[Bug other/63426] [meta-bug] Issues found with -fsanitize=undefined

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63426
Bug 63426 depends on bug 84643, which changed state.

Bug 84643 Summary: gcc/optabs.c:6549:26: runtime error: load of value 131075, 
which is not a valid value for type 'memmodel'
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84643

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