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usr / src / contrib / llvm-project / llvm / lib / Target / Mips /

📁 ..
📁 AsmParser
📁 Disassembler
📁 MCTargetDesc
📄 MSA.txt(3.64 KB)
📄 MicroMips32r6InstrFormats.td(20.42 KB)
📄 MicroMips32r6InstrInfo.td(86.7 KB)
📄 MicroMipsDSPInstrFormats.td(6.55 KB)
📄 MicroMipsDSPInstrInfo.td(33.92 KB)
📄 MicroMipsInstrFPU.td(20.28 KB)
📄 MicroMipsInstrFormats.td(19.75 KB)
📄 MicroMipsInstrInfo.td(63.12 KB)
📄 MicroMipsSizeReduction.cpp(26.44 KB)
📄 Mips.h(1.85 KB)
📄 Mips.td(13.99 KB)
📄 Mips16FrameLowering.cpp(6.34 KB)
📄 Mips16FrameLowering.h(1.73 KB)
📄 Mips16HardFloat.cpp(15.87 KB)
📄 Mips16HardFloatInfo.cpp(1.45 KB)
📄 Mips16HardFloatInfo.h(1.33 KB)
📄 Mips16ISelDAGToDAG.cpp(7.33 KB)
📄 Mips16ISelDAGToDAG.h(1.8 KB)
📄 Mips16ISelLowering.cpp(29.05 KB)
📄 Mips16ISelLowering.h(3.29 KB)
📄 Mips16InstrFormats.td(16.29 KB)
📄 Mips16InstrInfo.cpp(17.93 KB)
📄 Mips16InstrInfo.h(5.33 KB)
📄 Mips16InstrInfo.td(51.26 KB)
📄 Mips16RegisterInfo.cpp(4.81 KB)
📄 Mips16RegisterInfo.h(1.56 KB)
📄 Mips32r6InstrFormats.td(14.85 KB)
📄 Mips32r6InstrInfo.td(47.55 KB)
📄 Mips64InstrInfo.td(58.62 KB)
📄 Mips64r6InstrInfo.td(15.93 KB)
📄 MipsAnalyzeImmediate.cpp(4.62 KB)
📄 MipsAnalyzeImmediate.h(2.24 KB)
📄 MipsAsmPrinter.cpp(43.89 KB)
📄 MipsAsmPrinter.h(6.04 KB)
📄 MipsBranchExpansion.cpp(29.72 KB)
📄 MipsCCState.cpp(6.71 KB)
📄 MipsCCState.h(6.14 KB)
📄 MipsCallLowering.cpp(23.62 KB)
📄 MipsCallLowering.h(3.35 KB)
📄 MipsCallingConv.td(17.55 KB)
📄 MipsCondMov.td(14.56 KB)
📄 MipsConstantIslandPass.cpp(62.17 KB)
📄 MipsDSPInstrFormats.td(7.39 KB)
📄 MipsDSPInstrInfo.td(68.68 KB)
📄 MipsDelaySlotFiller.cpp(32.55 KB)
📄 MipsEVAInstrFormats.td(2.51 KB)
📄 MipsEVAInstrInfo.td(8.52 KB)
📄 MipsExpandPseudo.cpp(30.1 KB)
📄 MipsFastISel.cpp(66.8 KB)
📄 MipsFrameLowering.cpp(5.75 KB)
📄 MipsFrameLowering.h(1.74 KB)
📄 MipsISelDAGToDAG.cpp(10.22 KB)
📄 MipsISelDAGToDAG.h(6.13 KB)
📄 MipsISelLowering.cpp(192.31 KB)
📄 MipsISelLowering.h(27.02 KB)
📄 MipsInstrFPU.td(44.82 KB)
📄 MipsInstrFormats.td(19.73 KB)
📄 MipsInstrInfo.cpp(28.1 KB)
📄 MipsInstrInfo.h(7.87 KB)
📄 MipsInstrInfo.td(138.02 KB)
📄 MipsInstructionSelector.cpp(34.44 KB)
📄 MipsLegalizerInfo.cpp(21.07 KB)
📄 MipsLegalizerInfo.h(1.19 KB)
📄 MipsMCInstLower.cpp(9.68 KB)
📄 MipsMCInstLower.h(1.77 KB)
📄 MipsMSAInstrFormats.td(9.18 KB)
📄 MipsMSAInstrInfo.td(182.92 KB)
📄 MipsMTInstrFormats.td(2.44 KB)
📄 MipsMTInstrInfo.td(7.59 KB)
📄 MipsMachineFunction.cpp(7.22 KB)
📄 MipsMachineFunction.h(4.37 KB)
📄 MipsModuleISelDAGToDAG.cpp(1.67 KB)
📄 MipsOptimizePICCall.cpp(9.78 KB)
📄 MipsOptionRecord.h(2.9 KB)
📄 MipsOs16.cpp(4.18 KB)
📄 MipsPfmCounters.td(706 B)
📄 MipsPreLegalizerCombiner.cpp(3.93 KB)
📄 MipsRegisterBankInfo.cpp(26.01 KB)
📄 MipsRegisterBankInfo.h(9.13 KB)
📄 MipsRegisterBanks.td(573 B)
📄 MipsRegisterInfo.cpp(10.41 KB)
📄 MipsRegisterInfo.h(2.82 KB)
📄 MipsRegisterInfo.td(23.18 KB)
📄 MipsSEFrameLowering.cpp(34.47 KB)
📄 MipsSEFrameLowering.h(1.88 KB)
📄 MipsSEISelDAGToDAG.cpp(49.41 KB)
📄 MipsSEISelDAGToDAG.h(5.92 KB)
📄 MipsSEISelLowering.cpp(140.76 KB)
📄 MipsSEISelLowering.h(6.25 KB)
📄 MipsSEInstrInfo.cpp(34.71 KB)
📄 MipsSEInstrInfo.h(5.34 KB)
📄 MipsSERegisterInfo.cpp(8.44 KB)
📄 MipsSERegisterInfo.h(1.2 KB)
📄 MipsSchedule.td(38.24 KB)
📄 MipsScheduleGeneric.td(71.71 KB)
📄 MipsScheduleP5600.td(27.85 KB)
📄 MipsSubtarget.cpp(10.72 KB)
📄 MipsSubtarget.h(13.43 KB)
📄 MipsTargetMachine.cpp(12.66 KB)
📄 MipsTargetMachine.h(3.08 KB)
📄 MipsTargetObjectFile.cpp(7.39 KB)
📄 MipsTargetObjectFile.h(2.02 KB)
📄 MipsTargetStreamer.h(14.58 KB)
📄 Relocation.txt(3.91 KB)
📁 TargetInfo

Editing: Mips16InstrInfo.h

//===- Mips16InstrInfo.h - Mips16 Instruction Information -------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file contains the Mips16 implementation of the TargetInstrInfo class.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_MIPS_MIPS16INSTRINFO_H
#define LLVM_LIB_TARGET_MIPS_MIPS16INSTRINFO_H

#include "Mips16RegisterInfo.h"
#include "MipsInstrInfo.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/Support/MathExtras.h"
#include <cstdint>

namespace llvm {

class MCInstrDesc;
class MipsSubtarget;

class Mips16InstrInfo : public MipsInstrInfo {
  const Mips16RegisterInfo RI;

public:
  explicit Mips16InstrInfo(const MipsSubtarget &STI);

const MipsRegisterInfo &getRegisterInfo() const override;

/// isLoadFromStackSlot - If the specified machine instruction is a direct
  /// load from a stack slot, return the virtual or physical register number of
  /// the destination along with the FrameIndex of the loaded stack slot.  If
  /// not, return 0.  This predicate must return 0 if the instruction has
  /// any side effects other than loading from the stack slot.
  unsigned isLoadFromStackSlot(const MachineInstr &MI,
                               int &FrameIndex) const override;

/// isStoreToStackSlot - If the specified machine instruction is a direct
  /// store to a stack slot, return the virtual or physical register number of
  /// the source reg along with the FrameIndex of the loaded stack slot.  If
  /// not, return 0.  This predicate must return 0 if the instruction has
  /// any side effects other than storing to the stack slot.
  unsigned isStoreToStackSlot(const MachineInstr &MI,
                              int &FrameIndex) const override;

void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
                   const DebugLoc &DL, MCRegister DestReg, MCRegister SrcReg,
                   bool KillSrc) const override;

void storeRegToStack(MachineBasicBlock &MBB,
                       MachineBasicBlock::iterator MBBI,
                       Register SrcReg, bool isKill, int FrameIndex,
                       const TargetRegisterClass *RC,
                       const TargetRegisterInfo *TRI,
                       int64_t Offset) const override;

void loadRegFromStack(MachineBasicBlock &MBB,
                        MachineBasicBlock::iterator MBBI,
                        Register DestReg, int FrameIndex,
                        const TargetRegisterClass *RC,
                        const TargetRegisterInfo *TRI,
                        int64_t Offset) const override;

bool expandPostRAPseudo(MachineInstr &MI) const override;

unsigned getOppositeBranchOpc(unsigned Opc) const override;

// Adjust SP by FrameSize bytes. Save RA, S0, S1
  void makeFrame(unsigned SP, int64_t FrameSize, MachineBasicBlock &MBB,
                 MachineBasicBlock::iterator I) const;

// Adjust SP by FrameSize bytes. Restore RA, S0, S1
  void restoreFrame(unsigned SP, int64_t FrameSize, MachineBasicBlock &MBB,
                      MachineBasicBlock::iterator I) const;

/// Adjust SP by Amount bytes.
  void adjustStackPtr(unsigned SP, int64_t Amount, MachineBasicBlock &MBB,
                      MachineBasicBlock::iterator I) const override;

/// Emit a series of instructions to load an immediate.
  // This is to adjust some FrameReg. We return the new register to be used
  // in place of FrameReg and the adjusted immediate field (&NewImm)
  unsigned loadImmediate(unsigned FrameReg, int64_t Imm, MachineBasicBlock &MBB,
                         MachineBasicBlock::iterator II, const DebugLoc &DL,
                         unsigned &NewImm) const;

static bool validImmediate(unsigned Opcode, unsigned Reg, int64_t Amount);

static bool validSpImm8(int offset) {
    return ((offset & 7) == 0) && isInt<11>(offset);
  }

// build the proper one based on the Imm field

const MCInstrDesc& AddiuSpImm(int64_t Imm) const;

void BuildAddiuSpImm
    (MachineBasicBlock &MBB, MachineBasicBlock::iterator I, int64_t Imm) const;

protected:
  /// If the specific machine instruction is a instruction that moves/copies
  /// value from one register to another register return destination and source
  /// registers as machine operands.
  Optional<DestSourcePair> isCopyInstrImpl(const MachineInstr &MI) const override;

private:
  unsigned getAnalyzableBrOpc(unsigned Opc) const override;

void ExpandRetRA16(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
                   unsigned Opc) const;

// Adjust SP by Amount bytes where bytes can be up to 32bit number.
  void adjustStackPtrBig(unsigned SP, int64_t Amount, MachineBasicBlock &MBB,
                         MachineBasicBlock::iterator I,
                         unsigned Reg1, unsigned Reg2) const;

// Adjust SP by Amount bytes where bytes can be up to 32bit number.
  void adjustStackPtrBigUnrestricted(unsigned SP, int64_t Amount,
                                     MachineBasicBlock &MBB,
                                     MachineBasicBlock::iterator I) const;
};

} // end namespace llvm

#endif // LLVM_LIB_TARGET_MIPS_MIPS16INSTRINFO_H

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Editing: Mips16InstrInfo.h

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