| //===- HexagonMCInst.h - Hexagon sub-class of MCInst ----------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This class extends MCInst to allow some VLIW annotations. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIB_TARGET_HEXAGON_MCTARGETDESC_HEXAGONMCINST_H |
| #define LLVM_LIB_TARGET_HEXAGON_MCTARGETDESC_HEXAGONMCINST_H |
| |
| #include "HexagonTargetMachine.h" |
| #include "llvm/MC/MCInst.h" |
| #include <memory> |
| |
| extern "C" void LLVMInitializeHexagonTargetMC(); |
| namespace llvm { |
| class MCOperand; |
| |
| class HexagonMCInst : public MCInst { |
| friend void ::LLVMInitializeHexagonTargetMC(); |
| // Used to access TSFlags |
| static std::unique_ptr <MCInstrInfo const> MCII; |
| |
| public: |
| explicit HexagonMCInst(); |
| HexagonMCInst(const MCInstrDesc &mcid); |
| |
| static void AppendImplicitOperands(MCInst &MCI); |
| static std::bitset<16> GetImplicitBits(MCInst const &MCI); |
| static void SetImplicitBits(MCInst &MCI, std::bitset<16> Bits); |
| static void SanityCheckImplicitOperands(MCInst const &MCI) { |
| assert(MCI.getNumOperands() >= 2 && "At least the two implicit operands"); |
| assert(MCI.getOperand(MCI.getNumOperands() - 1).isInst() && |
| "Implicit bits and flags"); |
| assert(MCI.getOperand(MCI.getNumOperands() - 2).isImm() && |
| "Parent pointer"); |
| } |
| |
| void setPacketBegin(bool Y); |
| bool isPacketBegin() const; |
| static const size_t packetBeginIndex = 0; |
| void setPacketEnd(bool Y); |
| bool isPacketEnd() const; |
| static const size_t packetEndIndex = 1; |
| void resetPacket(); |
| |
| // Return the slots used by the insn. |
| unsigned getUnits(const HexagonTargetMachine *TM) const; |
| |
| // Return the Hexagon ISA class for the insn. |
| unsigned getType() const; |
| |
| MCInstrDesc const &getDesc() const; |
| |
| // Return whether the insn is an actual insn. |
| bool isCanon() const; |
| |
| // Return whether the insn is a prefix. |
| bool isPrefix() const; |
| |
| // Return whether the insn is solo, i.e., cannot be in a packet. |
| bool isSolo() const; |
| |
| // Return whether the instruction needs to be constant extended. |
| bool isConstExtended() const; |
| |
| // Return constant extended operand number. |
| unsigned short getCExtOpNum(void) const; |
| |
| // Return whether the insn is a new-value consumer. |
| bool isNewValue() const; |
| |
| // Return whether the instruction is a legal new-value producer. |
| bool hasNewValue() const; |
| |
| // Return the operand that consumes or produces a new value. |
| const MCOperand &getNewValue() const; |
| |
| // Return number of bits in the constant extended operand. |
| unsigned getBitCount(void) const; |
| |
| private: |
| // Return whether the instruction must be always extended. |
| bool isExtended() const; |
| |
| // Return true if the insn may be extended based on the operand value. |
| bool isExtendable() const; |
| |
| // Return true if the operand can be constant extended. |
| bool isOperandExtended(const unsigned short OperandNum) const; |
| |
| // Return the min value that a constant extendable operand can have |
| // without being extended. |
| int getMinValue() const; |
| |
| // Return the max value that a constant extendable operand can have |
| // without being extended. |
| int getMaxValue() const; |
| }; |
| } |
| |
| #endif |