[Bug rtl-optimization/89634] gmp-ecm miscompilation on s390x with -march=zEC12 -m64 -O2

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89634
Bug 89634 depends on bug 89497, which changed state.

Bug 89497 Summary: [8 Regression] ICE caused by Segmentation Fault when 
compiling cups 2.2.10 with LTO flags enabled
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89497

           What    |Removed                     |Added
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             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED