[Bug tree-optimization/79207] Special trigonometric simplification for solving cubics with -ffast-math

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79207

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |missed-optimization
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-01-24
     Ever confirmed|0                           |1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Basically fits the "dataflow" we do in the sincos pass, you'd have to pattern
match the add/mul sequence and relate the args to the cos calls of course.

Just in case anybody wants to work on this...