CGOpenCLRuntime.cpp revision 303975 
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  llvm::LLVMContext& Ctx = CGM.getLLVMContext();
37  uint32_t ImgAddrSpc =
38    CGM.getContext().getTargetAddressSpace(LangAS::opencl_global);
39  switch (cast<BuiltinType>(T)->getKind()) {
40  default:
41    llvm_unreachable("Unexpected opencl builtin type!");
42    return nullptr;
43  case BuiltinType::OCLImage1d:
44    return llvm::PointerType::get(llvm::StructType::create(
45                           Ctx, "opencl.image1d_t"), ImgAddrSpc);
46  case BuiltinType::OCLImage1dArray:
47    return llvm::PointerType::get(llvm::StructType::create(
48                           Ctx, "opencl.image1d_array_t"), ImgAddrSpc);
49  case BuiltinType::OCLImage1dBuffer:
50    return llvm::PointerType::get(llvm::StructType::create(
51                           Ctx, "opencl.image1d_buffer_t"), ImgAddrSpc);
52  case BuiltinType::OCLImage2d:
53    return llvm::PointerType::get(llvm::StructType::create(
54                           Ctx, "opencl.image2d_t"), ImgAddrSpc);
55  case BuiltinType::OCLImage2dArray:
56    return llvm::PointerType::get(llvm::StructType::create(
57                           Ctx, "opencl.image2d_array_t"), ImgAddrSpc);
58  case BuiltinType::OCLImage2dDepth:
59    return llvm::PointerType::get(
60        llvm::StructType::create(Ctx, "opencl.image2d_depth_t"), ImgAddrSpc);
61  case BuiltinType::OCLImage2dArrayDepth:
62    return llvm::PointerType::get(
63        llvm::StructType::create(Ctx, "opencl.image2d_array_depth_t"),
64        ImgAddrSpc);
65  case BuiltinType::OCLImage2dMSAA:
66    return llvm::PointerType::get(
67        llvm::StructType::create(Ctx, "opencl.image2d_msaa_t"), ImgAddrSpc);
68  case BuiltinType::OCLImage2dArrayMSAA:
69    return llvm::PointerType::get(
70        llvm::StructType::create(Ctx, "opencl.image2d_array_msaa_t"),
71        ImgAddrSpc);
72  case BuiltinType::OCLImage2dMSAADepth:
73    return llvm::PointerType::get(
74        llvm::StructType::create(Ctx, "opencl.image2d_msaa_depth_t"),
75        ImgAddrSpc);
76  case BuiltinType::OCLImage2dArrayMSAADepth:
77    return llvm::PointerType::get(
78        llvm::StructType::create(Ctx, "opencl.image2d_array_msaa_depth_t"),
79        ImgAddrSpc);
80  case BuiltinType::OCLImage3d:
81    return llvm::PointerType::get(llvm::StructType::create(
82                           Ctx, "opencl.image3d_t"), ImgAddrSpc);
83  case BuiltinType::OCLSampler:
84    return llvm::IntegerType::get(Ctx, 32);
85  case BuiltinType::OCLEvent:
86    return llvm::PointerType::get(llvm::StructType::create(
87                           Ctx, "opencl.event_t"), 0);
88  case BuiltinType::OCLClkEvent:
89    return llvm::PointerType::get(
90        llvm::StructType::create(Ctx, "opencl.clk_event_t"), 0);
91  case BuiltinType::OCLQueue:
92    return llvm::PointerType::get(
93        llvm::StructType::create(Ctx, "opencl.queue_t"), 0);
94  case BuiltinType::OCLNDRange:
95    return llvm::PointerType::get(
96        llvm::StructType::create(Ctx, "opencl.ndrange_t"), 0);
97  case BuiltinType::OCLReserveID:
98    return llvm::PointerType::get(
99        llvm::StructType::create(Ctx, "opencl.reserve_id_t"), 0);
100  }
101}
102
103llvm::Type *CGOpenCLRuntime::getPipeType() {
104  if (!PipeTy){
105    uint32_t PipeAddrSpc =
106      CGM.getContext().getTargetAddressSpace(LangAS::opencl_global);
107    PipeTy = llvm::PointerType::get(llvm::StructType::create(
108      CGM.getLLVMContext(), "opencl.pipe_t"), PipeAddrSpc);
109  }
110
111  return PipeTy;
112}
113