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//===-- SIInstrInfo.h - SI Instruction Info Interface -----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
/// \file
/// \brief Interface definition for SIInstrInfo.
//
//===----------------------------------------------------------------------===//
#ifndef SIINSTRINFO_H
#define SIINSTRINFO_H
#include "AMDGPUInstrInfo.h"
#include "SIRegisterInfo.h"
namespace llvm {
class SIInstrInfo : public AMDGPUInstrInfo {
private:
const SIRegisterInfo RI;
MachineInstrBuilder buildIndirectIndexLoop(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I,
unsigned OffsetVGPR,
unsigned MovRelOp,
unsigned Dst,
unsigned Src0) const;
// If you add or remove instructions from this function, you will
public:
explicit SIInstrInfo(AMDGPUTargetMachine &tm);
const SIRegisterInfo &getRegisterInfo() const;
virtual void copyPhysReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI, DebugLoc DL,
unsigned DestReg, unsigned SrcReg,
bool KillSrc) const;
unsigned commuteOpcode(unsigned Opcode) const;
virtual MachineInstr *commuteInstruction(MachineInstr *MI,
bool NewMI=false) const;
virtual unsigned getIEQOpcode() const { assert(!"Implement"); return 0;}
MachineInstr *buildMovInstr(MachineBasicBlock *MBB,
MachineBasicBlock::iterator I,
unsigned DstReg, unsigned SrcReg) const;
virtual bool isMov(unsigned Opcode) const;
virtual bool isSafeToMoveRegClassDefs(const TargetRegisterClass *RC) const;
int isMIMG(uint16_t Opcode) const;
int isSMRD(uint16_t Opcode) const;
bool isVOP1(uint16_t Opcode) const;
bool isVOP2(uint16_t Opcode) const;
bool isVOP3(uint16_t Opcode) const;
bool isVOPC(uint16_t Opcode) const;
bool isInlineConstant(const MachineOperand &MO) const;
bool isLiteralConstant(const MachineOperand &MO) const;
virtual bool verifyInstruction(const MachineInstr *MI,
StringRef &ErrInfo) const;
bool isSALUInstr(const MachineInstr &MI) const;
static unsigned getVALUOp(const MachineInstr &MI);
bool isSALUOpSupportedOnVALU(const MachineInstr &MI) const;
/// \brief Return the correct register class for \p OpNo. For target-specific
/// instructions, this will return the register class that has been defined
/// in tablegen. For generic instructions, like REG_SEQUENCE it will return
/// the register class of its machine operand.
/// to infer the correct register class base on the other operands.
const TargetRegisterClass *getOpRegClass(const MachineInstr &MI,
unsigned OpNo) const;\
/// \returns true if it is legal for the operand at index \p OpNo
/// to read a VGPR.
bool canReadVGPR(const MachineInstr &MI, unsigned OpNo) const;
/// \brief Legalize the \p OpIndex operand of this instruction by inserting
/// a MOV. For example:
/// ADD_I32_e32 VGPR0, 15
/// to
/// MOV VGPR1, 15
/// ADD_I32_e32 VGPR0, VGPR1
///
/// If the operand being legalized is a register, then a COPY will be used
/// instead of MOV.
void legalizeOpWithMove(MachineInstr *MI, unsigned OpIdx) const;
/// \brief Legalize all operands in this instruction. This function may
/// create new instruction and insert them before \p MI.
void legalizeOperands(MachineInstr *MI) const;
/// \brief Replace this instruction's opcode with the equivalent VALU
/// opcode. This function will also move the users of \p MI to the
/// VALU if necessary.
void moveToVALU(MachineInstr &MI) const;
virtual unsigned calculateIndirectAddress(unsigned RegIndex,
unsigned Channel) const;
virtual const TargetRegisterClass *getIndirectAddrRegClass() const;
virtual MachineInstrBuilder buildIndirectWrite(MachineBasicBlock *MBB,
MachineBasicBlock::iterator I,
unsigned ValueReg,
unsigned Address,
unsigned OffsetReg) const;
virtual MachineInstrBuilder buildIndirectRead(MachineBasicBlock *MBB,
MachineBasicBlock::iterator I,
unsigned ValueReg,
unsigned Address,
unsigned OffsetReg) const;
void reserveIndirectRegisters(BitVector &Reserved,
const MachineFunction &MF) const;
void LoadM0(MachineInstr *MoveRel, MachineBasicBlock::iterator I,
unsigned SavReg, unsigned IndexReg) const;
};
namespace AMDGPU {
int getVOPe64(uint16_t Opcode);
int getCommuteRev(uint16_t Opcode);
int getCommuteOrig(uint16_t Opcode);
} // End namespace AMDGPU
} // End namespace llvm
namespace SIInstrFlags {
enum Flags {
// First 4 bits are the instruction encoding
VM_CNT = 1 << 0,
EXP_CNT = 1 << 1,
LGKM_CNT = 1 << 2
};
}
#endif //SIINSTRINFO_H
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