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