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GeezerVison is showing github.com — PATCH - Fix Windows build of Python for latest WinSDK. by LaylDupont · Pull Request #1 · python-cmake-buildsystem/cpython Conversation( same as c0ee341 )
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…ythonGH-23767) The existing volatile `left`/`right` pointers guarantee that the reads will all occur, but does not guarantee that they will be _used_. So a compiler can still short-circuit the loop, saving e.g. the overhead of doing the xors and especially the overhead of the data dependency between `result` and the reads. That would change performance depending on where the first unequal byte occurs. This change removes that optimization. (This is change GH-1 from https://bugs.python.org/issue40791 .) (cherry picked from commit 3172936) Co-authored-by: Devin Jeanpierre <[email protected]>
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