https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115056
--- Comment #8 from Dale Weiler <weilercdale at gmail dot com> --- Yeah, you can add another `while (j < 64) block.as_bytes[j] = 0;` to the end if you want. I really should've done a better job reducing it so as not to create uninitialized memory. You can also just memset the block at the start to all zeros if you want.
