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| author | Josh Bleecher Snyder <josharian@gmail.com> | 2016-11-15 22:33:10 -0800 |
|---|---|---|
| committer | Josh Bleecher Snyder <josharian@gmail.com> | 2017-02-01 20:23:36 +0000 |
| commit | 1cbc5aa5290437e81859911cf8e022be2448cc09 (patch) | |
| tree | 16c6b289c06c63feb9b8846fefa27b35dc7b4759 /src/database/sql | |
| parent | 302474c61c15095406325773172bfb0a819ce3af (diff) | |
| download | go-1cbc5aa5290437e81859911cf8e022be2448cc09.tar.xz | |
cmd/compile: insertVarPhis micro-optimization
Algorithmic improvements here are hard.
Lifting a lookup out of the loop helps a little, though.
To compile the code in #17926:
name old s/op new s/op delta
Real 146 ± 3% 140 ± 4% -3.87% (p=0.002 n=10+10)
User 143 ± 3% 139 ± 4% -3.08% (p=0.005 n=10+10)
Sys 8.28 ±35% 8.08 ±28% ~ (p=0.684 n=10+10)
Updates #17926.
Change-Id: Ic255ac8b7b409c1a53791058818b7e2cf574abe3
Reviewed-on: https://go-review.googlesource.com/33305
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Diffstat (limited to 'src/database/sql')
0 files changed, 0 insertions, 0 deletions