[Bug c/50459] alignof doesn't work on plain old constant, works with expressions containing it

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50459
Bug 50459 depends on bug 61137, which changed state.

Bug 61137 Summary: [5 regression] FAIL: gcc.target/ia64/small-addr-1.c (test 
for excess errors)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61137

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