https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98138
--- Comment #1 from Kewen Lin <linkw at gcc dot gnu.org> --- Similar case is x264_pixel_satd_8x4 in x264 https://github.com/mirror/x264/blob/4121277b40a667665d4eea1726aefdc55d12d110/common/pixel.c#L288