[Bug tree-optimization/86855] REGRESSON: [8.0] -Ofast optimize away mm_set_ps(0.0f,0.0f,-0.0f,0.0f);

[glisse at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86855

--- Comment #2 from Marc Glisse <glisse at gcc dot gnu.org> ---
More precisely -ffast-math implies -fno-signed-zeros.