LLVM: llvm::sampleprof::FunctionId Class Reference (original) (raw)

This class represents a function that is read from a sample profile. More...

#include "[llvm/ProfileData/FunctionId.h](ProfileData%5F2FunctionId%5F8h%5Fsource.html)"

Public Member Functions
FunctionId ()=default
FunctionId (StringRef Str)
Constructor from a StringRef.
FunctionId (uint64_t HashCode)
Constructor from a hash code.
bool equals (const FunctionId &Other) const
Check for equality.
int compare (const FunctionId &Other) const
Total order comparison.
std::string str () const
Convert to a string, usually for output purpose.
StringRef stringRef () const
Convert to StringRef.
uint64_t getHashCode () const
Get hash code of this object.
bool empty () const
bool isStringRef () const
Check if this object represents a StringRef, or a hash code.

This class represents a function that is read from a sample profile.

It comes with two forms: a string or a hash code. The latter form is the 64-bit MD5 of the function name for efficient storage supported by ExtBinary profile format, and when reading the profile, this class can represent it without converting it to a string first. When representing a hash code, we utilize the LengthOrHashCode field to store it, and Name is set to null. When representing a string, it is same as StringRef.

Definition at line 36 of file FunctionId.h.

llvm::sampleprof::FunctionId::FunctionId ( ) default

◆ FunctionId() [2/3]

llvm::sampleprof::FunctionId::FunctionId ( StringRef Str) inlineexplicit

◆ FunctionId() [3/3]

llvm::sampleprof::FunctionId::FunctionId ( uint64_t HashCode) inlineexplicit

◆ compare()

int llvm::sampleprof::FunctionId::compare ( const FunctionId & Other) const inline

◆ empty()

bool llvm::sampleprof::FunctionId::empty ( ) const inline

◆ equals()

Check for equality.

Similar to StringRef::equals, but will also cover for the case where one or both are hash codes. Comparing their int values are sufficient. A hash code FunctionId is considered not equal to a StringRef FunctionId regardless of actual contents.

Definition at line 76 of file FunctionId.h.

References FunctionId(), and llvm::Other.

◆ getHashCode()

uint64_t llvm::sampleprof::FunctionId::getHashCode ( ) const inline

◆ isStringRef()

bool llvm::sampleprof::FunctionId::isStringRef ( ) const inline

◆ str()

std::string llvm::sampleprof::FunctionId::str ( ) const inline

◆ stringRef()

StringRef llvm::sampleprof::FunctionId::stringRef ( ) const inline

◆ operator<<

The documentation for this class was generated from the following file: