llvm-6502/lib/Target/R600/R600ISelLowering.h
Jan Vesely e3d17d7e9c Reinstate revisions r234755, r234759, r234760
changes:
  Don't apply on hexagon and NVPTX since they no longer claim to support UADDO/USUBO
  Add location to getConstant
  Drop comment about the ops being turned into expand

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236240 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-30 17:15:56 +00:00

81 lines
3.5 KiB
C++

//===-- 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.
//
//===----------------------------------------------------------------------===//
//
/// \file
/// \brief R600 DAG Lowering interface definition
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_R600_R600ISELLOWERING_H
#define LLVM_LIB_TARGET_R600_R600ISELLOWERING_H
#include "AMDGPUISelLowering.h"
namespace llvm {
class R600InstrInfo;
class R600TargetLowering : public AMDGPUTargetLowering {
public:
R600TargetLowering(TargetMachine &TM, const AMDGPUSubtarget &STI);
MachineBasicBlock * EmitInstrWithCustomInserter(MachineInstr *MI,
MachineBasicBlock * BB) const override;
SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const override;
SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const override;
void ReplaceNodeResults(SDNode * N,
SmallVectorImpl<SDValue> &Results,
SelectionDAG &DAG) const override;
SDValue LowerFormalArguments(
SDValue Chain,
CallingConv::ID CallConv,
bool isVarArg,
const SmallVectorImpl<ISD::InputArg> &Ins,
SDLoc DL, SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals) const override;
EVT getSetCCResultType(LLVMContext &, EVT VT) const override;
private:
unsigned Gen;
/// Each OpenCL kernel has nine implicit parameters that are stored in the
/// first nine dwords of a Vertex Buffer. These implicit parameters are
/// lowered to load instructions which retrieve the values from the Vertex
/// Buffer.
SDValue LowerImplicitParameter(SelectionDAG &DAG, EVT VT,
SDLoc DL, unsigned DwordOffset) const;
void lowerImplicitParameter(MachineInstr *MI, MachineBasicBlock &BB,
MachineRegisterInfo & MRI, unsigned dword_offset) const;
SDValue OptimizeSwizzle(SDValue BuildVector, SDValue Swz[], SelectionDAG &DAG,
SDLoc DL) const;
SDValue vectorToVerticalVector(SelectionDAG &DAG, SDValue Vector) const;
SDValue LowerEXTRACT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerINSERT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSTORE(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerFPTOUINT(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerLOAD(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerBRCOND(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerTrig(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSHLParts(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSRXParts(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerUADDSUBO(SDValue Op, SelectionDAG &DAG,
unsigned mainop, unsigned ovf) const;
SDValue stackPtrToRegIndex(SDValue Ptr, unsigned StackWidth,
SelectionDAG &DAG) const;
void getStackAddress(unsigned StackWidth, unsigned ElemIdx,
unsigned &Channel, unsigned &PtrIncr) const;
bool isZero(SDValue Op) const;
SDNode *PostISelFolding(MachineSDNode *N, SelectionDAG &DAG) const override;
};
} // End namespace llvm;
#endif