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[X86] getTargetShuffleInputs - add KnownUndef/Zero output support
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Sun, 13 Oct 2019 17:03:02 +0000 (17:03 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Sun, 13 Oct 2019 17:03:02 +0000 (17:03 +0000)
commit386e47a61717e7613be2264dbe4c0f97b90d5ba6
treef27d03575572c1ed675fc8e50d44ced3dd990a75tree | snapshot
parenta35aed70c79dffa3376fbb496518a4f2dd259721commit | diff
[X86] getTargetShuffleInputs - add KnownUndef/Zero output support

Adjust SimplifyDemandedVectorEltsForTargetNode to use the known elts masks instead of recomputing it locally.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@374724 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/X86/X86ISelLowering.cpp diff | blob | history
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