[Bug middle-end/91858] [9/10 Regression] Compile time hog w/ complex float trigonometric functions

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91858

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
PR88074?  Probably should be reported to gmp/mpfr/mpc instead (or as well).
See PR88074 for a way to create a simpler testcase for them.