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https://github.com/c64scene-ar/llvm-6502.git
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27608d8393
Instructions are now generally selected to the e64 forms originally, and shrunk down later. Rename foldOperands to legalizeOperands, since that's really most of what it tries to do. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217959 91177308-0d34-0410-b5e6-96231b3b80d8
110 lines
4.8 KiB
C++
110 lines
4.8 KiB
C++
//===-- SIISelLowering.h - SI DAG Lowering Interface ------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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/// \file
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/// \brief SI DAG Lowering interface definition
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_R600_SIISELLOWERING_H
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#define LLVM_LIB_TARGET_R600_SIISELLOWERING_H
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#include "AMDGPUISelLowering.h"
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#include "SIInstrInfo.h"
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namespace llvm {
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class SITargetLowering : public AMDGPUTargetLowering {
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SDValue LowerParameter(SelectionDAG &DAG, EVT VT, EVT MemVT, SDLoc DL,
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SDValue Chain, unsigned Offset, bool Signed) const;
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SDValue LowerSampleIntrinsic(unsigned Opcode, const SDValue &Op,
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SelectionDAG &DAG) const;
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SDValue LowerGlobalAddress(AMDGPUMachineFunction *MFI, SDValue Op,
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SelectionDAG &DAG) const override;
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SDValue LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) const;
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SDValue LowerINTRINSIC_VOID(SDValue Op, SelectionDAG &DAG) const;
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SDValue LowerFrameIndex(SDValue Op, SelectionDAG &DAG) const;
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SDValue LowerLOAD(SDValue Op, SelectionDAG &DAG) const;
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SDValue LowerSELECT(SDValue Op, SelectionDAG &DAG) const;
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SDValue LowerFastFDIV(SDValue Op, SelectionDAG &DAG) const;
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SDValue LowerFDIV32(SDValue Op, SelectionDAG &DAG) const;
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SDValue LowerFDIV64(SDValue Op, SelectionDAG &DAG) const;
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SDValue LowerFDIV(SDValue Op, SelectionDAG &DAG) const;
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SDValue LowerSTORE(SDValue Op, SelectionDAG &DAG) const;
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SDValue LowerTrig(SDValue Op, SelectionDAG &DAG) const;
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SDValue LowerBRCOND(SDValue Op, SelectionDAG &DAG) const;
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bool foldImm(SDValue &Operand, int32_t &Immediate,
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bool &ScalarSlotUsed) const;
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const TargetRegisterClass *getRegClassForNode(SelectionDAG &DAG,
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const SDValue &Op) const;
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bool fitsRegClass(SelectionDAG &DAG, const SDValue &Op,
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unsigned RegClass) const;
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void ensureSRegLimit(SelectionDAG &DAG, SDValue &Operand,
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unsigned RegClass, bool &ScalarSlotUsed) const;
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SDNode *legalizeOperands(MachineSDNode *N, SelectionDAG &DAG) const;
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void adjustWritemask(MachineSDNode *&N, SelectionDAG &DAG) const;
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MachineSDNode *AdjustRegClass(MachineSDNode *N, SelectionDAG &DAG) const;
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static SDValue performUCharToFloatCombine(SDNode *N,
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DAGCombinerInfo &DCI);
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SDValue performSHLPtrCombine(SDNode *N,
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unsigned AS,
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DAGCombinerInfo &DCI) const;
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public:
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SITargetLowering(TargetMachine &tm);
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bool isLegalAddressingMode(const AddrMode &AM,
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Type *Ty) const override;
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bool allowsMisalignedMemoryAccesses(EVT VT, unsigned AS,
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unsigned Align,
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bool *IsFast) const override;
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EVT getOptimalMemOpType(uint64_t Size, unsigned DstAlign,
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unsigned SrcAlign, bool IsMemset,
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bool ZeroMemset,
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bool MemcpyStrSrc,
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MachineFunction &MF) const override;
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TargetLoweringBase::LegalizeTypeAction
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getPreferredVectorAction(EVT VT) const override;
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bool shouldConvertConstantLoadToIntImm(const APInt &Imm,
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Type *Ty) const override;
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SDValue LowerFormalArguments(SDValue Chain, CallingConv::ID CallConv,
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bool isVarArg,
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const SmallVectorImpl<ISD::InputArg> &Ins,
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SDLoc DL, SelectionDAG &DAG,
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SmallVectorImpl<SDValue> &InVals) const override;
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MachineBasicBlock * EmitInstrWithCustomInserter(MachineInstr * MI,
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MachineBasicBlock * BB) const override;
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EVT getSetCCResultType(LLVMContext &Context, EVT VT) const override;
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MVT getScalarShiftAmountTy(EVT VT) const override;
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bool isFMAFasterThanFMulAndFAdd(EVT VT) const override;
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SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const override;
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SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const override;
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SDNode *PostISelFolding(MachineSDNode *N, SelectionDAG &DAG) const override;
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void AdjustInstrPostInstrSelection(MachineInstr *MI,
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SDNode *Node) const override;
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int32_t analyzeImmediate(const SDNode *N) const;
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SDValue CreateLiveInRegister(SelectionDAG &DAG, const TargetRegisterClass *RC,
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unsigned Reg, EVT VT) const override;
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};
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} // End namespace llvm
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#endif
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