[_mm_prefetch] Returning previously deleted comment. No functional change.  It's unclear if the word FIXME is relevant given  that the macro behaves as intended.
[_mm_prefetch] Returning previously deleted comment.
No functional change.  It's unclear if the word FIXME is relevant given 
that the macro behaves as intended.



git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@201920 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang