https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117330
--- Comment #8 from Frank Scheiner <frank.scheiner at web dot de> --- (In reply to Sam James from comment #7) > The testcase will be useful irrespective of the bisect result. richi added > the asserts to find testcases, even :) Yeah, I somehow did overlook that the addition of `gcc_unreachable ();` was just made in the very last commit to `gcc/tree-vect-slp.cc`.