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Optimize SipHash by reordering instructions in compress #7

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merged 1 commit into from
Jul 3, 2024

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mat-1
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@mat-1 mat-1 commented Jul 2, 2024

This change optimizes the compress macro by changing the order of instructions so the CPU can parallelize it better. Part of rust-lang/rust#127226, see that PR for more info.

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Thanks, @mat-1! Numbers from rust-lang/rust#127226 look good.

@michaelwoerister michaelwoerister merged commit e7d5b1a into rust-lang:main Jul 3, 2024
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