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Josh Bleecher Snyder 0b0cc4154e runtime: refactor walking of bucket overflows
This eliminates a nil check of b while evaluating b.tophash,
which is in the inner loop of many hot map functions.
It also makes the code a bit clearer.

Also remove some gotos in favor of labeled breaks.

On non-x86 architectures, this change introduces a pointless reg-reg move,
although the cause is well-understood (#21572).

Change-Id: Ib7ee58b59ea5463b92e1590c8b8f5c0ef87d410a
Reviewed-on: https://go-review.googlesource.com/58372
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Martin Möhrmann <moehrmann@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
2017-08-24 17:17:49 +00:00
.github .github: update ISSUE_TEMPLATE to be closer to 'go bug' 2017-08-19 04:06:10 +00:00
api doc, api: add syscall.SysProcAttr.AmbientCaps change to 1.9 notes, API 2017-06-29 03:29:46 +00:00
doc doc/go1.9: fix typo in Moved GOROOT 2017-08-21 04:41:20 +00:00
lib/time time: vendor tzdata-2017b and update test 2017-06-07 21:23:58 +00:00
misc misc/ios: add support for device ids to the exec wrapper 2017-08-21 21:08:17 +00:00
src runtime: refactor walking of bucket overflows 2017-08-24 17:17:49 +00:00
test cmd/compile: eliminate stores to unread auto variables 2017-08-24 16:53:56 +00:00
.gitattributes
.gitignore .gitignore: include only Go project artifiacts 2017-08-15 21:37:05 +00:00
AUTHORS A+C: final updates for Go 1.9 2017-07-18 01:47:54 +00:00
CONTRIBUTING.md .github: recommend 'go bug' when filing an issue 2017-07-24 17:18:34 +00:00
CONTRIBUTORS A+C: final updates for Go 1.9 2017-07-18 01:47:54 +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: add attribution for the Gopher image 2017-02-03 19:39:41 +00:00
robots.txt

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