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LoopLocalSummary

rapx::verify::loop_sensitivity

Struct LoopLocalSummary 

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struct LoopLocalSummary {
    assigned_inside: FxHashSet<Local>,
    state_locals: FxHashSet<Local>,
}
Expand description

Local assignment and transfer summary for one loop SCC.

The planner uses this for two related questions:

  • Did a sink dependency get redefined inside this SCC?
  • If so, how many loop-carried state locals are on the dependency path from the sink back to an earlier source?

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§assigned_inside: FxHashSet<Local>

Locals directly assigned inside the SCC.

§state_locals: FxHashSet<Local>

Locals that have both an incoming value and an SCC update.

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impl LoopLocalSummary

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fn new(body: &Body<'_>, component: &LoopComponent) -> Self

Build local assignment sets for component.

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