{"action":"created","issue":{"url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/issues/133","labels_url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/issues/133/labels{/name}","comments_url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/issues/133/comments","events_url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/issues/133/events","html_url":"https://github.com/ComputationalRadiationPhysics/alpaka/pull/133","id":126246126,"number":133,"title":"fix gcc incorrect assembly bug","user":{"login":"BenjaminW3","id":8956583,"avatar_url":"https://avatars.githubusercontent.com/u/8956583?v=3","gravatar_id":"","url":"https://api.github.com/users/BenjaminW3","html_url":"https://github.com/BenjaminW3","followers_url":"https://api.github.com/users/BenjaminW3/followers","following_url":"https://api.github.com/users/BenjaminW3/following{/other_user}","gists_url":"https://api.github.com/users/BenjaminW3/gists{/gist_id}","starred_url":"https://api.github.com/users/BenjaminW3/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/BenjaminW3/subscriptions","organizations_url":"https://api.github.com/users/BenjaminW3/orgs","repos_url":"https://api.github.com/users/BenjaminW3/repos","events_url":"https://api.github.com/users/BenjaminW3/events{/privacy}","received_events_url":"https://api.github.com/users/BenjaminW3/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/labels/bug","name":"bug","color":"fc2929"}],"state":"open","locked":false,"assignee":{"login":"psychocoderHPC","id":4037125,"avatar_url":"https://avatars.githubusercontent.com/u/4037125?v=3","gravatar_id":"","url":"https://api.github.com/users/psychocoderHPC","html_url":"https://github.com/psychocoderHPC","followers_url":"https://api.github.com/users/psychocoderHPC/followers","following_url":"https://api.github.com/users/psychocoderHPC/following{/other_user}","gists_url":"https://api.github.com/users/psychocoderHPC/gists{/gist_id}","starred_url":"https://api.github.com/users/psychocoderHPC/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/psychocoderHPC/subscriptions","organizations_url":"https://api.github.com/users/psychocoderHPC/orgs","repos_url":"https://api.github.com/users/psychocoderHPC/repos","events_url":"https://api.github.com/users/psychocoderHPC/events{/privacy}","received_events_url":"https://api.github.com/users/psychocoderHPC/received_events","type":"User","site_admin":false},"milestone":null,"comments":1,"created_at":"2016-01-12T18:43:38Z","updated_at":"2016-01-20T18:43:30Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/pulls/133","html_url":"https://github.com/ComputationalRadiationPhysics/alpaka/pull/133","diff_url":"https://github.com/ComputationalRadiationPhysics/alpaka/pull/133.diff","patch_url":"https://github.com/ComputationalRadiationPhysics/alpaka/pull/133.patch"},"body":"gcc seems to be overly optimistic in release mode and misoptimizes some accesses to members of the `AccDevProps` struct for some TDim/TSize combinations.\r\nThe resulting assembly incorrectly tries to access the memory adress `0x0000000000000080`.\r\nThis bug is not triggered when the members are reordered.\r\nAs I was unable to build a minimal repro, there is no ticket for it."},"comment":{"url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/issues/comments/173320428","html_url":"https://github.com/ComputationalRadiationPhysics/alpaka/pull/133#issuecomment-173320428","issue_url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/issues/133","id":173320428,"user":{"login":"BenjaminW3","id":8956583,"avatar_url":"https://avatars.githubusercontent.com/u/8956583?v=3","gravatar_id":"","url":"https://api.github.com/users/BenjaminW3","html_url":"https://github.com/BenjaminW3","followers_url":"https://api.github.com/users/BenjaminW3/followers","following_url":"https://api.github.com/users/BenjaminW3/following{/other_user}","gists_url":"https://api.github.com/users/BenjaminW3/gists{/gist_id}","starred_url":"https://api.github.com/users/BenjaminW3/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/BenjaminW3/subscriptions","organizations_url":"https://api.github.com/users/BenjaminW3/orgs","repos_url":"https://api.github.com/users/BenjaminW3/repos","events_url":"https://api.github.com/users/BenjaminW3/events{/privacy}","received_events_url":"https://api.github.com/users/BenjaminW3/received_events","type":"User","site_admin":false},"created_at":"2016-01-20T18:43:30Z","updated_at":"2016-01-20T18:43:30Z","body":"push!"}}