In case anyone is wondering why this showed up right now, it's because tbrowbdidnso was reading the 'examples of unexpected mathematical images' article [1] and came across the one about FPU-dependent aliasing artifacts [2].

[1] https://news.ycombinator.com/item?id=13736568

[2] http://www.cgl.uwaterloo.ca/csk/projects/alias/