https://gcc.gnu.org/bugzilla/show_bug.cgi?id=29776
Dávid Bolvanský <david.bolvansky at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |david.bolvansky at gmail dot com --- Comment #21 from Dávid Bolvanský <david.bolvansky at gmail dot com> --- long long foo (int x) { return __builtin_ctz (x); } still produces foo(int): xor eax, eax tzcnt eax, edi cdqe ret instead of foo(int): # @foo(int) tzcnt eax, edi ret