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      1 //===----- CGCUDARuntime.h - Interface to CUDA Runtimes ---------*- C++ -*-===//
      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 #ifndef LLVM_CLANG_LIB_CODEGEN_CGCUDARUNTIME_H
     17 #define LLVM_CLANG_LIB_CODEGEN_CGCUDARUNTIME_H
     18 
     19 namespace clang {
     20 
     21 class CUDAKernelCallExpr;
     22 
     23 namespace CodeGen {
     24 
     25 class CodeGenFunction;
     26 class CodeGenModule;
     27 class FunctionArgList;
     28 class ReturnValueSlot;
     29 class RValue;
     30 
     31 class CGCUDARuntime {
     32 protected:
     33   CodeGenModule &CGM;
     34 
     35 public:
     36   CGCUDARuntime(CodeGenModule &CGM) : CGM(CGM) {}
     37   virtual ~CGCUDARuntime();
     38 
     39   virtual RValue EmitCUDAKernelCallExpr(CodeGenFunction &CGF,
     40                                         const CUDAKernelCallExpr *E,
     41                                         ReturnValueSlot ReturnValue);
     42 
     43   virtual void EmitDeviceStubBody(CodeGenFunction &CGF,
     44                                   FunctionArgList &Args) = 0;
     45 
     46 };
     47 
     48 /// Creates an instance of a CUDA runtime class.
     49 CGCUDARuntime *CreateNVCUDARuntime(CodeGenModule &CGM);
     50 
     51 }
     52 }
     53 
     54 #endif
     55