Use a valid arch name in this triple.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@215726 91177308-0d34-0410-b5e6-96231b3b80d8
Move some code into a helper function. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@215731 91177308-0d34-0410-b5e6-96231b3b80d8
Objective-C. Do not warn if user is using property-dox syntax to name a
user provided setter name (as declared in @property attribute declaration).
rdar://18022762


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@215736 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Add ldexp intrinsic

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@215738 91177308-0d34-0410-b5e6-96231b3b80d8