1 //===-- MipsSEISelDAGToDAG.h - A Dag to Dag Inst Selector for MipsSE -----===// 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 // Subclass of MipsDAGToDAGISel specialized for mips32/64. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_LIB_TARGET_MIPS_MIPSSEISELDAGTODAG_H 15 #define LLVM_LIB_TARGET_MIPS_MIPSSEISELDAGTODAG_H 16 17 #include "MipsISelDAGToDAG.h" 18 19 namespace llvm { 20 21 class MipsSEDAGToDAGISel : public MipsDAGToDAGISel { 22 23 public: MipsSEDAGToDAGISel(MipsTargetMachine & TM)24 explicit MipsSEDAGToDAGISel(MipsTargetMachine &TM) : MipsDAGToDAGISel(TM) {} 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, SDLoc dl, 38 EVT Ty, bool HasLo, bool HasHi); 39 40 SDNode *selectAddESubE(unsigned MOp, SDValue InFlag, SDValue CmpLHS, 41 SDLoc DL, SDNode *Node) const; 42 43 bool selectAddrFrameIndex(SDValue Addr, SDValue &Base, SDValue &Offset) const; 44 bool selectAddrFrameIndexOffset(SDValue Addr, SDValue &Base, SDValue &Offset, 45 unsigned OffsetBits) const; 46 47 bool selectAddrRegImm(SDValue Addr, SDValue &Base, 48 SDValue &Offset) const override; 49 50 bool selectAddrRegReg(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 selectAddrRegImm10(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 selectIntAddrMM(SDValue Addr, SDValue &Base, 72 SDValue &Offset) const override; 73 74 bool selectIntAddrLSL2MM(SDValue Addr, SDValue &Base, 75 SDValue &Offset) const override; 76 77 bool selectIntAddrMSA(SDValue Addr, SDValue &Base, 78 SDValue &Offset) const override; 79 80 /// \brief Select constant vector splats. 81 bool selectVSplat(SDNode *N, APInt &Imm, 82 unsigned MinSizeInBits) const override; 83 /// \brief Select constant vector splats whose value fits in a given integer. 84 bool selectVSplatCommon(SDValue N, SDValue &Imm, bool Signed, 85 unsigned ImmBitSize) const; 86 /// \brief Select constant vector splats whose value fits in a uimm1. 87 bool selectVSplatUimm1(SDValue N, SDValue &Imm) const override; 88 /// \brief Select constant vector splats whose value fits in a uimm2. 89 bool selectVSplatUimm2(SDValue N, SDValue &Imm) const override; 90 /// \brief Select constant vector splats whose value fits in a uimm3. 91 bool selectVSplatUimm3(SDValue N, SDValue &Imm) const override; 92 /// \brief Select constant vector splats whose value fits in a uimm4. 93 bool selectVSplatUimm4(SDValue N, SDValue &Imm) const override; 94 /// \brief Select constant vector splats whose value fits in a uimm5. 95 bool selectVSplatUimm5(SDValue N, SDValue &Imm) const override; 96 /// \brief Select constant vector splats whose value fits in a uimm6. 97 bool selectVSplatUimm6(SDValue N, SDValue &Imm) const override; 98 /// \brief Select constant vector splats whose value fits in a uimm8. 99 bool selectVSplatUimm8(SDValue N, SDValue &Imm) const override; 100 /// \brief Select constant vector splats whose value fits in a simm5. 101 bool selectVSplatSimm5(SDValue N, SDValue &Imm) const override; 102 /// \brief Select constant vector splats whose value is a power of 2. 103 bool selectVSplatUimmPow2(SDValue N, SDValue &Imm) const override; 104 /// \brief Select constant vector splats whose value is the inverse of a 105 /// power of 2. 106 bool selectVSplatUimmInvPow2(SDValue N, SDValue &Imm) const override; 107 /// \brief Select constant vector splats whose value is a run of set bits 108 /// ending at the most significant bit 109 bool selectVSplatMaskL(SDValue N, SDValue &Imm) const override; 110 /// \brief Select constant vector splats whose value is a run of set bits 111 /// starting at bit zero. 112 bool selectVSplatMaskR(SDValue N, SDValue &Imm) const override; 113 114 std::pair<bool, SDNode*> selectNode(SDNode *Node) override; 115 116 void processFunctionAfterISel(MachineFunction &MF) override; 117 118 // Insert instructions to initialize the global base register in the 119 // first MBB of the function. 120 void initGlobalBaseReg(MachineFunction &MF); 121 122 bool SelectInlineAsmMemoryOperand(const SDValue &Op, 123 unsigned ConstraintID, 124 std::vector<SDValue> &OutOps) override; 125 }; 126 127 FunctionPass *createMipsSEISelDag(MipsTargetMachine &TM); 128 129 } 130 131 #endif 132