https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80326
--- Comment #1 from Sven Woop <m...@sven-woop.de> --- Ok that one is in the SVML and only supported by ICC, not by Clang: https://software.intel.com/sites/landingpage/IntrinsicsGuide/#techs=SVML&text=_mm512_trunc_ps There seem to be no SVML for GCC, thus please close this issue.