[Bug middle-end/109484] [Wrong Code][inline-asm] output operands overlap with output

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109484

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
So, use "=&r" (temp) (an early-clobber), that should fix it.