https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111096
--- Comment #6 from Richard Earnshaw <rearnsha at gcc dot gnu.org> --- For completeness. The AArch64 ABI lists 4 alternatives with respect to having a frame chain. When -fomit-frame-pointer is used, GCC implements this one: - It may require the frame pointer to address a valid frame record at all times, except that any subroutine may elect not to create a frame record
