Merging r196391:

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r196391 | hliao | 2013-12-04 09:44:22 -0800 (Wed, 04 Dec 2013) | 5 lines

[X86] Check YMM31/ZMM31 as well

- No test case as there's no calling convention preserve YMM31/ZMM31 only


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llvm-svn: 196653