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Alan Donovan b7f0150d16 container/intsets: popcount: use POPCNT on amd64, Hacker's Delight algorithm on 386 
This function accounts for 2% of "godoc -analysis=pointer"
and this change makes it twice as fast---and simpler.

Added test and benchmark.

Change-Id: I8578fa42dce34df057d81f6c522a7b4e0506d09d
Reviewed-on: https://go-review.googlesource.com/15211
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Ilya Tocar <ilya.tocar@intel.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
 		2015-10-01 19:57:28 +00:00
benchmark/parse benchmark/parse: fix cosmetic defect in error str. 2015-02-02 17:07:43 +00:00
blog tools: add import comments. 2014-12-09 22:42:16 +00:00
cmd cmd/godoc: set Content-Type in fmt handler 2015-09-28 02:55:19 +00:00
container/intsets container/intsets: popcount: use POPCNT on amd64, Hacker's Delight algorithm on 386 2015-10-01 19:57:28 +00:00
cover cover: accept inaccurate block endings 2015-01-07 02:00:16 +00:00
go go/ssa: use sync.Once instead of sync.atomic 2015-09-18 15:11:51 +00:00
godoc godoc/redirect: add redirect for design proposals at /design/. 2015-10-01 18:35:15 +00:00
imports imports: update static stdlib index to go1.5 2015-09-15 05:17:18 +00:00
oracle go/ssa: rename some API features (incompatible change) 2015-08-31 22:20:12 +00:00
playground playground, godoc: remove HK and RC from share-blocked country code list 2015-09-28 23:55:41 +00:00
present tools: add import comments. 2014-12-09 22:42:16 +00:00
refactor refactor/eg: refactor to break dependency on go/loader 2015-09-01 14:26:06 +00:00
.gitattributes tools: copying .gitattributes to all subrepositories (fixes windows build) 2014-12-23 06:32:51 +00:00
.gitignore dashboard: rearrange tree, in prep for packagification 2015-01-15 02:58:11 +00:00
AUTHORS go.empty: prototype for new subrepository 2012-01-25 14:45:13 -05:00
CONTRIBUTING.md doc: add CONTRIBUTING.md 2015-02-18 23:43:38 +00:00
CONTRIBUTORS go.empty: prototype for new subrepository 2012-01-25 14:45:13 -05:00
LICENSE LICENSE: add 2012-03-17 15:20:58 +11:00
PATENTS go.empty: add PATENTS file to the subrepo. 2012-04-16 11:24:04 +10:00
README go.tools/README: minor correction. 2013-10-29 13:20:58 -04:00
codereview.cfg tools: add codereview.cfg 2015-03-18 17:04:00 +00:00

README 

This subrepository holds the source for various packages and tools that support
the Go programming language.

Some of the tools, godoc and vet for example, are included in binary Go distributions.
Others, including the Go oracle and the test coverage tool, can be fetched with "go get".

Packages include a type-checker for Go and an implementation of the
Static Single Assignment form (SSA) representation for Go programs.

To submit changes to this repository, see http://golang.org/doc/contribute.html.