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go / go / 11a224bc5617577fd7c2e02c7ee072303e8d592d
commit11a224bc5617577fd7c2e02c7ee072303e8d592d[log] [tgz]
authorDavid Chase <drchase@google.com>Tue Feb 21 15:22:52 2017 -0500
committerAustin Clements <austin@google.com>Wed Apr 05 16:58:14 2017 +0000
treecdaa615162c5b3792f40d4a6a3cd199763c4564c
parent3a8841bcaf5e89bc3059ddbf251c1e9a533fdc95 [diff]
[release-branch.go1.8] cmd/compile: add opcode flag hasSideEffects for do-not-remove

Added a flag to generic and various architectures' atomic
operations that are judged to have observable side effects
and thus cannot be dead-code-eliminated.

Test requires GOMAXPROCS > 1 without preemption in loop.

Fixes #19182.

Change-Id: Id2230031abd2cca0bbb32fd68fc8a58fb912070f
Reviewed-on: https://go-review.googlesource.com/39595
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
10 files changed
tree: cdaa615162c5b3792f40d4a6a3cd199763c4564c
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. CONTRIBUTING.md
  12. CONTRIBUTORS
  13. favicon.ico
  14. LICENSE
  15. PATENTS
  16. README.md
  17. robots.txt
  18. VERSION
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