1 //===-- SIInstrInfo.h - SI Instruction Info Interface -----------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// \brief Interface definition for SIInstrInfo.
13 //===----------------------------------------------------------------------===//
19 #include "AMDGPUInstrInfo.h"
20 #include "SIRegisterInfo.h"
24 class SIInstrInfo : public AMDGPUInstrInfo {
26 const SIRegisterInfo RI;
28 unsigned buildExtractSubReg(MachineBasicBlock::iterator MI,
29 MachineRegisterInfo &MRI,
30 MachineOperand &SuperReg,
31 const TargetRegisterClass *SuperRC,
33 const TargetRegisterClass *SubRC) const;
36 explicit SIInstrInfo(AMDGPUTargetMachine &tm);
38 const SIRegisterInfo &getRegisterInfo() const {
42 virtual void copyPhysReg(MachineBasicBlock &MBB,
43 MachineBasicBlock::iterator MI, DebugLoc DL,
44 unsigned DestReg, unsigned SrcReg,
47 void storeRegToStackSlot(MachineBasicBlock &MBB,
48 MachineBasicBlock::iterator MI,
49 unsigned SrcReg, bool isKill, int FrameIndex,
50 const TargetRegisterClass *RC,
51 const TargetRegisterInfo *TRI) const;
53 void loadRegFromStackSlot(MachineBasicBlock &MBB,
54 MachineBasicBlock::iterator MI,
55 unsigned DestReg, int FrameIndex,
56 const TargetRegisterClass *RC,
57 const TargetRegisterInfo *TRI) const;
59 unsigned commuteOpcode(unsigned Opcode) const;
61 virtual MachineInstr *commuteInstruction(MachineInstr *MI,
62 bool NewMI=false) const;
64 virtual unsigned getIEQOpcode() const {
65 llvm_unreachable("Unimplemented");
68 MachineInstr *buildMovInstr(MachineBasicBlock *MBB,
69 MachineBasicBlock::iterator I,
70 unsigned DstReg, unsigned SrcReg) const;
71 virtual bool isMov(unsigned Opcode) const;
73 virtual bool isSafeToMoveRegClassDefs(const TargetRegisterClass *RC) const;
74 bool isDS(uint16_t Opcode) const;
75 int isMIMG(uint16_t Opcode) const;
76 int isSMRD(uint16_t Opcode) const;
77 bool isVOP1(uint16_t Opcode) const;
78 bool isVOP2(uint16_t Opcode) const;
79 bool isVOP3(uint16_t Opcode) const;
80 bool isVOPC(uint16_t Opcode) const;
81 bool isInlineConstant(const MachineOperand &MO) const;
82 bool isLiteralConstant(const MachineOperand &MO) const;
84 virtual bool verifyInstruction(const MachineInstr *MI,
85 StringRef &ErrInfo) const;
87 bool isSALUInstr(const MachineInstr &MI) const;
88 static unsigned getVALUOp(const MachineInstr &MI);
89 bool isSALUOpSupportedOnVALU(const MachineInstr &MI) const;
91 /// \brief Return the correct register class for \p OpNo. For target-specific
92 /// instructions, this will return the register class that has been defined
93 /// in tablegen. For generic instructions, like REG_SEQUENCE it will return
94 /// the register class of its machine operand.
95 /// to infer the correct register class base on the other operands.
96 const TargetRegisterClass *getOpRegClass(const MachineInstr &MI,
97 unsigned OpNo) const;\
99 /// \returns true if it is legal for the operand at index \p OpNo
101 bool canReadVGPR(const MachineInstr &MI, unsigned OpNo) const;
103 /// \brief Legalize the \p OpIndex operand of this instruction by inserting
104 /// a MOV. For example:
105 /// ADD_I32_e32 VGPR0, 15
108 /// ADD_I32_e32 VGPR0, VGPR1
110 /// If the operand being legalized is a register, then a COPY will be used
112 void legalizeOpWithMove(MachineInstr *MI, unsigned OpIdx) const;
114 /// \brief Legalize all operands in this instruction. This function may
115 /// create new instruction and insert them before \p MI.
116 void legalizeOperands(MachineInstr *MI) const;
118 /// \brief Replace this instruction's opcode with the equivalent VALU
119 /// opcode. This function will also move the users of \p MI to the
120 /// VALU if necessary.
121 void moveToVALU(MachineInstr &MI) const;
123 virtual unsigned calculateIndirectAddress(unsigned RegIndex,
124 unsigned Channel) const;
126 virtual const TargetRegisterClass *getIndirectAddrRegClass() const;
128 virtual MachineInstrBuilder buildIndirectWrite(MachineBasicBlock *MBB,
129 MachineBasicBlock::iterator I,
132 unsigned OffsetReg) const;
134 virtual MachineInstrBuilder buildIndirectRead(MachineBasicBlock *MBB,
135 MachineBasicBlock::iterator I,
138 unsigned OffsetReg) const;
139 void reserveIndirectRegisters(BitVector &Reserved,
140 const MachineFunction &MF) const;
142 void LoadM0(MachineInstr *MoveRel, MachineBasicBlock::iterator I,
143 unsigned SavReg, unsigned IndexReg) const;
148 int getVOPe64(uint16_t Opcode);
149 int getCommuteRev(uint16_t Opcode);
150 int getCommuteOrig(uint16_t Opcode);
152 const uint64_t RSRC_DATA_FORMAT = 0xf00000000000LL;
155 } // End namespace AMDGPU
157 } // End namespace llvm
159 namespace SIInstrFlags {
161 // First 4 bits are the instruction encoding
168 #endif //SIINSTRINFO_H