SIFoldOperands.cpp File Reference

#include "AMDGPU.h"
#include "GCNSubtarget.h"
#include "MCTargetDesc/AMDGPUMCTargetDesc.h"
#include "SIMachineFunctionInfo.h"
#include "llvm/ADT/DepthFirstIterator.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineOperand.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "si-fold-operands"

Functions
static const TargetRegisterClass *	getRegOpRC (const MachineRegisterInfo &MRI, const TargetRegisterInfo &TRI, const MachineOperand &MO)
static unsigned	macToMad (unsigned Opc)
static bool	isUseMIInFoldList (ArrayRef< FoldCandidate > FoldList, const MachineInstr *MI)
static void	appendFoldCandidate (SmallVectorImpl< FoldCandidate > &FoldList, MachineInstr *MI, unsigned OpNo, MachineOperand *FoldOp, bool Commuted=false, int ShrinkOp=-1)
static bool	evalBinaryInstruction (unsigned Opcode, int32_t &Result, uint32_t LHS, uint32_t RHS)
static unsigned	getMovOpc (bool IsScalar)
static void	mutateCopyOp (MachineInstr &MI, const MCInstrDesc &NewDesc)
static int	getOModValue (unsigned Opc, int64_t Val)
static bool	isAGPRCopy (const SIRegisterInfo &TRI, const MachineRegisterInfo &MRI, const MachineInstr &Copy, Register &OutReg, unsigned &OutSubReg)
	Checks whether Copy is a AGPR -> VGPR copy.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "si-fold-operands"

Definition at line 19 of file SIFoldOperands.cpp.

Function Documentation

appendFoldCandidate()

static void appendFoldCandidate ( SmallVectorImpl< FoldCandidate > &  FoldList, MachineInstr *  MI, unsigned  OpNo, MachineOperand *  FoldOp, bool  Commuted = false, int  ShrinkOp = -1  )

static

Definition at line 454 of file SIFoldOperands.cpp.

References llvm::dbgs(), llvm::SmallVectorImpl< T >::emplace_back(), LLVM_DEBUG, and MI.

evalBinaryInstruction()

static bool evalBinaryInstruction ( unsigned  Opcode, int32_t &  Result, uint32_t  LHS, uint32_t  RHS  )

static

Definition at line 1105 of file SIFoldOperands.cpp.

References LHS, and RHS.

getMovOpc()

static unsigned getMovOpc ( bool  IsScalar )

static

Definition at line 1171 of file SIFoldOperands.cpp.

getOModValue()

static int getOModValue ( unsigned  Opc, int64_t  Val  )

static

Definition at line 1615 of file SIFoldOperands.cpp.

References llvm::SIOutMods::DIV2, llvm_unreachable, llvm::SIOutMods::MUL2, llvm::SIOutMods::MUL4, and llvm::SIOutMods::NONE.

getRegOpRC()

static const TargetRegisterClass * getRegOpRC ( const MachineRegisterInfo &  MRI, const TargetRegisterInfo &  TRI, const MachineOperand &  MO  )

static

Definition at line 147 of file SIFoldOperands.cpp.

References MRI, and TRI.

isAGPRCopy()

static bool isAGPRCopy ( const SIRegisterInfo &  TRI, const MachineRegisterInfo &  MRI, const MachineInstr &  Copy, Register &  OutReg, unsigned &  OutSubReg  )

static

Checks whether Copy is a AGPR -> VGPR copy.

Returns true on success and stores the AGPR register in OutReg and the subreg in OutSubReg

Definition at line 1862 of file SIFoldOperands.cpp.

References assert(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), llvm::MachineOperand::getSubReg(), llvm::MachineInstr::isCopy(), llvm::Register::isVirtual(), MRI, and TRI.

isUseMIInFoldList()

static bool isUseMIInFoldList ( ArrayRef< FoldCandidate >  FoldList, const MachineInstr *  MI  )

static

Definition at line 449 of file SIFoldOperands.cpp.

References llvm::any_of(), llvm::CallingConv::C, and MI.

macToMad()

static unsigned macToMad ( unsigned  Opc )

static

Definition at line 158 of file SIFoldOperands.cpp.

mutateCopyOp()

static void mutateCopyOp ( MachineInstr &  MI, const MCInstrDesc &  NewDesc  )

static

Definition at line 1175 of file SIFoldOperands.cpp.

References I, and MI.