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* [Attributor] Reuse the IPConstantProp tests for the AttributorJohannes Doerfert2019-12-131-0/+117
The Attributor can, to some degree, do what IPConstantProp does. We can consequently use the corner cases already collected and tested for in the IPConstantProp tests to improve Attributor test coverage. This exposed various bugs fixed in previous Attributor patches. Not all functionality of IPConstantProp is available in AAValueSimplify and AAIsDead so some tests show that we cannot perform the expected constant propagation. Reviewers: fhahn, efriedma, mssimpso, davide Subscribers: bollu, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D69748
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