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Ilya Tocar authored
Use SSE 4.1 rounding instruction to perform rounding Results (haswell): name old time/op new time/op delta Floor-48 2.71ns ± 0% 1.87ns ± 1% -31.17% (p=0.000 n=16+19) Ceil-48 3.09ns ± 3% 2.16ns ± 0% -30.16% (p=0.000 n=19+12) Change-Id: If63715879eed6530b1eb4fc96132d827f8f43909 Reviewed-on: https://go-review.googlesource.com/14561Reviewed-by:
Klaus Post <klauspost@gmail.com> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Keith Randall <khr@golang.org>
37cfb2e0
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