https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88265
--- Comment #2 from janus at gcc dot gnu.org --- (In reply to janus from comment #0) > Both test cases expect the assembly to contain a call to "_ZGVbN4v_sinf", > but what I see on my system is a call to "_ZGVdN8v_sinf". That was on a haswell machine. On a skylake CPU I even see: call _ZGVeN16v_sinf So apparently I get broader vector calls than expected. Note that this seems to happen only when configuring with --with-arch=... (e.g. haswell or skylake-avx512 ).