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Matthew Dempsky fe23ba4a14 runtime: eliminate scase.kind field
Currently, we include a "kind" field on scase to distinguish the three
kinds of cases in a select statement: sends, receives, and defaults.

This commit removes by kind field by instead arranging for the
compiler to always place sends before receives, and to provide their
counts separately. It also passes an explicit "block bool" parameter
to avoid needing to include a default case in the array.

It's safe to shuffle cases like this because the runtime will
randomize the order they're polled in anyway.

Fixes #40410.

Change-Id: Iaeaed4cf7bddd576d78f2c863bd91a03a5c82df2
Reviewed-on: https://go-review.googlesource.com/c/go/+/245125
Reviewed-by: Keith Randall <khr@golang.org>
2020-08-18 20:06:33 +00:00
.github .github: add link to questions in ISSUE_TEMPLATE 2020-01-06 17:05:31 +00:00
api go/printer: remove exported StdFormat flag 2020-07-17 02:15:01 +00:00
doc all: replace Replace(..., -1) with ReplaceAll(...) 2020-08-17 04:07:23 +00:00
lib/time lib/time, time/tzdata: update tz data to 2020a 2020-04-30 08:07:39 +00:00
misc cmd/cgo: fix mangling of enum and union types 2020-07-31 16:35:33 +00:00
src runtime: eliminate scase.kind field 2020-08-18 20:06:33 +00:00
test cmd/compile: clean up and optimize s390x multiplication rules 2020-08-18 15:39:44 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore
AUTHORS A+C: add Kush Patel (corporate CLA for Hootsuite Inc) 2020-07-08 00:10:44 +00:00
CONTRIBUTING.md
CONTRIBUTORS CONTRIBUTORS: update for the Go 1.15 release 2020-08-10 21:51:48 +00:00
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SECURITY.md SECURITY.md: update go versions 2019-09-26 15:34:57 +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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