Summary:_mm_mfence() added to custom routines Reviewer: kkalyanj, pass
Summary:_mm_mfence() added to custom routines
Reviewer: kkalyanj, pass

Additional reviewers: 

Details: 


git-svn-id: cdea853903caa9ee65c80dcf130ba33bcefa680f@44 f364fc6c-7e41-0410-b16c-eb8c68fe7df8

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