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d8bfde0c6a
In r176898 I updated the cost model to reflect the fact that sext/zext/cast on v8i32 <-> v8i8 and v16i32 <-> v16i8 are expensive. This test case is so that we make sure to update the cost model once we fix CodeGen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176955 91177308-0d34-0410-b5e6-96231b3b80d8
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