https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100263
--- Comment #11 from Stefan Schulze Frielinghaus <stefansf at linux dot ibm.com> --- (In reply to Eric Botcazou from comment #10) > OK, then it's probably better to add it to: > > if (!is_a <scalar_int_mode> (reg_mode[regno], &old_mode) > || !MODES_OK_FOR_MOVE2ADD (mode, old_mode)) > return false; Ok, I will move the check up there. Currently running bootstrap+regtest on x86 as well as IBM Z.