ProfDataUtils.h File Reference

This file contains the declarations for profiling metadata utility functions. More...

#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Twine.h"
#include "llvm/IR/Metadata.h"

Go to the source code of this file.

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.

Functions
bool	llvm::hasProfMD (const Instruction &I)
	Checks if an Instruction has MD_prof Metadata.
bool	llvm::isBranchWeightMD (const MDNode *ProfileData)
	Checks if an MDNode contains Branch Weight Metadata.
bool	llvm::hasBranchWeightMD (const Instruction &I)
	Checks if an instructions has Branch Weight Metadata.
bool	llvm::hasValidBranchWeightMD (const Instruction &I)
	Checks if an instructions has valid Branch Weight Metadata.
MDNode *	llvm::getBranchWeightMDNode (const Instruction &I)
	Get the branch weights metadata node.
MDNode *	llvm::getValidBranchWeightMDNode (const Instruction &I)
	Get the valid branch weights metadata node.
bool	llvm::hasBranchWeightOrigin (const Instruction &I)
	Check if Branch Weight Metadata has an "expected" field from an llvm.expect* intrinsic.
bool	llvm::hasBranchWeightOrigin (const MDNode *ProfileData)
	Check if Branch Weight Metadata has an "expected" field from an llvm.expect* intrinsic.
unsigned	llvm::getBranchWeightOffset (const MDNode *ProfileData)
	Return the offset to the first branch weight data.
unsigned	llvm::getNumBranchWeights (const MDNode &ProfileData)
bool	llvm::extractBranchWeights (const MDNode *ProfileData, SmallVectorImpl< uint32_t > &Weights)
	Extract branch weights from MD_prof metadata.
void	llvm::extractFromBranchWeightMD32 (const MDNode *ProfileData, SmallVectorImpl< uint32_t > &Weights)
	Faster version of extractBranchWeights() that skips checks and must only be called with "branch_weights" metadata nodes.
void	llvm::extractFromBranchWeightMD64 (const MDNode *ProfileData, SmallVectorImpl< uint64_t > &Weights)
	Faster version of extractBranchWeights() that skips checks and must only be called with "branch_weights" metadata nodes.
bool	llvm::extractBranchWeights (const Instruction &I, SmallVectorImpl< uint32_t > &Weights)
	Extract branch weights attatched to an Instruction.
bool	llvm::extractBranchWeights (const Instruction &I, uint64_t &TrueVal, uint64_t &FalseVal)
	Extract branch weights from a conditional branch or select Instruction.
bool	llvm::extractProfTotalWeight (const MDNode *ProfileData, uint64_t &TotalWeights)
	Retrieve the total of all weights from MD_prof data.
bool	llvm::extractProfTotalWeight (const Instruction &I, uint64_t &TotalWeights)
	Retrieve the total of all weights from an instruction.
void	llvm::setBranchWeights (Instruction &I, ArrayRef< uint32_t > Weights, bool IsExpected)
	Create a new branch_weights metadata node and add or overwrite a prof metadata reference to instruction I.
void	llvm::scaleProfData (Instruction &I, uint64_t S, uint64_t T)
	Scaling the profile data attached to 'I' using the ratio of S/T.

Detailed Description

This file contains the declarations for profiling metadata utility functions.

Definition in file ProfDataUtils.h.