getEDInfo(), in which case this code would dereference
NULL. EDInst can already handle NULL info, so avoid
the dereference and pass NULL through.
Reviewed by Sean Callanan
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128904 91177308-0d34-0410-b5e6-96231b3b80d8