@mike_acton That's a nice precision but shouldn't we just use rsqrtss ? It's less precise but surely faster in recent microarchitectures.

Source

• URL: https://x.com/nullspector/status/1686043047677591552
• Author: Michael Spector (@nullspector)
• Posted: 2023-07-31 15:56:02

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1/ @nullspector

@mike_acton

That’s a nice precision but shouldn’t we just use rsqrtss ? It’s less precise but surely faster in recent microarchitectures. Or am I missing something?

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