1 //===-- R600ISelLowering.h - R600 DAG Lowering Interface -*- C++ -*--------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // R600 DAG Lowering interface definition 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef R600ISELLOWERING_H 15 #define R600ISELLOWERING_H 16 17 #include "AMDGPUISelLowering.h" 18 19 namespace llvm { 20 21 class R600InstrInfo; 22 23 class R600TargetLowering : public AMDGPUTargetLowering 24 { 25 public: 26 R600TargetLowering(TargetMachine &TM); 27 virtual MachineBasicBlock * EmitInstrWithCustomInserter(MachineInstr *MI, 28 MachineBasicBlock * BB) const; 29 virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const; 30 31 private: 32 const R600InstrInfo * TII; 33 34 /// lowerImplicitParameter - Each OpenCL kernel has nine implicit parameters 35 /// that are stored in the first nine dwords of a Vertex Buffer. These 36 /// implicit parameters are lowered to load instructions which retreive the 37 /// values from the Vertex Buffer. 38 SDValue LowerImplicitParameter(SelectionDAG &DAG, EVT VT, 39 DebugLoc DL, unsigned DwordOffset) const; 40 41 void lowerImplicitParameter(MachineInstr *MI, MachineBasicBlock &BB, 42 MachineRegisterInfo & MRI, unsigned dword_offset) const; 43 44 SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG) const; 45 46 /// LowerROTL - Lower ROTL opcode to BITALIGN 47 SDValue LowerROTL(SDValue Op, SelectionDAG &DAG) const; 48 49 SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const; 50 SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG) const; 51 52 }; 53 54 } // End namespace llvm; 55 56 #endif // R600ISELLOWERING_H 57
