[Bug c/106529] existence of sincos is assumed

[tk at giga dot or.at]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106529

--- Comment #1 from Thomas Klausner <tk at giga dot or.at> ---
Created attachment 53412
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53412&action=edit
.i file from save-temps