https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68316
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- As the comment says, you need to include <x86intrin.h> not <immintrin.h>