CGCUDARuntime.cpp revision 314564 
1//===----- CGCUDARuntime.cpp - Interface to CUDA 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 CUDA code generation.  Concrete
11// subclasses of this implement code generation for specific CUDA
12// runtime libraries.
13//
14//===----------------------------------------------------------------------===//
15
16#include "CGCUDARuntime.h"
17#include "CGCall.h"
18#include "CodeGenFunction.h"
19#include "clang/AST/Decl.h"
20#include "clang/AST/ExprCXX.h"
21
22using namespace clang;
23using namespace CodeGen;
24
25CGCUDARuntime::~CGCUDARuntime() {}
26
27RValue CGCUDARuntime::EmitCUDAKernelCallExpr(CodeGenFunction &CGF,
28                                             const CUDAKernelCallExpr *E,
29                                             ReturnValueSlot ReturnValue) {
30  llvm::BasicBlock *ConfigOKBlock = CGF.createBasicBlock("kcall.configok");
31  llvm::BasicBlock *ContBlock = CGF.createBasicBlock("kcall.end");
32
33  CodeGenFunction::ConditionalEvaluation eval(CGF);
34  CGF.EmitBranchOnBoolExpr(E->getConfig(), ContBlock, ConfigOKBlock,
35                           /*TrueCount=*/0);
36
37  eval.begin(CGF);
38  CGF.EmitBlock(ConfigOKBlock);
39  CGF.EmitSimpleCallExpr(E, ReturnValue);
40  CGF.EmitBranch(ContBlock);
41
42  CGF.EmitBlock(ContBlock);
43  eval.end(CGF);
44
45  return RValue::get(nullptr);
46}
47