[Bug tree-optimization/91723] [9/10 Regression] builtin fma is not optimized or vectorized as *+

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91723

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 46865
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46865&action=edit
gcc10-pr91723.patch

Untested fix.