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c1c5dcf069
shuffle lowering for integer vectors and share it from v4i32, v8i16, and v16i8 code paths. Ironically, the SSE2 v16i8 code for this is now better than the SSSE3! =] Will have to fix the SSSE3 code next to just using a single pshufb. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217240 91177308-0d34-0410-b5e6-96231b3b80d8
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