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0c5336e71f
Patch to add support for target shuffle combining of X86ISD::VPERMV3 nodes, including support for detecting unary shuffles. This uncovered several issues with the X86ISD::VPERMV3 shuffle mask decoding of non-64 bit shuffle mask elements - the bit masking wasn't being correctly computed. Removed non-constant pool mask decode path as we have no way of testing it right now. Differential Revision: http://reviews.llvm.org/D17916 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262809 91177308-0d34-0410-b5e6-96231b3b80d8
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