https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97744
--- Comment #2 from seurer at gcc dot gnu.org --- This particular test has been problematic before. For example, see pr83497. Previously the change in output was from some floating point operations being reordered causing a minute rounding change but it was actually OK. By adding -fno-associative-math or removing -ffast-math it will work. We are probably just going to go with that.