https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82418
Alexander Monakov <amonakov at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |amonakov at gcc dot gnu.org --- Comment #3 from Alexander Monakov <amonakov at gcc dot gnu.org> --- Marc, gcc code cannot be "several times" faster, it's likely that your test measured something else, can you share it? Clang's approach is also preferable because it doesn't tie up a temporary register to hold the immediate.