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//===----- CGCUDARuntime.cpp - Interface to CUDA Runtimes -----------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This provides an abstract class for CUDA code generation. Concrete
// subclasses of this implement code generation for specific CUDA
// runtime libraries.
//
//===----------------------------------------------------------------------===//
#include "CGCUDARuntime.h"
#include "CGCall.h"
#include "CodeGenFunction.h"
#include "clang/AST/Decl.h"
#include "clang/AST/ExprCXX.h"
using namespace clang;
using namespace CodeGen;
CGCUDARuntime::~CGCUDARuntime() {}
RValue CGCUDARuntime::EmitCUDAKernelCallExpr(CodeGenFunction &CGF,
const CUDAKernelCallExpr *E,
ReturnValueSlot ReturnValue) {
llvm::BasicBlock *ConfigOKBlock = CGF.createBasicBlock("kcall.configok");
llvm::BasicBlock *ContBlock = CGF.createBasicBlock("kcall.end");
CodeGenFunction::ConditionalEvaluation eval(CGF);
CGF.EmitBranchOnBoolExpr(E->getConfig(), ContBlock, ConfigOKBlock);
eval.begin(CGF);
CGF.EmitBlock(ConfigOKBlock);
const Decl *TargetDecl = 0;
if (const ImplicitCastExpr *CE = dyn_cast<ImplicitCastExpr>(E->getCallee())) {
if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(CE->getSubExpr())) {
TargetDecl = DRE->getDecl();
}
}
llvm::Value *Callee = CGF.EmitScalarExpr(E->getCallee());
CGF.EmitCall(E->getCallee()->getType(), Callee, E->getLocStart(),
ReturnValue, E->arg_begin(), E->arg_end(), TargetDecl);
CGF.EmitBranch(ContBlock);
CGF.EmitBlock(ContBlock);
eval.end(CGF);
return RValue::get(0);
}
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