gh-139757: Add _GUARD_NOS_COMPACT_ASCII for compact ascii optimization#143332
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corona10 merged 3 commits intoJan 2, 2026
python:mainpython/cpython:mainfrom
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gh-139757: Add _GUARD_NOS_COMPACT_ASCII for compact ascii optimization#143332corona10 merged 3 commits intopython:mainpython/cpython:mainfrom corona10:gh-139757-guard-asciicorona10/cpython:gh-139757-guard-asciiCopy head branch name to clipboard
corona10 merged 3 commits into
python:mainpython/cpython:mainfrom
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Introduce
_GUARD_NOS_COMPACT_ASCIIfor the compact ASCII optimization path.Although this guard is potentially more expensive than
_GUARD_NOS_UNICODE, it helps the optimizer exit earlier when it attempts to optimizeBINARY_OP_SUBSCR_STR_INT.