[SimplifyCFG] Add final missing implications to isImpliedTrueByMatchingCmp.

Summary: eq imply [u|s]ge and [u|s]le are true.

Remove redundant logic by implementing isImpliedFalseByMatchingCmp(Pred1, Pred2)
as isImpliedTrueByMatchingCmp(Pred1, getInversePredicate(Pred2)).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@267177 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed