[Dominators] Add NearestCommonDominator verification
Summary:
This patch adds another verification function for checking correctness of findNearestCommonDominator.
For every edge from U to V in the input graph, `NCD(U, V) == IDom(V) or V` -- the new function checks this condition.
Reviewers: dberlin, sanjoy, chandlerc
Reviewed By: dberlin
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D34575
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306893
91177308-0d34-0410-b5e6-
96231b3b80d8
OSDN Git Service
