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ARM recently gained DPair, DTriple, and DQuad register classes. Update copyPhysReg() to handle copies in these register classes. No test case, it is difficult to make the register allocator emit the odd copies reliably. The missing DPair copy caused a failure on partialsums in the nightly test suite. <rdar://problem/11147997> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153686 91177308-0d34-0410-b5e6-96231b3b80d8
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