https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112935
--- Comment #9 from Xi Ruoyao <xry111 at gcc dot gnu.org> --- And in fact the optimal code for int t(int x, _Bool y) { return x * y; } should be maskeqz $r4,$r4,$r5 jr $r1 like int t(int x, _Bool y) { return y ? x : 0; }