#include "llvm/Transforms/IPO/Attributor.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMapInfo.h"
#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/SCCIterator.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SetOperations.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/Analysis/AssumeBundleQueries.h"
#include "llvm/Analysis/AssumptionCache.h"
#include "llvm/Analysis/CaptureTracking.h"
#include "llvm/Analysis/CycleAnalysis.h"
#include "llvm/Analysis/InstructionSimplify.h"
#include "llvm/Analysis/LazyValueInfo.h"
#include "llvm/Analysis/MemoryBuiltins.h"
#include "llvm/Analysis/OptimizationRemarkEmitter.h"
#include "llvm/Analysis/ScalarEvolution.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/Argument.h"
#include "llvm/IR/Assumptions.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/Constant.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/InlineAsm.h"
#include "llvm/IR/InstrTypes.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/IntrinsicsAMDGPU.h"
#include "llvm/IR/IntrinsicsNVPTX.h"
#include "llvm/IR/NoFolder.h"
#include "llvm/IR/Value.h"
#include "llvm/IR/ValueHandle.h"
#include "llvm/Support/Alignment.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/GraphWriter.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Transforms/Utils/Local.h"
#include "llvm/Transforms/Utils/ValueMapper.h"
#include <cassert>
#include <numeric>
#include <optional>

Classes
struct	llvm::DenseMapInfo< AAPointerInfo::Access >
	Helper for AA::PointerInfo::Access DenseMap/Set usage. More...

struct	llvm::DenseMapInfo< AA::RangeTy >
	Helper that allows RangeTy as a key in a DenseMap. More...

struct	llvm::AccessAsInstructionInfo
	Helper for AA::PointerInfo::Access DenseMap/Set usage ignoring everythign but the instruction. More...

struct	llvm::AA::PointerInfo::State
	A type to track pointer/struct usage and accesses for AAPointerInfo. More...

struct	ReachabilityQueryInfo< ToTy >
	----------------—AAIntraFnReachability Attribute-----------------------— More...

struct	llvm::DenseMapInfo< ReachabilityQueryInfo< ToTy > * >

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

namespace	llvm::AA
	Abstract Attribute helper functions.

namespace	llvm::AA::PointerInfo

Macros
#define	DEBUG_TYPE "attributor"

#define	BUILD_STAT_MSG_IR_ATTR(TYPE, NAME) ("Number of " #TYPE " marked '" #NAME "'")

#define	BUILD_STAT_NAME(NAME, TYPE) NumIR##TYPE##_##NAME

#define	STATS_DECL_(NAME, MSG) STATISTIC(NAME, MSG);

#define	STATS_DECL(NAME, TYPE, MSG) STATS_DECL_(BUILD_STAT_NAME(NAME, TYPE), MSG);

#define	STATS_TRACK(NAME, TYPE) ++(BUILD_STAT_NAME(NAME, TYPE));

#define	STATS_DECLTRACK(NAME, TYPE, MSG)

#define	STATS_DECLTRACK_ARG_ATTR(NAME) STATS_DECLTRACK(NAME, Arguments, BUILD_STAT_MSG_IR_ATTR(arguments, NAME))

#define	STATS_DECLTRACK_CSARG_ATTR(NAME)

#define	STATS_DECLTRACK_FN_ATTR(NAME) STATS_DECLTRACK(NAME, Function, BUILD_STAT_MSG_IR_ATTR(functions, NAME))

#define	STATS_DECLTRACK_CS_ATTR(NAME) STATS_DECLTRACK(NAME, CS, BUILD_STAT_MSG_IR_ATTR(call site, NAME))

#define	STATS_DECLTRACK_FNRET_ATTR(NAME)

#define	STATS_DECLTRACK_CSRET_ATTR(NAME)

#define	STATS_DECLTRACK_FLOATING_ATTR(NAME)

#define	PIPE_OPERATOR(CLASS)

#define	DefineKeys(ToTy)

#define	SWITCH_PK_INV(CLASS, PK, POS_NAME)

#define	SWITCH_PK_CREATE(CLASS, IRP, PK, SUFFIX)

#define	CREATE_FUNCTION_ABSTRACT_ATTRIBUTE_FOR_POSITION(CLASS)

#define	CREATE_VALUE_ABSTRACT_ATTRIBUTE_FOR_POSITION(CLASS)

#define	CREATE_ALL_ABSTRACT_ATTRIBUTE_FOR_POSITION(CLASS)

#define	CREATE_FUNCTION_ONLY_ABSTRACT_ATTRIBUTE_FOR_POSITION(CLASS)

#define	CREATE_NON_RET_ABSTRACT_ATTRIBUTE_FOR_POSITION(CLASS)

Functions
	STATISTIC (NumAAs, "Number of abstract attributes created")

template<>
ChangeStatus	llvm::clampStateAndIndicateChange< DerefState > (DerefState &S, const DerefState &R)

static bool	mayBeInCycle (const CycleInfo CI, const Instruction I, bool HeaderOnly, Cycle **CPtr=nullptr)

static bool	isDenselyPacked (Type *Ty, const DataLayout &DL)
	Checks if a type could have padding bytes.

static const Value *	getPointerOperand (const Instruction *I, bool AllowVolatile)
	Get pointer operand of memory accessing instruction.

static Value *	constructPointer (Type ResTy, Type PtrElemTy, Value *Ptr, int64_t Offset, IRBuilder< NoFolder > &IRB, const DataLayout &DL)
	Helper function to create a pointer of type `ResTy`, based on `Ptr`, and advanced by `Offset` bytes.

static const Value *	stripAndAccumulateOffsets (Attributor &A, const AbstractAttribute &QueryingAA, const Value *Val, const DataLayout &DL, APInt &Offset, bool GetMinOffset, bool AllowNonInbounds, bool UseAssumed=false)

static const Value *	getMinimalBaseOfPointer (Attributor &A, const AbstractAttribute &QueryingAA, const Value *Ptr, int64_t &BytesOffset, const DataLayout &DL, bool AllowNonInbounds=false)

template<typename AAType , typename StateType = typename AAType::StateType>
static void	clampReturnedValueStates (Attributor &A, const AAType &QueryingAA, StateType &S, const IRPosition::CallBaseContext *CBContext=nullptr)
	Clamp the information known for all returned values of a function (identified by `QueryingAA`) into `S`.

template<typename AAType >
static std::optional< Constant * >	askForAssumedConstant (Attributor &A, const AbstractAttribute &QueryingAA, const IRPosition &IRP, Type &Ty)

Variables
static cl::opt< bool >	ManifestInternal ("attributor-manifest-internal", cl::Hidden, cl::desc("Manifest Attributor internal string attributes."), cl::init(false))

static cl::opt< int >	MaxHeapToStackSize ("max-heap-to-stack-size", cl::init(128), cl::Hidden)

static cl::opt< unsigned, true >	MaxPotentialValues ("attributor-max-potential-values", cl::Hidden, cl::desc("Maximum number of potential values to be " "tracked for each position."), cl::location(llvm::PotentialConstantIntValuesState::MaxPotentialValues), cl::init(7))

static cl::opt< int >	MaxPotentialValuesIterations ("attributor-max-potential-values-iterations", cl::Hidden, cl::desc("Maximum number of iterations we keep dismantling potential values."), cl::init(64))

Macro Definition Documentation

◆ BUILD_STAT_MSG_IR_ATTR

#define BUILD_STAT_MSG_IR_ATTR	(	TYPE,
		NAME
	)	("Number of " #TYPE " marked '" #NAME "'")

Definition at line 116 of file AttributorAttributes.cpp.

◆ BUILD_STAT_NAME

#define BUILD_STAT_NAME	(	NAME,
		TYPE
	)	NumIR##TYPE##_##NAME

Definition at line 118 of file AttributorAttributes.cpp.

◆ CREATE_ALL_ABSTRACT_ATTRIBUTE_FOR_POSITION

#define CREATE_ALL_ABSTRACT_ATTRIBUTE_FOR_POSITION ( CLASS )

Value:

  CLASS &CLASS::createForPosition(const IRPosition &IRP, Attributor &A) {      \
    CLASS *AA = nullptr;                                                       \
    switch (IRP.getPositionKind()) {                                           \
      SWITCH_PK_INV(CLASS, IRP_INVALID, "invalid")                             \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_FUNCTION, Function)                     \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_CALL_SITE, CallSite)                    \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_FLOAT, Floating)                        \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_ARGUMENT, Argument)                     \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_RETURNED, Returned)                     \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_CALL_SITE_RETURNED, CallSiteReturned)   \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_CALL_SITE_ARGUMENT, CallSiteArgument)   \
    }                                                                          \
    return *AA;                                                                \
  }

Definition at line 11943 of file AttributorAttributes.cpp.

◆ CREATE_FUNCTION_ABSTRACT_ATTRIBUTE_FOR_POSITION

#define CREATE_FUNCTION_ABSTRACT_ATTRIBUTE_FOR_POSITION ( CLASS )

Value:

  CLASS &CLASS::createForPosition(const IRPosition &IRP, Attributor &A) {      \
    CLASS *AA = nullptr;                                                       \
    switch (IRP.getPositionKind()) {                                           \
      SWITCH_PK_INV(CLASS, IRP_INVALID, "invalid")                             \
      SWITCH_PK_INV(CLASS, IRP_FLOAT, "floating")                              \
      SWITCH_PK_INV(CLASS, IRP_ARGUMENT, "argument")                           \
      SWITCH_PK_INV(CLASS, IRP_RETURNED, "returned")                           \
      SWITCH_PK_INV(CLASS, IRP_CALL_SITE_RETURNED, "call site returned")       \
      SWITCH_PK_INV(CLASS, IRP_CALL_SITE_ARGUMENT, "call site argument")       \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_FUNCTION, Function)                     \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_CALL_SITE, CallSite)                    \
    }                                                                          \
    return *AA;                                                                \
  }

Definition at line 11911 of file AttributorAttributes.cpp.

◆ CREATE_FUNCTION_ONLY_ABSTRACT_ATTRIBUTE_FOR_POSITION

#define CREATE_FUNCTION_ONLY_ABSTRACT_ATTRIBUTE_FOR_POSITION ( CLASS )

Value:

  CLASS &CLASS::createForPosition(const IRPosition &IRP, Attributor &A) {      \
    CLASS *AA = nullptr;                                                       \
    switch (IRP.getPositionKind()) {                                           \
      SWITCH_PK_INV(CLASS, IRP_INVALID, "invalid")                             \
      SWITCH_PK_INV(CLASS, IRP_ARGUMENT, "argument")                           \
      SWITCH_PK_INV(CLASS, IRP_FLOAT, "floating")                              \
      SWITCH_PK_INV(CLASS, IRP_RETURNED, "returned")                           \
      SWITCH_PK_INV(CLASS, IRP_CALL_SITE_RETURNED, "call site returned")       \
      SWITCH_PK_INV(CLASS, IRP_CALL_SITE_ARGUMENT, "call site argument")       \
      SWITCH_PK_INV(CLASS, IRP_CALL_SITE, "call site")                         \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_FUNCTION, Function)                     \
    }                                                                          \
    return *AA;                                                                \
  }

Definition at line 11959 of file AttributorAttributes.cpp.

◆ CREATE_NON_RET_ABSTRACT_ATTRIBUTE_FOR_POSITION

#define CREATE_NON_RET_ABSTRACT_ATTRIBUTE_FOR_POSITION ( CLASS )

Value:

  CLASS &CLASS::createForPosition(const IRPosition &IRP, Attributor &A) {      \
    CLASS *AA = nullptr;                                                       \
    switch (IRP.getPositionKind()) {                                           \
      SWITCH_PK_INV(CLASS, IRP_INVALID, "invalid")                             \
      SWITCH_PK_INV(CLASS, IRP_RETURNED, "returned")                           \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_FUNCTION, Function)                     \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_CALL_SITE, CallSite)                    \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_FLOAT, Floating)                        \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_ARGUMENT, Argument)                     \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_CALL_SITE_RETURNED, CallSiteReturned)   \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_CALL_SITE_ARGUMENT, CallSiteArgument)   \
    }                                                                          \
    return *AA;                                                                \
  }

Definition at line 11975 of file AttributorAttributes.cpp.

◆ CREATE_VALUE_ABSTRACT_ATTRIBUTE_FOR_POSITION

#define CREATE_VALUE_ABSTRACT_ATTRIBUTE_FOR_POSITION ( CLASS )

Value:

  CLASS &CLASS::createForPosition(const IRPosition &IRP, Attributor &A) {      \
    CLASS *AA = nullptr;                                                       \
    switch (IRP.getPositionKind()) {                                           \
      SWITCH_PK_INV(CLASS, IRP_INVALID, "invalid")                             \
      SWITCH_PK_INV(CLASS, IRP_FUNCTION, "function")                           \
      SWITCH_PK_INV(CLASS, IRP_CALL_SITE, "call site")                         \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_FLOAT, Floating)                        \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_ARGUMENT, Argument)                     \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_RETURNED, Returned)                     \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_CALL_SITE_RETURNED, CallSiteReturned)   \
      SWITCH_PK_CREATE(CLASS, IRP, IRP_CALL_SITE_ARGUMENT, CallSiteArgument)   \
    }                                                                          \
    return *AA;                                                                \
  }

Definition at line 11927 of file AttributorAttributes.cpp.

◆ DEBUG_TYPE

#define DEBUG_TYPE "attributor"

Definition at line 73 of file AttributorAttributes.cpp.

◆ DefineKeys

#define DefineKeys ( ToTy )

Value:

  template <>                                                                  \
  ReachabilityQueryInfo<ToTy>                                                  \
      DenseMapInfo<ReachabilityQueryInfo<ToTy> *>::EmptyKey =                  \
          ReachabilityQueryInfo<ToTy>(                                         \
              DenseMapInfo<const Instruction *>::getEmptyKey(),                \
              DenseMapInfo<const ToTy *>::getEmptyKey());                      \
  template <>                                                                  \
  ReachabilityQueryInfo<ToTy>                                                  \
      DenseMapInfo<ReachabilityQueryInfo<ToTy> *>::TombstoneKey =              \
          ReachabilityQueryInfo<ToTy>(                                         \
              DenseMapInfo<const Instruction *>::getTombstoneKey(),            \
              DenseMapInfo<const ToTy *>::getTombstoneKey());

Definition at line 3531 of file AttributorAttributes.cpp.

◆ PIPE_OPERATOR

#define PIPE_OPERATOR ( CLASS )

Value:

  raw_ostream &operator<<(raw_ostream &OS, const CLASS &AA) {                  \
    return OS << static_cast<const AbstractAttribute &>(AA);                   \
  }

Definition at line 150 of file AttributorAttributes.cpp.

◆ STATS_DECL

#define STATS_DECL	(	NAME,
		TYPE,
		MSG
	)	STATS_DECL_(BUILD_STAT_NAME(NAME, TYPE), MSG);

Definition at line 120 of file AttributorAttributes.cpp.

◆ STATS_DECL_

#define STATS_DECL_	(	NAME,
		MSG
	)	STATISTIC(NAME, MSG);

Definition at line 119 of file AttributorAttributes.cpp.

◆ STATS_DECLTRACK

#define STATS_DECLTRACK	(	NAME,
		TYPE,
		MSG
	)

Value:

  {                                                                            \
    STATS_DECL(NAME, TYPE, MSG)                                                \
    STATS_TRACK(NAME, TYPE)                                                    \
  }

Definition at line 123 of file AttributorAttributes.cpp.

◆ STATS_DECLTRACK_ARG_ATTR

#define STATS_DECLTRACK_ARG_ATTR ( NAME ) STATS_DECLTRACK(NAME, Arguments, BUILD_STAT_MSG_IR_ATTR(arguments, NAME))

Definition at line 128 of file AttributorAttributes.cpp.

◆ STATS_DECLTRACK_CS_ATTR

#define STATS_DECLTRACK_CS_ATTR ( NAME ) STATS_DECLTRACK(NAME, CS, BUILD_STAT_MSG_IR_ATTR(call site, NAME))

Definition at line 135 of file AttributorAttributes.cpp.

◆ STATS_DECLTRACK_CSARG_ATTR

#define STATS_DECLTRACK_CSARG_ATTR ( NAME )

Value:

STATS_DECLTRACK(NAME, CSArguments, \

BUILD_STAT_MSG_IR_ATTR(call site arguments, NAME))

STATS_DECLTRACK

#define STATS_DECLTRACK(NAME, TYPE, MSG)

Definition: AttributorAttributes.cpp:123

BUILD_STAT_MSG_IR_ATTR

#define BUILD_STAT_MSG_IR_ATTR(TYPE, NAME)

Definition: AttributorAttributes.cpp:116

arguments

nvptx lower Lower arguments(NVPTX)"

Definition at line 130 of file AttributorAttributes.cpp.

◆ STATS_DECLTRACK_CSRET_ATTR

#define STATS_DECLTRACK_CSRET_ATTR ( NAME )

Value:

STATS_DECLTRACK(NAME, CSReturn, \

BUILD_STAT_MSG_IR_ATTR(call site returns, NAME))

Definition at line 140 of file AttributorAttributes.cpp.

◆ STATS_DECLTRACK_FLOATING_ATTR

#define STATS_DECLTRACK_FLOATING_ATTR ( NAME )

Value:

STATS_DECLTRACK(NAME, Floating, \

("Number of floating values known to be '" #NAME "'"))

Definition at line 143 of file AttributorAttributes.cpp.

◆ STATS_DECLTRACK_FN_ATTR

#define STATS_DECLTRACK_FN_ATTR ( NAME ) STATS_DECLTRACK(NAME, Function, BUILD_STAT_MSG_IR_ATTR(functions, NAME))

Definition at line 133 of file AttributorAttributes.cpp.

◆ STATS_DECLTRACK_FNRET_ATTR

#define STATS_DECLTRACK_FNRET_ATTR ( NAME )

Value:

STATS_DECLTRACK(NAME, FunctionReturn, \

BUILD_STAT_MSG_IR_ATTR(function returns, NAME))

function

print Print MemDeps of function

Definition: MemDepPrinter.cpp:82

Definition at line 137 of file AttributorAttributes.cpp.

◆ STATS_TRACK

#define STATS_TRACK	(	NAME,
		TYPE
	)	++(BUILD_STAT_NAME(NAME, TYPE));

Definition at line 122 of file AttributorAttributes.cpp.

◆ SWITCH_PK_CREATE

#define SWITCH_PK_CREATE	(	CLASS,
		IRP,
		PK,
		SUFFIX
	)

Value:

  case IRPosition::PK:                                                         \
    AA = new (A.Allocator) CLASS##SUFFIX(IRP, A);                              \
    ++NumAAs;                                                                  \
    break;

Definition at line 11905 of file AttributorAttributes.cpp.

◆ SWITCH_PK_INV

#define SWITCH_PK_INV	(	CLASS,
		PK,
		POS_NAME
	)

Value:

case IRPosition::PK: \

llvm_unreachable("Cannot create " #CLASS " for a " POS_NAME " position!");

Definition at line 11901 of file AttributorAttributes.cpp.

Function Documentation

◆ askForAssumedConstant()

template<typename AAType >

static std::optional< Constant * > askForAssumedConstant	(	Attributor &	A,
		const AbstractAttribute &	QueryingAA,
		const IRPosition &	IRP,
		Type &	Ty
	)

static

Definition at line 10693 of file AttributorAttributes.cpp.

References A, llvm::CallingConv::C, llvm::Type::isIntegerTy(), llvm::NONE, and llvm::OPTIONAL.

◆ clampReturnedValueStates()

template<typename AAType , typename StateType = typename AAType::StateType>

static void clampReturnedValueStates	(	Attributor &	A,
		const AAType &	QueryingAA,
		StateType &	S,
		const IRPosition::CallBaseContext *	CBContext = `nullptr`
	)

static

Clamp the information known for all returned values of a function (identified by QueryingAA) into S.

Definition at line 374 of file AttributorAttributes.cpp.

References A, assert(), llvm::dbgs(), llvm::IRPosition::IRP_CALL_SITE_RETURNED, llvm::IRPosition::IRP_RETURNED, LLVM_DEBUG, and llvm::IRPosition::value().

◆ constructPointer()

static Value * constructPointer	(	Type *	ResTy,
		Type *	PtrElemTy,
		Value *	Ptr,
		int64_t	Offset,
		IRBuilder< NoFolder > &	IRB,
		const DataLayout &	DL
	)

static

Helper function to create a pointer of type ResTy, based on Ptr, and advanced by Offset bytes.

To aid later analysis the method tries to build getelement pointer instructions that traverse the natural type of Ptr if possible. If that fails, the remaining offset is adjusted byte-wise, hence through a cast to i8*.

TODO: This could probably live somewhere more prominantly if it doesn't already exist.

Definition at line 288 of file AttributorAttributes.cpp.

References assert(), llvm::IRBuilderBase::CreateBitCast(), llvm::IRBuilderBase::CreateGEP(), llvm::IRBuilderBase::CreatePointerBitCastOrAddrSpaceCast(), llvm::dbgs(), DL, llvm::IRBuilderBase::getInt(), llvm::IRBuilderBase::getInt8PtrTy(), llvm::IRBuilderBase::getInt8Ty(), llvm::APInt::getZExtValue(), LLVM_DEBUG, llvm::Offset, Ptr, and llvm::SmallVectorTemplateBase< T, bool >::push_back().

◆ getMinimalBaseOfPointer()

static const Value * getMinimalBaseOfPointer	(	Attributor &	A,
		const AbstractAttribute &	QueryingAA,
		const Value *	Ptr,
		int64_t &	BytesOffset,
		const DataLayout &	DL,
		bool	AllowNonInbounds = `false`
	)

static

Definition at line 359 of file AttributorAttributes.cpp.

References A, llvm::sampleprof::Base, DL, llvm::APInt::getSExtValue(), Ptr, and stripAndAccumulateOffsets().

◆ getPointerOperand()

static const Value * getPointerOperand	(	const Instruction *	I,
		bool	AllowVolatile
	)

static

Get pointer operand of memory accessing instruction.

If I is not a memory accessing instruction, return nullptr. If AllowVolatile, is set to false and the instruction is volatile, return nullptr.

Definition at line 256 of file AttributorAttributes.cpp.

References I, and SI.

◆ isDenselyPacked()

static bool isDenselyPacked	(	Type *	Ty,
		const DataLayout &	DL
	)

static

Checks if a type could have padding bytes.

Definition at line 215 of file AttributorAttributes.cpp.

References DL, E, llvm::StructLayout::getElementOffsetInBits(), llvm::StructType::getElementType(), llvm::StructType::getNumElements(), I, isDenselyPacked(), and llvm::Type::isSized().

Referenced by isDenselyPacked().

◆ mayBeInCycle()

static bool mayBeInCycle	(	const CycleInfo *	CI,
		const Instruction *	I,
		bool	HeaderOnly,
		Cycle **	CPtr = `nullptr`
	)

static

Definition at line 201 of file AttributorAttributes.cpp.

References llvm::CallingConv::C, llvm::GenericCycleInfo< ContextT >::getCycle(), and I.

◆ STATISTIC()

STATISTIC	(	NumAAs	,
		"Number of abstract attributes created"
	)

◆ stripAndAccumulateOffsets()

static const Value * stripAndAccumulateOffsets	(	Attributor &	A,
		const AbstractAttribute &	QueryingAA,
		const Value *	Val,
		const DataLayout &	DL,
		APInt &	Offset,
		bool	GetMinOffset,
		bool	AllowNonInbounds,
		bool	UseAssumed = `false`
	)

static

Definition at line 327 of file AttributorAttributes.cpp.

References A, DL, llvm::IntegerRangeState::getAssumed(), llvm::IntegerRangeState::getKnown(), llvm::Offset, llvm::Value::stripAndAccumulateConstantOffsets(), and llvm::IRPosition::value().

Referenced by getMinimalBaseOfPointer().

Variable Documentation

◆ ManifestInternal

cl::opt< bool > ManifestInternal("attributor-manifest-internal", cl::Hidden, cl::desc("Manifest Attributor internal string attributes."), cl::init(false))	(	"attributor-manifest-internal"	,
		cl::Hidden	,
		cl::desc("Manifest Attributor internal string attributes.")	,
		cl::init(false)
	)

static

◆ MaxHeapToStackSize

cl::opt< int > MaxHeapToStackSize("max-heap-to-stack-size", cl::init(128), cl::Hidden)	(	"max-heap-to-stack-size"	,
		cl::init(128)	,
		cl::Hidden
	)

static

◆ MaxPotentialValues

cl::opt< unsigned, true > MaxPotentialValues("attributor-max-potential-values", cl::Hidden, cl::desc("Maximum number of potential values to be " "tracked for each position."), cl::location(llvm::PotentialConstantIntValuesState::MaxPotentialValues), cl::init(7))	(	"attributor-max-potential-values"	,
		cl::Hidden	,
		cl::desc("Maximum number of potential values to be " "tracked for each position.")	,
		cl::location(llvm::PotentialConstantIntValuesState::MaxPotentialValues)	,
		cl::init(7)
	)

static

◆ MaxPotentialValuesIterations

cl::opt< int > MaxPotentialValuesIterations("attributor-max-potential-values-iterations", cl::Hidden, cl::desc( "Maximum number of iterations we keep dismantling potential values."), cl::init(64))	(	"attributor-max-potential-values-iterations"	,
		cl::Hidden	,
		cl::desc( "Maximum number of iterations we keep dismantling potential values.")	,
		cl::init(64)
	)

static

Classes

Namespaces

Macros

Functions

Variables

Macro Definition Documentation

◆ BUILD_STAT_MSG_IR_ATTR

◆ BUILD_STAT_NAME

◆ CREATE_ALL_ABSTRACT_ATTRIBUTE_FOR_POSITION

◆ CREATE_FUNCTION_ABSTRACT_ATTRIBUTE_FOR_POSITION

◆ CREATE_FUNCTION_ONLY_ABSTRACT_ATTRIBUTE_FOR_POSITION

◆ CREATE_NON_RET_ABSTRACT_ATTRIBUTE_FOR_POSITION

◆ CREATE_VALUE_ABSTRACT_ATTRIBUTE_FOR_POSITION

◆ DEBUG_TYPE

◆ DefineKeys

◆ PIPE_OPERATOR

◆ STATS_DECL

◆ STATS_DECL_

◆ STATS_DECLTRACK

◆ STATS_DECLTRACK_ARG_ATTR

◆ STATS_DECLTRACK_CS_ATTR

◆ STATS_DECLTRACK_CSARG_ATTR

◆ STATS_DECLTRACK_CSRET_ATTR

◆ STATS_DECLTRACK_FLOATING_ATTR

◆ STATS_DECLTRACK_FN_ATTR

◆ STATS_DECLTRACK_FNRET_ATTR

◆ STATS_TRACK

◆ SWITCH_PK_CREATE

◆ SWITCH_PK_INV

Function Documentation

◆ askForAssumedConstant()

◆ clampReturnedValueStates()

◆ constructPointer()

◆ getMinimalBaseOfPointer()

◆ getPointerOperand()

◆ isDenselyPacked()

◆ mayBeInCycle()

◆ STATISTIC()

◆ stripAndAccumulateOffsets()

Variable Documentation

◆ ManifestInternal

◆ MaxHeapToStackSize

◆ MaxPotentialValues

◆ MaxPotentialValuesIterations