[Bug rtl-optimization/93658] [9/10 Regression] infinite loop building ghostscript and icu with -O3 on powerpc64le-linux-gnu

[bergner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93658

--- Comment #6 from Peter Bergner <bergner at gcc dot gnu.org> ---
So we are in an infinite loop in process_address() calling process_address_1().
 I've hacked in some code to ICE if we loop for too long and I'm currently
using creduce to minimize the test case.