[Bug tree-optimization/91250] Missed optimization: is not used vfnmsub213ss

[zamazan4ik at tut dot by]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91250

--- Comment #2 from Alexander Zaitsev <zamazan4ik at tut dot by> ---
But on this example all is fine:


float foo(float a, float b, float c)
{
    return -a * -b - c;
}