571b787b83
NVPTX, SPIRV, and WebAssembly pass virtual registers to this function since they don't perform register allocation. We need to use Register to avoid a virtual register being converted to MCRegister by the caller.
95 lines
4.1 KiB
C++
95 lines
4.1 KiB
C++
//===-- XCoreInstrInfo.h - XCore 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 XCore implementation of the TargetInstrInfo class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_LIB_TARGET_XCORE_XCOREINSTRINFO_H
|
|
#define LLVM_LIB_TARGET_XCORE_XCOREINSTRINFO_H
|
|
|
|
#include "XCoreRegisterInfo.h"
|
|
#include "llvm/CodeGen/TargetInstrInfo.h"
|
|
|
|
#define GET_INSTRINFO_HEADER
|
|
#include "XCoreGenInstrInfo.inc"
|
|
|
|
namespace llvm {
|
|
|
|
class XCoreInstrInfo : public XCoreGenInstrInfo {
|
|
const XCoreRegisterInfo RI;
|
|
virtual void anchor();
|
|
public:
|
|
XCoreInstrInfo();
|
|
|
|
/// 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).
|
|
///
|
|
const TargetRegisterInfo &getRegisterInfo() const { return RI; }
|
|
|
|
/// 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.
|
|
Register 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.
|
|
Register isStoreToStackSlot(const MachineInstr &MI,
|
|
int &FrameIndex) const override;
|
|
|
|
bool analyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB,
|
|
MachineBasicBlock *&FBB,
|
|
SmallVectorImpl<MachineOperand> &Cond,
|
|
bool AllowModify) const override;
|
|
|
|
unsigned insertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
|
|
MachineBasicBlock *FBB, ArrayRef<MachineOperand> Cond,
|
|
const DebugLoc &DL,
|
|
int *BytesAdded = nullptr) const override;
|
|
|
|
unsigned removeBranch(MachineBasicBlock &MBB,
|
|
int *BytesRemoved = nullptr) const override;
|
|
|
|
void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
|
|
const DebugLoc &DL, Register DestReg, Register SrcReg,
|
|
bool KillSrc, bool RenamableDest = false,
|
|
bool RenamableSrc = false) const override;
|
|
|
|
void storeRegToStackSlot(
|
|
MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, Register SrcReg,
|
|
bool isKill, int FrameIndex, const TargetRegisterClass *RC,
|
|
const TargetRegisterInfo *TRI, Register VReg,
|
|
MachineInstr::MIFlag Flags = MachineInstr::NoFlags) const override;
|
|
|
|
void loadRegFromStackSlot(
|
|
MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, Register DestReg,
|
|
int FrameIndex, const TargetRegisterClass *RC,
|
|
const TargetRegisterInfo *TRI, Register VReg,
|
|
MachineInstr::MIFlag Flags = MachineInstr::NoFlags) const override;
|
|
|
|
bool reverseBranchCondition(
|
|
SmallVectorImpl<MachineOperand> &Cond) const override;
|
|
|
|
// Emit code before MBBI to load immediate value into physical register Reg.
|
|
// Returns an iterator to the new instruction.
|
|
MachineBasicBlock::iterator loadImmediate(MachineBasicBlock &MBB,
|
|
MachineBasicBlock::iterator MI,
|
|
unsigned Reg, uint64_t Value) const;
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|