const TargetRegisterClass *RC,
const MachineOperand &Op) const;
+ void swapOperands(MachineBasicBlock::iterator Inst) const;
+
void splitScalar64BitUnaryOp(SmallVectorImpl<MachineInstr *> &Worklist,
MachineInstr *Inst, unsigned Opcode) const;
return RI;
}
+ bool isReallyTriviallyReMaterializable(const MachineInstr *MI,
+ AliasAnalysis *AA) const override;
+
bool areLoadsFromSameBasePtr(SDNode *Load1, SDNode *Load2,
int64_t &Offset1,
int64_t &Offset2) const override;
bool expandPostRAPseudo(MachineBasicBlock::iterator MI) const override;
- unsigned commuteOpcode(unsigned Opcode) const;
+ // \brief Returns an opcode that can be used to move a value to a \p DstRC
+ // register. If there is no hardware instruction that can store to \p
+ // DstRC, then AMDGPU::COPY is returned.
+ unsigned getMovOpcode(const TargetRegisterClass *DstRC) const;
+ unsigned commuteOpcode(const MachineInstr &MI) const;
MachineInstr *commuteInstruction(MachineInstr *MI,
bool NewMI = false) const override;
bool isSafeToMoveRegClassDefs(const TargetRegisterClass *RC) const override;
+ bool FoldImmediate(MachineInstr *UseMI, MachineInstr *DefMI,
+ unsigned Reg, MachineRegisterInfo *MRI) const final;
+
bool isSALU(uint16_t Opcode) const {
return get(Opcode).TSFlags & SIInstrFlags::SALU;
}
return get(Opcode).TSFlags & SIInstrFlags::FLAT;
}
+ bool isWQM(uint16_t Opcode) const {
+ return get(Opcode).TSFlags & SIInstrFlags::WQM;
+ }
+
bool isInlineConstant(const APInt &Imm) const;
- bool isInlineConstant(const MachineOperand &MO) const;
- bool isLiteralConstant(const MachineOperand &MO) const;
+ bool isInlineConstant(const MachineOperand &MO, unsigned OpSize) const;
+ bool isLiteralConstant(const MachineOperand &MO, unsigned OpSize) const;
bool isImmOperandLegal(const MachineInstr *MI, unsigned OpNo,
const MachineOperand &MO) const;
- /// \brief Return true if the given offset Size in bytes can be folded into
- /// the immediate offsets of a memory instruction for the given address space.
- static bool canFoldOffset(unsigned OffsetSize, unsigned AS) LLVM_READNONE;
-
/// \brief Return true if this 64-bit VALU instruction has a 32-bit encoding.
/// This function will return false if you pass it a 32-bit instruction.
bool hasVALU32BitEncoding(unsigned Opcode) const;
/// \brief Returns true if this operand uses the constant bus.
bool usesConstantBus(const MachineRegisterInfo &MRI,
- const MachineOperand &MO) const;
+ const MachineOperand &MO,
+ unsigned OpSize) const;
/// \brief Return true if this instruction has any modifiers.
/// e.g. src[012]_mod, omod, clamp.
/// the register class of its machine operand.
/// to infer the correct register class base on the other operands.
const TargetRegisterClass *getOpRegClass(const MachineInstr &MI,
- unsigned OpNo) const;\
+ unsigned OpNo) const;
+
+ /// \brief Return the size in bytes of the operand OpNo on the given
+ // instruction opcode.
+ unsigned getOpSize(uint16_t Opcode, unsigned OpNo) const {
+ const MCOperandInfo &OpInfo = get(Opcode).OpInfo[OpNo];
+
+ if (OpInfo.RegClass == -1) {
+ // If this is an immediate operand, this must be a 32-bit literal.
+ assert(OpInfo.OperandType == MCOI::OPERAND_IMMEDIATE);
+ return 4;
+ }
+
+ return RI.getRegClass(OpInfo.RegClass)->getSize();
+ }
+
+ /// \brief This form should usually be preferred since it handles operands
+ /// with unknown register classes.
+ unsigned getOpSize(const MachineInstr &MI, unsigned OpNo) const {
+ return getOpRegClass(MI, OpNo)->getSize();
+ }
/// \returns true if it is legal for the operand at index \p OpNo
/// to read a VGPR.
int getVOPe32(uint16_t Opcode);
int getCommuteRev(uint16_t Opcode);
int getCommuteOrig(uint16_t Opcode);
- int getMCOpcode(uint16_t Opcode, unsigned Gen);
int getAddr64Inst(uint16_t Opcode);
int getAtomicRetOp(uint16_t Opcode);
int getAtomicNoRetOp(uint16_t Opcode);