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3 Commits

Author SHA1 Message Date
Simon Pilgrim
7a9fc8e31d [TargetLowering] Add ISD::OR + ISD::XOR handling to SimplifyDemandedVectorElts 
Differential Revision: https://reviews.llvm.org/D55600

llvm-svn: 349264
 2018-12-15 11:36:36 +00:00
Simon Pilgrim
73c1689148 Regenerate knownbits test. NFCI. 
A future SimplifyDemandedBits patch will affect this code and I want to ensure the codegen diff is obvious.

llvm-svn: 348925
 2018-12-12 13:21:03 +00:00
Jonas Paulsson
3203edf16f [SystemZ] computeKnownBitsForTargetNode() / ComputeNumSignBitsForTargetNode() 
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
 2018-03-17 08:32:12 +00:00