{"action":"created","issue":{"url":"https://api.github.com/repos/servo/rust-mozjs/issues/291","repository_url":"https://api.github.com/repos/servo/rust-mozjs","labels_url":"https://api.github.com/repos/servo/rust-mozjs/issues/291/labels{/name}","comments_url":"https://api.github.com/repos/servo/rust-mozjs/issues/291/comments","events_url":"https://api.github.com/repos/servo/rust-mozjs/issues/291/events","html_url":"https://github.com/servo/rust-mozjs/pull/291","id":172649179,"number":291,"title":"SpiderMonkey upgrade","user":{"login":"Ms2ger","id":111161,"avatar_url":"https://avatars.githubusercontent.com/u/111161?v=3","gravatar_id":"","url":"https://api.github.com/users/Ms2ger","html_url":"https://github.com/Ms2ger","followers_url":"https://api.github.com/users/Ms2ger/followers","following_url":"https://api.github.com/users/Ms2ger/following{/other_user}","gists_url":"https://api.github.com/users/Ms2ger/gists{/gist_id}","starred_url":"https://api.github.com/users/Ms2ger/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Ms2ger/subscriptions","organizations_url":"https://api.github.com/users/Ms2ger/orgs","repos_url":"https://api.github.com/users/Ms2ger/repos","events_url":"https://api.github.com/users/Ms2ger/events{/privacy}","received_events_url":"https://api.github.com/users/Ms2ger/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":21,"created_at":"2016-08-23T09:14:08Z","updated_at":"2016-09-02T22:24:13Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/servo/rust-mozjs/pulls/291","html_url":"https://github.com/servo/rust-mozjs/pull/291","diff_url":"https://github.com/servo/rust-mozjs/pull/291.diff","patch_url":"https://github.com/servo/rust-mozjs/pull/291.patch"},"body":"Recreated the PR to aid collaboration.\n\n<!-- Reviewable:start -->\n---\nThis change is [<img src=\"https://reviewable.io/review_button.svg\" height=\"34\" align=\"absmiddle\" alt=\"Reviewable\"/>](https://reviewable.io/reviews/servo/rust-mozjs/291)\n<!-- Reviewable:end -->\n"},"comment":{"url":"https://api.github.com/repos/servo/rust-mozjs/issues/comments/244501170","html_url":"https://github.com/servo/rust-mozjs/pull/291#issuecomment-244501170","issue_url":"https://api.github.com/repos/servo/rust-mozjs/issues/291","id":244501170,"user":{"login":"fitzgen","id":74571,"avatar_url":"https://avatars.githubusercontent.com/u/74571?v=3","gravatar_id":"","url":"https://api.github.com/users/fitzgen","html_url":"https://github.com/fitzgen","followers_url":"https://api.github.com/users/fitzgen/followers","following_url":"https://api.github.com/users/fitzgen/following{/other_user}","gists_url":"https://api.github.com/users/fitzgen/gists{/gist_id}","starred_url":"https://api.github.com/users/fitzgen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/fitzgen/subscriptions","organizations_url":"https://api.github.com/users/fitzgen/orgs","repos_url":"https://api.github.com/users/fitzgen/repos","events_url":"https://api.github.com/users/fitzgen/events{/privacy}","received_events_url":"https://api.github.com/users/fitzgen/received_events","type":"User","site_admin":false},"created_at":"2016-09-02T22:24:13Z","updated_at":"2016-09-02T22:24:13Z","body":"Either `rustc` or `g++` is not following the x86-64 ABI here. They're disagreeing on whether `JS::CallArgs` should be classified as MEMORY and therefore have the stack address of the return value passed as an implicit first parameter in `rdi` or not. `g++` is classifying it as MEMORY and using the implicit stack pointer, while `rustc` is classifying it as INTEGER and splitting it across `rax` and `rdx`."}}
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