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//===-- R600ISelLowering.h - R600 DAG Lowering Interface -*- C++ -*--------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// R600 DAG Lowering interface definition
//
//===----------------------------------------------------------------------===//
#ifndef R600ISELLOWERING_H
#define R600ISELLOWERING_H
#include "AMDGPUISelLowering.h"
namespace llvm {
class R600InstrInfo;
class R600TargetLowering : public AMDGPUTargetLowering
{
public:
R600TargetLowering(TargetMachine &TM);
virtual MachineBasicBlock * EmitInstrWithCustomInserter(MachineInstr *MI,
MachineBasicBlock * BB) const;
virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
private:
const R600InstrInfo * TII;
/// lowerImplicitParameter - Each OpenCL kernel has nine implicit parameters
/// that are stored in the first nine dwords of a Vertex Buffer. These
/// implicit parameters are represented by pseudo instructions, which are
/// lowered to VTX_READ instructions by this function.
void lowerImplicitParameter(MachineInstr *MI, MachineBasicBlock &BB,
MachineRegisterInfo & MRI, unsigned dword_offset) const;
/// LowerROTL - Lower ROTL opcode to BITALIGN
SDValue LowerROTL(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG) const;
};
} // End namespace llvm;
#endif // R600ISELLOWERING_H
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