llvm/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, CodeGenOptLevel OL)
  24       : MipsDAGToDAGISel(TM, OL) {}
  25
  26 private:
  27
  28   bool runOnMachineFunction(MachineFunction &MF) override;
  29
  30   void addDSPCtrlRegOperands(bool IsDef, MachineInstr &MI,
  31                              MachineFunction &MF);
  32
  33   unsigned getMSACtrlReg(const SDValue RegIdx) const;
  34
  35   bool replaceUsesWithZeroReg(MachineRegisterInfo *MRI, const MachineInstr&);
  36
  37   std::pair<SDNode *, SDNode *> selectMULT(SDNode *N, unsigned Opc,
  38                                            const SDLoc &dl, EVT Ty, bool HasLo,
  39                                            bool HasHi);
  40
  41   void selectAddE(SDNode *Node, const SDLoc &DL) const;
  42
  43   bool selectAddrFrameIndex(SDValue Addr, SDValue &Base, SDValue &Offset) const;
  44   bool selectAddrFrameIndexOffset(SDValue Addr, SDValue &Base, SDValue &Offset,
  45                                   unsigned OffsetBits,
  46                                   unsigned ShiftAmount) const;
  47
  48   bool selectAddrRegImm(SDValue Addr, SDValue &Base,
  49                         SDValue &Offset) const override;
  50
  51   bool selectAddrDefault(SDValue Addr, SDValue &Base,
  52                          SDValue &Offset) const override;
  53
  54   bool selectIntAddr(SDValue Addr, SDValue &Base,
  55                      SDValue &Offset) const override;
  56
  57   bool selectAddrRegImm9(SDValue Addr, SDValue &Base,
  58                          SDValue &Offset) const;
  59
  60   bool selectAddrRegImm11(SDValue Addr, SDValue &Base,
  61                           SDValue &Offset) const;
  62
  63   bool selectAddrRegImm12(SDValue Addr, SDValue &Base,
  64                           SDValue &Offset) const;
  65
  66   bool selectAddrRegImm16(SDValue Addr, SDValue &Base,
  67                           SDValue &Offset) const;
  68
  69   bool selectIntAddr11MM(SDValue Addr, SDValue &Base,
  70                          SDValue &Offset) const override;
  71
  72   bool selectIntAddr12MM(SDValue Addr, SDValue &Base,
  73                          SDValue &Offset) const override;
  74
  75   bool selectIntAddr16MM(SDValue Addr, SDValue &Base,
  76                          SDValue &Offset) const override;
  77
  78   bool selectIntAddrLSL2MM(SDValue Addr, SDValue &Base,
  79                            SDValue &Offset) const override;
  80
  81   bool selectIntAddrSImm10(SDValue Addr, SDValue &Base,
  82                            SDValue &Offset) const override;
  83
  84   bool selectIntAddrSImm10Lsl1(SDValue Addr, SDValue &Base,
  85                                SDValue &Offset) const override;
  86
  87   bool selectIntAddrSImm10Lsl2(SDValue Addr, SDValue &Base,
  88                                SDValue &Offset) const override;
  89
  90   bool selectIntAddrSImm10Lsl3(SDValue Addr, SDValue &Base,
  91                                SDValue &Offset) const override;
  92
  93   /// Select constant vector splats.
  94   bool selectVSplat(SDNode *N, APInt &Imm,
  95                     unsigned MinSizeInBits) const override;
  96   /// Select constant vector splats whose value fits in a given integer.
  97   bool selectVSplatCommon(SDValue N, SDValue &Imm, bool Signed,
  98                                   unsigned ImmBitSize) const;
  99   /// Select constant vector splats whose value fits in a uimm1.
 100   bool selectVSplatUimm1(SDValue N, SDValue &Imm) const override;
 101   /// Select constant vector splats whose value fits in a uimm2.
 102   bool selectVSplatUimm2(SDValue N, SDValue &Imm) const override;
 103   /// Select constant vector splats whose value fits in a uimm3.
 104   bool selectVSplatUimm3(SDValue N, SDValue &Imm) const override;
 105   /// Select constant vector splats whose value fits in a uimm4.
 106   bool selectVSplatUimm4(SDValue N, SDValue &Imm) const override;
 107   /// Select constant vector splats whose value fits in a uimm5.
 108   bool selectVSplatUimm5(SDValue N, SDValue &Imm) const override;
 109   /// Select constant vector splats whose value fits in a uimm6.
 110   bool selectVSplatUimm6(SDValue N, SDValue &Imm) const override;
 111   /// Select constant vector splats whose value fits in a uimm8.
 112   bool selectVSplatUimm8(SDValue N, SDValue &Imm) const override;
 113   /// Select constant vector splats whose value fits in a simm5.
 114   bool selectVSplatSimm5(SDValue N, SDValue &Imm) const override;
 115   /// Select constant vector splats whose value is a power of 2.
 116   bool selectVSplatUimmPow2(SDValue N, SDValue &Imm) const override;
 117   /// Select constant vector splats whose value is the inverse of a
 118   /// power of 2.
 119   bool selectVSplatUimmInvPow2(SDValue N, SDValue &Imm) const override;
 120   /// Select constant vector splats whose value is a run of set bits
 121   /// ending at the most significant bit.
 122   bool selectVSplatMaskL(SDValue N, SDValue &Imm) const override;
 123   /// Select constant vector splats whose value is a run of set bits
 124   /// starting at bit zero.
 125   bool selectVSplatMaskR(SDValue N, SDValue &Imm) const override;
 126
 127   bool trySelect(SDNode *Node) override;
 128
 129   // Emits proper ABI for _mcount profiling calls.
 130   void emitMCountABI(MachineInstr &MI, MachineBasicBlock &MBB,
 131                      MachineFunction &MF);
 132
 133   void processFunctionAfterISel(MachineFunction &MF) override;
 134
 135   bool SelectInlineAsmMemoryOperand(const SDValue &Op,
 136                                     InlineAsm::ConstraintCode ConstraintID,
 137                                     std::vector<SDValue> &OutOps) override;
 138 };
 139
 140 class MipsSEDAGToDAGISelLegacy : public MipsDAGToDAGISelLegacy {
 141 public:
 142   explicit MipsSEDAGToDAGISelLegacy(MipsTargetMachine &TM, CodeGenOptLevel OL);
 143   void getAnalysisUsage(AnalysisUsage &AU) const override;
 144 };
 145
 146 FunctionPass *createMipsSEISelDag(MipsTargetMachine &TM,
 147                                   CodeGenOptLevel OptLevel);
 148 }
 149
 150 #endif