[OpenCL] Add supported OpenCL extensions to target info.

Add supported OpenCL extensions to target info. It serves as default values to save the users of the burden setting each supported extensions and optional core features in command line.

Re-commit after fixing build error due to missing override attribute.

Differential Revision: http://reviews.llvm.org/D19484

llvm-svn: 269670

clang/include/clang/Basic/DiagnosticParseKinds.td

@@ -926,6 +926,10 @@ def warn_pragma_expected_enable_disable : Warning<
   "expected 'enable' or 'disable' - ignoring">, InGroup<IgnoredPragmas>;
 def warn_pragma_unknown_extension : Warning<
   "unknown OpenCL extension %0 - ignoring">, InGroup<IgnoredPragmas>;
+def warn_pragma_unsupported_extension : Warning<
+  "unsupported OpenCL extension %0 - ignoring">, InGroup<IgnoredPragmas>;
+def warn_pragma_extension_is_core : Warning<
+  "OpenCL extension %0 is core feature or supported optional core feature - ignoring">, InGroup<IgnoredPragmas>;
 
 // OpenCL errors.
 def err_opencl_taking_function_address_parser : Error<

clang/include/clang/Basic/LangOptions.h

@@ -160,18 +160,6 @@ public:
     fp_contract(LangOpts.DefaultFPContract) {}
 };
 
-/// \brief OpenCL volatile options
-class OpenCLOptions {
-public:
-#define OPENCLEXT(nm)  unsigned nm : 1;
-#include "clang/Basic/OpenCLExtensions.def"
-
-  OpenCLOptions() {
-#define OPENCLEXT(nm)   nm = 0;
-#include "clang/Basic/OpenCLExtensions.def"
-  }
-};
-
 /// \brief Describes the kind of translation unit being processed.
 enum TranslationUnitKind {
   /// \brief The translation unit is a complete translation unit.

clang/include/clang/Basic/OpenCLExtensions.def

@@ -11,25 +11,67 @@
 //
 //===----------------------------------------------------------------------===//
 
-// OpenCL 1.1.
-OPENCLEXT(cl_khr_fp64)
-OPENCLEXT(cl_khr_int64_base_atomics)
-OPENCLEXT(cl_khr_int64_extended_atomics)
-OPENCLEXT(cl_khr_fp16)
-OPENCLEXT(cl_khr_gl_sharing)
-OPENCLEXT(cl_khr_gl_event)
-OPENCLEXT(cl_khr_d3d10_sharing)
-OPENCLEXT(cl_khr_global_int32_base_atomics)
-OPENCLEXT(cl_khr_global_int32_extended_atomics)
-OPENCLEXT(cl_khr_local_int32_base_atomics)
-OPENCLEXT(cl_khr_local_int32_extended_atomics)
-OPENCLEXT(cl_khr_byte_addressable_store)
-OPENCLEXT(cl_khr_3d_image_writes)
+// Macro OPENCLEXT or OPENCLEXT_INTERNAL can be defined to enumerate the
+// OpenCL extensions listed in this file.
+//
+// If the extensions are to be enumerated without the supported OpenCL version,
+// define OPENCLEXT(ext) where ext is the name of the extension.
+//
+// If the extensions are to be enumerated with supported OpenCL version,
+// define OPENCLEXT_INTERNAL(ext, avail, core) where
+//   ext - name of the extension or optional core feature.
+//   avail - minimum OpenCL version supporting it.
+//   core - minimum OpenCL version when the extension becomes optional core
+//          feature or core feature. ~0U indicates not a core feature or an
+//          optional core feature.
 
-// OpenCL 2.0
-OPENCLEXT(cl_khr_gl_msaa_sharing)
+#ifndef OPENCLEXT_INTERNAL
+#ifndef OPENCLEXT
+#pragma error "macro OPENCLEXT or OPENCLEXT_INTERNAL is required"
+#else
+#define OPENCLEXT_INTERNAL(ext, ...) OPENCLEXT(ext)
+#endif // OPENCLEXT
+#endif // OPENCLEXT_INTERNAL
+
+// OpenCL 1.0.
+OPENCLEXT_INTERNAL(cl_khr_3d_image_writes, 100, 120)
+OPENCLEXT_INTERNAL(cl_khr_byte_addressable_store, 100, 110)
+OPENCLEXT_INTERNAL(cl_khr_fp16, 100, ~0U)
+OPENCLEXT_INTERNAL(cl_khr_fp64, 100, 120)
+OPENCLEXT_INTERNAL(cl_khr_global_int32_base_atomics, 100, 110)
+OPENCLEXT_INTERNAL(cl_khr_global_int32_extended_atomics, 100, 110)
+OPENCLEXT_INTERNAL(cl_khr_gl_sharing, 100, ~0U)
+OPENCLEXT_INTERNAL(cl_khr_icd, 100, ~0U)
+OPENCLEXT_INTERNAL(cl_khr_local_int32_base_atomics, 100, 110)
+OPENCLEXT_INTERNAL(cl_khr_local_int32_extended_atomics, 100, 110)
+
+// OpenCL 1.1.
+OPENCLEXT_INTERNAL(cl_khr_d3d10_sharing, 110, ~0U)
+OPENCLEXT_INTERNAL(cl_khr_gl_event, 110, ~0U)
+OPENCLEXT_INTERNAL(cl_khr_int64_base_atomics, 110, ~0U)
+OPENCLEXT_INTERNAL(cl_khr_int64_extended_atomics, 110, ~0U)
+
+// OpenCL 1.2.
+OPENCLEXT_INTERNAL(cl_khr_d3d11_sharing, 120, ~0U)
+OPENCLEXT_INTERNAL(cl_khr_depth_images, 120, ~0U)
+OPENCLEXT_INTERNAL(cl_khr_dx9_media_sharing, 120, ~0U)
+OPENCLEXT_INTERNAL(cl_khr_gl_depth_images, 120, ~0U)
+OPENCLEXT_INTERNAL(cl_khr_spir, 120, ~0U)
+
+// OpenCL 2.0.
+OPENCLEXT_INTERNAL(cl_khr_egl_event, 200, ~0U)
+OPENCLEXT_INTERNAL(cl_khr_egl_image, 200, ~0U)
+OPENCLEXT_INTERNAL(cl_khr_gl_msaa_sharing, 200, ~0U)
+OPENCLEXT_INTERNAL(cl_khr_initialize_memory, 200, ~0U)
+OPENCLEXT_INTERNAL(cl_khr_srgb_image_writes, 200, ~0U)
+OPENCLEXT_INTERNAL(cl_khr_subgroups, 200, ~0U)
+OPENCLEXT_INTERNAL(cl_khr_terminate_context, 200, ~0U)
 
 // Clang Extensions.
-OPENCLEXT(cl_clang_storage_class_specifiers)
+OPENCLEXT_INTERNAL(cl_clang_storage_class_specifiers, 100, ~0U)
 
+#undef OPENCLEXT_INTERNAL
+
+#ifdef OPENCLEXT
 #undef OPENCLEXT
+#endif

clang/include/clang/Basic/OpenCLOptions.h

@@ -0,0 +1,68 @@
+//===--- OpenCLOptions.h ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// \brief Defines the clang::OpenCLOptions class.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_BASIC_OPENCLOPTIONS_H
+#define LLVM_CLANG_BASIC_OPENCLOPTIONS_H
+
+#include <string>
+#include <vector>
+
+namespace clang {
+
+/// \brief OpenCL supported extensions and optional core features
+class OpenCLOptions {
+public:
+#define OPENCLEXT(nm) unsigned nm : 1;
+#include "clang/Basic/OpenCLExtensions.def"
+
+  OpenCLOptions() {
+#define OPENCLEXT(nm)   nm = 0;
+#include "clang/Basic/OpenCLExtensions.def"
+  }
+
+  // Enable all options.
+  void setAll() {
+#define OPENCLEXT(nm)   nm = 1;
+#include "clang/Basic/OpenCLExtensions.def"
+  }
+
+  // Is supported with OpenCL version \p OCLVer.
+#define OPENCLEXT_INTERNAL(Ext, Avail, ...) \
+  bool is_##Ext##_supported(unsigned OCLVer) const { \
+    return Ext && OCLVer >= Avail; \
+  }
+#include "clang/Basic/OpenCLExtensions.def"
+
+
+  // Is supported OpenCL extension with OpenCL version \p OCLVer.
+  // For supported optional core feature, return false.
+#define OPENCLEXT_INTERNAL(Ext, Avail, Core) \
+  bool is_##Ext##_supported_extension(unsigned CLVer) const { \
+    return is_##Ext##_supported(CLVer) && (Core == ~0U || CLVer < Core); \
+  }
+#include "clang/Basic/OpenCLExtensions.def"
+
+  // Is supported OpenCL core features with OpenCL version \p OCLVer.
+  // For supported extension, return false.
+#define OPENCLEXT_INTERNAL(Ext, Avail, Core) \
+  bool is_##Ext##_supported_core(unsigned CLVer) const { \
+    return is_##Ext##_supported(CLVer) && Core != ~0U && CLVer >= Core; \
+  }
+#include "clang/Basic/OpenCLExtensions.def"
+
+};
+
+}  // end namespace clang
+
+#endif

clang/include/clang/Basic/TargetInfo.h

@@ -969,6 +969,19 @@ public:
   /// \brief Whether target allows to overalign ABI-specified prefered alignment
   virtual bool allowsLargerPreferedTypeAlignment() const { return true; }
 
+  /// \brief Set supported OpenCL extensions and optional core features.
+  virtual void setSupportedOpenCLOpts() {}
+
+  /// \brief Get supported OpenCL extensions and optional core features.
+  OpenCLOptions &getSupportedOpenCLOpts() {
+    return getTargetOpts().SupportedOpenCLOptions;
+  }
+
+  /// \brief Get const supported OpenCL extensions and optional core features.
+  const OpenCLOptions &getSupportedOpenCLOpts() const {
+      return getTargetOpts().SupportedOpenCLOptions;
+  }
+
 protected:
   virtual uint64_t getPointerWidthV(unsigned AddrSpace) const {
     return PointerWidth;

clang/include/clang/Basic/TargetOptions.h

@@ -17,6 +17,7 @@
 
 #include <string>
 #include <vector>
+#include "clang/Basic/OpenCLOptions.h"
 
 namespace clang {
 
@@ -54,6 +55,9 @@ public:
   std::vector<std::string> Features;
 
   std::vector<std::string> Reciprocals;
+
+  /// Supported OpenCL extensions and optional core features.
+  OpenCLOptions SupportedOpenCLOptions;
 };
 
 }  // end namespace clang

clang/lib/Basic/Targets.cpp

@@ -1999,17 +1999,6 @@ public:
       Builder.defineMacro("__HAS_FMAF__");
     if (hasLDEXPF)
       Builder.defineMacro("__HAS_LDEXPF__");
-    if (hasFP64 && Opts.OpenCL)
-      Builder.defineMacro("cl_khr_fp64");
-    if (Opts.OpenCL) {
-      if (GPU >= GK_NORTHERN_ISLANDS) {
-        Builder.defineMacro("cl_khr_byte_addressable_store");
-        Builder.defineMacro("cl_khr_global_int32_base_atomics");
-        Builder.defineMacro("cl_khr_global_int32_extended_atomics");
-        Builder.defineMacro("cl_khr_local_int32_base_atomics");
-        Builder.defineMacro("cl_khr_local_int32_extended_atomics");
-      }
-    }
   }
 
   BuiltinVaListKind getBuiltinVaListKind() const override {
@@ -2097,6 +2086,31 @@ public:
 
     return true;
   }
+
+   void setSupportedOpenCLOpts() override {
+     auto &Opts = getSupportedOpenCLOpts();
+     Opts.cl_clang_storage_class_specifiers = 1;
+     Opts.cl_khr_gl_sharing = 1;
+     Opts.cl_khr_gl_event = 1;
+     Opts.cl_khr_d3d10_sharing = 1;
+     Opts.cl_khr_subgroups = 1;
+
+     if (hasFP64)
+       Opts.cl_khr_fp64 = 1;
+     if (GPU >= GK_NORTHERN_ISLANDS) {
+       Opts.cl_khr_byte_addressable_store = 1;
+       Opts.cl_khr_global_int32_base_atomics = 1;
+       Opts.cl_khr_global_int32_extended_atomics = 1;
+       Opts.cl_khr_local_int32_base_atomics = 1;
+       Opts.cl_khr_local_int32_extended_atomics = 1;
+     }
+     if (GPU >= GK_SOUTHERN_ISLANDS)
+       Opts.cl_khr_fp16 = 1;
+       Opts.cl_khr_int64_base_atomics = 1;
+       Opts.cl_khr_int64_extended_atomics = 1;
+       Opts.cl_khr_3d_image_writes = 1;
+       Opts.cl_khr_gl_msaa_sharing = 1;
+  }
 };
 
 const Builtin::Info AMDGPUTargetInfo::BuiltinInfo[] = {
@@ -2716,6 +2730,10 @@ public:
   bool hasSjLjLowering() const override {
     return true;
   }
+
+  void setSupportedOpenCLOpts() override {
+    getSupportedOpenCLOpts().setAll();
+  }
 };
 
 bool X86TargetInfo::setFPMath(StringRef Name) {
@@ -7858,6 +7876,12 @@ public:
   CallingConv getDefaultCallingConv(CallingConvMethodType MT) const override {
     return CC_SpirFunction;
   }
+
+  void setSupportedOpenCLOpts() override {
+    // Assume all OpenCL extensions and optional core features are supported
+    // for SPIR since it is a generic target.
+    getSupportedOpenCLOpts().setAll();
+  }
 };
 
 class SPIR32TargetInfo : public SPIRTargetInfo {
@@ -8458,5 +8482,7 @@ TargetInfo::CreateTargetInfo(DiagnosticsEngine &Diags,
   if (!Target->handleTargetFeatures(Opts->Features, Diags))
     return nullptr;
 
+  Target->setSupportedOpenCLOpts();
+
   return Target.release();
 }

clang/lib/Frontend/InitPreprocessor.cpp

@@ -938,6 +938,15 @@ static void InitializePredefinedMacros(const TargetInfo &TI,
     Builder.defineMacro("__CUDA_ARCH__");
   }
 
+  // OpenCL definitions.
+  if (LangOpts.OpenCL) {
+#define OPENCLEXT(Ext) \
+    if (TI.getSupportedOpenCLOpts().is_##Ext##_supported( \
+        LangOpts.OpenCLVersion)) \
+      Builder.defineMacro(#Ext);
+#include "clang/Basic/OpenCLExtensions.def"
+  }
+
   // Get other target #defines.
   TI.getTargetDefines(LangOpts, Builder);
 }

clang/lib/Parse/ParsePragma.cpp

@@ -468,14 +468,24 @@ void Parser::HandlePragmaOpenCLExtension() {
   ConsumeToken(); // The annotation token.
 
   OpenCLOptions &f = Actions.getOpenCLOptions();
+  auto CLVer = getLangOpts().OpenCLVersion;
+  auto &Supp = getTargetInfo().getSupportedOpenCLOpts();
   // OpenCL 1.1 9.1: "The all variant sets the behavior for all extensions,
   // overriding all previously issued extension directives, but only if the
   // behavior is set to disable."
   if (state == 0 && ename->isStr("all")) {
-#define OPENCLEXT(nm)   f.nm = 0;
+#define OPENCLEXT(nm) \
+    if (Supp.is_##nm##_supported_extension(CLVer)) \
+      f.nm = 0;
 #include "clang/Basic/OpenCLExtensions.def"
   }
-#define OPENCLEXT(nm) else if (ename->isStr(#nm)) { f.nm = state; }
+#define OPENCLEXT(nm) else if (ename->isStr(#nm)) \
+   if (Supp.is_##nm##_supported_extension(CLVer)) \
+     f.nm = state; \
+   else if (Supp.is_##nm##_supported_core(CLVer)) \
+     PP.Diag(NameLoc, diag::warn_pragma_extension_is_core) << ename; \
+   else \
+     PP.Diag(NameLoc, diag::warn_pragma_unsupported_extension) << ename;
 #include "clang/Basic/OpenCLExtensions.def"
   else {
     PP.Diag(NameLoc, diag::warn_pragma_unknown_extension) << ename;

clang/lib/Sema/Sema.cpp

@@ -207,8 +207,14 @@ void Sema::Initialize() {
     addImplicitTypedef("size_t", Context.getSizeType());
   }
 
-  // Initialize predefined OpenCL types.
+  // Initialize predefined OpenCL types and supported optional core features.
   if (getLangOpts().OpenCL) {
+#define OPENCLEXT(Ext) \
+     if (Context.getTargetInfo().getSupportedOpenCLOpts().is_##Ext##_supported_core( \
+         getLangOpts().OpenCLVersion)) \
+       getOpenCLOptions().Ext = 1;
+#include "clang/Basic/OpenCLExtensions.def"
+
     addImplicitTypedef("sampler_t", Context.OCLSamplerTy);
     addImplicitTypedef("event_t", Context.OCLEventTy);
     if (getLangOpts().OpenCLVersion >= 200) {

clang/test/CodeGenOpenCL/builtins-r600.cl

@@ -1,5 +1,5 @@
 // REQUIRES: amdgpu-registered-target
-// RUN: %clang_cc1 -triple r600-unknown-unknown -S -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple r600-unknown-unknown -target-cpu rv670 -S -emit-llvm -o - %s | FileCheck %s
 
 #pragma OPENCL EXTENSION cl_khr_fp64 : enable
 

clang/test/CodeGenOpenCL/fpmath.cl

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s
+// RUN: %clang_cc1 %s -emit-llvm -o - -triple spir-unknown-unknown | FileCheck %s
 
 typedef __attribute__(( ext_vector_type(4) )) float float4;
 

clang/test/CodeGenOpenCL/half.cl

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s
+// RUN: %clang_cc1 %s -emit-llvm -o - -triple spir-unknown-unknown | FileCheck %s
 
 #pragma OPENCL EXTENSION cl_khr_fp16 : enable
 

clang/test/Lexer/opencl-half-literal.cl

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -fsyntax-only -verify
+// RUN: %clang_cc1 %s -fsyntax-only -verify -triple spir-unknown-unknown
 
 #pragma OPENCL EXTENSION cl_khr_fp16 : enable
 

clang/test/Misc/languageOptsOpenCL.cl

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -x cl %s -verify
+// RUN: %clang_cc1 -x cl %s -verify -triple spir-unknown-unknown
 // expected-no-diagnostics
 
 // Test the forced language options for OpenCL are set correctly.

clang/test/PCH/opencl-extensions.cl

@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 -emit-pch -o %t %s
-// RUN: %clang_cc1 -include-pch %t -fsyntax-only %s 
+// RUN: %clang_cc1 -emit-pch -o %t %s -triple spir-unknown-unknown
+// RUN: %clang_cc1 -include-pch %t -fsyntax-only %s  -triple spir-unknown-unknown
 
 #ifndef HEADER
 #define HEADER

clang/test/Parser/opencl-astype.cl

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -verify %s
+// RUN: %clang_cc1 -fsyntax-only -verify %s -triple spir-unknown-unknown
 #pragma OPENCL EXTENSION cl_khr_fp64 : enable
 
 void test_astype() {

clang/test/Parser/opencl-atomics-cl20.cl

@@ -1,11 +1,14 @@
-// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only
-// RUN: %clang_cc1 %s -verify  -fsyntax-only -cl-std=CL2.0 -DCL20
-// RUN: %clang_cc1 %s -verify  -fsyntax-only -cl-std=CL2.0 -DCL20 -DEXT
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -verify -pedantic -fsyntax-only
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -verify -fsyntax-only -cl-std=CL2.0 -DCL20
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -verify -fsyntax-only -cl-std=CL2.0 -DCL20 -DEXT
 
 #ifdef EXT
 #pragma OPENCL EXTENSION cl_khr_int64_base_atomics:enable
 #pragma OPENCL EXTENSION cl_khr_int64_extended_atomics:enable
 #pragma OPENCL EXTENSION cl_khr_fp64:enable
+#if __OPENCL_C_VERSION__ >= CL_VERSION_1_2
+// expected-warning@-2{{OpenCL extension 'cl_khr_fp64' is core feature or supported optional core feature - ignoring}}
+#endif
 #endif
 
 void atomic_types_test() {
@@ -44,15 +47,14 @@ void atomic_types_test() {
 // expected-error@-28 {{use of type 'atomic_ulong' (aka '_Atomic(unsigned long)') requires cl_khr_int64_extended_atomics extension to be enabled}}
 // expected-error@-27 {{use of type 'atomic_double' (aka '_Atomic(double)') requires cl_khr_int64_base_atomics extension to be enabled}}
 // expected-error@-28 {{use of type 'atomic_double' (aka '_Atomic(double)') requires cl_khr_int64_extended_atomics extension to be enabled}}
-// expected-error@-29 {{use of type 'atomic_double' (aka '_Atomic(double)') requires cl_khr_fp64 extension to be enabled}}
-// expected-error-re@-28 {{use of type 'atomic_intptr_t' (aka '_Atomic({{.+}})') requires cl_khr_int64_base_atomics extension to be enabled}}
-// expected-error-re@-29 {{use of type 'atomic_intptr_t' (aka '_Atomic({{.+}})') requires cl_khr_int64_extended_atomics extension to be enabled}}
-// expected-error-re@-29 {{use of type 'atomic_uintptr_t' (aka '_Atomic({{.+}})') requires cl_khr_int64_base_atomics extension to be enabled}}
-// expected-error-re@-30 {{use of type 'atomic_uintptr_t' (aka '_Atomic({{.+}})') requires cl_khr_int64_extended_atomics extension to be enabled}}
-// expected-error-re@-30 {{use of type 'atomic_size_t' (aka '_Atomic({{.+}})') requires cl_khr_int64_base_atomics extension to be enabled}}
-// expected-error-re@-31 {{use of type 'atomic_size_t' (aka '_Atomic({{.+}})') requires cl_khr_int64_extended_atomics extension to be enabled}}
-// expected-error-re@-31 {{use of type 'atomic_ptrdiff_t' (aka '_Atomic({{.+}})') requires cl_khr_int64_base_atomics extension to be enabled}}
-// expected-error-re@-32 {{use of type 'atomic_ptrdiff_t' (aka '_Atomic({{.+}})') requires cl_khr_int64_extended_atomics extension to be enabled}}
+// expected-error-re@-27 {{use of type 'atomic_intptr_t' (aka '_Atomic({{.+}})') requires cl_khr_int64_base_atomics extension to be enabled}}
+// expected-error-re@-28 {{use of type 'atomic_intptr_t' (aka '_Atomic({{.+}})') requires cl_khr_int64_extended_atomics extension to be enabled}}
+// expected-error-re@-28 {{use of type 'atomic_uintptr_t' (aka '_Atomic({{.+}})') requires cl_khr_int64_base_atomics extension to be enabled}}
+// expected-error-re@-29 {{use of type 'atomic_uintptr_t' (aka '_Atomic({{.+}})') requires cl_khr_int64_extended_atomics extension to be enabled}}
+// expected-error-re@-29 {{use of type 'atomic_size_t' (aka '_Atomic({{.+}})') requires cl_khr_int64_base_atomics extension to be enabled}}
+// expected-error-re@-30 {{use of type 'atomic_size_t' (aka '_Atomic({{.+}})') requires cl_khr_int64_extended_atomics extension to be enabled}}
+// expected-error-re@-30 {{use of type 'atomic_ptrdiff_t' (aka '_Atomic({{.+}})') requires cl_khr_int64_base_atomics extension to be enabled}}
+// expected-error-re@-31 {{use of type 'atomic_ptrdiff_t' (aka '_Atomic({{.+}})') requires cl_khr_int64_extended_atomics extension to be enabled}}
 #endif
 
 #ifdef CL20

clang/test/Parser/opencl-pragma.cl

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -verify -pedantic -Wno-empty-translation-unit -fsyntax-only
+// RUN: %clang_cc1 %s -verify -pedantic -Wno-empty-translation-unit -fsyntax-only -triple spir-unknown-unknown
 
 #pragma OPENCL EXTENSION cl_khr_fp16 : enable
 

clang/test/Parser/opencl-storage-class.cl

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -verify -fsyntax-only
+// RUN: %clang_cc1 %s -verify -fsyntax-only -triple spir-unknown-unknown
 
 void test_storage_class_specs()
 {

clang/test/SemaOpenCL/extension-fp64-cl1.1.cl

@@ -1,19 +0,0 @@
-// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=CL1.1
-
-void f1(double da) { // expected-error {{type 'double' requires cl_khr_fp64 extension}}
-  double d; // expected-error {{type 'double' requires cl_khr_fp64 extension}}
-  (void) 1.0; // expected-warning {{double precision constant requires cl_khr_fp64}}
-}
-
-#pragma OPENCL EXTENSION cl_khr_fp64 : enable
-
-void f2(void) {
-  double d;
-  (void) 1.0;
-}
-
-#pragma OPENCL EXTENSION cl_khr_fp64 : disable
-
-void f3(void) {
-  double d; // expected-error {{type 'double' requires cl_khr_fp64 extension}}
-}

clang/test/SemaOpenCL/extension-fp64.cl

@@ -1,19 +0,0 @@
-// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only
-
-void f1(double da) { // expected-error {{type 'double' requires cl_khr_fp64 extension}}
-  double d; // expected-error {{type 'double' requires cl_khr_fp64 extension}}
-  (void) 1.0; // expected-warning {{double precision constant requires cl_khr_fp64}}
-}
-
-#pragma OPENCL EXTENSION cl_khr_fp64 : enable
-
-void f2(void) {
-  double d;
-  (void) 1.0;
-}
-
-#pragma OPENCL EXTENSION cl_khr_fp64 : disable
-
-void f3(void) {
-  double d; // expected-error {{type 'double' requires cl_khr_fp64 extension}}
-}

clang/test/SemaOpenCL/extensions.cl

@@ -0,0 +1,36 @@
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -verify -pedantic -fsyntax-only
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -verify -pedantic -fsyntax-only -cl-std=CL1.1
+
+// Test with a target not supporting fp64.
+// RUN: %clang_cc1 %s -triple r600-unknown-unknown -target-cpu r600 -verify -pedantic -fsyntax-only -DNOFP64
+
+void f1(double da) { // expected-error {{type 'double' requires cl_khr_fp64 extension}}
+  double d; // expected-error {{type 'double' requires cl_khr_fp64 extension}}
+  (void) 1.0; // expected-warning {{double precision constant requires cl_khr_fp64}}
+}
+
+#pragma OPENCL EXTENSION cl_khr_fp64 : enable
+#ifdef NOFP64
+// expected-warning@-2{{unsupported OpenCL extension 'cl_khr_fp64' - ignoring}}
+#endif
+
+void f2(void) {
+  double d;
+#ifdef NOFP64
+// expected-error@-2{{use of type 'double' requires cl_khr_fp64 extension to be enabled}}
+#endif
+
+  (void) 1.0;
+#ifdef NOFP64
+// expected-warning@-2{{double precision constant requires cl_khr_fp64, casting to single precision}}
+#endif
+}
+
+#pragma OPENCL EXTENSION cl_khr_fp64 : disable
+#ifdef NOFP64
+// expected-warning@-2{{unsupported OpenCL extension 'cl_khr_fp64' - ignoring}}
+#endif
+
+void f3(void) {
+  double d; // expected-error {{type 'double' requires cl_khr_fp64 extension}}
+}

clang/test/SemaOpenCL/half.cl

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -Wno-unused-value
+// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -Wno-unused-value -triple spir-unknown-unknown
 
 #pragma OPENCL EXTENSION cl_khr_fp16 : disable
 constant float f = 1.0h; // expected-error{{half precision constant requires cl_khr_fp16}}

clang/test/SemaOpenCL/invalid-kernel-parameters.cl

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -verify %s
+// RUN: %clang_cc1 -fsyntax-only -verify %s -triple spir-unknown-unknown
 
 #pragma OPENCL EXTENSION cl_khr_fp16 : enable
 

clang/test/SemaOpenCL/invalid-logical-ops-1.2.cl

@@ -1,6 +1,7 @@
 // RUN: %clang_cc1 %s -verify -cl-std=CL1.2 -triple x86_64-unknown-linux-gnu
 
-#pragma OPENCL EXTENSION cl_khr_fp64 : enable
+#pragma OPENCL EXTENSION cl_khr_fp64 : enable // expected-warning{{OpenCL extension 'cl_khr_fp64' is core feature or supported optional core feature - ignoring}}
+
 typedef __attribute__((ext_vector_type(4))) float float4;
 typedef __attribute__((ext_vector_type(4))) double double4;
 typedef __attribute__((ext_vector_type(4))) int int4;

clang/test/SemaOpenCL/optional-core-fp64-cl1.2.cl

@@ -1,20 +0,0 @@
-// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=CL1.2
-// expected-no-diagnostics
-
-void f1(double da) {
-  double d;
-  (void) 1.0;
-}
-
-#pragma OPENCL EXTENSION cl_khr_fp64 : enable
-
-void f2(void) {
-  double d;
-  (void) 1.0;
-}
-
-#pragma OPENCL EXTENSION cl_khr_fp64 : disable
-
-void f3(void) {
-  double d;
-}

clang/test/SemaOpenCL/optional-core-fp64-cl2.0.cl

@@ -1,20 +0,0 @@
-// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=CL2.0
-// expected-no-diagnostics
-
-void f1(double da) {
-  double d;
-  (void) 1.0;
-}
-
-#pragma OPENCL EXTENSION cl_khr_fp64 : enable
-
-void f2(void) {
-  double d;
-  (void) 1.0;
-}
-
-#pragma OPENCL EXTENSION cl_khr_fp64 : disable
-
-void f3(void) {
-  double d;
-}