[Bug rtl-optimization/88922] Merge identical constants with different modes

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88922

--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> IIRC I had patches to do this.  My main target was vector float constants vs
> scalar float constants.

OK, this particular case (scalar vs vector) would probably be worth the hassle.