BlockFrequencyInfo.cpp File Reference

#include "llvm/Analysis/BlockFrequencyInfo.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/iterator.h"
#include "llvm/Analysis/BlockFrequencyInfoImpl.h"
#include "llvm/Analysis/BranchProbabilityInfo.h"
#include "llvm/Analysis/LoopInfo.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/CommandLine.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 = BFIDOTGraphTraitsBase< BlockFrequencyInfo, BranchProbabilityInfo >

Functions
static GVDAGType	llvm::getGVDT ()
	INITIALIZE_PASS_BEGIN (BlockFrequencyInfoWrapperPass, "block-freq", "Block Frequency Analysis", true, true) INITIALIZE_PASS_END(BlockFrequencyInfoWrapperPass

Variables
static cl::opt< GVDAGType >	ViewBlockFreqPropagationDAG ("view-block-freq-propagation-dags", cl::Hidden, cl::desc("Pop up a window to show a dag displaying how block " "frequencies propagation through the CFG."), cl::values(clEnumValN(GVDT_None, "none", "do not display graphs."), clEnumValN(GVDT_Fraction, "fraction", "display a graph using the " "fractional block frequency representation."), clEnumValN(GVDT_Integer, "integer", "display a graph using the raw " "integer fractional block frequency representation."), clEnumValN(GVDT_Count, "count", "display a graph using the real " "profile count if available.")))
cl::opt< std::string >	llvm::ViewBlockFreqFuncName ("view-bfi-func-name", cl::Hidden, cl::desc("The option to specify " "the name of the function " "whose CFG will be displayed."))
cl::opt< unsigned >	llvm::ViewHotFreqPercent ("view-hot-freq-percent", cl::init(10), cl::Hidden, cl::desc("An integer in percent used to specify " "the hot blocks/edges to be displayed " "in red: a block or edge whose frequency " "is no less than the max frequency of the " "function multiplied by this percent."))
cl::opt< PGOViewCountsType >	llvm::PGOViewCounts ("pgo-view-counts", cl::Hidden, cl::desc("A boolean option to show CFG dag or text with " "block profile counts and branch probabilities " "right after PGO profile annotation step. The " "profile counts are computed using branch " "probabilities from the runtime profile data and " "block frequency propagation algorithm. To view " "the raw counts from the profile, use option " "-pgo-view-raw-counts instead. To limit graph " "display to only one function, use filtering option " "-view-bfi-func-name."), cl::values(clEnumValN(PGOVCT_None, "none", "do not show."), clEnumValN(PGOVCT_Graph, "graph", "show a graph."), clEnumValN(PGOVCT_Text, "text", "show in text.")))
static cl::opt< bool >	llvm::PrintBFI ("print-bfi", cl::init(false), cl::Hidden, cl::desc("Print the block frequency info."))
cl::opt< std::string >	llvm::PrintBFIFuncName ("print-bfi-func-name", cl::Hidden, cl::desc("The option to specify the name of the function " "whose block frequency info is printed."))
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
	)

Variable Documentation

Analysis

print machine Print Machine Uniformity Info Analysis

Definition at line 300 of file BlockFrequencyInfo.cpp.

Referenced by llvm::AMDGPUTargetLowering::computeNumSignBitsForTargetInstr(), llvm::AnalysisGetter::getAnalysis(), llvm::PassInstrumentation::runAfterAnalysis(), llvm::PassInstrumentation::runAnalysisInvalidated(), llvm::PassInstrumentation::runBeforeAnalysis(), llvm::DOTGraphTraitsViewerWrapperPass< AnalysisT, IsSimple, GraphT, AnalysisGraphTraitsT >::runOnFunction(), and llvm::DOTGraphTraitsPrinterWrapperPass< AnalysisT, IsSimple, GraphT, AnalysisGraphTraitsT >::runOnFunction().

freq

block freq

Definition at line 299 of file BlockFrequencyInfo.cpp.

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

true

block Block Frequency true

Definition at line 300 of file BlockFrequencyInfo.cpp.

ViewBlockFreqPropagationDAG

cl::opt< GVDAGType > ViewBlockFreqPropagationDAG("view-block-freq-propagation-dags", cl::Hidden, cl::desc("Pop up a window to show a dag displaying how block " "frequencies propagation through the CFG."), cl::values(clEnumValN(GVDT_None, "none", "do not display graphs."), clEnumValN(GVDT_Fraction, "fraction", "display a graph using the " "fractional block frequency representation."), clEnumValN(GVDT_Integer, "integer", "display a graph using the raw " "integer fractional block frequency representation."), clEnumValN(GVDT_Count, "count", "display a graph using the real " "profile count if available."))) ( "view-block-freq-propagation-dags"  , cl::Hidden  , cl::desc("Pop up a window to show a dag displaying how block " "frequencies propagation through the CFG.")  , cl::values(clEnumValN(GVDT_None, "none", "do not display graphs."), clEnumValN(GVDT_Fraction, "fraction", "display a graph using the " "fractional block frequency representation."), clEnumValN(GVDT_Integer, "integer", "display a graph using the raw " "integer fractional block frequency representation."), clEnumValN(GVDT_Count, "count", "display a graph using the real " "profile count if available."))    )

static

Referenced by llvm::BlockFrequencyInfo::calculate(), and llvm::getGVDT().