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
22using namespace clang;
23using namespace CodeGen;
24
25CGOpenCLRuntime::~CGOpenCLRuntime() {}
26
27void CGOpenCLRuntime::EmitWorkGroupLocalVarDecl(CodeGenFunction &CGF,
28                                                const VarDecl &D) {
29  return CGF.EmitStaticVarDecl(D, llvm::GlobalValue::InternalLinkage);
30}
31
32llvm::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}
65