InstrProfiling.cpp File Reference

#include "llvm/Transforms/Instrumentation/InstrProfiling.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Triple.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/Constant.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/Pass.h"
#include "llvm/ProfileData/InstrProf.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Transforms/Utils/ModuleUtils.h"
#include "llvm/Transforms/Utils/SSAUpdater.h"
#include <algorithm>
#include <cassert>
#include <cstddef>
#include <cstdint>
#include <string>
#include "llvm/ProfileData/InstrProfData.inc"

Include dependency graph for InstrProfiling.cpp:

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "instrprof"
#define	VALUE_PROF_FUNC_PARAM(ParamType, ParamName, ParamLLVMType)   ParamLLVMType
#define	VALUE_RANGE_PROF   1
#define	VALUE_PROF_FUNC_PARAM(ParamType, ParamName, ParamLLVMType)   ParamLLVMType
#define	INSTR_PROF_DATA(Type, LLVMType, Name, Init)   LLVMType,
#define	INSTR_PROF_DATA(Type, LLVMType, Name, Init)   Init,
#define	INSTR_PROF_MIN_VAL_COUNTS   10
#define	INSTR_PROF_VALUE_NODE(Type, LLVMType, Name, Init)   LLVMType,

Functions
	INITIALIZE_PASS_BEGIN (InstrProfilingLegacyPass, "instrprof", "Frontend instrumentation-based coverage lowering.", false, false) INITIALIZE_PASS_END(InstrProfilingLegacyPass
static InstrProfIncrementInst *	castToIncrementInst (Instruction *Instr)
static bool	containsProfilingIntrinsics (Module &M)
	Check if the module contains uses of any profiling intrinsics. More...
static Constant *	getOrInsertValueProfilingCall (Module &M, const TargetLibraryInfo &TLI, bool IsRange=false)
static std::string	getVarName (InstrProfIncrementInst *Inc, StringRef Prefix)
	Get the name of a profiling variable for a particular function. More...
static bool	shouldRecordFunctionAddr (Function *F)
static Comdat *	getOrCreateProfileComdat (Module &M, Function &F, InstrProfIncrementInst *Inc)
static bool	needsRuntimeRegistrationOfSectionRange (const Module &M)

Variables
cl::opt< std::string >	MemOPSizeRange ("memop-size-range", cl::desc("Set the range of size in memory intrinsic calls to be profiled " "precisely, in a format of <start_val>:<end_val>"), cl::init(""))
cl::opt< unsigned >	MemOPSizeLarge ("memop-size-large", cl::desc("Set large value thresthold in memory intrinsic size profiling. " "Value of 0 disables the large value profiling."), cl::init(8192))
	instrprof
Frontend instrumentation based coverage	lowering
Frontend instrumentation based coverage	false

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "instrprof"

Definition at line 56 of file InstrProfiling.cpp.

INSTR_PROF_DATA [1/2]

#define INSTR_PROF_DATA	(		Type,
			LLVMType,
			Name,
			Init
	)		LLVMType,

INSTR_PROF_DATA [2/2]

#define INSTR_PROF_DATA	(		Type,
			LLVMType,
			Name,
			Init
	)		Init,

INSTR_PROF_MIN_VAL_COUNTS

#define INSTR_PROF_MIN_VAL_COUNTS   10

Referenced by needsRuntimeRegistrationOfSectionRange().

INSTR_PROF_VALUE_NODE

#define INSTR_PROF_VALUE_NODE	(		Type,
			LLVMType,
			Name,
			Init
	)		LLVMType,

VALUE_PROF_FUNC_PARAM [1/2]

#define VALUE_PROF_FUNC_PARAM	(		ParamType,
			ParamName,
			ParamLLVMType
	)		ParamLLVMType

VALUE_PROF_FUNC_PARAM [2/2]

#define VALUE_PROF_FUNC_PARAM	(		ParamType,
			ParamName,
			ParamLLVMType
	)		ParamLLVMType

VALUE_RANGE_PROF

#define VALUE_RANGE_PROF   1

Function Documentation

castToIncrementInst()

static InstrProfIncrementInst* castToIncrementInst ( Instruction *  Instr )

static

Definition at line 372 of file InstrProfiling.cpp.

References llvm::dyn_cast(), E, F(), llvm::LoopInfoBase< BlockT, LoopT >::getLoopFor(), llvm::LoopInfoBase< BlockT, LoopT >::getLoopsInPreorder(), llvm::BasicBlock::getParent(), I, Loops, and llvm::reverse().

containsProfilingIntrinsics()

static bool containsProfilingIntrinsics ( Module &  M )

static

Check if the module contains uses of any profiling intrinsics.

Definition at line 439 of file InstrProfiling.cpp.

References llvm::Module::getFunction(), llvm::Intrinsic::getName(), llvm::Intrinsic::instrprof_increment, llvm::Intrinsic::instrprof_increment_step, llvm::Intrinsic::instrprof_value_profile, and llvm::Value::use_empty().

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

getOrCreateProfileComdat()

static Comdat* getOrCreateProfileComdat ( Module &  M, Function &  F, InstrProfIncrementInst *  Inc  )

inlinestatic

Definition at line 681 of file InstrProfiling.cpp.

References ComdatPrefix, llvm::getInstrProfComdatPrefix(), llvm::getInstrProfCountersVarPrefix(), llvm::Module::getOrInsertComdat(), llvm::Module::getTargetTriple(), getVarName(), and llvm::needsComdatForCounter().

Referenced by needsRuntimeRegistrationOfSectionRange().

getOrInsertValueProfilingCall()

static Constant* getOrInsertValueProfilingCall ( Module &  M, const TargetLibraryInfo &  TLI, bool  IsRange = false  )

static

Definition at line 512 of file InstrProfiling.cpp.

References llvm::AtomicRMWInst::Add, llvm::CallBase::addParamAttr(), llvm::AMDGPU::HSAMD::Kernel::Key::Args, assert(), llvm::IRBuilder< T, Inserter >::CreateAdd(), llvm::IRBuilder< T, Inserter >::CreateAtomicRMW(), llvm::IRBuilder< T, Inserter >::CreateConstInBoundsGEP2_64(), llvm::IRBuilder< T, Inserter >::CreateLoad(), llvm::IRBuilder< T, Inserter >::CreateStore(), llvm::User::dropAllReferences(), E, llvm::Instruction::eraseFromParent(), llvm::GlobalVariable::eraseFromParent(), llvm::FunctionType::get(), llvm::Module::getContext(), llvm::TargetLibraryInfo::getExtAttrForI32Param(), llvm::InstrProfIncrementInst::getIndex(), llvm::InstrProfValueProfileInst::getIndex(), llvm::GlobalVariable::getInitializer(), llvm::getInstrProfValueProfFuncName(), llvm::getInstrProfValueRangeProfFuncName(), llvm::InstrProfValueProfileInst::getName(), llvm::User::getNumOperands(), llvm::User::getOperand(), llvm::Module::getOrInsertFunction(), llvm::InstrProfIncrementInst::getStep(), llvm::InstrProfValueProfileInst::getTargetValue(), llvm::InstrProfValueProfileInst::getValueKind(), llvm::Type::getVoidTy(), llvm::ConstantInt::getZExtValue(), I, INT64_MIN, Kind, llvm::SPII::Load, llvm::makeArrayRef(), MemOPSizeLarge, llvm::Monotonic, Name, NC, llvm::X86II::PD, llvm::GlobalValue::PrivateLinkage, llvm::Value::replaceAllUsesWith(), llvm::GlobalValue::setLinkage(), llvm::SPII::Store, and llvm::Constant::stripPointerCasts().

getVarName()

static std::string getVarName ( InstrProfIncrementInst *  Inc, StringRef  Prefix  )

static

Get the name of a profiling variable for a particular function.

Definition at line 636 of file InstrProfiling.cpp.

References llvm::canRenameComdatFunc(), llvm::StringRef::endswith(), llvm::InstrProfIncrementInst::getHash(), llvm::getInstrProfNameVarPrefix(), llvm::Value::getName(), llvm::InstrProfIncrementInst::getName(), llvm::Instruction::getParent(), llvm::BasicBlock::getParent(), llvm::GlobalValue::getParent(), llvm::ConstantInt::getZExtValue(), llvm::isIRPGOFlagSet(), Name, llvm::StringRef::size(), llvm::StringRef::substr(), and llvm::toStringRef().

Referenced by getOrCreateProfileComdat(), and needsRuntimeRegistrationOfSectionRange().

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	InstrProfilingLegacyPass	,
		"instrprof"	,
		"Frontend instrumentation-based coverage lowering."	,
		false	,
		false
	)

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

needsRuntimeRegistrationOfSectionRange()

static bool needsRuntimeRegistrationOfSectionRange ( const Module &  M )

static

Definition at line 696 of file InstrProfiling.cpp.

References llvm::appendToGlobalCtors(), llvm::appendToUsed(), llvm::collectPGOFuncNameStrings(), llvm::BasicBlock::Create(), llvm::Function::Create(), llvm::IRBuilder< T, Inserter >::CreateBitCast(), llvm::IRBuilder< T, Inserter >::CreateCall(), llvm::IRBuilder< T, Inserter >::CreateLoad(), llvm::IRBuilder< T, Inserter >::CreateRet(), llvm::IRBuilder< T, Inserter >::CreateRetVoid(), llvm::Data, E, llvm::StringRef::empty(), llvm::GlobalValue::ExternalLinkage, F(), llvm::ConstantInt::get(), llvm::FunctionType::get(), llvm::StructType::get(), llvm::ArrayType::get(), llvm::ConstantStruct::get(), llvm::ConstantPointerNull::get(), llvm::ConstantExpr::getBitCast(), llvm::Module::getContext(), llvm::Module::getFunction(), llvm::Module::getGlobalVariable(), llvm::getInstrProfCountersVarPrefix(), llvm::getInstrProfDataVarPrefix(), llvm::getInstrProfInitFuncName(), llvm::getInstrProfNamesRegFuncName(), llvm::getInstrProfNamesVarName(), llvm::getInstrProfRegFuncName(), llvm::getInstrProfRegFuncsName(), llvm::getInstrProfRuntimeHookVarName(), llvm::getInstrProfRuntimeHookVarUseFuncName(), llvm::getInstrProfSectionName(), llvm::getInstrProfValuesVarPrefix(), llvm::getInstrProfVNodesVarName(), llvm::Type::getInt16Ty(), llvm::Type::getInt32Ty(), llvm::IRBuilderBase::getInt64(), llvm::Type::getInt64Ty(), llvm::Type::getInt8PtrTy(), llvm::GlobalValue::getLinkage(), llvm::Value::getName(), llvm::InstrProfIncrementInst::getName(), llvm::Constant::getNullValue(), llvm::InstrProfIncrementInst::getNumCounters(), getOrCreateProfileComdat(), llvm::Module::getOrInsertComdat(), llvm::Instruction::getParent(), llvm::BasicBlock::getParent(), llvm::ConstantDataArray::getString(), llvm::Module::getTargetTriple(), llvm::Value::getType(), getVarName(), llvm::GlobalValue::getVisibility(), llvm::Type::getVoidTy(), llvm::ConstantInt::getZExtValue(), llvm::GlobalValue::Global, llvm::GlobalValue::HiddenVisibility, if(), INSTR_PROF_MIN_VAL_COUNTS, Int32Ty, llvm::GlobalValue::InternalLinkage, Kind, llvm::GlobalValue::LinkOnceODRLinkage, llvm::SPII::Load, llvm::makeArrayRef(), llvm::max(), llvm::Attribute::NoInline, llvm::Attribute::NoRedZone, llvm::X86II::PD, llvm::GlobalValue::PrivateLinkage, llvm::report_fatal_error(), llvm::GlobalValue::setLinkage(), llvm::GlobalObject::setSection(), llvm::GlobalValue::setVisibility(), shouldRecordFunctionAddr(), llvm::toString(), and llvm::GlobalValue::WeakAnyLinkage.

shouldRecordFunctionAddr()

static bool shouldRecordFunctionAddr ( Function *  F )

inlinestatic

Definition at line 651 of file InstrProfiling.cpp.

References llvm::Attribute::AlwaysInline, llvm::Function::hasAddressTaken(), llvm::GlobalValue::hasAvailableExternallyLinkage(), llvm::GlobalObject::hasComdat(), llvm::Function::hasFnAttribute(), llvm::GlobalValue::hasLinkOnceLinkage(), and llvm::GlobalValue::hasLocalLinkage().

Referenced by needsRuntimeRegistrationOfSectionRange().

Variable Documentation

false

Frontend instrumentation based coverage false

Definition at line 364 of file InstrProfiling.cpp.

instrprof

instrprof

Definition at line 364 of file InstrProfiling.cpp.

lowering

Frontend instrumentation based coverage lowering

Definition at line 364 of file InstrProfiling.cpp.

MemOPSizeLarge

cl::opt<unsigned> MemOPSizeLarge("memop-size-large", cl::desc("Set large value thresthold in memory intrinsic size profiling. " "Value of 0 disables the large value profiling."), cl::init(8192))

Referenced by getOrInsertValueProfilingCall().

MemOPSizeRange

cl::opt<std::string> MemOPSizeRange("memop-size-range", cl::desc("Set the range of size in memory intrinsic calls to be profiled " "precisely, in a format of <start_val>:<end_val>"), cl::init(""))

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