Enum TierMode 

pub enum TierMode {
    Tiered,
    Eager,
    Baseline,
}

WHEN each allowed optimization runs, as opposed to WHICH are allowed (OptimizationConfig). The sibling policy of HOTSWAP §8: the bitset says what is permitted; this says at what hotness tier each permitted opt is paid for. Kept separate from OptimizationConfig (which is serialized / merged per-function / normalized) so tier state never pollutes the “which opts” bitset.

Variants

Tiered

Units climb T0→T3 by hotness — the default.

Eager

Everything optimized upfront at T3 — today’s behavior, the A/B baseline.

Baseline

Never optimize — every unit pinned at T0.

Trait Implementations

impl Clone for TierMode

fn clone(&self) -> TierMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TierMode

impl Debug for TierMode

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

Formats the value using the given formatter.

impl Eq for TierMode

impl PartialEq for TierMode

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TierMode