https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127031
--- Comment #1 from ptomsich at gcc dot gnu.org --- Trigger matrix (cross cc1 from master r17-3520-g55d83279840, aarch64 host, configured --target=avr --enable-languages=c): - avr2 (no MUL) -O1 / -O2: ICE - avr2 -Os: OK (emits __mulsi3) - avr51 (hardware MUL) -O1/-O2/-Os: OK - constants 0xaaab, 0x5555: ICE - constants 0x101, 7, 10: OK Only dense constants, whose shift-add synthesis needs many operations, are affected.
