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 147