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Cherry Zhang ceca99bdeb cmd/compile, cmd/internal/obj/ppc64: mark unsafe points 
We'll use CTR as a scratch register for call injection. Mark code
sequences that use CTR as unsafe for async preemption. Currently
it is only used in LoweredZero and LoweredMove. It is unfortunate
that they are nonpreemptible. But I think it is still better than
using LR for call injection and marking all leaf functions
nonpreemptible.

Also mark the prologue of large frame functions nonpreemptible,
as we write below SP.

Change-Id: I05a75431499f3f4b2f23651a7b17f7fcf2afbe06
Reviewed-on: https://go-review.googlesource.com/c/go/+/203823
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2019-11-07 19:20:35 +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: Effective Go: formatting of code example 2019-11-06 21:40:43 +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 cmd/compile, cmd/internal/obj/ppc64: mark unsafe points 2019-11-07 19:20:35 +00:00
test cmd/compile: add signed indivisibility by power of 2 rules 2019-11-07 16:30:46 +00:00
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README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

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Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.

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Contributing

Go is the work of thousands of contributors. We appreciate your help!

To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html

Note that the Go project uses the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.