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Title: GH-123040: Specialize shadowed `LOAD_ATTR`. by markshannon · Pull Request #123219 · python/cpython · GitHub

Open Graph Title: GH-123040: Specialize shadowed `LOAD_ATTR`. by markshannon · Pull Request #123219 · python/cpython

X Title: GH-123040: Specialize shadowed `LOAD_ATTR`. by markshannon · Pull Request #123219 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

Open Graph Description: This PR specializes LOAD_ATTR for shadowed attributes, where the shadowing doesn't change the attribute. Stats show a 30% reduction in specialization failures for LOAD_ATTR. Performance might s...

X Description: This PR specializes LOAD_ATTR for shadowed attributes, where the shadowing doesn't change the attribute. Stats show a 30% reduction in specialization failures for LOAD_ATTR. Performance mig...

Opengraph URL: https://github.com/python/cpython/pull/123219

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GH-123040: Specialize shadowed LOAD_ATTR.https://github.com/python/cpython/pull/123219/commits#top
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faster-cpython:specialize-shadowed-load-attrhttps://github.com/faster-cpython/cpython/tree/specialize-shadowed-load-attr
Specialize LOAD_ATTR for instance values, even when shadowing class attribute. Provided that class attribute is not a data descriptorhttps://github.com/python/cpython/pull/123219/commits/5e4c3d3a70d94c54f2b5626b35f4d9780aee2a86
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Don't count as shadowed unless optimization failshttps://github.com/python/cpython/pull/123219/commits/a983591215d42f846521d8ff8c8ad88ecf57b028
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Add LOAD_ATTR_CLASS_WITH_METACLASS_CHECK specialization and handle class attributes with metaclasses or shadowed attributes.https://github.com/python/cpython/pull/123219/commits/c0b471104d40470d4039574abdf30fa4ed565745
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Merge branch 'specialize-load-attr-class-shadowed' into specialize-shadowed-load-attrhttps://github.com/python/cpython/pull/123219/commits/b0f4953c078c387e30a76993b53f8c6a288b8ad5
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Differentiate between split keys and non-string keys in statshttps://github.com/python/cpython/pull/123219/commits/6f4843a44111f3b04f137d7bfc1380837070df54
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Merge branch 'main' into specialize-shadowed-load-attrhttps://github.com/python/cpython/pull/123219/commits/975089fe78955672bb89cadb20940dfbf56df80a
https://github.com/markshannon
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Fix compiler wanring and clarify commenthttps://github.com/python/cpython/pull/123219/commits/cc92e97639d66d7a6c9d66a65d710197c9a457b0
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