This test was originally added in, but it's marked xfail in NewGVN. I think this seems to fix it.
```
commit 7470fb01d00e559eb9bed5fe00ba7feeb427d5f9
Author: Jakub Staszak <jstaszak@apple.com>
Date: Fri Sep 2 14:57:37 2011 +0000
Compare type size instead of type _store_ size to make sure that BitCastInst
will be valid. This fixes PR10820.
llvm-svn: 139005
```