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* [SystemZ] computeKnownBitsForTargetNode() / ComputeNumSignBitsForTargetNode()Jonas Paulsson2018-03-171-0/+384
Improve/implement these methods to improve DAG combining. This mainly concerns intrinsics. Some constant operands to SystemZISD nodes have been marked Opaque to avoid transforming back and forth between generic and target nodes infinitely. Review: Ulrich Weigand llvm-svn: 327765
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