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2ee97f03a4
The PSHUFB mask decode routine used to assert if the mask index was out of range (<0 or greater than the size of the vector). The problem is, we can legitimately have a PSHUFB with a large index using intrinsics. The instruction only uses the least significant 4 bits. This change removes the assert and masks the index to match the instruction behaviour. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218242 91177308-0d34-0410-b5e6-96231b3b80d8
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