Implement OpenCL event_t as Clang builtin type, including event_t related OpenCL restrictions (OpenCL 1.2 spec 6.9)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172973 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 0 deletions

diff --git a/lib/CodeGen/CGExpr.cpp b/lib/CodeGen/CGExpr.cpp
index cdbd6e7bb7..9bef08b4a5 100644
--- a/lib/CodeGen/CGExpr.cpp
+++ b/lib/CodeGen/CGExpr.cpp
@@ -2639,6 +2639,8 @@ LValue CodeGenFunction::EmitCastLValue(const CastExpr *E) {
                                            ConvertType(ToType));
     return MakeAddrLValue(V, E->getType());
   }
+  case CK_ZeroToOCLEvent:
+    llvm_unreachable("NULL to OpenCL event lvalue cast is not valid");
   }
   
   llvm_unreachable("Unhandled lvalue cast kind?");