Add support for builtin astype:
__builtin_astype(): Used to reinterpreted as another data type of the same size using for both scalar and vector data types.
Added test case.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132612 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Serialization/ASTReaderStmt.cpp b/lib/Serialization/ASTReaderStmt.cpp
index 918db7e..f3f67a7 100644
--- a/lib/Serialization/ASTReaderStmt.cpp
+++ b/lib/Serialization/ASTReaderStmt.cpp
@@ -189,7 +189,7 @@
     void VisitOpaqueValueExpr(OpaqueValueExpr *E);
     
     // CUDA Expressions
-    void VisitCUDAKernelCallExpr(CUDAKernelCallExpr *E);
+    void VisitCUDAKernelCallExpr(CUDAKernelCallExpr *E);    
   };
 }
 
@@ -2000,6 +2000,10 @@
     case EXPR_CUDA_KERNEL_CALL:
       S = new (Context) CUDAKernelCallExpr(*Context, Empty);
       break;
+        
+    case EXPR_ASTYPE:
+      S = new (Context) AsTypeExpr(Empty);
+      break;
     }
     
     // We hit a STMT_STOP, so we're done with this expression.