LLVM  4.0.0
Public Member Functions | Static Public Member Functions | List of all members
llvm::Mips16InstrInfo Class Reference

#include <Mips16InstrInfo.h>

Inheritance diagram for llvm::Mips16InstrInfo:
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Collaboration diagram for llvm::Mips16InstrInfo:
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Public Member Functions

 Mips16InstrInfo (const MipsSubtarget &STI)
 
const MipsRegisterInfogetRegisterInfo () const override
 getRegisterInfo - TargetInstrInfo is a superset of MRegister info. More...
 
unsigned isLoadFromStackSlot (const MachineInstr &MI, int &FrameIndex) 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. More...
 
unsigned isStoreToStackSlot (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. More...
 
void copyPhysReg (MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, const DebugLoc &DL, unsigned DestReg, unsigned SrcReg, bool KillSrc) const override
 
void storeRegToStack (MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, unsigned SrcReg, bool isKill, int FrameIndex, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI, int64_t Offset) const override
 
void loadRegFromStack (MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, unsigned 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
 GetOppositeBranchOpc - Return the inverse of the specified opcode, e.g. More...
 
void makeFrame (unsigned SP, int64_t FrameSize, MachineBasicBlock &MBB, MachineBasicBlock::iterator I) const
 
void restoreFrame (unsigned SP, int64_t FrameSize, MachineBasicBlock &MBB, MachineBasicBlock::iterator I) const
 
void adjustStackPtr (unsigned SP, int64_t Amount, MachineBasicBlock &MBB, MachineBasicBlock::iterator I) const override
 Adjust SP by Amount bytes. More...
 
unsigned loadImmediate (unsigned FrameReg, int64_t Imm, MachineBasicBlock &MBB, MachineBasicBlock::iterator II, const DebugLoc &DL, unsigned &NewImm) const
 Emit a series of instructions to load an immediate. More...
 
const MCInstrDescAddiuSpImm (int64_t Imm) const
 
void BuildAddiuSpImm (MachineBasicBlock &MBB, MachineBasicBlock::iterator I, int64_t Imm) const
 
unsigned getInlineAsmLength (const char *Str, const MCAsmInfo &MAI) const override
 Measure the specified inline asm to determine an approximation of its length. More...
 
- Public Member Functions inherited from llvm::MipsInstrInfo
 MipsInstrInfo (const MipsSubtarget &STI, unsigned UncondBrOpc)
 
bool analyzeBranch (MachineBasicBlock &MBB, MachineBasicBlock *&TBB, MachineBasicBlock *&FBB, SmallVectorImpl< MachineOperand > &Cond, bool AllowModify) const override
 Branch Analysis. More...
 
unsigned removeBranch (MachineBasicBlock &MBB, int *BytesRemoved=nullptr) const override
 
unsigned insertBranch (MachineBasicBlock &MBB, MachineBasicBlock *TBB, MachineBasicBlock *FBB, ArrayRef< MachineOperand > Cond, const DebugLoc &DL, int *BytesAdded=nullptr) const override
 
bool reverseBranchCondition (SmallVectorImpl< MachineOperand > &Cond) const override
 reverseBranchCondition - Return the inverse opcode of the specified Branch instruction. More...
 
BranchType analyzeBranch (MachineBasicBlock &MBB, MachineBasicBlock *&TBB, MachineBasicBlock *&FBB, SmallVectorImpl< MachineOperand > &Cond, bool AllowModify, SmallVectorImpl< MachineInstr * > &BranchInstrs) const
 
unsigned getEquivalentCompactForm (const MachineBasicBlock::iterator I) const
 Determine the opcode of a non-delay slot form for a branch if one exists. More...
 
bool SafeInForbiddenSlot (const MachineInstr &MI) const
 Predicate to determine if an instruction can go in a forbidden slot. More...
 
bool HasForbiddenSlot (const MachineInstr &MI) const
 Predicate to determine if an instruction has a forbidden slot. More...
 
void insertNoop (MachineBasicBlock &MBB, MachineBasicBlock::iterator MI) const override
 Insert nop instruction when hazard condition is found. More...
 
unsigned getInstSizeInBytes (const MachineInstr &MI) const override
 Return the number of bytes of code the specified instruction may be. More...
 
void storeRegToStackSlot (MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, unsigned SrcReg, bool isKill, int FrameIndex, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI) const override
 
void loadRegFromStackSlot (MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, unsigned DestReg, int FrameIndex, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI) const override
 
MachineInstrBuilder genInstrWithNewOpc (unsigned NewOpc, MachineBasicBlock::iterator I) const
 Create an instruction which has the same operands and memory operands as MI but has a new opcode. More...
 

Static Public Member Functions

static bool validImmediate (unsigned Opcode, unsigned Reg, int64_t Amount)
 
static bool validSpImm8 (int offset)
 
- Static Public Member Functions inherited from llvm::MipsInstrInfo
static const MipsInstrInfocreate (MipsSubtarget &STI)
 

Additional Inherited Members

- Public Types inherited from llvm::MipsInstrInfo
enum  BranchType {
  BT_None, BT_NoBranch, BT_Uncond, BT_Cond,
  BT_CondUncond, BT_Indirect
}
 
- Protected Member Functions inherited from llvm::MipsInstrInfo
bool isZeroImm (const MachineOperand &op) const
 
MachineMemOperandGetMemOperand (MachineBasicBlock &MBB, int FI, MachineMemOperand::Flags Flags) const
 
- Protected Attributes inherited from llvm::MipsInstrInfo
const MipsSubtargetSubtarget
 
unsigned UncondBrOpc
 

Detailed Description

Definition at line 22 of file Mips16InstrInfo.h.

Constructor & Destructor Documentation

Mips16InstrInfo::Mips16InstrInfo ( const MipsSubtarget STI)
explicit

Definition at line 32 of file Mips16InstrInfo.cpp.

Member Function Documentation

const MCInstrDesc & Mips16InstrInfo::AddiuSpImm ( int64_t  Imm) const

Definition at line 439 of file Mips16InstrInfo.cpp.

References validSpImm8().

void Mips16InstrInfo::adjustStackPtr ( unsigned  SP,
int64_t  Amount,
MachineBasicBlock MBB,
MachineBasicBlock::iterator  I 
) const
overridevirtual

Adjust SP by Amount bytes.

Implements llvm::MipsInstrInfo.

Definition at line 291 of file Mips16InstrInfo.cpp.

References BuildAddiuSpImm(), and llvm::isInt< 16 >().

void Mips16InstrInfo::BuildAddiuSpImm ( MachineBasicBlock MBB,
MachineBasicBlock::iterator  I,
int64_t  Imm 
) const
void Mips16InstrInfo::copyPhysReg ( MachineBasicBlock MBB,
MachineBasicBlock::iterator  MI,
const DebugLoc DL,
unsigned  DestReg,
unsigned  SrcReg,
bool  KillSrc 
) const
override
bool Mips16InstrInfo::expandPostRAPseudo ( MachineInstr MI) const
override
unsigned Mips16InstrInfo::getInlineAsmLength ( const char *  Str,
const MCAsmInfo MAI 
) const
override

Measure the specified inline asm to determine an approximation of its length.

Comments (which run till the next SeparatorString or newline) do not count as an instruction. Any other non-whitespace text is considered an instruction, with multiple instructions separated by SeparatorString or newlines. Variable-length instructions are not handled here; this function may be overloaded in the target code to do that. We implement the special case of the .space directive taking only an integer argument, which is the size in bytes. This is used for creating inline code spacing for testing purposes using inline assembly.

Definition at line 490 of file Mips16InstrInfo.cpp.

References llvm::StringRef::data(), llvm::dbgs(), DEBUG, llvm::MCAsmInfo::getCommentString(), llvm::MCAsmInfo::getMaxInstLength(), llvm::MCAsmInfo::getSeparatorString(), and llvm::StringRef::size().

unsigned Mips16InstrInfo::getOppositeBranchOpc ( unsigned  Opc) const
overridevirtual

GetOppositeBranchOpc - Return the inverse of the specified opcode, e.g.

turning BEQ to BNE.

Implements llvm::MipsInstrInfo.

Definition at line 143 of file Mips16InstrInfo.cpp.

References llvm_unreachable.

const MipsRegisterInfo & Mips16InstrInfo::getRegisterInfo ( ) const
overridevirtual

getRegisterInfo - TargetInstrInfo is a superset of MRegister info.

As such, whenever a client has an instance of instruction info, it should always be able to get register info as well (through this method).

Implements llvm::MipsInstrInfo.

Definition at line 35 of file Mips16InstrInfo.cpp.

Referenced by llvm::Mips16FrameLowering::determineCalleeSaves().

unsigned Mips16InstrInfo::isLoadFromStackSlot ( const MachineInstr MI,
int &  FrameIndex 
) 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.

Definition at line 44 of file Mips16InstrInfo.cpp.

unsigned Mips16InstrInfo::isStoreToStackSlot ( 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.

Definition at line 54 of file Mips16InstrInfo.cpp.

unsigned Mips16InstrInfo::loadImmediate ( unsigned  FrameReg,
int64_t  Imm,
MachineBasicBlock MBB,
MachineBasicBlock::iterator  II,
const DebugLoc DL,
unsigned NewImm 
) const
void Mips16InstrInfo::loadRegFromStack ( MachineBasicBlock MBB,
MachineBasicBlock::iterator  MBBI,
unsigned  DestReg,
int  FrameIndex,
const TargetRegisterClass RC,
const TargetRegisterInfo TRI,
int64_t  Offset 
) const
overridevirtual
void Mips16InstrInfo::makeFrame ( unsigned  SP,
int64_t  FrameSize,
MachineBasicBlock MBB,
MachineBasicBlock::iterator  I 
) const
void Mips16InstrInfo::restoreFrame ( unsigned  SP,
int64_t  FrameSize,
MachineBasicBlock MBB,
MachineBasicBlock::iterator  I 
) const
void Mips16InstrInfo::storeRegToStack ( MachineBasicBlock MBB,
MachineBasicBlock::iterator  MBBI,
unsigned  SrcReg,
bool  isKill,
int  FrameIndex,
const TargetRegisterClass RC,
const TargetRegisterInfo TRI,
int64_t  Offset 
) const
overridevirtual
bool Mips16InstrInfo::validImmediate ( unsigned  Opcode,
unsigned  Reg,
int64_t  Amount 
)
static

Definition at line 456 of file Mips16InstrInfo.cpp.

References llvm::isInt< 16 >(), llvm_unreachable, and PC.

static bool llvm::Mips16InstrInfo::validSpImm8 ( int  offset)
inlinestatic

Definition at line 91 of file Mips16InstrInfo.h.

Referenced by AddiuSpImm().


The documentation for this class was generated from the following files: