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d28e4c1735
target hook. This patch teaches the compiler that: rX, rY = VMOVRRD dZ is the same as: rX = EXTRACT_SUBREG dZ, ssub_0 rY = EXTRACT_SUBREG dZ, ssub_1 <rdar://problem/12702965> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216132 91177308-0d34-0410-b5e6-96231b3b80d8
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