Optimize Date operations and object resolution#2288

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lahma merged 8 commits into

sebastienros:mainfrom

lahma:stopwatch-perf

Mar 1, 2026

Commits on Mar 1, 2026

perf: optimize Date operations and object resolution for ~10-13% stopwatch benchmark improvement

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add fast paths
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perf: fast-path simple member reads in JintMemberExpression

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perf: fast-path base ScriptFunction construction when prototype descriptor is data

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perf: cache direct identifier environment resolution in JintIdentifierExpression

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perf: add monomorphic own-property inline cache for stable member reads

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perf: lower HybridDictionary cutover for small objects

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fix: restore Test262 semantics after perf optimizations

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