[OpenCL] Restrict various keywords in OpenCL C++ mode

Restrict the following keywords in the OpenCL C++ language mode,
according to Sections 2.2 & 2.9 of the OpenCL C++ 1.0 Specification.

 - dynamic_cast
 - typeid
 - register (already restricted in OpenCL C, update the diagnostic)
 - thread_local
 - exceptions (try/catch/throw)
 - access qualifiers read_only, write_only, read_write

Support the `__global`, `__local`, `__constant`, `__private`, and
`__generic` keywords in OpenCL C++.  Leave the unprefixed address
space qualifiers such as global available, i.e., do not mark them as
reserved keywords in OpenCL C++.  libclcxx provides explicit address
space pointer classes such as `global_ptr` and `global<T>` that are
implemented using the `__`-prefixed qualifiers.

Differential Revision: https://reviews.llvm.org/D46022

llvm-svn: 331874

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 20874fcf530..71c946442d7 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -2596,7 +2596,7 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
   // Set the flag to prevent the implementation from emitting device exception
   // handling code for those requiring so.
   Opts.OpenMPHostCXXExceptions = Opts.Exceptions && Opts.CXXExceptions;
-  if (Opts.OpenMPIsDevice && T.isNVPTX()) {
+  if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) {
     Opts.Exceptions = 0;
     Opts.CXXExceptions = 0;
   }