https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110311
--- Comment #5 from Jürgen Reuter <juergen.reuter at desy dot de> --- (In reply to anlauf from comment #4) > Jürgen, > > I'm afraid we need a reproducer. Or can you bisect the regression further? In principle, I could. But I just undid this commit of yours which is just one line in trans-array.cc, and that didn't solve the problem. So in the corresponding period of time between last Monday (June 12) and this week (June 19) there have not been any other commits to gcc/fortran or libgfortran, as far as I can say. So this seems to be a problem with tree-optimization, maybe.