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David Chase 11da2b227a runtime: copy some functions from math/bits to runtime/internal/sys
CL 201765 activated calls from the runtime to functions in math/bits.
When coverage and race detection were simultaneously enabled,
this caused a crash when the covered+race-checked code in
math/bits was called from the runtime before there was even a P.

PS Win for gdlv in helping sort this out.

TODO - next CL intrinsifies the new functions in
runtime/internal/sys

TODO/Would-be-nice - Ctz64 and TrailingZeros64 are the same
function; 386.s is intrinsified; clean all that up.

Fixes #35461.
Updates #35112.

Change-Id: I750a54dba493130ad3e68a06530ede7687d41e1d
Reviewed-on: https://go-review.googlesource.com/c/go/+/206199
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-11-08 23:22:06 +00:00
.github .github: don't render author-facing text in ISSUE_TEMPLATE 2018-11-02 04:47:34 +00:00
api unicode: upgrade to Unicode 12 2019-11-05 14:34:56 +00:00
doc doc: document new math.Fma function 2019-11-07 21:59:39 +00:00
lib/time lib/time: update tz data to 2019b 2019-07-03 23:08:27 +00:00
misc misc/ios: bump -mios-version-min 2019-11-05 14:44:56 +00:00
src runtime: copy some functions from math/bits to runtime/internal/sys 2019-11-08 23:22:06 +00:00
test runtime: fix line number for faulting instructions 2019-11-08 21:05:17 +00:00
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.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A+C: change email address for Akhil Indurti 2019-09-09 15:30:38 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS C: update email address for utkarsh-extc 2019-10-03 12:39:06 +00:00
favicon.ico website: recreate 16px and 32px favicon 2016-08-25 15:43:32 +00:00
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