_Warning));
});
return false;
}
ProfileRecord = std::move(Result.get());
@ -854,9 +859,11 @@ static bool annotateAllFunctions(
auto &Ctx = M.getContext();
// Read the counter array from file.
auto ReaderOrErr = IndexedInstrProfReader::create(ProfileFileName);
if (std::error_code EC = ReaderOrErr.getError()) {
Ctx.diagnose(
DiagnosticInfoPGOProfile(ProfileFileName.data(), EC.message()));
if (Error E = ReaderOrErr.takeError()) {
handleAllErrors(std::move(E), [&](const ErrorInfoBase &EI) {
Ctx.diagnose(
DiagnosticInfoPGOProfile(ProfileFileName.data(), EI.message()));
});
return false;
}

5
tools/llvm-cov/CodeCoverage.cpp
View File

@ -210,10 +210,9 @@ std::unique_ptr<CoverageMapping> CodeCoverageTool::load() {
errs() << "warning: profile data may be out of date - object is newer\n";
auto CoverageOrErr = CoverageMapping::load(ObjectFilename, PGOFilename,
CoverageArch);
if (std::error_code EC = CoverageOrErr.getError()) {
if (Error E = CoverageOrErr.takeError()) {
colored_ostream(errs(), raw_ostream::RED)
<< "error: Failed to load coverage: " << EC.message();
errs() << "\n";
<< "error: Failed to load coverage: " << toString(std::move(E)) << "\n";
return nullptr;
}
auto Coverage = std::move(CoverageOrErr.get());

68
tools/llvm-profdata/llvm-profdata.cpp
View File

@ -47,38 +47,50 @@ static void exitWithError(const Twine &Message, StringRef Whence = "",
::exit(1);
}
static void exitWithErrorCode(const std::error_code &Error,
StringRef Whence = "") {
if (Error.category() == instrprof_category()) {
instrprof_error instrError = static_cast<instrprof_error>(Error.value());
if (instrError == instrprof_error::unrecognized_format) {
// Hint for common error of forgetting -sample for sample profiles.
exitWithError(Error.message(), Whence,
"Perhaps you forgot to use the -sample option?");
}
static void exitWithError(Error E, StringRef Whence = "") {
if (E.isA<InstrProfError>()) {
handleAllErrors(std::move(E), [&](const InstrProfError &IPE) {
instrprof_error instrError = IPE.get();
StringRef Hint = "";
if (instrError == instrprof_error::unrecognized_format) {
// Hint for common error of forgetting -sample for sample profiles.
Hint = "Perhaps you forgot to use the -sample option?";
}
exitWithError(IPE.message(), Whence, Hint);
});
}
exitWithError(Error.message(), Whence);
exitWithError(toString(std::move(E)), Whence);
}
static void exitWithErrorCode(std::error_code EC, StringRef Whence = "") {
exitWithError(EC.message(), Whence);
}
namespace {
enum ProfileKinds { instr, sample };
}
static void handleMergeWriterError(std::error_code &Error,
StringRef WhenceFile = "",
static void handleMergeWriterError(Error E, StringRef WhenceFile = "",
StringRef WhenceFunction = "",
bool ShowHint = true) {
if (!WhenceFile.empty())
errs() << WhenceFile << ": ";
if (!WhenceFunction.empty())
errs() << WhenceFunction << ": ";
errs() << Error.message() << "\n";
auto IPE = instrprof_error::success;
E = handleErrors(std::move(E),
[&IPE](std::unique_ptr<InstrProfError> E) -> Error {
IPE = E->get();
return Error(std::move(E));
});
errs() << toString(std::move(E)) << "\n";
if (ShowHint) {
StringRef Hint = "";
if (Error.category() == instrprof_category()) {
instrprof_error instrError = static_cast<instrprof_error>(Error.value());
switch (instrError) {
if (IPE != instrprof_error::success) {
switch (IPE) {
case instrprof_error::hash_mismatch:
case instrprof_error::count_mismatch:
case instrprof_error::value_site_count_mismatch:
@ -120,11 +132,11 @@ static void mergeInstrProfile(const WeightedFileVector &Inputs,
exitWithErrorCode(EC, OutputFilename);
InstrProfWriter Writer(OutputSparse);
SmallSet<std::error_code, 4> WriterErrorCodes;
SmallSet<instrprof_error, 4> WriterErrorCodes;
for (const auto &Input : Inputs) {
auto ReaderOrErr = InstrProfReader::create(Input.Filename);
if (std::error_code ec = ReaderOrErr.getError())
exitWithErrorCode(ec, Input.Filename);
if (Error E = ReaderOrErr.takeError())
exitWithError(std::move(E), Input.Filename);
auto Reader = std::move(ReaderOrErr.get());
bool IsIRProfile = Reader->isIRLevelProfile();
@ -132,14 +144,16 @@ static void mergeInstrProfile(const WeightedFileVector &Inputs,
exitWithError("Merge IR generated profile with Clang generated profile.");
for (auto &I : *Reader) {
if (std::error_code EC = Writer.addRecord(std::move(I), Input.Weight)) {
if (Error E = Writer.addRecord(std::move(I), Input.Weight)) {
// Only show hint the first time an error occurs.
bool firstTime = WriterErrorCodes.insert(EC).second;
handleMergeWriterError(EC, Input.Filename, I.Name, firstTime);
instrprof_error IPE = InstrProfError::take(std::move(E));
bool firstTime = WriterErrorCodes.insert(IPE).second;
handleMergeWriterError(make_error<InstrProfError>(IPE), Input.Filename,
I.Name, firstTime);
}
}
if (Reader->hasError())
exitWithErrorCode(Reader->getError(), Input.Filename);
exitWithError(Reader->getError(), Input.Filename);
}
if (OutputFormat == PF_Text)
Writer.writeText(Output);
@ -187,7 +201,7 @@ static void mergeSampleProfile(const WeightedFileVector &Inputs,
sampleprof_error Result = ProfileMap[FName].merge(Samples, Input.Weight);
if (Result != sampleprof_error::success) {
std::error_code EC = make_error_code(Result);
handleMergeWriterError(EC, Input.Filename, FName);
handleMergeWriterError(errorCodeToError(EC), Input.Filename, FName);
}
}
}
@ -268,8 +282,8 @@ static int showInstrProfile(std::string Filename, bool ShowCounts,
Cutoffs = {800000, 900000, 950000, 990000, 999000, 999900, 999990};
}
InstrProfSummary PS(Cutoffs);
if (std::error_code EC = ReaderOrErr.getError())
exitWithErrorCode(EC, Filename);
if (Error E = ReaderOrErr.takeError())
exitWithError(std::move(E), Filename);
auto Reader = std::move(ReaderOrErr.get());
bool IsIRInstr = Reader->isIRLevelProfile();
@ -335,7 +349,7 @@ static int showInstrProfile(std::string Filename, bool ShowCounts,
}
if (Reader->hasError())
exitWithErrorCode(Reader->getError(), Filename);
exitWithError(Reader->getError(), Filename);
if (ShowCounts && TextFormat)
return 0;

18
unittests/ProfileData/CoverageMappingTest.cpp
View File

@ -20,11 +20,11 @@
using namespace llvm;
using namespace coverage;
static ::testing::AssertionResult NoError(std::error_code EC) {
if (!EC)
static ::testing::AssertionResult NoError(Error E) {
if (!E)
return ::testing::AssertionSuccess();
return ::testing::AssertionFailure() << "error " << EC.value()
<< ": " << EC.message();
return ::testing::AssertionFailure() << "error: " << toString(std::move(E))
<< "\n";
}
namespace llvm {
@ -70,14 +70,14 @@ struct CoverageMappingReaderMock : CoverageMappingReader {
CoverageMappingReaderMock(ArrayRef<OutputFunctionCoverageData> Functions)
: Functions(Functions) {}
std::error_code readNextRecord(CoverageMappingRecord &Record) override {
Error readNextRecord(CoverageMappingRecord &Record) override {
if (Functions.empty())
return coveragemap_error::eof;
return make_error<CoverageMapError>(coveragemap_error::eof);
Functions.front().fillCoverageMappingRecord(Record);
Functions = Functions.slice(1);
return coveragemap_error::success;
return Error::success();
}
};
@ -190,7 +190,7 @@ struct CoverageMappingTest : ::testing::Test {
void readProfCounts() {
auto Profile = ProfileWriter.writeBuffer();
auto ReaderOrErr = IndexedInstrProfReader::create(std::move(Profile));
ASSERT_TRUE(NoError(ReaderOrErr.getError()));
ASSERT_TRUE(NoError(ReaderOrErr.takeError()));
ProfileReader = std::move(ReaderOrErr.get());
}
@ -200,7 +200,7 @@ struct CoverageMappingTest : ::testing::Test {
CoverageMappingReaderMock CovReader(OutputFunctions);
auto CoverageOrErr = CoverageMapping::load(CovReader, *ProfileReader);
ASSERT_TRUE(NoError(CoverageOrErr.getError()));
ASSERT_TRUE(NoError(CoverageOrErr.takeError()));
LoadedCoverage = std::move(CoverageOrErr.get());
}
};

88
unittests/ProfileData/InstrProfTest.cpp
View File

@ -19,19 +19,24 @@
using namespace llvm;
static ::testing::AssertionResult NoError(std::error_code EC) {
if (!EC)
static ::testing::AssertionResult NoError(Error E) {
if (!E)
return ::testing::AssertionSuccess();
return ::testing::AssertionFailure() << "error " << EC.value()
<< ": " << EC.message();
return ::testing::AssertionFailure() << "error: " << toString(std::move(E))
<< "\n";
}
static ::testing::AssertionResult ErrorEquals(std::error_code Expected,
std::error_code Found) {
static ::testing::AssertionResult ErrorEquals(instrprof_error Expected,
Error E) {
instrprof_error Found;
std::string FoundMsg;
handleAllErrors(std::move(E), [&](const InstrProfError &IPE) {
Found = IPE.get();
FoundMsg = IPE.message();
});
if (Expected == Found)
return ::testing::AssertionSuccess();
return ::testing::AssertionFailure() << "error " << Found.value()
<< ": " << Found.message();
return ::testing::AssertionFailure() << "error: " << FoundMsg << "\n";
}
namespace {
@ -44,7 +49,7 @@ struct InstrProfTest : ::testing::Test {
void readProfile(std::unique_ptr<MemoryBuffer> Profile) {
auto ReaderOrErr = IndexedInstrProfReader::create(std::move(Profile));
ASSERT_TRUE(NoError(ReaderOrErr.getError()));
ASSERT_TRUE(NoError(ReaderOrErr.takeError()));
Reader = std::move(ReaderOrErr.get());
}
};
@ -90,23 +95,23 @@ TEST_P(MaybeSparseInstrProfTest, get_instr_prof_record) {
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
ErrorOr<InstrProfRecord> R = Reader->getInstrProfRecord("foo", 0x1234);
ASSERT_TRUE(NoError(R.getError()));
Expected<InstrProfRecord> R = Reader->getInstrProfRecord("foo", 0x1234);
ASSERT_TRUE(NoError(R.takeError()));
ASSERT_EQ(2U, R->Counts.size());
ASSERT_EQ(1U, R->Counts[0]);
ASSERT_EQ(2U, R->Counts[1]);
R = Reader->getInstrProfRecord("foo", 0x1235);
ASSERT_TRUE(NoError(R.getError()));
ASSERT_TRUE(NoError(R.takeError()));
ASSERT_EQ(2U, R->Counts.size());
ASSERT_EQ(3U, R->Counts[0]);
ASSERT_EQ(4U, R->Counts[1]);
R = Reader->getInstrProfRecord("foo", 0x5678);
ASSERT_TRUE(ErrorEquals(instrprof_error::hash_mismatch, R.getError()));
ASSERT_TRUE(ErrorEquals(instrprof_error::hash_mismatch, R.takeError()));
R = Reader->getInstrProfRecord("bar", 0x1234);
ASSERT_TRUE(ErrorEquals(instrprof_error::unknown_function, R.getError()));
ASSERT_TRUE(ErrorEquals(instrprof_error::unknown_function, R.takeError()));
}
TEST_P(MaybeSparseInstrProfTest, get_function_counts) {
@ -128,12 +133,11 @@ TEST_P(MaybeSparseInstrProfTest, get_function_counts) {
ASSERT_EQ(3U, Counts[0]);
ASSERT_EQ(4U, Counts[1]);
std::error_code EC;
EC = Reader->getFunctionCounts("foo", 0x5678, Counts);
ASSERT_TRUE(ErrorEquals(instrprof_error::hash_mismatch, EC));
Error E1 = Reader->getFunctionCounts("foo", 0x5678, Counts);
ASSERT_TRUE(ErrorEquals(instrprof_error::hash_mismatch, std::move(E1)));
EC = Reader->getFunctionCounts("bar", 0x1234, Counts);
ASSERT_TRUE(ErrorEquals(instrprof_error::unknown_function, EC));
Error E2 = Reader->getFunctionCounts("bar", 0x1234, Counts);
ASSERT_TRUE(ErrorEquals(instrprof_error::unknown_function, std::move(E2)));
}
// Profile data is copied from general.proftext
@ -235,8 +239,8 @@ TEST_P(MaybeSparseInstrProfTest, get_icall_data_read_write) {
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
ErrorOr<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.getError()));
Expected<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.takeError()));
ASSERT_EQ(4U, R->getNumValueSites(IPVK_IndirectCallTarget));
ASSERT_EQ(3U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 0));
ASSERT_EQ(0U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 1));
@ -266,8 +270,8 @@ TEST_P(MaybeSparseInstrProfTest, annotate_vp_data) {
NoError(Writer.addRecord(std::move(Record)));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
ErrorOr<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.getError()));
Expected<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.takeError()));
LLVMContext Ctx;
std::unique_ptr<Module> M(new Module("MyModule", Ctx));
@ -378,8 +382,8 @@ TEST_P(MaybeSparseInstrProfTest, get_icall_data_read_write_with_weight) {
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
ErrorOr<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.getError()));
Expected<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.takeError()));
ASSERT_EQ(4U, R->getNumValueSites(IPVK_IndirectCallTarget));
ASSERT_EQ(3U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 0));
ASSERT_EQ(0U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 1));
@ -431,8 +435,8 @@ TEST_P(MaybeSparseInstrProfTest, get_icall_data_read_write_big_endian) {
// Set big endian input.
Reader->setValueProfDataEndianness(support::big);
ErrorOr<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.getError()));
Expected<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.takeError()));
ASSERT_EQ(4U, R->getNumValueSites(IPVK_IndirectCallTarget));
ASSERT_EQ(3U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 0));
ASSERT_EQ(0U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 1));
@ -513,8 +517,8 @@ TEST_P(MaybeSparseInstrProfTest, get_icall_data_merge1) {
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
ErrorOr<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.getError()));
Expected<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.takeError()));
ASSERT_EQ(5U, R->getNumValueSites(IPVK_IndirectCallTarget));
ASSERT_EQ(4U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 0));
ASSERT_EQ(0U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 1));
@ -566,23 +570,27 @@ TEST_P(MaybeSparseInstrProfTest, get_icall_data_merge1_saturation) {
InstrProfRecord Record1("foo", 0x1234, {1});
auto Result1 = Writer.addRecord(std::move(Record1));
ASSERT_EQ(Result1, instrprof_error::success);
ASSERT_EQ(InstrProfError::take(std::move(Result1)),
instrprof_error::success);
// Verify counter overflow.
InstrProfRecord Record2("foo", 0x1234, {Max});
auto Result2 = Writer.addRecord(std::move(Record2));
ASSERT_EQ(Result2, instrprof_error::counter_overflow);
ASSERT_EQ(InstrProfError::take(std::move(Result2)),
instrprof_error::counter_overflow);
InstrProfRecord Record3(bar, 0x9012, {8});
auto Result3 = Writer.addRecord(std::move(Record3));
ASSERT_EQ(Result3, instrprof_error::success);
ASSERT_EQ(InstrProfError::take(std::move(Result3)),
instrprof_error::success);
InstrProfRecord Record4("baz", 0x5678, {3, 4});
Record4.reserveSites(IPVK_IndirectCallTarget, 1);
InstrProfValueData VD4[] = {{uint64_t(bar), 1}};
Record4.addValueData(IPVK_IndirectCallTarget, 0, VD4, 1, nullptr);
auto Result4 = Writer.addRecord(std::move(Record4));
ASSERT_EQ(Result4, instrprof_error::success);
ASSERT_EQ(InstrProfError::take(std::move(Result4)),
instrprof_error::success);
// Verify value data counter overflow.
InstrProfRecord Record5("baz", 0x5678, {5, 6});
@ -590,19 +598,21 @@ TEST_P(MaybeSparseInstrProfTest, get_icall_data_merge1_saturation) {
InstrProfValueData VD5[] = {{uint64_t(bar), Max}};
Record5.addValueData(IPVK_IndirectCallTarget, 0, VD5, 1, nullptr);
auto Result5 = Writer.addRecord(std::move(Record5));
ASSERT_EQ(Result5, instrprof_error::counter_overflow);
ASSERT_EQ(InstrProfError::take(std::move(Result5)),
instrprof_error::counter_overflow);
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
// Verify saturation of counts.
ErrorOr<InstrProfRecord> ReadRecord1 =
Expected<InstrProfRecord> ReadRecord1 =
Reader->getInstrProfRecord("foo", 0x1234);
ASSERT_TRUE(NoError(ReadRecord1.getError()));
ASSERT_TRUE(NoError(ReadRecord1.takeError()));
ASSERT_EQ(Max, ReadRecord1->Counts[0]);
ErrorOr<InstrProfRecord> ReadRecord2 =
Expected<InstrProfRecord> ReadRecord2 =
Reader->getInstrProfRecord("baz", 0x5678);
ASSERT_TRUE(bool(ReadRecord2));
ASSERT_EQ(1U, ReadRecord2->getNumValueSites(IPVK_IndirectCallTarget));
std::unique_ptr<InstrProfValueData[]> VD =
ReadRecord2->getValueForSite(IPVK_IndirectCallTarget, 0);
@ -647,8 +657,8 @@ TEST_P(MaybeSparseInstrProfTest, get_icall_data_merge_site_trunc) {
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
ErrorOr<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.getError()));
Expected<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.takeError()));
std::unique_ptr<InstrProfValueData[]> VD(
R->getValueForSite(IPVK_IndirectCallTarget, 0));
ASSERT_EQ(2U, R->getNumValueSites(IPVK_IndirectCallTarget));