[Bug tree-optimization/96714] Failure to optimize sqrt*sqrt of same variable with ffast-math

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96714

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |WORKSFORME

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Huh.

(if (flag_unsafe_math_optimizations)
 /* Simplify sqrt(x) * sqrt(x) -> x.  */
 (simplify
  (mult (SQRT_ALL@1 @0) @1)
  (if (!HONOR_SNANS (type))
   @0))

and it works for me, with -ffast-math as you say.