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Keith Randall 01b9ae22ed cmd/compile: constant-fold switches early in compilation
So that the inliner knows all the other cases are dead and doesn't
accumulate any cost for them.

The canonical case for this is switching on runtime.GOOS, which occurs
several places in the stdlib.

Fixes #50253

Change-Id: I44823aaebb6c1b03c9b0c12d10086db81954350f
Reviewed-on: https://go-review.googlesource.com/c/go/+/399694
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-04-14 19:37:30 +00:00
.github .github: remove duplicate security link 2022-01-07 17:55:09 +00:00
api crypto/x509: add CertPool.Clone 2022-04-13 19:04:59 +00:00
doc doc/go1.19: document cmd/go changes involving -trimpath 2022-04-12 22:05:26 +00:00
lib/time lib/time, time/tzdata: update to 2021e 2021-11-11 05:16:39 +00:00
misc all: gofmt main repo 2022-04-11 16:34:30 +00:00
src cmd/compile: constant-fold switches early in compilation 2022-04-14 19:37:30 +00:00
test cmd/compile: constant-fold switches early in compilation 2022-04-14 19:37:30 +00:00
.gitattributes
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
AUTHORS A+C: add Wen Yang (individual CLA) 2022-04-11 22:24:03 +00:00
codereview.cfg
CONTRIBUTING.md
CONTRIBUTORS A+C: add Wen Yang (individual CLA) 2022-04-11 22:24:03 +00:00
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README.md README.md: update links to go.dev 2022-03-20 16:05:03 +00:00
SECURITY.md

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