1 //===-- ARMInstrInfo.h - ARM Instruction Information ------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file contains the ARM implementation of the TargetInstrInfo class. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_LIB_TARGET_ARM_ARMINSTRINFO_H 14 #define LLVM_LIB_TARGET_ARM_ARMINSTRINFO_H 15 16 #include "ARMBaseInstrInfo.h" 17 #include "ARMRegisterInfo.h" 18 19 namespace llvm { 20 class ARMSubtarget; 21 22 class ARMInstrInfo : public ARMBaseInstrInfo { 23 ARMRegisterInfo RI; 24 public: 25 explicit ARMInstrInfo(const ARMSubtarget &STI); 26 27 /// Return the noop instruction to use for a noop. 28 MCInst getNop() const override; 29 30 // Return the non-pre/post incrementing version of 'Opc'. Return 0 31 // if there is not such an opcode. 32 unsigned getUnindexedOpcode(unsigned Opc) const override; 33 34 /// getRegisterInfo - TargetInstrInfo is a superset of MRegister info. As 35 /// such, whenever a client has an instance of instruction info, it should 36 /// always be able to get register info as well (through this method). 37 /// 38 const ARMRegisterInfo &getRegisterInfo() const override { return RI; } 39 40 private: 41 void expandLoadStackGuard(MachineBasicBlock::iterator MI) const override; 42 }; 43 44 } 45 46 #endif 47