alt Hacker NewsWTF, Intel? This is reminding me of a very similar bug from 9 years ago: https://news.ycombinator.com/item?id=14630183
Clearly Intel needs to do far more extensive regression-testing, with things like demoscene productions --- especially the extremely size-optimised ones that can exercise the edge-cases much better than the usual "compiler slop".
Intel knowingly sold defective cpus and denied the defect until reports hit critical mass. I don’t think they care.