[SYCL][LinkerWrapper][NFC] Align code structure to community (#12499)

This patch moves 'clang/tools/clang-linker-wrapper/SYCLOffloadWrapper.*'
functionality to 'llvm/Frontend/Offloading' to be aligned with the
community code structure.

Author: maksimsab

clang/tools/clang-linker-wrapper/CMakeLists.txt

@@ -28,7 +28,6 @@ endif()
 
 add_clang_tool(clang-linker-wrapper
   ClangLinkerWrapper.cpp
-  SYCLOffloadWrapper.cpp
 
   DEPENDS
   ${tablegen_deps}

clang/tools/clang-linker-wrapper/ClangLinkerWrapper.cpp

@@ -14,12 +14,12 @@
 //
 //===---------------------------------------------------------------------===//
 
-#include "SYCLOffloadWrapper.h"
 #include "clang/Basic/Version.h"
 #include "llvm/BinaryFormat/Magic.h"
 #include "llvm/Bitcode/BitcodeWriter.h"
 #include "llvm/CodeGen/CommandFlags.h"
 #include "llvm/Frontend/Offloading/OffloadWrapper.h"
+#include "llvm/Frontend/Offloading/SYCLOffloadWrapper.h"
 #include "llvm/Frontend/Offloading/Utility.h"
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/DiagnosticPrinter.h"
@@ -741,8 +741,8 @@ readPropertyRegistryFromFile(StringRef File) {
 // a_n.bin|a_n.prop|a_n.sym
 //
 // .bin extension might be a bc, spv or other native extension.
-Expected<SmallVector<SYCLImage>> readSYCLImagesFromTable(StringRef TableFile,
-                                                         const ArgList &Args) {
+Expected<SmallVector<offloading::SYCLImage>>
+readSYCLImagesFromTable(StringRef TableFile, const ArgList &Args) {
   auto TableOrErr = util::SimpleTable::read(TableFile);
   if (!TableOrErr)
     return TableOrErr.takeError();
@@ -756,7 +756,7 @@ Expected<SmallVector<SYCLImage>> readSYCLImagesFromTable(StringRef TableFile,
         inconvertibleErrorCode(),
         "expected columns in the table: Code, Properties and Symbols");
 
-  SmallVector<SYCLImage> Images;
+  SmallVector<offloading::SYCLImage> Images;
   for (const util::SimpleTable::Row &row : Table->rows()) {
     auto ImageOrErr = readBinaryFile(row.getCell("Code"));
     if (!ImageOrErr)
@@ -771,7 +771,7 @@ Expected<SmallVector<SYCLImage>> readSYCLImagesFromTable(StringRef TableFile,
     if (!SymbolsOrErr)
       return SymbolsOrErr.takeError();
 
-    SYCLImage Image;
+    offloading::SYCLImage Image;
     Image.Image = std::move(*ImageOrErr);
     Image.PropertyRegistry = std::move(**PropertiesOrErr);
     Image.Entries = std::move(*SymbolsOrErr);
@@ -811,7 +811,7 @@ Expected<StringRef> wrapSYCLBinariesFromFile(StringRef InputFile,
         inconvertibleErrorCode(),
         "can't wrap SYCL image. -triple argument is missed.");
 
-  for (SYCLImage &Image : Images)
+  for (offloading::SYCLImage &Image : Images)
     Image.Target = Target;
 
   LLVMContext C;
@@ -822,10 +822,10 @@ Expected<StringRef> wrapSYCLBinariesFromFile(StringRef InputFile,
   StringRef CompileOptions =
       Args.getLastArgValue(OPT_sycl_backend_compile_options_EQ);
   StringRef LinkOptions = Args.getLastArgValue(OPT_sycl_target_link_options_EQ);
-  SYCLWrappingOptions WrappingOptions;
+  offloading::SYCLWrappingOptions WrappingOptions;
   WrappingOptions.CompileOptions = CompileOptions;
   WrappingOptions.LinkOptions = LinkOptions;
-  if (Error E = wrapSYCLBinaries(M, Images, WrappingOptions))
+  if (Error E = offloading::wrapSYCLBinaries(M, Images, WrappingOptions))
     return E;
 
   if (Args.hasArg(OPT_print_wrapped_module))

clang/tools/clang-linker-wrapper/SYCLOffloadWrapper.h renamed to llvm/include/llvm/Frontend/Offloading/SYCLOffloadWrapper.h

@@ -18,6 +18,9 @@
 #include <utility>
 #include <vector>
 
+namespace llvm {
+namespace offloading {
+
 // SYCL binary image formats supported.
 enum class SYCLBinaryImageFormat {
   BIF_None,   // Undetermined Image kind
@@ -50,8 +53,14 @@ struct SYCLWrappingOptions {
   std::string LinkOptions;
 };
 
+/// Wraps the input bundled images and accompanied data into the module \p M
+/// as global symbols and registers the images with the SYCL Runtime.
+/// \param Options Settings that allows to turn on optional data and settings.
 llvm::Error
 wrapSYCLBinaries(llvm::Module &M, llvm::SmallVector<SYCLImage> &Images,
                  SYCLWrappingOptions Options = SYCLWrappingOptions());
 
+} // namespace offloading
+} // namespace llvm
+
 #endif

llvm/lib/Frontend/Offloading/CMakeLists.txt

@@ -1,6 +1,8 @@
 add_llvm_component_library(LLVMFrontendOffloading
   Utility.cpp
   OffloadWrapper.cpp
+  SYCLOffloadWrapper.cpp
+
 
   ADDITIONAL_HEADER_DIRS
   ${LLVM_MAIN_INCLUDE_DIR}/llvm/Frontend

clang/tools/clang-linker-wrapper/SYCLOffloadWrapper.cpp renamed to llvm/lib/Frontend/Offloading/SYCLOffloadWrapper.cpp

@@ -14,7 +14,7 @@
 //  sycl/include/sycl/detail/pi.h
 //===----------------------------------------------------------------------===//
 
-#include "SYCLOffloadWrapper.h"
+#include "llvm/Frontend/Offloading/SYCLOffloadWrapper.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringRef.h"
@@ -40,6 +40,7 @@
 #include <utility>
 
 using namespace llvm;
+using namespace llvm::offloading;
 using namespace llvm::util;
 
 namespace {
@@ -727,8 +728,9 @@ struct Wrapper {
 
 } // anonymous namespace
 
-Error wrapSYCLBinaries(llvm::Module &M, SmallVector<SYCLImage> &Images,
-                       SYCLWrappingOptions Options) {
+Error llvm::offloading::wrapSYCLBinaries(llvm::Module &M,
+                                         SmallVector<SYCLImage> &Images,
+                                         SYCLWrappingOptions Options) {
   Wrapper W(M, Options);
   GlobalVariable *Desc = W.createFatbinDesc(Images);
   if (!Desc)