https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65306
--- Comment #10 from Uroš Bizjak <ubizjak at gmail dot com> --- Assembler support for interunit movq (e.g. "movq %rax, %xmm0") is detected with configure, and HAVE_AS_IX86_INTERUNIT_MOVQ flag is set accordingly. It looks that configure checks different assembler than the one used to compile the library.
