LLVM  14.0.0git
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AttributorAttributes.cpp File Reference
#include "llvm/Transforms/IPO/Attributor.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/SCCIterator.h"
#include "llvm/ADT/SetOperations.h"
#include "llvm/ADT/SmallPtrSet.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/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/Assumptions.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/NoFolder.h"
#include "llvm/Support/Alignment.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Transforms/IPO/ArgumentPromotion.h"
#include "llvm/Transforms/Utils/Local.h"
#include <cassert>
Include dependency graph for AttributorAttributes.cpp:

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Classes

struct  llvm::DenseMapInfo< AAPointerInfo::Access >
 Helper for AA::PointerInfo::Acccess DenseMap/Set usage. More...
 
struct  llvm::DenseMapInfo< AA::PointerInfo ::OffsetAndSize >
 Helper that allows OffsetAndSize as a key in a DenseMap. More...
 
struct  llvm::AccessAsInstructionInfo
 Helper for AA::PointerInfo::Acccess DenseMap/Set usage ignoring everythign but the instruction. More...
 
struct  llvm::AA::PointerInfo::OffsetAndSize
 Helper to represent an access offset and size, with logic to deal with uncertainty and check for overlapping accesses. More...
 
struct  llvm::AA::PointerInfo::State
 } More...
 

Namespaces

 llvm
 This is an optimization pass for GlobalISel generic memory operations.
 
 llvm::AA
 Abstract Attribute helper functions.
 
 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 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 const ValuegetPointerOperand (const Instruction *I, bool AllowVolatile)
 Get pointer operand of memory accessing instruction. More...
 
static ValueconstructPointer (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. More...
 
template<typename StateTy >
static bool genericValueTraversal (Attributor &A, IRPosition IRP, const AbstractAttribute &QueryingAA, StateTy &State, function_ref< bool(Value &, const Instruction *, StateTy &, bool)> VisitValueCB, const Instruction *CtxI, bool UseValueSimplify=true, int MaxValues=16, function_ref< Value *(Value *)> StripCB=nullptr)
 Recursively visit all values that might become IRP at some point. More...
 
const ValuestripAndAccumulateMinimalOffsets (Attributor &A, const AbstractAttribute &QueryingAA, const Value *Val, const DataLayout &DL, APInt &Offset, bool AllowNonInbounds, bool UseAssumed=false)
 
static const ValuegetMinimalBaseOfAccsesPointerOperand (Attributor &A, const AbstractAttribute &QueryingAA, const Instruction *I, int64_t &BytesOffset, const DataLayout &DL, bool AllowNonInbounds=false)
 
static const ValuegetBasePointerOfAccessPointerOperand (const Instruction *I, 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. More...
 
template<class AAType , typename StateType = typename AAType::StateType>
static void followUsesInContext (AAType &AA, Attributor &A, MustBeExecutedContextExplorer &Explorer, const Instruction *CtxI, SetVector< const Use * > &Uses, StateType &State)
 Helper function to accumulate uses. More...
 
template<class AAType , typename StateType = typename AAType::StateType>
static void followUsesInMBEC (AAType &AA, Attributor &A, StateType &S, Instruction &CtxI)
 Use the must-be-executed-context around I to add information into S. More...
 

Variables

static cl::opt< bool > ManifestInternal ("attributor-manifest-internal", cl::Hidden, cl::desc("Manifest Attributor internal string attributes."), cl::init(false))
 
static cl::opt< intMaxHeapToStackSize ("max-heap-to-stack-size", cl::init(128), cl::Hidden)
 
static cl::opt< unsigned, trueMaxPotentialValues ("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))
 

Macro Definition Documentation

◆ BUILD_STAT_MSG_IR_ATTR

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

Definition at line 86 of file AttributorAttributes.cpp.

◆ BUILD_STAT_NAME

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

Definition at line 88 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 9862 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 9830 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 9878 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 9894 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 9846 of file AttributorAttributes.cpp.

◆ DEBUG_TYPE

#define DEBUG_TYPE   "attributor"

Definition at line 51 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 120 of file AttributorAttributes.cpp.

◆ STATS_DECL

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

Definition at line 90 of file AttributorAttributes.cpp.

◆ STATS_DECL_

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

Definition at line 89 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 93 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 98 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 105 of file AttributorAttributes.cpp.

◆ STATS_DECLTRACK_CSARG_ATTR

#define STATS_DECLTRACK_CSARG_ATTR (   NAME)
Value:
STATS_DECLTRACK(NAME, CSArguments, \

Definition at line 100 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 110 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 113 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 103 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))

Definition at line 107 of file AttributorAttributes.cpp.

◆ STATS_TRACK

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

Definition at line 92 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 9824 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 9820 of file AttributorAttributes.cpp.

Function Documentation

◆ 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 449 of file AttributorAttributes.cpp.

References assert(), llvm::dbgs(), llvm::IRPosition::IRP_CALL_SITE_RETURNED, llvm::IRPosition::IRP_RETURNED, LLVM_DEBUG, llvm::REQUIRED, S, 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 201 of file AttributorAttributes.cpp.

References assert(), llvm::IRBuilderBase::CreateBitCast(), llvm::IRBuilderBase::CreateBitOrPointerCast(), llvm::IRBuilderBase::CreateGEP(), llvm::dbgs(), DL, llvm::IRBuilderBase::getInt(), llvm::IRBuilderBase::getInt8PtrTy(), llvm::IRBuilderBase::getInt8Ty(), llvm::Value::getName(), llvm::Value::getType(), llvm::APInt::getZExtValue(), Index, LLVM_DEBUG, Offset, llvm::StringRef::str(), and llvm::to_string().

◆ followUsesInContext()

template<class AAType , typename StateType = typename AAType::StateType>
static void followUsesInContext ( AAType &  AA,
Attributor A,
MustBeExecutedContextExplorer Explorer,
const Instruction CtxI,
SetVector< const Use * > &  Uses,
StateType &  State 
)
static

◆ followUsesInMBEC()

template<class AAType , typename StateType = typename AAType::StateType>
static void followUsesInMBEC ( AAType &  AA,
Attributor A,
StateType &  S,
Instruction CtxI 
)
static

Use the must-be-executed-context around I to add information into S.

The AAType class is required to have followUseInMBEC method with the following signature and behaviour:

bool followUseInMBEC(Attributor &A, const Use *U, const Instruction *I) U - Underlying use. I - The user of the U. Returns true if the value should be tracked transitively.

Definition at line 679 of file AttributorAttributes.cpp.

References BB, llvm::MustBeExecutedContextExplorer::checkForAllContext(), followUsesInContext(), I, S, and Uses.

◆ genericValueTraversal()

template<typename StateTy >
static bool genericValueTraversal ( Attributor A,
IRPosition  IRP,
const AbstractAttribute QueryingAA,
StateTy State,
function_ref< bool(Value &, const Instruction *, StateTy &, bool)>  VisitValueCB,
const Instruction CtxI,
bool  UseValueSimplify = true,
int  MaxValues = 16,
function_ref< Value *(Value *)>  StripCB = nullptr 
)
static

Recursively visit all values that might become IRP at some point.

This will be done by looking through cast instructions, selects, phis, and calls with the "returned" attribute. Once we cannot look through the value any further, the callback VisitValueCB is invoked and passed the current value, the State, and a flag to indicate if we stripped anything. Stripped means that we unpacked the value associated with IRP at least once. Note that the value used for the callback may still be the value associated with IRP (due to PHIs). To limit how much effort is invested, we will never visit more values than specified by MaxValues.

Definition at line 248 of file AttributorAttributes.cpp.

References Arg, assert(), llvm::numbers::e, llvm::IRPosition::function(), llvm::IRPosition::getAnchorScope(), llvm::IRPosition::getAssociatedValue(), llvm::IRPosition::getCallBaseContext(), llvm::BasicBlock::getTerminator(), llvm::Value::getType(), llvm::Optional< T >::getValue(), llvm::Optional< T >::hasValue(), I, llvm::SmallSet< T, N, C >::insert(), llvm::Type::isPointerTy(), llvm::NONE, llvm::OPTIONAL, llvm::SmallVectorImpl< T >::pop_back_val(), SI, and llvm::Value::stripPointerCasts().

Referenced by llvm::AA::getAssumedUnderlyingObjects().

◆ getBasePointerOfAccessPointerOperand()

static const Value* getBasePointerOfAccessPointerOperand ( const Instruction I,
int64_t &  BytesOffset,
const DataLayout DL,
bool  AllowNonInbounds = false 
)
static

◆ getMinimalBaseOfAccsesPointerOperand()

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

◆ 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 169 of file AttributorAttributes.cpp.

References I, and SI.

◆ STATISTIC()

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

◆ stripAndAccumulateMinimalOffsets()

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

Variable Documentation

◆ ManifestInternal

cl::opt<bool> ManifestInternal("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)
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))
static
llvm::Argument
This class represents an incoming formal argument to a Function.
Definition: Argument.h:29
llvm::Function
Definition: Function.h:62
BUILD_STAT_MSG_IR_ATTR
#define BUILD_STAT_MSG_IR_ATTR(TYPE, NAME)
Definition: AttributorAttributes.cpp:86
llvm::IRPosition::getPositionKind
Kind getPositionKind() const
Return the associated position kind.
Definition: Attributor.h:536
llvm::raw_ostream
This class implements an extremely fast bulk output stream that can only output to a stream.
Definition: raw_ostream.h:53
llvm::operator<<
raw_ostream & operator<<(raw_ostream &OS, const APFixedPoint &FX)
Definition: APFixedPoint.h:230
call
S is passed via registers r2 But gcc stores them to the and then reload them to and r3 before issuing the call(r0 contains the address of the format string)
Definition: README.txt:190
llvm::IRPosition
Helper to describe and deal with positions in the LLVM-IR.
Definition: Attributor.h:304
STATS_DECLTRACK
#define STATS_DECLTRACK(NAME, TYPE, MSG)
Definition: AttributorAttributes.cpp:93
A
* A
Definition: README_ALTIVEC.txt:89
llvm::Attributor
The fixpoint analysis framework that orchestrates the attribute deduction.
Definition: Attributor.h:1140
arguments
we compile this esp call L1 $pb L1 esp je LBB1_2 esp ret but is currently always computed in the entry block It would be better to sink the picbase computation down into the block for the as it is the only one that uses it This happens for a lot of code with early outs Another example is loads of arguments
Definition: README.txt:425