{"action":"opened","issue":{"url":"https://api.github.com/repos/Microsoft/ChakraCore/issues/260","repository_url":"https://api.github.com/repos/Microsoft/ChakraCore","labels_url":"https://api.github.com/repos/Microsoft/ChakraCore/issues/260/labels{/name}","comments_url":"https://api.github.com/repos/Microsoft/ChakraCore/issues/260/comments","events_url":"https://api.github.com/repos/Microsoft/ChakraCore/issues/260/events","html_url":"https://github.com/Microsoft/ChakraCore/issues/260","id":131187482,"number":260,"title":"Missing FPU state save/restore","user":{"login":"jianchun","id":11861955,"avatar_url":"https://avatars.githubusercontent.com/u/11861955?v=3","gravatar_id":"","url":"https://api.github.com/users/jianchun","html_url":"https://github.com/jianchun","followers_url":"https://api.github.com/users/jianchun/followers","following_url":"https://api.github.com/users/jianchun/following{/other_user}","gists_url":"https://api.github.com/users/jianchun/gists{/gist_id}","starred_url":"https://api.github.com/users/jianchun/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jianchun/subscriptions","organizations_url":"https://api.github.com/users/jianchun/orgs","repos_url":"https://api.github.com/users/jianchun/repos","events_url":"https://api.github.com/users/jianchun/events{/privacy}","received_events_url":"https://api.github.com/users/jianchun/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":{"login":"kunalspathak","id":12488060,"avatar_url":"https://avatars.githubusercontent.com/u/12488060?v=3","gravatar_id":"","url":"https://api.github.com/users/kunalspathak","html_url":"https://github.com/kunalspathak","followers_url":"https://api.github.com/users/kunalspathak/followers","following_url":"https://api.github.com/users/kunalspathak/following{/other_user}","gists_url":"https://api.github.com/users/kunalspathak/gists{/gist_id}","starred_url":"https://api.github.com/users/kunalspathak/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/kunalspathak/subscriptions","organizations_url":"https://api.github.com/users/kunalspathak/orgs","repos_url":"https://api.github.com/users/kunalspathak/repos","events_url":"https://api.github.com/users/kunalspathak/events{/privacy}","received_events_url":"https://api.github.com/users/kunalspathak/received_events","type":"User","site_admin":false},"milestone":null,"comments":0,"created_at":"2016-02-03T23:23:05Z","updated_at":"2016-02-03T23:23:05Z","closed_at":null,"body":"According to @Yongqu, our script execution needs certain FPU states, so we should save/set/restore FPU states for script execution. ```SmartFPUControl``` class is intended for that task. However, ChakraCore JSRT calls apparently do not conform. We don't have ```SmartFPUControl``` usage at all. We should review/refactor/add to any code path that could lead to script execution.\r\n"}}