{"action":"created","issue":{"url":"https://api.github.com/repos/rust-lang/rust/issues/36653","repository_url":"https://api.github.com/repos/rust-lang/rust","labels_url":"https://api.github.com/repos/rust-lang/rust/issues/36653/labels{/name}","comments_url":"https://api.github.com/repos/rust-lang/rust/issues/36653/comments","events_url":"https://api.github.com/repos/rust-lang/rust/issues/36653/events","html_url":"https://github.com/rust-lang/rust/issues/36653","id":178710270,"number":36653,"title":"win64 generates SSE instructions even when they are disabled with -sse","user":{"login":"AndrewScull","id":2076497,"avatar_url":"https://avatars3.githubusercontent.com/u/2076497?v=4","gravatar_id":"","url":"https://api.github.com/users/AndrewScull","html_url":"https://github.com/AndrewScull","followers_url":"https://api.github.com/users/AndrewScull/followers","following_url":"https://api.github.com/users/AndrewScull/following{/other_user}","gists_url":"https://api.github.com/users/AndrewScull/gists{/gist_id}","starred_url":"https://api.github.com/users/AndrewScull/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/AndrewScull/subscriptions","organizations_url":"https://api.github.com/users/AndrewScull/orgs","repos_url":"https://api.github.com/users/AndrewScull/repos","events_url":"https://api.github.com/users/AndrewScull/events{/privacy}","received_events_url":"https://api.github.com/users/AndrewScull/received_events","type":"User","site_admin":false},"labels":[{"id":234956,"url":"https://api.github.com/repos/rust-lang/rust/labels/A-codegen","name":"A-codegen","color":"d7e102","default":false},{"id":108333,"url":"https://api.github.com/repos/rust-lang/rust/labels/A-LLVM","name":"A-LLVM","color":"d7e102","default":false},{"id":650731663,"url":"https://api.github.com/repos/rust-lang/rust/labels/C-bug","name":"C-bug","color":"f5f1fd","default":false}],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":3,"created_at":"2016-09-22T20:19:23Z","updated_at":"2017-08-25T16:28:25Z","closed_at":"2017-08-25T16:28:25Z","body":"Following the advice of https://github.com/rust-lang/rfcs/issues/1364, I tried to avoid using SSE instructions by disabling MMX and SSE, and enabling soft-float with the features field of my tagert \"features\": \"-mmx,-sse,+soft-float\". However, when using an extern \"win64\" function for my UEFI entry point, movaps instructions are still generated to save and restore the xmm6-15 registers.\n\nI have put together a [minimal example](https://github.com/AndrewScull/rust-win64-soft-float) to demonstate the problem.\n"},"comment":{"url":"https://api.github.com/repos/rust-lang/rust/issues/comments/324970596","html_url":"https://github.com/rust-lang/rust/issues/36653#issuecomment-324970596","issue_url":"https://api.github.com/repos/rust-lang/rust/issues/36653","id":324970596,"user":{"login":"alexcrichton","id":64996,"avatar_url":"https://avatars1.githubusercontent.com/u/64996?v=4","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},"created_at":"2017-08-25T16:28:25Z","updated_at":"2017-08-25T16:28:25Z","body":"We I believe have long since updated LLVM, so closing."}}
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