319787a528
Note that the intrinsic implementation panics separately for overflow and divide by zero, which matches the behavior of the pure go implementation. There is a modest performance improvement after intrinsic implementation. name old time/op new time/op delta Div-4 53.0ns ± 1% 47.0ns ± 0% -11.28% (p=0.008 n=5+5) Div32-4 18.4ns ± 0% 18.5ns ± 1% ~ (p=0.444 n=5+5) Div64-4 53.3ns ± 0% 47.5ns ± 4% -10.77% (p=0.008 n=5+5) Updates #28273 Change-Id: Ic1688ecc0964acace2e91bf44ef16f5fb6b6bc82 Reviewed-on: https://go-review.googlesource.com/c/144378 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> |
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