[Bug middle-end/90070] Add optimization for optimizing small integer values by fp integral constant

[meissner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90070

Michael Meissner <meissner at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |powerpc64le-gnu-linux,
                   |                            |powerpc64-gnu-linux
                 CC|                            |dje at gcc dot gnu.org,
                   |                            |meissner at gcc dot gnu.org,
                   |                            |segher at gcc dot gnu.org,
                   |                            |wschmidt at gcc dot gnu.org
               Host|                            |powerpc64le-gnu-linux,
                   |                            |powerpc64-gnu-linux
              Build|                            |powerpc64le-gnu-linux,
                   |                            |powerpc64-gnu-linux

--- Comment #1 from Michael Meissner <meissner at gcc dot gnu.org> ---
Obviously this is can speed up various machines, but there might be machines
where this is not optimal.

Now, in the full benchmark, there are many other things going on, but in
looking at the code, I figured this small optimization might help.