[OpenCL] Update comments/diagnostics to refer to C++ for OpenCL

Clang doesn't implement OpenCL C++, change the comments to
reflect that.

Differential Revision: https://reviews.llvm.org/D64867



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@366421 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang/Basic/DiagnosticCommonKinds.td

@@ -132,8 +132,8 @@ def err_nullability_conflicting : Error<
 
 // OpenCL Section 6.8.g
 def err_opencl_unknown_type_specifier : Error<
-  "OpenCL %select{C|C++}0 version %1 does not support the '%2' "
-  "%select{type qualifier|storage class specifier}3">;
+  "%select{OpenCL C|C++ for OpenCL}0 version %1 does not support the "
+  "'%2' %select{type qualifier|storage class specifier}3">;
 
 def warn_unknown_attribute_ignored : Warning<
   "unknown attribute %0 ignored">, InGroup<UnknownAttributes>;
@@ -291,9 +291,9 @@ def note_mt_message : Note<"[rewriter] %0">;
 def warn_arcmt_nsalloc_realloc : Warning<"[rewriter] call returns pointer to GC managed memory; it will become unmanaged in ARC">;
 def err_arcmt_nsinvocation_ownership : Error<"NSInvocation's %0 is not safe to be used with an object with ownership other than __unsafe_unretained">;
 
-// OpenCL C++.
+// C++ for OpenCL.
 def err_openclcxx_not_supported : Error<
-  "'%0' is not supported in OpenCL C++">;
+  "'%0' is not supported in C++ for OpenCL">;
 
 // OpenMP
 def err_omp_more_one_clause : Error<

include/clang/Basic/DiagnosticParseKinds.td

@@ -1154,9 +1154,9 @@ def err_opencl_taking_function_address_parser : Error<
 def err_opencl_logical_exclusive_or : Error<
   "^^ is a reserved operator in OpenCL">;
 
-// OpenCL C++.
+// C++ for OpenCL.
 def err_openclcxx_virtual_function : Error<
-  "virtual functions are not supported in OpenCL C++">;
+  "virtual functions are not supported in C++ for OpenCL">;
 
 // OpenMP support.
 def warn_pragma_omp_ignored : Warning<

include/clang/Basic/LangOptions.def

@@ -197,8 +197,8 @@ LANGOPT(ShortEnums        , 1, 0, "short enum types")
 
 LANGOPT(OpenCL            , 1, 0, "OpenCL")
 LANGOPT(OpenCLVersion     , 32, 0, "OpenCL C version")
-LANGOPT(OpenCLCPlusPlus   , 1, 0, "OpenCL C++")
-LANGOPT(OpenCLCPlusPlusVersion     , 32, 0, "OpenCL C++ version")
+LANGOPT(OpenCLCPlusPlus   , 1, 0, "C++ for OpenCL")
+LANGOPT(OpenCLCPlusPlusVersion     , 32, 0, "C++ for OpenCL version")
 LANGOPT(NativeHalfType    , 1, 0, "Native half type support")
 LANGOPT(NativeHalfArgsAndReturns, 1, 0, "Native half args and returns")
 LANGOPT(HalfArgsAndReturns, 1, 0, "half args and returns")

include/clang/Basic/TokenKinds.def

@@ -252,9 +252,8 @@ PUNCTUATOR(caretcaret,            "^^")
 //   KEYNOMS18 - This is a keyword that must never be enabled under
 //               MSVC <= v18.
 //   KEYOPENCLC   - This is a keyword in OpenCL C
-//   KEYOPENCLCXX - This is a keyword in OpenCL C++
-//   KEYNOOPENCL  - This is a keyword that is not supported in OpenCL C
-//                  nor in OpenCL C++.
+//   KEYOPENCLCXX - This is a keyword in C++ for OpenCL
+//   KEYNOOPENCL  - This is a keyword that is not supported in OpenCL
 //   KEYALTIVEC - This is a keyword in AltiVec
 //   KEYZVECTOR - This is a keyword for the System z vector extensions,
 //                which are heavily based on AltiVec

include/clang/Frontend/LangStandards.def

@@ -166,7 +166,7 @@ LANGSTANDARD(opencl20, "cl2.0",
              OpenCL, "OpenCL 2.0",
              LineComment | C99 | Digraphs | HexFloat | OpenCL)
 LANGSTANDARD(openclcpp, "c++",
-             OpenCL, "OpenCL C++ 1.0",
+             OpenCL, "C++ for OpenCL",
              LineComment | CPlusPlus | CPlusPlus11 | CPlusPlus14 | CPlusPlus17 |
              Digraphs | HexFloat | OpenCL)
 

lib/Frontend/InitPreprocessor.cpp

@@ -411,7 +411,7 @@ static void InitializeStandardPredefinedMacros(const TargetInfo &TI,
       if (LangOpts.OpenCLCPlusPlusVersion == 100)
         Builder.defineMacro("__OPENCL_CPP_VERSION__", "100");
       else
-        llvm_unreachable("Unsupported OpenCL C++ version");
+        llvm_unreachable("Unsupported C++ version for OpenCL");
       Builder.defineMacro("__CL_CPP_VERSION_1_0__", "100");
     } else {
       // OpenCL v1.0 and v1.1 do not have a predefined macro to indicate the

lib/Parse/ParseDecl.cpp

@@ -3559,7 +3559,8 @@ void Parser::ParseDeclarationSpecifiers(DeclSpec &DS,
       isInvalid = DS.setFunctionSpecInline(Loc, PrevSpec, DiagID);
       break;
     case tok::kw_virtual:
-      // OpenCL C++ v1.0 s2.9: the virtual function qualifier is not supported.
+      // C++ for OpenCL does not allow virtual function qualifier, to avoid
+      // function pointers restricted in OpenCL v2.0 s6.9.a.
       if (getLangOpts().OpenCLCPlusPlus) {
         DiagID = diag::err_openclcxx_virtual_function;
         PrevSpec = Tok.getIdentifierInfo()->getNameStart();

lib/Sema/DeclSpec.cpp

@@ -596,7 +596,6 @@ bool DeclSpec::SetStorageClassSpec(Sema &S, SCS SC, SourceLocation Loc,
   // these storage-class specifiers.
   // OpenCL v1.2 s6.8 changes this to "The auto and register storage-class
   // specifiers are not supported."
-  // OpenCL C++ v1.0 s2.9 restricts register.
   if (S.getLangOpts().OpenCL &&
       !S.getOpenCLOptions().isEnabled("cl_clang_storage_class_specifiers")) {
     switch (SC) {

lib/Sema/SemaCast.cpp

@@ -285,7 +285,7 @@ Sema::BuildCXXNamedCast(SourceLocation OpLoc, tok::TokenKind Kind,
                                                 AngleBrackets));
 
   case tok::kw_dynamic_cast: {
-    // OpenCL C++ 1.0 s2.9: dynamic_cast is not supported.
+    // dynamic_cast is not supported in C++ for OpenCL.
     if (getLangOpts().OpenCLCPlusPlus) {
       return ExprError(Diag(OpLoc, diag::err_openclcxx_not_supported)
                        << "dynamic_cast");

lib/Sema/SemaDecl.cpp

@@ -6428,8 +6428,8 @@ NamedDecl *Sema::ActOnVariableDeclarator(
       }
     }
 
-    // OpenCL C++ 1.0 s2.9: the thread_local storage qualifier is not
-    // supported.  OpenCL C does not support thread_local either, and
+    // C++ for OpenCL does not allow the thread_local storage qualifier.
+    // OpenCL C does not support thread_local either, and
     // also reject all other thread storage class specifiers.
     DeclSpec::TSCS TSC = D.getDeclSpec().getThreadStorageClassSpec();
     if (TSC != TSCS_unspecified) {
@@ -7435,9 +7435,8 @@ void Sema::CheckVariableDeclarationType(VarDecl *NewVD) {
     // OpenCL C v2.0 s6.5.1 - Variables defined at program scope and static
     // variables inside a function can also be declared in the global
     // address space.
-    // OpenCL C++ v1.0 s2.5 inherits rule from OpenCL C v2.0 and allows local
-    // address space additionally.
-    // FIXME: Add local AS for OpenCL C++.
+    // C++ for OpenCL inherits rule from OpenCL C v2.0.
+    // FIXME: Adding local AS in C++ for OpenCL might make sense.
     if (NewVD->isFileVarDecl() || NewVD->isStaticLocal() ||
         NewVD->hasExternalStorage()) {
       if (!T->isSamplerT() &&
@@ -11590,7 +11589,7 @@ void Sema::AddInitializerToDecl(Decl *RealDecl, Expr *Init, bool DirectInit) {
       // do nothing
 
     // OpenCL v1.2 s6.5.3: __constant locals must be constant-initialized.
-    // This is true even in OpenCL C++.
+    // This is true even in C++ for OpenCL.
     } else if (VDecl->getType().getAddressSpace() == LangAS::opencl_constant) {
       CheckForConstantInitializer(Init, DclT);
 

lib/Sema/SemaDeclCXX.cpp

@@ -13272,7 +13272,7 @@ CheckOperatorNewDeleteTypes(Sema &SemaRef, const FunctionDecl *FnDecl,
                         diag::err_operator_new_delete_dependent_result_type)
     << FnDecl->getDeclName() << ExpectedResultType;
 
-  // OpenCL C++: the operator is valid on any address space.
+  // The operator is valid on any address space for OpenCL.
   if (SemaRef.getLangOpts().OpenCLCPlusPlus) {
     if (auto *PtrTy = ResultType->getAs<PointerType>()) {
       ResultType = RemoveAddressSpaceFromPtr(SemaRef, PtrTy);
@@ -13305,7 +13305,7 @@ CheckOperatorNewDeleteTypes(Sema &SemaRef, const FunctionDecl *FnDecl,
 
   // Check that the first parameter type is what we expect.
   if (SemaRef.getLangOpts().OpenCLCPlusPlus) {
-    // OpenCL C++: the operator is valid on any address space.
+    // The operator is valid on any address space for OpenCL.
     if (auto *PtrTy =
             FnDecl->getParamDecl(0)->getType()->getAs<PointerType>()) {
       FirstParamType = RemoveAddressSpaceFromPtr(SemaRef, PtrTy);

lib/Sema/SemaExprCXX.cpp

@@ -529,7 +529,7 @@ ExprResult Sema::BuildCXXTypeId(QualType TypeInfoType,
 ExprResult
 Sema::ActOnCXXTypeid(SourceLocation OpLoc, SourceLocation LParenLoc,
                      bool isType, void *TyOrExpr, SourceLocation RParenLoc) {
-  // OpenCL C++ 1.0 s2.9: typeid is not supported.
+  // typeid is not supported in OpenCL.
   if (getLangOpts().OpenCLCPlusPlus) {
     return ExprError(Diag(OpLoc, diag::err_openclcxx_not_supported)
                      << "typeid");
@@ -2656,8 +2656,8 @@ void Sema::DeclareGlobalNewDelete() {
   if (GlobalNewDeleteDeclared)
     return;
 
-  // OpenCL C++ 1.0 s2.9: the implicitly declared new and delete operators
-  // are not supported.
+  // The implicitly declared new and delete operators
+  // are not supported in OpenCL.
   if (getLangOpts().OpenCLCPlusPlus)
     return;
 

test/Driver/unknown-std.cl

@@ -10,7 +10,7 @@
 // CHECK-NEXT: note: use 'cl1.1' for 'OpenCL 1.1' standard
 // CHECK-NEXT: note: use 'cl1.2' for 'OpenCL 1.2' standard
 // CHECK-NEXT: note: use 'cl2.0' for 'OpenCL 2.0' standard
-// CHECK-NEXT: note: use 'c++' for 'OpenCL C++ 1.0' standard
+// CHECK-NEXT: note: use 'c++' for 'C++ for OpenCL' standard
 
 // Make sure that no other output is present.
 // CHECK-NOT: {{^.+$}}

test/Parser/opencl-cxx-keywords.cl

@@ -2,7 +2,7 @@
 // RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -verify -fsyntax-only -fexceptions -fcxx-exceptions
 
 // This test checks that various C++ and OpenCL C keywords are not available
-// in OpenCL C++, according to OpenCL C++ 1.0 Specification Section 2.9.
+// in OpenCL.
 
 // Test that exceptions are disabled despite passing -fcxx-exceptions.
 kernel void test_exceptions() {

test/Parser/opencl-cxx-virtual.cl

@@ -3,17 +3,17 @@
 // Test that virtual functions and abstract classes are rejected.
 class virtual_functions {
   virtual void bad1() {}
-  //expected-error@-1 {{virtual functions are not supported in OpenCL C++}}
+  //expected-error@-1 {{virtual functions are not supported in C++ for OpenCL}}
 
   virtual void bad2() = 0;
-  //expected-error@-1 {{virtual functions are not supported in OpenCL C++}}
+  //expected-error@-1 {{virtual functions are not supported in C++ for OpenCL}}
   //expected-error@-2 {{'bad2' is not virtual and cannot be declared pure}}
 };
 
 template <typename T>
 class X {
   virtual T f();
-  //expected-error@-1 {{virtual functions are not supported in OpenCL C++}}
+  //expected-error@-1 {{virtual functions are not supported in C++ for OpenCL}}
 };
 
 // Test that virtual base classes are allowed.

test/SemaOpenCLCXX/newdelete.cl

@@ -19,8 +19,8 @@ class B {
 // There are no global user-defined new operators at this point. Test that clang
 // rejects these gracefully.
 void test_default_new_delete(void *buffer, A **pa) {
-  A *a = new A;         // expected-error {{'default new' is not supported in OpenCL C++}}
-  delete a;             // expected-error {{'default delete' is not supported in OpenCL C++}}
+  A *a = new A;         // expected-error {{'default new' is not supported in C++ for OpenCL}}
+  delete a;             // expected-error {{'default delete' is not supported in C++ for OpenCL}}
   *pa = new (buffer) A; // expected-error {{use of placement new requires explicit declaration}}
 }
 
@@ -36,10 +36,10 @@ void *operator new[](size_t _s, void *ptr) noexcept {
 
 void test_new_delete(void *buffer, A **a, B **b) {
   *a = new A; // expected-error {{no matching function for call to 'operator new'}}
-  delete a;   // expected-error {{'default delete' is not supported in OpenCL C++}}
+  delete a;   // expected-error {{'default delete' is not supported in C++ for OpenCL}}
 
   *a = new A[20]; // expected-error {{no matching function for call to 'operator new[]'}}
-  delete[] *a;    // expected-error {{'default delete' is not supported in OpenCL C++}}
+  delete[] *a;    // expected-error {{'default delete' is not supported in C++ for OpenCL}}
 
   // User-defined placement new is supported.
   *a = new (buffer) A;

test/SemaOpenCLCXX/restricted.cl

@@ -1,9 +1,9 @@
 // RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -pedantic -verify -fsyntax-only
 
 // This test checks that various C/C++/OpenCL C constructs are not available in
-// OpenCL C++, according to OpenCL C++ 1.0 Specification Section 2.9.
+// C++ for OpenCL.
 
-// Test that typeid is not available in OpenCL C++.
+// Test that typeid is not available.
 namespace std {
   // Provide a dummy std::type_info so that we can use typeid.
   class type_info {
@@ -11,9 +11,9 @@ namespace std {
   };
 }
 __constant std::type_info int_ti = typeid(int);
-// expected-error@-1 {{'typeid' is not supported in OpenCL C++}}
+// expected-error@-1 {{'typeid' is not supported in C++ for OpenCL}}
 
-// Test that dynamic_cast is not available in OpenCL C++.
+// Test that dynamic_cast is not available in C++ for OpenCL.
 class A {
 public:
   int a;
@@ -25,17 +25,17 @@ class B : public A {
 
 B *test_dynamic_cast(B *p) {
   return dynamic_cast<B *>(p);
-  // expected-error@-1 {{'dynamic_cast' is not supported in OpenCL C++}}
+  // expected-error@-1 {{'dynamic_cast' is not supported in C++ for OpenCL}}
 }
 
 // Test storage class qualifiers.
 __constant _Thread_local int a = 1;
-// expected-error@-1 {{OpenCL C++ version 1.0 does not support the '_Thread_local' storage class specifier}}
+// expected-error@-1 {{C++ for OpenCL version 1.0 does not support the '_Thread_local' storage class specifier}}
 __constant __thread int b = 2;
-// expected-error@-1 {{OpenCL C++ version 1.0 does not support the '__thread' storage class specifier}}
+// expected-error@-1 {{C++ for OpenCL version 1.0 does not support the '__thread' storage class specifier}}
 kernel void test_storage_classes() {
   register int x;
-  // expected-error@-1 {{OpenCL C++ version 1.0 does not support the 'register' storage class specifier}}
+  // expected-error@-1 {{C++ for OpenCL version 1.0 does not support the 'register' storage class specifier}}
   thread_local int y;
-  // expected-error@-1 {{OpenCL C++ version 1.0 does not support the 'thread_local' storage class specifier}}
+  // expected-error@-1 {{C++ for OpenCL version 1.0 does not support the 'thread_local' storage class specifier}}
 }