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
~CGOpenCLRuntime()25 CGOpenCLRuntime::~CGOpenCLRuntime() {}
26
EmitWorkGroupLocalVarDecl(CodeGenFunction & CGF,const VarDecl & D)27 void CGOpenCLRuntime::EmitWorkGroupLocalVarDecl(CodeGenFunction &CGF,
28 const VarDecl &D) {
29 return CGF.EmitStaticVarDecl(D, llvm::GlobalValue::InternalLinkage);
30 }
31
convertOpenCLSpecificType(const Type * T)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 #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \
44 case BuiltinType::Id: \
45 return llvm::PointerType::get( \
46 llvm::StructType::create(Ctx, "opencl." #ImgType "_" #Suffix "_t"), \
47 ImgAddrSpc);
48 #include "clang/Basic/OpenCLImageTypes.def"
49 case BuiltinType::OCLSampler:
50 return llvm::IntegerType::get(Ctx, 32);
51 case BuiltinType::OCLEvent:
52 return llvm::PointerType::get(llvm::StructType::create(
53 Ctx, "opencl.event_t"), 0);
54 case BuiltinType::OCLClkEvent:
55 return llvm::PointerType::get(
56 llvm::StructType::create(Ctx, "opencl.clk_event_t"), 0);
57 case BuiltinType::OCLQueue:
58 return llvm::PointerType::get(
59 llvm::StructType::create(Ctx, "opencl.queue_t"), 0);
60 case BuiltinType::OCLNDRange:
61 return llvm::PointerType::get(
62 llvm::StructType::create(Ctx, "opencl.ndrange_t"), 0);
63 case BuiltinType::OCLReserveID:
64 return llvm::PointerType::get(
65 llvm::StructType::create(Ctx, "opencl.reserve_id_t"), 0);
66 }
67 }
68
getPipeType()69 llvm::Type *CGOpenCLRuntime::getPipeType() {
70 if (!PipeTy){
71 uint32_t PipeAddrSpc =
72 CGM.getContext().getTargetAddressSpace(LangAS::opencl_global);
73 PipeTy = llvm::PointerType::get(llvm::StructType::create(
74 CGM.getLLVMContext(), "opencl.pipe_t"), PipeAddrSpc);
75 }
76
77 return PipeTy;
78 }
79