[Bug middle-end/117359] Stack pointer modifications in asm are not flagged in crtl->sp_is_unchanging

[ubizjak at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117359

--- Comment #11 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Andreas Schwab from comment #10)
> If you change memory, then that memory needs to be in the output/clobber
> list.

Adding redzone memory to output is not effective, please see PR117312 for the
experiment.