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

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63426
Bug 63426 depends on bug 64914, which changed state.

Bug 64914 Summary: [UBSAN/bootstrap-ubsan] With -g3: libiberty/md5.c:336:7: runtime error: load of misaligned address  for type 'const md5_uint32', which requires 4 byte alignment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64914

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