[Bug tree-optimization/83661] sincos does not handle sin(2x)

[prathamesh3492 at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83661

--- Comment #3 from prathamesh3492 at gcc dot gnu.org ---
Oh, I thought sincos simultaneously calculated values of sin and cos ?
If that's not the case, then I wonder how is sincos transform itself beneficial
?

Thanks,
Prathamesh