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Title: GH-100982: Restrict `FOR_ITER_RANGE` to a single instruction to allow instrumentation. by markshannon · Pull Request #101985 · python/cpython · GitHub

Open Graph Title: GH-100982: Restrict `FOR_ITER_RANGE` to a single instruction to allow instrumentation. by markshannon · Pull Request #101985 · python/cpython

X Title: GH-100982: Restrict `FOR_ITER_RANGE` to a single instruction to allow instrumentation. by markshannon · Pull Request #101985 · python/cpython

Description: Currently FOR_ITER_RANGE is a superinstruction, specializing a FOR_ITER; STORE_FAST pair. This is a problem for instrumentation which assumes the PEP 659 promise that all specializations are atomic. This PR restricts FOR_ITER_RANGE to a single instruction. Issue: gh-100982

Open Graph Description: Currently FOR_ITER_RANGE is a superinstruction, specializing a FOR_ITER; STORE_FAST pair. This is a problem for instrumentation which assumes the PEP 659 promise that all specializations are atomic...

X Description: Currently FOR_ITER_RANGE is a superinstruction, specializing a FOR_ITER; STORE_FAST pair. This is a problem for instrumentation which assumes the PEP 659 promise that all specializations are atomic...

Opengraph URL: https://github.com/python/cpython/pull/101985

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fb5f321 Restrict FOR_ITER_RANGE to a single instruction to allow instrumentat… markshannon Feb 17, 2023 https://github.com/python/cpython/pull/101985/commits/fb5f3213b306b60c2f741baa55a4dfab6bd9d8b6
46593a5 Merge branch 'main' into restrict-for-iter-specializations-to-one-ins… markshannon Feb 20, 2023 https://github.com/python/cpython/pull/101985/commits/46593a52af58e37dd6401d9d1f97e9c8252fe813
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