LLVM  6.0.0svn
Public Member Functions | Static Public Member Functions | List of all members
llvm::InjectorIRStrategy Class Reference

Strategy that injects operations into the function. More...

#include "llvm/FuzzMutate/IRMutator.h"

Inheritance diagram for llvm::InjectorIRStrategy:
Inheritance graph
[legend]
Collaboration diagram for llvm::InjectorIRStrategy:
Collaboration graph
[legend]

Public Member Functions

 InjectorIRStrategy (std::vector< fuzzerop::OpDescriptor > &&Operations)
 
uint64_t getWeight (size_t CurrentSize, size_t MaxSize, uint64_t CurrentWeight) override
 Provide a weight to bias towards choosing this strategy for a mutation. More...
 
void mutate (Function &F, RandomIRBuilder &IB) override
 
void mutate (BasicBlock &BB, RandomIRBuilder &IB) override
 
- Public Member Functions inherited from llvm::IRMutationStrategy
virtual ~IRMutationStrategy ()=default
 
virtual void mutate (Module &M, RandomIRBuilder &IB)
 
virtual void mutate (Instruction &I, RandomIRBuilder &IB)
 

Static Public Member Functions

static std::vector< fuzzerop::OpDescriptorgetDefaultOps ()
 

Detailed Description

Strategy that injects operations into the function.

Definition at line 74 of file IRMutator.h.

Constructor & Destructor Documentation

◆ InjectorIRStrategy()

llvm::InjectorIRStrategy::InjectorIRStrategy ( std::vector< fuzzerop::OpDescriptor > &&  Operations)
inline

Definition at line 80 of file IRMutator.h.

Member Function Documentation

◆ getDefaultOps()

std::vector< fuzzerop::OpDescriptor > InjectorIRStrategy::getDefaultOps ( )
static

◆ getWeight()

uint64_t llvm::InjectorIRStrategy::getWeight ( size_t  CurrentSize,
size_t  MaxSize,
uint64_t  CurrentWeight 
)
inlineoverridevirtual

Provide a weight to bias towards choosing this strategy for a mutation.

The value of the weight is arbitrary, but a good default is "the number of distinct ways in which this strategy can mutate a unit". This can also be used to prefer strategies that shrink the overall size of the result when we start getting close to MaxSize.

Implements llvm::IRMutationStrategy.

Definition at line 84 of file IRMutator.h.

References F(), and llvm::IRMutationStrategy::mutate().

◆ mutate() [1/2]

void InjectorIRStrategy::mutate ( Function F,
RandomIRBuilder IB 
)
overridevirtual

Reimplemented from llvm::IRMutationStrategy.

Definition at line 77 of file IRMutator.cpp.

References eliminateDeadCode(), and llvm::IRMutationStrategy::mutate().

◆ mutate() [2/2]

void InjectorIRStrategy::mutate ( BasicBlock BB,
RandomIRBuilder IB 
)
overridevirtual

The documentation for this class was generated from the following files: