Raise ARM byval minimum size from 32 to 64, addressing a performance regression in mason.  rdar://problem/7662569
Raise ARM byval minimum size from 32 to 64, addressing a performance
regression in mason.  rdar://problem/7662569


git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@130444 91177308-0d34-0410-b5e6-96231b3b80d8

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