https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68804
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target| |x86_64-*-* Status|UNCONFIRMED |RESOLVED Known to work| |5.3.0 Resolution|--- |FIXED Target Milestone|--- |5.3 Known to fail| |5.2.0 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- Missing #include <iostream> #include <x86intrin.h> includes for the testcase. Works fine for me with -O3 and GCC 5.3. Confirmed with GCC 5.2 though.