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5f36b46bf0
This adds a basic (but important) use of @llvm.assume calls in ScalarEvolution. When SE is attempting to validate a condition guarding a loop (such as whether or not the loop count can be zero), this check should also include dominating assumptions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217348 91177308-0d34-0410-b5e6-96231b3b80d8