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Commit 090e41d0 authored by Craig Topper's avatar Craig Topper
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[X86] Add 512-bit shuffle test cases for concatenating 128/256-bits with zeros... 

[X86] Add 512-bit shuffle test cases for concatenating 128/256-bits with zeros in the upper portion.

We should recognize this and just use a mov that will zero the upper bits.

llvm-svn: 324708
parent 7ac1c780
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