// Header for RemoveBarrierCalls function pass.
//
// Copyright (c) 2016 Pekka Jääskeläinen / TUT
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#ifndef _POCL_REMOVE_BARRIER_CALLS_H
#define _POCL_REMOVE_BARRIER_CALLS_H

#include "CompilerWarnings.h"
IGNORE_COMPILER_WARNING("-Wunused-parameter")

#include <llvm/IR/Function.h>

#ifndef LLVM_OLDER_THAN_10_0
#include <llvm/Pass.h>
#endif

POP_COMPILER_DIAGS


namespace pocl {

class Workgroup;

// Removes all (pseudo) barrier calls from the function. This should be called
// for non-SPMD targets after the de-SPMD has been done and before passing the
// program for the standard LLVM optimizations.
class RemoveBarrierCalls : public llvm::FunctionPass {
public:

  static char ID;

  RemoveBarrierCalls();

  virtual void getAnalysisUsage(llvm::AnalysisUsage &AU) const;
  virtual bool runOnFunction(llvm::Function &F);

};

}

#endif

