[Bug middle-end/109585] Carla/sord miscompiled with -O2 on ARM64 (inlining issue)

[hector at marcansoft dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109585

--- Comment #11 from Hector Martin <hector at marcansoft dot com> ---
Giving a nonzero size to the `ZixBTreeIterFrame stack[]` member also avoids the
segfault, so this might be a flexible array member thing.