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   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
 103 llvm::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 }