Struct ChunkTiers 

pub struct ChunkTiers {
    pub name: String,
    pub ops: usize,
    pub block_eligible: bool,
    pub block_compiled: bool,
    pub largest_eligible_region: Option<(usize, usize)>,
    pub loops: Vec<Loop>,
    pub ineligible: BTreeMap<String, usize>,
}

What the tiers did with one chunk.

Fields

name: String

Which chunk this is — main for a whole JavaScript program.

ops: usize

Ops in the compiled chunk.

block_eligible: bool

Whether every op in the chunk is block-JIT eligible, which is what the whole-chunk block tier requires.

block_compiled: bool

Whether the block tier holds compiled native code for this chunk.

largest_eligible_region: Option<(usize, usize)>

The largest contiguous block-eligible op range, if any is large enough for fusevm to consider it worth compiling.

loops: Vec<Loop>

Every loop header, and whether the tracing JIT compiled it.

ineligible: BTreeMap<String, usize>

Op kinds the block tier refuses, by occurrence count — what keeps the whole chunk from being compiled in one piece.

Not the same question as whether a loop is traced: the tracing tier takes GetVar / SetVar (fusevm promotes a referenced global to a register at trace entry and spills it at every exit), so a chunk can list those here and still reach native code through a trace.

Implementations

impl ChunkTiers

pub fn reaches_native(&self) -> bool

Whether any tier holds compiled native code for this chunk.

Trait Implementations

impl Clone for ChunkTiers

fn clone(&self) -> ChunkTiers

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ChunkTiers

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

Formats the value using the given formatter.

impl Display for ChunkTiers

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

Formats the value using the given formatter.

impl Eq for ChunkTiers

impl PartialEq for ChunkTiers

fn eq(&self, other: &ChunkTiers) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ChunkTiers