Struct PgoPass 

pub struct PgoPass {
    pub config: PgoConfig,
    pub profile: ProfileData,
}

The profile-guided optimisation pass.

Consumes a ProfileData snapshot and a PgoConfig, then answers per-site queries such as “should I inline this callee?” and produces a bulk OptAction recommendation list via PgoPass::optimize_call_sites.

Fields

config: PgoConfig

profile: ProfileData

Implementations

impl PgoPass

pub fn new(config: PgoConfig) -> Self

Create a new PgoPass with the given configuration and an empty profile.

pub fn load_profile(&mut self, data: ProfileData)

Replace the current profile with data.

pub fn should_inline(&self, func_name: &str, size_estimate: usize) -> bool

Return true when func_name should be inlined at a call site whose callee has an estimated IR size of size_estimate nodes.

Inlining is enabled when:

• config.inline_hot is set, AND
• func_name is hot (exceeds the threshold), AND
• size_estimate <= config.max_inline_size.

pub fn should_specialize(&self, func_name: &str) -> bool

Return true when a specialised clone of func_name should be generated.

Specialisation is enabled when:

• config.specialize_hot is set, AND
• func_name is hot.

pub fn optimize_call_sites( &self, functions: &[(String, usize)], ) -> Vec<OptAction>

Produce a list of OptAction recommendations for a collection of (function_name, size_estimate) pairs representing call sites.

The index of each entry in functions is used as the call_site discriminant for Specialize actions.