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Robert Griesemer ddb15cea4a math/bits: much faster ReverseBytes, added respective benchmarks
Measured on 2.3 GHz Intel Core i7, running maxOS 10.12.3.

benchmark                     old ns/op     new ns/op     delta
BenchmarkReverseBytes-8       11.4          3.51          -69.21%
BenchmarkReverseBytes16-8     6.87          0.64          -90.68%
BenchmarkReverseBytes32-8     7.79          0.65          -91.66%
BenchmarkReverseBytes64-8     11.6          0.64          -94.48%

name              old time/op  new time/op  delta
ReverseBytes-8    11.4ns ± 0%   3.5ns ± 0%   ~     (p=1.000 n=1+1)
ReverseBytes16-8  6.87ns ± 0%  0.64ns ± 0%   ~     (p=1.000 n=1+1)
ReverseBytes32-8  7.79ns ± 0%  0.65ns ± 0%   ~     (p=1.000 n=1+1)
ReverseBytes64-8  11.6ns ± 0%   0.6ns ± 0%   ~     (p=1.000 n=1+1)

Change-Id: I67b529652b3b613c61687e9e185e8d4ee40c51a2
Reviewed-on: https://go-review.googlesource.com/37211
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2017-02-17 19:38:26 +00:00
.github doc: improve issue template and contribution guidelines 2017-02-11 20:42:06 +00:00
api Revert "cmd/go: note when some Go files were ignored on no-Go-files errors" 2016-12-21 05:25:57 +00:00
doc doc: document go1.8 2017-02-16 16:36:59 +00:00
lib/time lib/time: update tzdata to 2016j 2017-01-05 01:00:53 +00:00
misc runtime: enable/disable SIGPROF if needed when profiling 2017-02-09 18:53:34 +00:00
src math/bits: much faster ReverseBytes, added respective benchmarks 2017-02-17 19:38:26 +00:00
test cmd/compile: re-enable nilcheck removal in same block 2017-02-17 19:19:59 +00:00
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.gitignore cmd/dist: move cmd/go z files to cmd/go/internal/cfg 2017-02-03 20:30:52 +00:00
AUTHORS A+C: automated update 2016-12-21 03:22:22 +00:00
CONTRIBUTING.md doc: improve issue template and contribution guidelines 2017-02-11 20:42:06 +00:00
CONTRIBUTORS A+C: automated update 2016-12-21 03:22:22 +00:00
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