https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69565
--- Comment #1 from Morwenn <morwenn29 at hotmail dot fr> --- The labels on the image are cropped, but each label corresponds to a specific distribution of the data. The full names are as follows: Shuffled Shuffled (16 values) All equal Ascending Descending Pipe organ Push front Push middle Ascending sawtooth Descending sawtooth Alternating Alternating (16 values) You can find the code generating the different distributions of data in the repository linked in the first post.