lib/Target/Mips/MipsSEISelDAGToDAG.h

   1 //===-- MipsSEISelDAGToDAG.h - A Dag to Dag Inst Selector for MipsSE -----===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // Subclass of MipsDAGToDAGISel specialized for mips32/64.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef LLVM_LIB_TARGET_MIPS_MIPSSEISELDAGTODAG_H
  14 #define LLVM_LIB_TARGET_MIPS_MIPSSEISELDAGTODAG_H
  15
  16 #include "MipsISelDAGToDAG.h"
  17
  18 namespace llvm {
  19
  20 class MipsSEDAGToDAGISel : public MipsDAGToDAGISel {
  21
  22 public:
  23   explicit MipsSEDAGToDAGISel(MipsTargetMachine &TM, CodeGenOpt::Level OL)
  24       : MipsDAGToDAGISel(TM, OL) {}
  25
  26 private:
  27
  28   bool runOnMachineFunction(MachineFunction &MF) override;
  29
  30   void getAnalysisUsage(AnalysisUsage &AU) const override;
  31
  32   void addDSPCtrlRegOperands(bool IsDef, MachineInstr &MI,
  33                              MachineFunction &MF);
  34
  35   unsigned getMSACtrlReg(const SDValue RegIdx) const;
  36
  37   bool replaceUsesWithZeroReg(MachineRegisterInfo *MRI, const MachineInstr&);
  38
  39   std::pair<SDNode *, SDNode *> selectMULT(SDNode *N, unsigned Opc,
  40                                            const SDLoc &dl, EVT Ty, bool HasLo,
  41                                            bool HasHi);
  42
  43   void selectAddE(SDNode *Node, const SDLoc &DL) const;
  44
  45   bool selectAddrFrameIndex(SDValue Addr, SDValue &Base, SDValue &Offset) const;
  46   bool selectAddrFrameIndexOffset(SDValue Addr, SDValue &Base, SDValue &Offset,
  47                                   unsigned OffsetBits,
  48                                   unsigned ShiftAmount) const;
  49
  50   bool selectAddrRegImm(SDValue Addr, SDValue &Base,
  51                         SDValue &Offset) const override;
  52
  53   bool selectAddrDefault(SDValue Addr, SDValue &Base,
  54                          SDValue &Offset) const override;
  55
  56   bool selectIntAddr(SDValue Addr, SDValue &Base,
  57                      SDValue &Offset) const override;
  58
  59   bool selectAddrRegImm9(SDValue Addr, SDValue &Base,
  60                          SDValue &Offset) const;
  61
  62   bool selectAddrRegImm11(SDValue Addr, SDValue &Base,
  63                           SDValue &Offset) const;
  64
  65   bool selectAddrRegImm12(SDValue Addr, SDValue &Base,
  66                           SDValue &Offset) const;
  67
  68   bool selectAddrRegImm16(SDValue Addr, SDValue &Base,
  69                           SDValue &Offset) const;
  70
  71   bool selectIntAddr11MM(SDValue Addr, SDValue &Base,
  72                          SDValue &Offset) const override;
  73
  74   bool selectIntAddr12MM(SDValue Addr, SDValue &Base,
  75                          SDValue &Offset) const override;
  76
  77   bool selectIntAddr16MM(SDValue Addr, SDValue &Base,
  78                          SDValue &Offset) const override;
  79
  80   bool selectIntAddrLSL2MM(SDValue Addr, SDValue &Base,
  81                            SDValue &Offset) const override;
  82
  83   bool selectIntAddrSImm10(SDValue Addr, SDValue &Base,
  84                            SDValue &Offset) const override;
  85
  86   bool selectIntAddrSImm10Lsl1(SDValue Addr, SDValue &Base,
  87                                SDValue &Offset) const override;
  88
  89   bool selectIntAddrSImm10Lsl2(SDValue Addr, SDValue &Base,
  90                                SDValue &Offset) const override;
  91
  92   bool selectIntAddrSImm10Lsl3(SDValue Addr, SDValue &Base,
  93                                SDValue &Offset) const override;
  94
  95   /// Select constant vector splats.
  96   bool selectVSplat(SDNode *N, APInt &Imm,
  97                     unsigned MinSizeInBits) const override;
  98   /// Select constant vector splats whose value fits in a given integer.
  99   bool selectVSplatCommon(SDValue N, SDValue &Imm, bool Signed,
 100                                   unsigned ImmBitSize) const;
 101   /// Select constant vector splats whose value fits in a uimm1.
 102   bool selectVSplatUimm1(SDValue N, SDValue &Imm) const override;
 103   /// Select constant vector splats whose value fits in a uimm2.
 104   bool selectVSplatUimm2(SDValue N, SDValue &Imm) const override;
 105   /// Select constant vector splats whose value fits in a uimm3.
 106   bool selectVSplatUimm3(SDValue N, SDValue &Imm) const override;
 107   /// Select constant vector splats whose value fits in a uimm4.
 108   bool selectVSplatUimm4(SDValue N, SDValue &Imm) const override;
 109   /// Select constant vector splats whose value fits in a uimm5.
 110   bool selectVSplatUimm5(SDValue N, SDValue &Imm) const override;
 111   /// Select constant vector splats whose value fits in a uimm6.
 112   bool selectVSplatUimm6(SDValue N, SDValue &Imm) const override;
 113   /// Select constant vector splats whose value fits in a uimm8.
 114   bool selectVSplatUimm8(SDValue N, SDValue &Imm) const override;
 115   /// Select constant vector splats whose value fits in a simm5.
 116   bool selectVSplatSimm5(SDValue N, SDValue &Imm) const override;
 117   /// Select constant vector splats whose value is a power of 2.
 118   bool selectVSplatUimmPow2(SDValue N, SDValue &Imm) const override;
 119   /// Select constant vector splats whose value is the inverse of a
 120   /// power of 2.
 121   bool selectVSplatUimmInvPow2(SDValue N, SDValue &Imm) const override;
 122   /// Select constant vector splats whose value is a run of set bits
 123   /// ending at the most significant bit.
 124   bool selectVSplatMaskL(SDValue N, SDValue &Imm) const override;
 125   /// Select constant vector splats whose value is a run of set bits
 126   /// starting at bit zero.
 127   bool selectVSplatMaskR(SDValue N, SDValue &Imm) const override;
 128
 129   bool trySelect(SDNode *Node) override;
 130
 131   // Emits proper ABI for _mcount profiling calls.
 132   void emitMCountABI(MachineInstr &MI, MachineBasicBlock &MBB,
 133                      MachineFunction &MF);
 134
 135   void processFunctionAfterISel(MachineFunction &MF) override;
 136
 137   bool SelectInlineAsmMemoryOperand(const SDValue &Op,
 138                                     unsigned ConstraintID,
 139                                     std::vector<SDValue> &OutOps) override;
 140 };
 141
 142 FunctionPass *createMipsSEISelDag(MipsTargetMachine &TM,
 143                                   CodeGenOpt::Level OptLevel);
 144 }
 145
 146 #endif