Fix an assertion failure caused by v1i64 in DAGCombiner Shrink.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209798 91177308-0d34-0410-b5e6-96231b3b80d8
Rename a test case to contain correct date info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209799 91177308-0d34-0410-b5e6-96231b3b80d8