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GeezerVison is showing github.com — Constant evaluate/propagate pure ops automatically · Issue #132732 · python/cpython Closed Assignees Labels interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)topic-JITtype-featureA feature request or enhancementA feature request or enhancement DescriptionFeature or enhancementProposal:@brandtbucher pointed out that we could automatically evaluate pure ops in the JIT. Back when I originally envisioned this in the JIT optimizer, it was way simpler. Right now we have stackrefs which complicate things a little. The main idea is that fully pure bytecodes can just run their body in the JIT optimizer, allowing for automatic constant prop/evaluation. This also cuts down code duplication and also the amount of human error from manually writing constant propagation code. We'd have to replace all the stackref functions with the appropriate sym accessing functions, either through macros or the cases generator. Has this already been discussed elsewhere?No response given Links to previous discussion of this feature:No response Linked PRs
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