It seems to me that if there is one way that is always faster it would hardly de... | Hacker News

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		fifilura 78 days ago \| parent \| context \| favorite \| on: When O3 is 2x slower than O2 It seems to me that if there is one way that is always faster it would hardly deserve a secret setting, it should be the default?

mpyne 77 days ago [–]

What secret setting is that? Whether taking a branch or a conditional move is faster or not depends a lot on the code and the data it's being run on so it's not easy to say up front which one is always faster.

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