tree f5a78e80aa3d56c7d21fc86d0e7d872ac2334269
parent 89105404f94005ffa8e2b08df78015dc9ac91362
author Ian Lance Taylor <iant@golang.org> 1518451470 -0800
committer Ian Lance Taylor <iant@golang.org> 1518461334 +0000

runtime, sync/atomic: use write barrier for atomic pointer functions

This copies atomic_pointer.go from 1.10rc2.  It was omitted during the
transition of the runtime from C to Go, and I forgot about it.

This may help with https://gcc.gnu.org/PR84215.

Change-Id: If70fb6c827106142c7258a82c42c13b337d3e9ff
Reviewed-on: https://go-review.googlesource.com/93197
Reviewed-by: Than McIntosh <thanm@google.com>