[Bug middle-end/66770] [6 Regression] 252.eon in SPEC CPU 2000 failed to build

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66770

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
This looks like a dup of PR66759 to me which has a reduced testcase and shows
a bug in folding of REAL_CST - x CMP REAL_CST.