Merging r299346:

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r299346 | ctopper | 2017-04-02 20:41:29 -0700 (Sun, 02 Apr 2017) | 3 lines

[AVX-512] Fix some intrinsic macros that use the wrong macro parameter names and don't have parentheses around them.

Thanks to Matthew Barr for reporting this issue.
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llvm-svn: 299404