https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72828
--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to Giuseppe Ottaviano from comment #2) > Martin, I noticed you marked this as "[5/6/7 Regression]", but to be clear > the bug is present since at least 4.9 (the oldest version I tested). > It's only the attached reduction that is sensitive to compiler version. I > can provide repros for 4.9 and 5.1 as well. Ah, OK. However as 4.9 branch is already closed, we create Regression prefix just for active branches.