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(parent: c177c3a) | patch
[SelectionDAG] Optional handling of UNDEF elements in matchBinaryPredicate (part...
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Wed, 19 Dec 2018 14:09:09 +0000 (14:09 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Wed, 19 Dec 2018 14:09:09 +0000 (14:09 +0000)
commit47ff0431e9337af82b1cf282af1e7f78720b097a
tree87d5501c5632014088670fd73e06caca900f46aatree | snapshot
parentc177c3a5a998ae24199c773e4a37e841ebb61677commit | diff
[SelectionDAG] Optional handling of UNDEF elements in matchBinaryPredicate (part 1 of 2)

Now that SimplifyDemandedBits/SimplifyDemandedVectorElts is simplifying vector elements, we're seeing more constant BUILD_VECTOR containing undefs.

This patch provides opt-in support for UNDEF elements in matchBinaryPredicate, passing NULL instead of the result ConstantSDNode* argument.

Differential Revision: https://reviews.llvm.org/D55822

llvm-svn: 349628
llvm/include/llvm/CodeGen/SelectionDAGNodes.h diff | blob | history
llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp diff | blob | history
Domain: System / Toolchain;