src/gallium/drivers/radeon/R600ISelLowering.h

   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   virtual SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const;
  31   void ReplaceNodeResults(SDNode * N,
  32       SmallVectorImpl<SDValue> &Results,
  33       SelectionDAG &DAG) const;
  34   virtual SDValue LowerFormalArguments(
  35                                       SDValue Chain,
  36                                       CallingConv::ID CallConv,
  37                                       bool isVarArg,
  38                                       const SmallVectorImpl<ISD::InputArg> &Ins,
  39                                       DebugLoc DL, SelectionDAG &DAG,
  40                                       SmallVectorImpl<SDValue> &InVals) const;
  41 private:
  42   const R600InstrInfo * TII;
  43
  44   /// lowerImplicitParameter - Each OpenCL kernel has nine implicit parameters
  45   /// that are stored in the first nine dwords of a Vertex Buffer.  These
  46   /// implicit parameters are lowered to load instructions which retreive the
  47   /// values from the Vertex Buffer.
  48   SDValue LowerImplicitParameter(SelectionDAG &DAG, EVT VT,
  49                                  DebugLoc DL, unsigned DwordOffset) const;
  50
  51   void lowerImplicitParameter(MachineInstr *MI, MachineBasicBlock &BB,
  52       MachineRegisterInfo & MRI, unsigned dword_offset) const;
  53
  54   SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG) const;
  55
  56   /// LowerROTL - Lower ROTL opcode to BITALIGN
  57   SDValue LowerROTL(SDValue Op, SelectionDAG &DAG) const;
  58
  59   SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const;
  60   SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG) const;
  61   SDValue LowerInputFace(SDNode *Op, SelectionDAG &DAG) const;
  62   SDValue LowerFPTOUINT(SDValue Op, SelectionDAG &DAG) const;
  63
  64   bool isZero(SDValue Op) const;
  65 };
  66
  67 } // End namespace llvm;
  68
  69 #endif // R600ISELLOWERING_H