https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93648
--- Comment #4 from Roman Zhikharevich <rzhikharev...@yandex-team.ru> --- Sorry, I forgot to mention that this is triggered with -O2, on x86-64. > First off the comma is ignored in inline-asm. This doesn't seem to be true because it changes the generated assembly.