runtime: specialize memhash32 and memhash64
AMD64 with AES support disabled: name old time/op new time/op delta MapPopulate/1 78.0ns ± 1% 75.5ns ± 1% -3.17% (p=0.000 n=10+9) MapPopulate/10 764ns ± 2% 673ns ± 2% -11.91% (p=0.000 n=10+10) MapPopulate/100 9.52µs ± 1% 8.54µs ± 1% -10.37% (p=0.000 n=8+10) MapPopulate/1000 116µs ± 2% 103µs ± 1% -10.40% (p=0.000 n=10+8) MapPopulate/10000 1.01ms ± 1% 0.90ms ± 1% -10.70% (p=0.000 n=10+10) MapPopulate/100000 9.81ms ± 1% 8.67ms ± 2% -11.54% (p=0.000 n=10+10) 386 with AES support disabled: name old time/op new time/op delta MapPopulate/1 95.3ns ± 1% 90.6ns ± 1% -4.95% (p=0.000 n=10+9) MapPopulate/10 983ns ± 2% 912ns ± 1% -7.18% (p=0.000 n=10+10) MapPopulate/100 11.9µs ± 2% 11.2µs ± 1% -6.01% (p=0.000 n=10+10) MapPopulate/1000 140µs ± 1% 131µs ± 1% -6.19% (p=0.000 n=10+10) MapPopulate/10000 1.26ms ± 2% 1.18ms ± 1% -5.93% (p=0.000 n=9+10) MapPopulate/100000 12.1ms ± 2% 11.4ms ± 1% -5.48% (p=0.000 n=10+10) Fixes #21539 Change-Id: Ice128c947c9a6a294800d6a5250d82045eb70b55 Reviewed-on: https://go-review.googlesource.com/59352 Run-TryBot: Martin Möhrmann <moehrmann@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:Keith Randall <khr@golang.org>
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