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d539147834
r222375 made some improvements to build_vector lowering of v4x32 and v4xf32 into an insertps, but it missed a case where: 1. A single extracted element is used twice. 2. The lower of the two non-zero indexes should be preserved, and the higher should be used for the dest mask. This caused a crash, since the source value for the insertps ends-up uninitialized. Differential Revision: http://reviews.llvm.org/D6377 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222635 91177308-0d34-0410-b5e6-96231b3b80d8
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