[Bug c/106264] [10/11/12/13 Regression] spurious -Wunused-value on a folded frexp, modf, and remquo calls with unused result

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106264

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Martin Sebor from comment #2)
> The most likely culprit is r261705.

Yes this part:

(fold_builtin_n): Avoid setting TREE_NO_WARNING.