Defined in 3 files as a function:
- sys/contrib/openzfs/include/os/freebsd/spl/sys/simd_x86.h, line 242 (as a function)
- sys/contrib/openzfs/include/os/linux/kernel/linux/simd_x86.h, line 572 (as a function)
- sys/contrib/openzfs/lib/libspl/include/sys/simd.h, line 404 (as a function)