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// Class for barrier instructions, modelled as a CallInstr.
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// Copyright (c) 2011 Universidad Rey Juan Carlos
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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#define BARRIER_FUNCTION_NAME "pocl.barrier"
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#include "llvm/Instructions.h"
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#include "llvm/Function.h"
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#include "llvm/Module.h"
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#include "llvm/Support/Casting.h"
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class Barrier : public llvm::CallInst {
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static Barrier *Create(llvm::Instruction *InsertBefore) {
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llvm::Module *M = InsertBefore->getParent()->getParent()->getParent();
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llvm::Function *F = llvm::cast<llvm::Function>
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(M->getOrInsertFunction(BARRIER_FUNCTION_NAME,
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llvm::Type::getVoidTy(M->getContext()),
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return llvm::cast<pocl::Barrier>
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(llvm::CallInst::Create(F, "", InsertBefore));
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static bool classof(const Barrier *) { return true; };
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static bool classof(const llvm::CallInst *C) {
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return C->getCalledFunction()->getName() == BARRIER_FUNCTION_NAME;
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static bool classof(const Instruction *I) {
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return (llvm::isa<llvm::CallInst>(I) &&
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classof(llvm::cast<llvm::CallInst>(I)));
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lib/llvmopencl/Barrier.h
