BlockFrequencyInfo.cpp File Reference

#include "llvm/Analysis/BlockFrequencyInfo.h"
#include "AnalysisOptions.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/iterator.h"
#include "llvm/Analysis/BlockFrequencyInfoImpl.h"
#include "llvm/Analysis/BranchProbabilityInfo.h"
#include "llvm/Analysis/CycleAnalysis.h"
#include "llvm/IR/CFG.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/PassManager.h"
#include "llvm/InitializePasses.h"
#include "llvm/Pass.h"
#include "llvm/Support/GraphWriter.h"
#include "llvm/Support/raw_ostream.h"
#include <cassert>
#include <optional>
#include <string>

Go to the source code of this file.

Classes
struct	llvm::GraphTraits< BlockFrequencyInfo * >
struct	llvm::DOTGraphTraits< BlockFrequencyInfo * >

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

Macros
#define	DEBUG_TYPE   "block-freq"

Typedefs
using	llvm::BFIDOTGTraitsBase

Functions
static GVDAGType	llvm::getGVDT (const LLVMContext &C)
static uint64_t	scaleFrequency (uint64_t BBFreq, uint64_t NewFreq, uint64_t OldFreq)
	Return min(BBFreq * NewFreq / OldFreq, UINT64_MAX).
	INITIALIZE_PASS_BEGIN (BlockFrequencyInfoWrapperPass, "block-freq", "Block Frequency Analysis", true, true) INITIALIZE_PASS_END(BlockFrequencyInfoWrapperPass

Variables
block	freq
block Block Frequency	Analysis
block Block Frequency	true

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "block-freq"

Definition at line 33 of file BlockFrequencyInfo.cpp.

Function Documentation

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	BlockFrequencyInfoWrapperPass	,
		"block-freq"	,
		"Block Frequency Analysis"	,
		true	,
		true	)

References INITIALIZE_PASS_DEPENDENCY.

scaleFrequency()

uint64_t scaleFrequency ( uint64_t BBFreq, uint64_t NewFreq, uint64_t OldFreq )

static

Return min(BBFreq * NewFreq / OldFreq, UINT64_MAX).

Multiplies before dividing, to minimize loss of precision.

Definition at line 194 of file BlockFrequencyInfo.cpp.

References assert(), BBFreq, Scaled, UINT64_MAX, and uint64_t.

Referenced by llvm::BlockFrequencyInfo::setBlockFreqAndScale().

Variable Documentation

Analysis

print machine Print Machine Uniformity Info Analysis

Definition at line 268 of file BlockFrequencyInfo.cpp.

Referenced by canConvertToFMA(), llvm::TargetLowering::computeKnownAlignForTargetInstr(), llvm::RISCVTargetLowering::computeKnownBitsForTargetInstr(), llvm::TargetLowering::computeKnownBitsForTargetInstr(), llvm::TargetLowering::computeKnownFPClassForTargetInstr(), llvm::AArch64TargetLowering::computeNumSignBitsForTargetInstr(), llvm::AMDGPUTargetLowering::computeNumSignBitsForTargetInstr(), llvm::TargetLowering::computeNumSignBitsForTargetInstr(), llvm::MIR2VecVocabPrinterLegacyPass::doFinalization(), llvm::AnalysisGetter::getAnalysis(), llvm::AnalysisGetter::HasLegacyWrapper(), llvm::AMDGPUTargetLowering::PostISelFolding(), llvm::DOTGraphTraitsPrinterWrapperPass< AnalysisT, IsSimple, GraphT, AnalysisGraphTraitsT >::processFunction(), llvm::DOTGraphTraitsViewerWrapperPass< AnalysisT, IsSimple, GraphT, AnalysisGraphTraitsT >::processFunction(), llvm::PassInstrumentation::runAfterAnalysis(), llvm::PassInstrumentation::runAnalysisInvalidated(), llvm::PassInstrumentation::runBeforeAnalysis(), llvm::DOTGraphTraitsPrinterWrapperPass< AnalysisT, IsSimple, GraphT, AnalysisGraphTraitsT >::runOnFunction(), llvm::DOTGraphTraitsViewerWrapperPass< AnalysisT, IsSimple, GraphT, AnalysisGraphTraitsT >::runOnFunction(), llvm::MIR2VecPrinterLegacyPass::runOnMachineFunction(), and scanAssociativeOperands().

freq

block freq

Definition at line 267 of file BlockFrequencyInfo.cpp.

Referenced by llvm::SpillPlacement::Node::addBias(), and llvm::DOTGraphTraits< CallGraphDOTInfo * >::getNodeAttributes().

true

block Block Frequency true

Definition at line 268 of file BlockFrequencyInfo.cpp.