[Bug bootstrap/102681] [12 Regression] AArch64 bootstrap failure

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102681

--- Comment #23 from Richard Biener <rguenth at gcc dot gnu.org> ---
This should fix the missed CSE Andrew noticed, not sure if it is enough to
aovid the bogus diagnostic.