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