Struct peepmatic_runtime::optimizer::PeepholeOptimizer

pub struct PeepholeOptimizer<'peep, 'ctx, I> where
    I: InstructionSet<'ctx>,  { /* fields omitted */ }

A peephole optimizer instance that can apply a set of peephole optimizations to instructions.

These are created from a set of peephole optimizations with the [PeepholeOptimizer::instance][crate::PeepholeOptimizer::instance] method.

Reusing an instance when applying peephole optimizations to different instruction sequences means that you reuse internal allocations that are used to match left-hand sides and build up right-hand sides.

Implementations

impl<'peep, 'ctx, I> PeepholeOptimizer<'peep, 'ctx, I> where
    I: InstructionSet<'ctx>, 

pub fn apply_one(
    &mut self,
    context: &mut I::Context,
    root: I::Instruction
) -> Option<I::Instruction>

Attempt to apply a single peephole optimization to the given root instruction.

If an optimization is applied, then the root is replaced with the optimization's right-hand side, and the root of the right-hand side is returned as Some.

If no optimization's left-hand side matches root, then root is left untouched and None is returned.

pub fn apply_all(&mut self, context: &mut I::Context, inst: I::Instruction)

Keep applying peephole optimizations to the given instruction until none can be applied anymore.

Trait Implementations

impl<'peep, 'ctx, I> Debug for PeepholeOptimizer<'peep, 'ctx, I> where
    I: InstructionSet<'ctx>, 

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.