[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 #13 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Andreas Schwab from comment #12)
> Neither is clobbering a register.

Yes, as I have already reported in Comment #7.

But adding RSP to the output list will do exactly what we want, as reported in
PR117312 c#17.