[Bug middle-end/90356] Missed optimization for variables initialized to 0.0

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90356

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |missed-optimization
           Severity|normal                      |enhancement

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Or 0.0+a+0.0 to just 0.0+a.

I don't know enough about fp rules when a is -0.0 to understand the rules here
if this is valid optimization or not.