r354773 - [SYCL] Add clang front-end option to enable SYCL device compilation flow.

[Alexey Bader via cfe-commits]

Author: bader
Date: Mon Feb 25 03:48:48 2019
New Revision: 354773

URL: http://llvm.org/viewvc/llvm-project?rev=354773&view=rev
Log:
[SYCL] Add clang front-end option to enable SYCL device compilation flow.

Patch by Mariya Podchishchaeva <mariya.podchishchaeva at intel.com>

Added:
    cfe/trunk/test/Preprocessor/sycl-macro.cpp   (with props)
Modified:
    cfe/trunk/include/clang/Basic/LangOptions.def
    cfe/trunk/include/clang/Driver/CC1Options.td
    cfe/trunk/lib/Frontend/CompilerInvocation.cpp
    cfe/trunk/lib/Frontend/InitPreprocessor.cpp

Modified: cfe/trunk/include/clang/Basic/LangOptions.def
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/LangOptions.def?rev=354773&r1=354772&r2=354773&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/LangOptions.def (original)
+++ cfe/trunk/include/clang/Basic/LangOptions.def Mon Feb 25 03:48:48 2019
@@ -217,6 +217,8 @@ LANGOPT(CUDAHostDeviceConstexpr, 1, 1, "
 LANGOPT(CUDADeviceApproxTranscendentals, 1, 0, "using approximate transcendental functions")
 LANGOPT(GPURelocatableDeviceCode, 1, 0, "generate relocatable device code")
 
+LANGOPT(SYCLIsDevice      , 1, 0, "Generate code for SYCL device")
+
 LANGOPT(SizedDeallocation , 1, 0, "sized deallocation")
 LANGOPT(AlignedAllocation , 1, 0, "aligned allocation")
 LANGOPT(AlignedAllocationUnavailable, 1, 0, "aligned allocation functions are unavailable")

Modified: cfe/trunk/include/clang/Driver/CC1Options.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/CC1Options.td?rev=354773&r1=354772&r2=354773&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/CC1Options.td (original)
+++ cfe/trunk/include/clang/Driver/CC1Options.td Mon Feb 25 03:48:48 2019
@@ -836,8 +836,14 @@ def fopenmp_is_device : Flag<["-"], "fop
 def fopenmp_host_ir_file_path : Separate<["-"], "fopenmp-host-ir-file-path">,
   HelpText<"Path to the IR file produced by the frontend for the host.">;
 
-} // let Flags = [CC1Option]
+//===----------------------------------------------------------------------===//
+// SYCL Options
+//===----------------------------------------------------------------------===//
 
+def fsycl_is_device : Flag<["-"], "fsycl-is-device">,
+  HelpText<"Generate code for SYCL device.">;
+
+} // let Flags = [CC1Option]
 
 //===----------------------------------------------------------------------===//
 // cc1as-only Options

Modified: cfe/trunk/lib/Frontend/CompilerInvocation.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInvocation.cpp?rev=354773&r1=354772&r2=354773&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original)
+++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Mon Feb 25 03:48:48 2019
@@ -2879,6 +2879,8 @@ static void ParseLangArgs(LangOptions &O
           << Opts.OMPHostIRFile;
   }
 
+  Opts.SYCLIsDevice = Args.hasArg(options::OPT_fsycl_is_device);
+
   // Set CUDA mode for OpenMP target NVPTX if specified in options
   Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() &&
                         Args.hasArg(options::OPT_fopenmp_cuda_mode);

Modified: cfe/trunk/lib/Frontend/InitPreprocessor.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/InitPreprocessor.cpp?rev=354773&r1=354772&r2=354773&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/InitPreprocessor.cpp (original)
+++ cfe/trunk/lib/Frontend/InitPreprocessor.cpp Mon Feb 25 03:48:48 2019
@@ -1057,6 +1057,12 @@ static void InitializePredefinedMacros(c
     Builder.defineMacro("__CLANG_CUDA_APPROX_TRANSCENDENTALS__");
   }
 
+  // Define a macro indicating that the source file is being compiled with a
+  // SYCL device compiler which doesn't produce host binary.
+  if (LangOpts.SYCLIsDevice) {
+    Builder.defineMacro("__SYCL_DEVICE_ONLY__", "1");
+  }
+
   // OpenCL definitions.
   if (LangOpts.OpenCL) {
 #define OPENCLEXT(Ext)                                                         \

Added: cfe/trunk/test/Preprocessor/sycl-macro.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/sycl-macro.cpp?rev=354773&view=auto
==============================================================================
--- cfe/trunk/test/Preprocessor/sycl-macro.cpp (added)
+++ cfe/trunk/test/Preprocessor/sycl-macro.cpp Mon Feb 25 03:48:48 2019
@@ -0,0 +1,5 @@
+// RUN: %clang_cc1 %s -E -dM | FileCheck %s
+// RUN: %clang_cc1 %s -fsycl-is-device -E -dM | FileCheck --check-prefix=CHECK-SYCL %s
+
+// CHECK-NOT:#define __SYCL_DEVICE_ONLY__ 1
+// CHECK-SYCL:#define __SYCL_DEVICE_ONLY__ 1

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