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apply_specialization currently creates and retains a Salsa query for every input type, including atomic types whose specialization always returns the original type.
This change handles those specialization-invariant variants before entering the tracked query. Types that can contain type variables continue through the existing tracked implementation, preserving specialization and cycle behavior.
On a large codebase, this reduced retained memory by 1.06% without a measurable runtime regression.
Current numbers
The percentage of diagnostics emitted that were expected errors held steady at 92.13%. The percentage of expected errors that received a diagnostic held steady at 87.18%. The number of fully passing files held steady at 92/134.
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Summary
apply_specializationcurrently creates and retains a Salsa query for every input type, including atomic types whose specialization always returns the original type.This change handles those specialization-invariant variants before entering the tracked query. Types that can contain type variables continue through the existing tracked implementation, preserving specialization and cycle behavior.
On a large codebase, this reduced retained memory by 1.06% without a measurable runtime regression.