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Heejin Ahn
7d610ade1d
Summary: This adds `atomic.fence` instruction: https://github.com/WebAssembly/threads/blob/master/proposals/threads/Overview.md#fence-operator And we now emit the new `atomic.fence` instruction for multithread fences, rather than the prevous `atomic.rmw` hack. Reviewers: dschuff Subscribers: sbc100, jgravelle-google, hiraditya, sunfish, jfb, tlively, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D66794 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@370272 91177308-0d34-0410-b5e6-96231b3b80d8
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