https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71659
Daniel Fruzynski <bugzi...@poradnik-webmastera.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bugzilla@poradnik-webmaster | |a.com --- Comment #4 from Daniel Fruzynski <bugzi...@poradnik-webmastera.com> --- This intrinsics was added in gcc 8. Initial implementation was buggy (see r85684) and was fixed in 8.2 However there is one more issue here: Intel Intrinsics Guide says that it should be available by including <immintrin.h>, however in gcc you need to include <xsaveintrin.h>. Additionally there are no defines for XFEATURE_ENABLED_MASK and possible output values.