https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85992
--- Comment #3 from Marc Glisse <glisse at gcc dot gnu.org> --- (In reply to Matt Peddie from comment #2) > Is there a way to disable this behavior? -fno-builtin (or a more specific -fno-builtin-atanf) tells gcc to handle atanf as a regular function call, not as a standard function, so it should avoid constant folding (I didn't check).
