https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126320
--- Comment #6 from H.J. Lu <hjl.tools at gmail dot com> --- The final patch is at https://patchwork.sourceware.org/project/gcc/patch/came9rooupnbprvvkenpsrmy0x5z5rpdrobejsa8rx-kv9to...@mail.gmail.com/
