{"action":"opened","issue":{"url":"https://api.github.com/repos/rust-lang/rust/issues/33075","repository_url":"https://api.github.com/repos/rust-lang/rust","labels_url":"https://api.github.com/repos/rust-lang/rust/issues/33075/labels{/name}","comments_url":"https://api.github.com/repos/rust-lang/rust/issues/33075/comments","events_url":"https://api.github.com/repos/rust-lang/rust/issues/33075/events","html_url":"https://github.com/rust-lang/rust/issues/33075","id":149194680,"number":33075,"title":"Add support for new `allocsize` attribute in LLVM","user":{"login":"alexcrichton","id":64996,"avatar_url":"https://avatars.githubusercontent.com/u/64996?v=3","gravatar_id":"","url":"https://api.github.com/users/alexcrichton","html_url":"https://github.com/alexcrichton","followers_url":"https://api.github.com/users/alexcrichton/followers","following_url":"https://api.github.com/users/alexcrichton/following{/other_user}","gists_url":"https://api.github.com/users/alexcrichton/gists{/gist_id}","starred_url":"https://api.github.com/users/alexcrichton/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/alexcrichton/subscriptions","organizations_url":"https://api.github.com/users/alexcrichton/orgs","repos_url":"https://api.github.com/users/alexcrichton/repos","events_url":"https://api.github.com/users/alexcrichton/events{/privacy}","received_events_url":"https://api.github.com/users/alexcrichton/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-04-18T16:01:32Z","updated_at":"2016-04-18T16:01:32Z","closed_at":null,"body":"This is mostly a TODO issue for when we next upgrade LLVM. They have recently [landed upstream](http://reviews.llvm.org/rL266032) support for a new attribute to tag functions with to indicate that they are an allocator.\r\n\r\nThis obsoletes [our local patch](https://github.com/rust-lang/llvm/commit/cca16c06fbec672b7d1dd9753491783a006bdfe5) and we should use these attributes instead."}}