{"action":"created","issue":{"url":"https://api.github.com/repos/apple/swift/issues/2652","repository_url":"https://api.github.com/repos/apple/swift","labels_url":"https://api.github.com/repos/apple/swift/issues/2652/labels{/name}","comments_url":"https://api.github.com/repos/apple/swift/issues/2652/comments","events_url":"https://api.github.com/repos/apple/swift/issues/2652/events","html_url":"https://github.com/apple/swift/pull/2652","id":156365573,"number":2652,"title":"Make sure TSan does not report false positives on IRGened code","user":{"login":"AnnaZaks","id":15273619,"avatar_url":"https://avatars.githubusercontent.com/u/15273619?v=3","gravatar_id":"","url":"https://api.github.com/users/AnnaZaks","html_url":"https://github.com/AnnaZaks","followers_url":"https://api.github.com/users/AnnaZaks/followers","following_url":"https://api.github.com/users/AnnaZaks/following{/other_user}","gists_url":"https://api.github.com/users/AnnaZaks/gists{/gist_id}","starred_url":"https://api.github.com/users/AnnaZaks/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/AnnaZaks/subscriptions","organizations_url":"https://api.github.com/users/AnnaZaks/orgs","repos_url":"https://api.github.com/users/AnnaZaks/repos","events_url":"https://api.github.com/users/AnnaZaks/events{/privacy}","received_events_url":"https://api.github.com/users/AnnaZaks/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":{"login":"tkremenek","id":3087023,"avatar_url":"https://avatars.githubusercontent.com/u/3087023?v=3","gravatar_id":"","url":"https://api.github.com/users/tkremenek","html_url":"https://github.com/tkremenek","followers_url":"https://api.github.com/users/tkremenek/followers","following_url":"https://api.github.com/users/tkremenek/following{/other_user}","gists_url":"https://api.github.com/users/tkremenek/gists{/gist_id}","starred_url":"https://api.github.com/users/tkremenek/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tkremenek/subscriptions","organizations_url":"https://api.github.com/users/tkremenek/orgs","repos_url":"https://api.github.com/users/tkremenek/repos","events_url":"https://api.github.com/users/tkremenek/events{/privacy}","received_events_url":"https://api.github.com/users/tkremenek/received_events","type":"User","site_admin":false},"milestone":{"url":"https://api.github.com/repos/apple/swift/milestones/2","html_url":"https://github.com/apple/swift/milestones/Swift%203.0%20Preview%201","labels_url":"https://api.github.com/repos/apple/swift/milestones/2/labels","id":1765481,"number":2,"title":"Swift 3.0 Preview 1","description":null,"creator":{"login":"tkremenek","id":3087023,"avatar_url":"https://avatars.githubusercontent.com/u/3087023?v=3","gravatar_id":"","url":"https://api.github.com/users/tkremenek","html_url":"https://github.com/tkremenek","followers_url":"https://api.github.com/users/tkremenek/followers","following_url":"https://api.github.com/users/tkremenek/following{/other_user}","gists_url":"https://api.github.com/users/tkremenek/gists{/gist_id}","starred_url":"https://api.github.com/users/tkremenek/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tkremenek/subscriptions","organizations_url":"https://api.github.com/users/tkremenek/orgs","repos_url":"https://api.github.com/users/tkremenek/repos","events_url":"https://api.github.com/users/tkremenek/events{/privacy}","received_events_url":"https://api.github.com/users/tkremenek/received_events","type":"User","site_admin":false},"open_issues":2,"closed_issues":49,"state":"open","created_at":"2016-05-13T19:16:11Z","updated_at":"2016-05-24T16:44:42Z","due_on":null,"closed_at":null},"comments":6,"created_at":"2016-05-23T20:59:20Z","updated_at":"2016-05-24T17:30:22Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/apple/swift/pulls/2652","html_url":"https://github.com/apple/swift/pull/2652","diff_url":"https://github.com/apple/swift/pull/2652.diff","patch_url":"https://github.com/apple/swift/pull/2652.patch"},"body":"Address <rdar://problem/26427107> TSan reports false positives on Swift code\r\n\r\nTSan does not see all of the synchronization happening in the runtime since the runtime is not instrumented. Due to tight interplay between the runtime and the generated code, we report false positives when metadata or witness tables are accessed on certain types.\r\n\r\nFix these false positives by modifying the IRGen to hide writes in some cases and exposing stronger barriers in others.\r\n\r\nAdditionally, now that we have compiler-rt, add basic sanitizer tests."},"comment":{"url":"https://api.github.com/repos/apple/swift/issues/comments/221345278","html_url":"https://github.com/apple/swift/pull/2652#issuecomment-221345278","issue_url":"https://api.github.com/repos/apple/swift/issues/2652","id":221345278,"user":{"login":"AnnaZaks","id":15273619,"avatar_url":"https://avatars.githubusercontent.com/u/15273619?v=3","gravatar_id":"","url":"https://api.github.com/users/AnnaZaks","html_url":"https://github.com/AnnaZaks","followers_url":"https://api.github.com/users/AnnaZaks/followers","following_url":"https://api.github.com/users/AnnaZaks/following{/other_user}","gists_url":"https://api.github.com/users/AnnaZaks/gists{/gist_id}","starred_url":"https://api.github.com/users/AnnaZaks/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/AnnaZaks/subscriptions","organizations_url":"https://api.github.com/users/AnnaZaks/orgs","repos_url":"https://api.github.com/users/AnnaZaks/repos","events_url":"https://api.github.com/users/AnnaZaks/events{/privacy}","received_events_url":"https://api.github.com/users/AnnaZaks/received_events","type":"User","site_admin":false},"created_at":"2016-05-24T17:30:21Z","updated_at":"2016-05-24T17:30:21Z","body":"Back to Ted. The smoke test passes."}}
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