[Bug tree-optimization/117612] spaceship codegen is inferior to hand written operator when comparing doubles

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117612

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
For -O2 -ffast-math this is optimized partially in phiopt (turns that a != b ?
a < b : 0 into (a != b) & (a < b)) and reassoc, which simplifies the latter
into just a < b.