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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...

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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Specialization of some instructions does not conform to PEP 659, and prevents PEP 669 #100982https://github.com/python/cpython/issues/100982
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