[OpenCL] Reject virtual functions for OpenCL C++

Differential Revision: https://reviews.llvm.org/D45873

llvm-svn: 330579

2 files changed, 10 insertions, 1 deletions

diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index f904e65e724..c516738fb7a 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -1927,6 +1927,7 @@ void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
     Opts.setDefaultFPContractMode(LangOptions::FPC_On);
     Opts.NativeHalfType = 1;
     Opts.NativeHalfArgsAndReturns = 1;
+    Opts.OpenCLCPlusPlus = Opts.CPlusPlus;
     // Include default header file for OpenCL.
     if (Opts.IncludeDefaultHeader) {
       PPOpts.Includes.push_back("opencl-c.h");
diff --git a/clang/lib/Parse/ParseDecl.cpp b/clang/lib/Parse/ParseDecl.cpp
index f17212d9b3a..ef3d8c39b7d 100644
--- a/clang/lib/Parse/ParseDecl.cpp
+++ b/clang/lib/Parse/ParseDecl.cpp
@@ -3466,7 +3466,15 @@ void Parser::ParseDeclarationSpecifiers(DeclSpec &DS,
       isInvalid = DS.setFunctionSpecInline(Loc, PrevSpec, DiagID);
       break;
     case tok::kw_virtual:
-      isInvalid = DS.setFunctionSpecVirtual(Loc, PrevSpec, DiagID);
+      // OpenCL C++ v1.0 s2.9: the virtual function qualifier is not supported.
+      if (getLangOpts().OpenCLCPlusPlus) {
+        DiagID = diag::err_openclcxx_virtual_function;
+        PrevSpec = Tok.getIdentifierInfo()->getNameStart();
+        isInvalid = true;
+      }
+      else {
+        isInvalid = DS.setFunctionSpecVirtual(Loc, PrevSpec, DiagID);
+      }
       break;
     case tok::kw_explicit:
       isInvalid = DS.setFunctionSpecExplicit(Loc, PrevSpec, DiagID);