https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69442
ktkachov at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P3 |P1 CC| |ktkachov at gcc dot gnu.org --- Comment #1 from ktkachov at gcc dot gnu.org --- Does this occur for other optimisations levels? The modulo by a power of 2 expansion was changed for arm for GCC 6 but that was for signed values, whereas the testcase uses unsigned variables and the modulo operation is not by a power of 2...