[Bug tree-optimization/86367] FRE1 tree pass deletes code in gcc.target/powerpc/nan128-1.c when long double is IEEE 128

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86367

--- Comment #11 from Segher Boessenkool <segher at gcc dot gnu.org> ---
If you use -fsignaling-nans everything works as expected.