[Bug tree-optimization/65425] code optimization leads to spurious FP exception

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65425

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Created attachment 35056
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35056&action=edit
incomplete patch