llvm::fuzzerop Namespace Reference

Classes
struct	OpDescriptor
	A description of some operation we can build while fuzzing IR. More...
class	SourcePred
	A matcher/generator for finding suitable values for the next source in an operation's partially completed argument list. More...

Functions
static SourcePred	onlyType (Type *Only)
static SourcePred	anyType ()
static SourcePred	anyIntType ()
static SourcePred	anyFloatType ()
static SourcePred	anyPtrType ()
static SourcePred	sizedPtrType ()
static SourcePred	anyAggregateType ()
static SourcePred	anyVectorType ()
static SourcePred	matchFirstType ()
	Match values that have the same type as the first source. More...
static SourcePred	matchScalarOfFirstType ()
	Match values that have the first source's scalar type. More...
void	makeConstantsWithType (Type *T, std::vector< Constant *> &Cs)
std::vector< Constant * >	makeConstantsWithType (Type *T)
OpDescriptor	binOpDescriptor (unsigned Weight, Instruction::BinaryOps Op)
	Descriptors for individual operations. More...
OpDescriptor	cmpOpDescriptor (unsigned Weight, Instruction::OtherOps CmpOp, CmpInst::Predicate Pred)
OpDescriptor	splitBlockDescriptor (unsigned Weight)
OpDescriptor	gepDescriptor (unsigned Weight)
OpDescriptor	extractValueDescriptor (unsigned Weight)
OpDescriptor	insertValueDescriptor (unsigned Weight)
OpDescriptor	extractElementDescriptor (unsigned Weight)
OpDescriptor	insertElementDescriptor (unsigned Weight)
OpDescriptor	shuffleVectorDescriptor (unsigned Weight)

Function Documentation

anyAggregateType()

static SourcePred llvm::fuzzerop::anyAggregateType ( )

inlinestatic

Definition at line 165 of file OpDescriptor.h.

References Find(), and llvm::None.

Referenced by extractValueDescriptor(), and insertValueDescriptor().

anyFloatType()

static SourcePred llvm::fuzzerop::anyFloatType ( )

inlinestatic

Definition at line 122 of file OpDescriptor.h.

References llvm::None.

Referenced by binOpDescriptor(), and cmpOpDescriptor().

anyIntType()

static SourcePred llvm::fuzzerop::anyIntType ( )

inlinestatic

Definition at line 114 of file OpDescriptor.h.

References llvm::None.

Referenced by binOpDescriptor(), cmpOpDescriptor(), extractElementDescriptor(), gepDescriptor(), and insertElementDescriptor().

anyPtrType()

static SourcePred llvm::fuzzerop::anyPtrType ( )

inlinestatic

Definition at line 130 of file OpDescriptor.h.

References llvm::UndefValue::get(), and llvm::PointerType::getUnqual().

anyType()

static SourcePred llvm::fuzzerop::anyType ( )

inlinestatic

Definition at line 106 of file OpDescriptor.h.

References llvm::None.

Referenced by llvm::RandomIRBuilder::findOrCreateSource().

anyVectorType()

static SourcePred llvm::fuzzerop::anyVectorType ( )

inlinestatic

Definition at line 183 of file OpDescriptor.h.

References llvm::None.

Referenced by extractElementDescriptor(), insertElementDescriptor(), and shuffleVectorDescriptor().

binOpDescriptor()

OpDescriptor llvm::fuzzerop::binOpDescriptor	(	unsigned	Weight,
		Instruction::BinaryOps	Op
	)

Descriptors for individual operations.

Definition at line 92 of file Operations.cpp.

References llvm::MCID::Add, anyFloatType(), anyIntType(), llvm::BinaryOperator::Create(), llvm_unreachable, and matchFirstType().

Referenced by llvm::describeFuzzerFloatOps(), and llvm::describeFuzzerIntOps().

cmpOpDescriptor()

OpDescriptor llvm::fuzzerop::cmpOpDescriptor	(	unsigned	Weight,
		Instruction::OtherOps	CmpOp,
		CmpInst::Predicate	Pred
	)

Definition at line 124 of file Operations.cpp.

References anyFloatType(), anyIntType(), llvm::CmpInst::Create(), llvm_unreachable, and matchFirstType().

Referenced by llvm::describeFuzzerFloatOps(), and llvm::describeFuzzerIntOps().

extractElementDescriptor()

OpDescriptor llvm::fuzzerop::extractElementDescriptor

(

unsigned

Weight

)

Definition at line 279 of file Operations.cpp.

References anyIntType(), anyVectorType(), and llvm::ExtractElementInst::Create().

Referenced by llvm::describeFuzzerVectorOps().

extractValueDescriptor()

OpDescriptor llvm::fuzzerop::extractValueDescriptor

(

unsigned

Weight

)

Definition at line 212 of file Operations.cpp.

References anyAggregateType(), llvm::ExtractValueInst::Create(), and validExtractValueIndex().

Referenced by llvm::describeFuzzerAggregateOps().

gepDescriptor()

OpDescriptor llvm::fuzzerop::gepDescriptor

(

unsigned

Weight

)

Definition at line 171 of file Operations.cpp.

References anyIntType(), buildGEP(), llvm::GetElementPtrInst::Create(), llvm::makeArrayRef(), and sizedPtrType().

Referenced by llvm::describeFuzzerPointerOps().

insertElementDescriptor()

OpDescriptor llvm::fuzzerop::insertElementDescriptor

(

unsigned

Weight

)

Definition at line 287 of file Operations.cpp.

References anyIntType(), anyVectorType(), llvm::InsertElementInst::Create(), and matchScalarOfFirstType().

Referenced by llvm::describeFuzzerVectorOps().

insertValueDescriptor()

OpDescriptor llvm::fuzzerop::insertValueDescriptor

(

unsigned

Weight

)

Definition at line 267 of file Operations.cpp.

References anyAggregateType(), llvm::InsertValueInst::Create(), matchScalarInAggregate(), and validInsertValueIndex().

Referenced by llvm::describeFuzzerAggregateOps().

makeConstantsWithType() [1/2]

void llvm::fuzzerop::makeConstantsWithType	(	Type *	T,
		std::vector< Constant *> &	Cs
	)

Populate a small list of potentially interesting constants of a given type.

Definition at line 16 of file OpDescriptor.cpp.

References llvm::ConstantInt::get(), llvm::ConstantFP::get(), llvm::UndefValue::get(), llvm::Type::getContext(), llvm::Type::getFltSemantics(), llvm::APFloat::getLargest(), llvm::APInt::getMaxValue(), llvm::APInt::getMinValue(), llvm::APInt::getOneBitSet(), llvm::APInt::getSignedMaxValue(), llvm::APInt::getSignedMinValue(), llvm::APFloat::getSmallest(), llvm::APFloat::getZero(), llvm::Type::isFloatingPointTy(), and llvm::RISCVFenceField::W.

Referenced by makeConstantsWithType(), matchFirstType(), matchScalarInAggregate(), matchScalarOfFirstType(), onlyType(), and llvm::fuzzerop::SourcePred::SourcePred().

makeConstantsWithType() [2/2]

std::vector< Constant * > llvm::fuzzerop::makeConstantsWithType

(

Type *

T

)

Definition at line 34 of file OpDescriptor.cpp.

References makeConstantsWithType().

matchFirstType()

static SourcePred llvm::fuzzerop::matchFirstType ( )

inlinestatic

Match values that have the same type as the first source.

Definition at line 195 of file OpDescriptor.h.

References assert(), llvm::ArrayRef< T >::empty(), getType(), and makeConstantsWithType().

Referenced by binOpDescriptor(), cmpOpDescriptor(), llvm::RandomIRBuilder::newSink(), and shuffleVectorDescriptor().

matchScalarOfFirstType()

static SourcePred llvm::fuzzerop::matchScalarOfFirstType ( )

inlinestatic

Match values that have the first source's scalar type.

Definition at line 208 of file OpDescriptor.h.

References assert(), llvm::ArrayRef< T >::empty(), getType(), and makeConstantsWithType().

Referenced by insertElementDescriptor().

onlyType()

static SourcePred llvm::fuzzerop::onlyType ( Type *  Only )

inlinestatic

Definition at line 96 of file OpDescriptor.h.

References makeConstantsWithType().

Referenced by llvm::InstDeleterIRStrategy::mutate().

shuffleVectorDescriptor()

OpDescriptor llvm::fuzzerop::shuffleVectorDescriptor

(

unsigned

Weight

)

Definition at line 312 of file Operations.cpp.

References anyVectorType(), matchFirstType(), and validShuffleVectorIndex().

Referenced by llvm::describeFuzzerVectorOps().

sizedPtrType()

static SourcePred llvm::fuzzerop::sizedPtrType ( )

inlinestatic

Definition at line 144 of file OpDescriptor.h.

References llvm::UndefValue::get(), llvm::PointerType::getUnqual(), and llvm::Type::isSized().

Referenced by gepDescriptor().

splitBlockDescriptor()

OpDescriptor llvm::fuzzerop::splitBlockDescriptor

(

unsigned

Weight

)

Definition at line 141 of file Operations.cpp.

References llvm::BranchInst::Create(), llvm::Instruction::eraseFromParent(), llvm::UndefValue::get(), llvm::Function::getEntryBlock(), llvm::BasicBlock::getParent(), llvm::BasicBlock::getTerminator(), llvm::BasicBlock::isEHPad(), llvm::None, llvm::BasicBlock::phis(), and llvm::BasicBlock::splitBasicBlock().

Referenced by llvm::describeFuzzerControlFlowOps().