-
On architectures with weak memory consistency a write barrier is needed before the write to the pointer array. Fixes #12469 Test Plan: rebuilt Stackage nightly twice on powerpc64le Reviewers: hvr, rrnewton, erikd, austin, simonmar, bgamari Reviewed By: erikd, bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D2525 GHC Trac Issues: #12469 (cherry picked from commit 2cb8cc26)
8008d27c