opt

Documentation

Index

• func DeadCodeElimination(function *gen.FunctionInfo) core.ResultList
• func FileToDeadCodeElimination(file *gen.FileInfo) core.ResultList
• func TransformFileToDeadCodeElimination(data *transform.TargetData) (*transform.TargetData, core.ResultList)
• type CriticalInstruction
  • func (CriticalInstruction) IsCritical(*gen.InstructionInfo) bool
• type DCESupportedInstruction
• type DefinesNothingInstruction
  • func (DefinesNothingInstruction) Defines(*gen.InstructionInfo) []*gen.RegisterInfo
• type DefinesTargetsInstruction
  • func (DefinesTargetsInstruction) Defines(info *gen.InstructionInfo) []*gen.RegisterInfo
• type NonCriticalInstruction
  • func (NonCriticalInstruction) IsCritical(*gen.InstructionInfo) bool
• type UsesArgumentsInstruction
  • func (UsesArgumentsInstruction) Uses(info *gen.InstructionInfo) []*gen.RegisterInfo
• type UsesNothingInstruction
  • func (UsesNothingInstruction) Uses(*gen.InstructionInfo) []*gen.RegisterInfo

Functions

func DeadCodeElimination

func DeadCodeElimination(function *gen.FunctionInfo) core.ResultList

func FileToDeadCodeElimination

func FileToDeadCodeElimination(file *gen.FileInfo) core.ResultList

func TransformFileToDeadCodeElimination

func TransformFileToDeadCodeElimination(
	data *transform.TargetData,
) (*transform.TargetData, core.ResultList)

Types

type CriticalInstruction

type CriticalInstruction struct{}

func (CriticalInstruction) IsCritical

func (CriticalInstruction) IsCritical(*gen.InstructionInfo) bool

type DCESupportedInstruction

type DCESupportedInstruction interface {
	gen.InstructionDefinition

	// Returns true if the instruction is a critical instruction, which means
	// it can't be removed by the dead code elimination process, by definition.
	//
	// A critical instruction might be a function call, a branch, an instruction
	// with a side effect, etc.
	IsCritical(info *gen.InstructionInfo) bool

	// Returns the registers that the instruction defines, directly or indirectly.
	Defines(info *gen.InstructionInfo) []*gen.RegisterInfo

	// Returns the registers that the instruction uses, directly or indirectly.
	Uses(info *gen.InstructionInfo) []*gen.RegisterInfo
}

type DefinesNothingInstruction

type DefinesNothingInstruction struct{}

func (DefinesNothingInstruction) Defines

func (DefinesNothingInstruction) Defines(*gen.InstructionInfo) []*gen.RegisterInfo

type DefinesTargetsInstruction

type DefinesTargetsInstruction struct{}

func (DefinesTargetsInstruction) Defines

func (DefinesTargetsInstruction) Defines(info *gen.InstructionInfo) []*gen.RegisterInfo

type NonCriticalInstruction

type NonCriticalInstruction struct{}

func (NonCriticalInstruction) IsCritical

func (NonCriticalInstruction) IsCritical(*gen.InstructionInfo) bool

type UsesArgumentsInstruction

type UsesArgumentsInstruction struct{}

func (UsesArgumentsInstruction) Uses

func (UsesArgumentsInstruction) Uses(info *gen.InstructionInfo) []*gen.RegisterInfo

type UsesNothingInstruction

type UsesNothingInstruction struct{}

func (UsesNothingInstruction) Uses

func (UsesNothingInstruction) Uses(*gen.InstructionInfo) []*gen.RegisterInfo