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6a075f530a
We used to return PartialAlias if *either* variable being queried interacted with arguments or globals. AFAICT, we can change this to only returning MayAlias iff *both* variables being queried interacted with arguments or globals. Also, adding some basic functionality tests: some basic IPA tests, checking that we give conservative responses with arguments/globals thrown in the mix, and ensuring that we trace values through stores and loads. Note that saying that 'x' interacted with arguments or globals means that the Attributes of the StratifiedSet that 'x' belongs to has any bits set. Patch by George Burgess IV, thanks! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219122 91177308-0d34-0410-b5e6-96231b3b80d8
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