1 //===----- CGCUDARuntime.cpp - Interface to CUDA Runtimes -----------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This provides an abstract class for CUDA code generation. Concrete 10 // subclasses of this implement code generation for specific CUDA 11 // runtime libraries. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #include "CGCUDARuntime.h" 16 #include "CGCall.h" 17 #include "CodeGenFunction.h" 18 #include "clang/AST/Decl.h" 19 #include "clang/AST/ExprCXX.h" 20 21 using namespace clang; 22 using namespace CodeGen; 23 24 CGCUDARuntime::~CGCUDARuntime() {} 25 26 RValue CGCUDARuntime::EmitCUDAKernelCallExpr(CodeGenFunction &CGF, 27 const CUDAKernelCallExpr *E, 28 ReturnValueSlot ReturnValue) { 29 llvm::BasicBlock *ConfigOKBlock = CGF.createBasicBlock("kcall.configok"); 30 llvm::BasicBlock *ContBlock = CGF.createBasicBlock("kcall.end"); 31 32 CodeGenFunction::ConditionalEvaluation eval(CGF); 33 CGF.EmitBranchOnBoolExpr(E->getConfig(), ContBlock, ConfigOKBlock, 34 /*TrueCount=*/0); 35 36 eval.begin(CGF); 37 CGF.EmitBlock(ConfigOKBlock); 38 CGF.EmitSimpleCallExpr(E, ReturnValue); 39 CGF.EmitBranch(ContBlock); 40 41 CGF.EmitBlock(ContBlock); 42 eval.end(CGF); 43 44 return RValue::get(nullptr); 45 } 46