[X86][SSE] Added target shuffle combine tests for byte shift/rotates (PSLLDQ/PSRLDQ/PALIGNR)
[X86][SSE] Added target shuffle combine tests for byte shift/rotates (PSLLDQ/PSRLDQ/PALIGNR)

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@272392 91177308-0d34-0410-b5e6-96231b3b80d8

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