LowerAllowCheckPass.cpp File Reference

#include "llvm/Transforms/Instrumentation/LowerAllowCheckPass.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Analysis/OptimizationRemarkEmitter.h"
#include "llvm/Analysis/ProfileSummaryInfo.h"
#include "llvm/IR/Constant.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/RandomNumberGenerator.h"
#include <memory>
#include <random>

Go to the source code of this file.

Classes
struct	RemarkInfo

Macros
#define	DEBUG_TYPE   "lower-allow-check"

Functions
	STATISTIC (NumChecksTotal, "Number of checks")
	STATISTIC (NumChecksRemoved, "Number of removed checks")
static void	emitRemark (IntrinsicInst *II, OptimizationRemarkEmitter &ORE, bool Removed)
static bool	removeUbsanTraps (Function &F, const BlockFrequencyInfo &BFI, const ProfileSummaryInfo *PSI, OptimizationRemarkEmitter &ORE)

Variables
static cl::opt< int >	HotPercentileCutoff ("lower-allow-check-percentile-cutoff-hot", cl::desc("Hot percentile cuttoff."))
static cl::opt< float >	RandomRate ("lower-allow-check-random-rate", cl::desc("Probability value in the range [0.0, 1.0] of " "unconditional pseudo-random checks."))

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "lower-allow-check"

Definition at line 30 of file LowerAllowCheckPass.cpp.

Function Documentation

emitRemark()

static void emitRemark ( IntrinsicInst *  II, OptimizationRemarkEmitter &  ORE, bool  Removed  )

static

Definition at line 54 of file LowerAllowCheckPass.cpp.

References DEBUG_TYPE, llvm::OptimizationRemarkEmitter::emit(), II, and Info.

Referenced by removeUbsanTraps().

removeUbsanTraps()

static bool removeUbsanTraps ( Function &  F, const BlockFrequencyInfo &  BFI, const ProfileSummaryInfo *  PSI, OptimizationRemarkEmitter &  ORE  )

static

Definition at line 73 of file LowerAllowCheckPass.cpp.

References emitRemark(), llvm::SmallVectorBase< Size_T >::empty(), F, llvm::ConstantInt::getBool(), HotPercentileCutoff, I, II, llvm::ProfileSummaryInfo::isHotCountNthPercentile(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), RandomRate, and ToRemove.

Referenced by llvm::LowerAllowCheckPass::run().

STATISTIC() [1/2]

STATISTIC	(	NumChecksRemoved	,
		"Number of removed checks"
	)

STATISTIC() [2/2]

STATISTIC	(	NumChecksTotal	,
		"Number of checks"
	)

Variable Documentation

HotPercentileCutoff

cl::opt< int > HotPercentileCutoff("lower-allow-check-percentile-cutoff-hot", cl::desc("Hot percentile cuttoff.")) ( "lower-allow-check-percentile-cutoff-hot"  , cl::desc("Hot percentile cuttoff.")    )

static

Referenced by llvm::LowerAllowCheckPass::IsRequested(), and removeUbsanTraps().

RandomRate

cl::opt< float > RandomRate("lower-allow-check-random-rate", cl::desc("Probability value in the range [0.0, 1.0] of " "unconditional pseudo-random checks.")) ( "lower-allow-check-random-rate"  , cl::desc("Probability value in the range [0.0, 1.0] of " "unconditional pseudo-random checks.")    )

static

Referenced by llvm::LowerAllowCheckPass::IsRequested(), and removeUbsanTraps().