8000 minor optimization in the implementation of except* · Issue #101169 · python/cpython · GitHub
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minor optimization in the implementation of except* #101169

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iritkatriel opened this issue Jan 19, 2023 · 0 comments · Fixed by #101170
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minor optimization in the implementation of except* #101169

iritkatriel opened this issue Jan 19, 2023 · 0 comments · Fixed by #101170
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type-bug An unexpected behavior, bug, or error

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iritkatriel commented Jan 19, 2023 •
edited by bedevere-bot
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The except* bytecode was implemented before we switched to SWAP/COPY, and the move to them resulted in bytecode that contains one more instruction than necessary:

COPY 1
BUILD_LIST
SWAP 2

can be written as

BUILD_LIST
COPY 2

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gh-101169: reduce the implementation of except* by one bytecode instruction iritkatriel/cpython
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