[Bug rtl-optimization/127364] __builtin_assoc_barrier does not work for rtl

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127364

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
RTL never associates floating point (well, that was the case in the past when I
added PAREN_EXPR ...)