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Josh Bleecher Snyder 0d176621d9 cmd/compile: reuse sort helpers
sort.Sort's argument always escapes.
cse generates many calls to sort.Sort.
Set up a single escaping variable
and re-use it across loops.

name       old alloc/op     new alloc/op     delta
Template       40.7MB ± 0%      40.2MB ± 0%  -1.24%        (p=0.000 n=15+15)
Unicode        33.4MB ± 0%      33.3MB ± 0%  -0.09%        (p=0.000 n=15+15)
GoTypes         121MB ± 0%       119MB ± 0%  -1.48%        (p=0.000 n=14+15)
Compiler        474MB ± 0%       465MB ± 0%  -1.94%        (p=0.000 n=14+15)

name       old allocs/op    new allocs/op    delta
Template         405k ± 0%        394k ± 0%  -2.64%        (p=0.000 n=15+15)
Unicode          350k ± 0%        350k ± 0%  -0.14%        (p=0.000 n=14+15)
GoTypes         1.21M ± 0%       1.18M ± 0%  -3.07%        (p=0.000 n=15+14)
Compiler        4.37M ± 0%       4.18M ± 0%  -4.39%        (p=0.000 n=15+15)


Change-Id: I68cf56dafa0f3ea778826eea19908bd761556154
Reviewed-on: https://go-review.googlesource.com/32220
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-10-27 05:23:48 +00:00
.github doc: improve issue template 2016-08-29 03:33:28 +00:00
api encoding/json: marshal the RawMessage value type the same as its pointer type 2016-10-26 21:03:00 +00:00
doc doc: s/race/ethnicity/ in the Code of Conduct 2016-10-27 02:56:06 +00:00
lib/time lib/time: update to IANA release 2016g (September 2016) 2016-10-20 08:46:49 +00:00
misc misc/cgo/errors: fix malloc test for dragonfly 2016-10-25 20:11:50 +00:00
src cmd/compile: reuse sort helpers 2016-10-27 05:23:48 +00:00
test cmd/compile: add explicit 'where' to EscStep data for explanations 2016-10-26 18:46:59 +00:00
.gitattributes
.gitignore cmd/go: fail with nice error message on bad GOOS/GOARCH pair 2016-05-06 01:18:07 +00:00
AUTHORS A+C: automated updates 2016-06-24 02:21:02 +00:00
CONTRIBUTING.md doc: use new Gerrit URL and mention our instance in CONTRIBUTING.md 2016-03-09 00:52:42 +00:00
CONTRIBUTORS A+C: automated updates 2016-06-24 02:21:02 +00:00
favicon.ico website: recreate 16px and 32px favicon 2016-08-25 15:43:32 +00:00
LICENSE doc: revert copyright date to 2009 2016-06-01 22:40:04 +00:00
PATENTS
README.md readme: emphasize issue tracker is for bugs/proposals 2015-10-02 18:44:14 +00:00
robots.txt

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