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JIT optimize dict access with consts with known hash #146558

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interpreter-coreperformancetopic-JITtype-feature

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on Mar 28, 2026

Currently the JIT does not optimizes dict accesses with ints, strs and other objects whose hash can be pre-computed. The JIT can take advantage of pre-computed hashes to speed up dict lookups.

See the PR for more details.

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gh-146558: optimize dict access with objects with known hash #146559

kumaraditya303
added
performancePerformance or resource usage

topic-JIT
on Mar 28, 2026
picnixz
added
interpreter-core(Objects, Python, Grammar, and Parser dirs)

type-featureA feature request or enhancement
on Mar 28, 2026
kumaraditya303
closed this as completed on Mar 30, 2026
kumaraditya303
added a commit that references this issue on Mar 30, 2026
gh-146558: JIT optimize dict access for objects with known hash (#146559
8e9d21c
maurycy
added a commit that references this issue on Mar 30, 2026
Merge remote-tracking branch 'upstream/main' into tachyon-ndjson-kole…
6a0ea81
clin1234
added a commit that references this issue on Apr 16, 2026
pythongh-146558: JIT optimize dict access for objects with known hash (…
96c37e7
ljfp
added a commit that references this issue on Apr 25, 2026
pythongh-146558: JIT optimize dict access for objects with known hash (…
c8eb289

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