[OpenCL] Add support of cl_intel_device_side_avc_motion_estimation extension

Summary:
Documentation can be found at https://www.khronos.org/registry/OpenCL/extensions/intel/cl_intel_device_side_avc_motion_estimation.txt

Patch by Kristina Bessonova


Reviewers: Anastasia, yaxunl, shafik

Reviewed By: Anastasia

Subscribers: arphaman, sidorovd, AlexeySotkin, krisb, bader, asavonic, cfe-commits

Differential Revision: https://reviews.llvm.org/D51484

llvm-svn: 346392
diff --git a/clang/lib/AST/MicrosoftMangle.cpp b/clang/lib/AST/MicrosoftMangle.cpp
index 4e12011..c1568be 100644
--- a/clang/lib/AST/MicrosoftMangle.cpp
+++ b/clang/lib/AST/MicrosoftMangle.cpp
@@ -1985,6 +1985,11 @@
     Out << "PA";
     mangleArtificalTagType(TTK_Struct, "ocl_reserveid");
     break;
+#define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \
+  case BuiltinType::Id: \
+    mangleArtificalTagType(TTK_Struct, "ocl_" #ExtType); \
+    break;
+#include "clang/Basic/OpenCLExtensionTypes.def"
 
   case BuiltinType::NullPtr:
     Out << "$$T";