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Function @test3c should check that the DAGCombiner is able to fold a pair of shuffles into a new shuffle with a permute mask of <6,7,2,3>. However, one of the shuffles in @test3c had a wrong permute mask; this prevented the DAGCombiner from folding the shuffles into the expected result. Now that the shuffle mask is fixed, the backend correctly folds the two shuffles in function @test3c into a single movhlps instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213451 91177308-0d34-0410-b5e6-96231b3b80d8
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