Introduce arm_acle.h supporting existing LLVM builtin intrinsics

Summary: This patch introduces ACLE header file, implementing extensions that can be directly mapped to existing Clang intrinsics. It implements for both AArch32 and AArch64.

Reviewers: t.p.northover, compnerd, rengolin

Reviewed By: compnerd, rengolin

Subscribers: rnk, echristo, compnerd, aemerson, mroth, cfe-commits

Differential Revision: http://reviews.llvm.org/D4296

llvm-svn: 211962
diff --git a/clang/lib/Headers/CMakeLists.txt b/clang/lib/Headers/CMakeLists.txt
index 23b2446..edee7d7 100644
--- a/clang/lib/Headers/CMakeLists.txt
+++ b/clang/lib/Headers/CMakeLists.txt
@@ -1,6 +1,7 @@
 set(files
   altivec.h
   ammintrin.h
+  arm_acle.h
   avxintrin.h
   avx2intrin.h
   bmiintrin.h