contrib/llvm/tools/clang/lib/CodeGen/CGOpenCLRuntime.cpp

   1 //===----- CGOpenCLRuntime.cpp - Interface to OpenCL Runtimes -------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This provides an abstract class for OpenCL code generation.  Concrete
  11 // subclasses of this implement code generation for specific OpenCL
  12 // runtime libraries.
  13 //
  14 //===----------------------------------------------------------------------===//
  15
  16 #include "CGOpenCLRuntime.h"
  17 #include "CodeGenFunction.h"
  18 #include "llvm/IR/DerivedTypes.h"
  19 #include "llvm/IR/GlobalValue.h"
  20 #include <assert.h>
  21
  22 using namespace clang;
  23 using namespace CodeGen;
  24
  25 CGOpenCLRuntime::~CGOpenCLRuntime() {}
  26
  27 void CGOpenCLRuntime::EmitWorkGroupLocalVarDecl(CodeGenFunction &CGF,
  28                                                 const VarDecl &D) {
  29   return CGF.EmitStaticVarDecl(D, llvm::GlobalValue::InternalLinkage);
  30 }
  31
  32 llvm::Type *CGOpenCLRuntime::convertOpenCLSpecificType(const Type *T) {
  33   assert(T->isOpenCLSpecificType() &&
  34          "Not an OpenCL specific type!");
  35
  36   switch (cast<BuiltinType>(T)->getKind()) {
  37   default:
  38     llvm_unreachable("Unexpected opencl builtin type!");
  39     return 0;
  40   case BuiltinType::OCLImage1d:
  41     return llvm::PointerType::get(llvm::StructType::create(
  42                            CGM.getLLVMContext(), "opencl.image1d_t"), 0);
  43   case BuiltinType::OCLImage1dArray:
  44     return llvm::PointerType::get(llvm::StructType::create(
  45                            CGM.getLLVMContext(), "opencl.image1d_array_t"), 0);
  46   case BuiltinType::OCLImage1dBuffer:
  47     return llvm::PointerType::get(llvm::StructType::create(
  48                            CGM.getLLVMContext(), "opencl.image1d_buffer_t"), 0);
  49   case BuiltinType::OCLImage2d:
  50     return llvm::PointerType::get(llvm::StructType::create(
  51                            CGM.getLLVMContext(), "opencl.image2d_t"), 0);
  52   case BuiltinType::OCLImage2dArray:
  53     return llvm::PointerType::get(llvm::StructType::create(
  54                            CGM.getLLVMContext(), "opencl.image2d_array_t"), 0);
  55   case BuiltinType::OCLImage3d:
  56     return llvm::PointerType::get(llvm::StructType::create(
  57                            CGM.getLLVMContext(), "opencl.image3d_t"), 0);
  58   case BuiltinType::OCLSampler:
  59     return llvm::IntegerType::get(CGM.getLLVMContext(),32);
  60   case BuiltinType::OCLEvent:
  61     return llvm::PointerType::get(llvm::StructType::create(
  62                            CGM.getLLVMContext(), "opencl.event_t"), 0);
  63   }
  64 }