https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78390
--- Comment #5 from Dominik Vogt <vogt at linux dot vnet.ibm.com> --- (In reply to Andreas Schwab from comment #3) > Does it help to revert r242414? Yep. r242414 has introduced the problem. (Happens only with --with-arch=zEC12.)