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https://github.com/c64scene-ar/llvm-6502.git
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6495f63945
- This change also makes it possible to switch between ARM / Thumb on a per-function basis. - Fixed thumb2 routine which expand reg + arbitrary immediate. It was using using ARM so_imm logic. - Use movw and movt to do reg + imm when profitable. - Other code clean ups and minor optimizations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77300 91177308-0d34-0410-b5e6-96231b3b80d8
62 lines
2.2 KiB
C++
62 lines
2.2 KiB
C++
//===- Thumb2InstrInfo.h - Thumb-2 Instruction Information ----------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the Thumb-2 implementation of the TargetInstrInfo class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef THUMB2INSTRUCTIONINFO_H
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#define THUMB2INSTRUCTIONINFO_H
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#include "llvm/Target/TargetInstrInfo.h"
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#include "ARM.h"
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#include "ARMInstrInfo.h"
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#include "Thumb2RegisterInfo.h"
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namespace llvm {
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class ARMSubtarget;
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class Thumb2InstrInfo : public ARMBaseInstrInfo {
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Thumb2RegisterInfo RI;
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public:
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explicit Thumb2InstrInfo(const ARMSubtarget &STI);
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// Return the non-pre/post incrementing version of 'Opc'. Return 0
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// if there is not such an opcode.
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unsigned getUnindexedOpcode(unsigned Opc) const;
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// Return true if the block does not fall through.
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bool BlockHasNoFallThrough(const MachineBasicBlock &MBB) const;
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bool copyRegToReg(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator I,
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unsigned DestReg, unsigned SrcReg,
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const TargetRegisterClass *DestRC,
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const TargetRegisterClass *SrcRC) const;
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void storeRegToStackSlot(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MBBI,
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unsigned SrcReg, bool isKill, int FrameIndex,
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const TargetRegisterClass *RC) const;
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void loadRegFromStackSlot(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MBBI,
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unsigned DestReg, int FrameIndex,
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const TargetRegisterClass *RC) const;
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/// getRegisterInfo - TargetInstrInfo is a superset of MRegister info. As
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/// such, whenever a client has an instance of instruction info, it should
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/// always be able to get register info as well (through this method).
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///
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const Thumb2RegisterInfo &getRegisterInfo() const { return RI; }
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};
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}
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#endif // THUMB2INSTRUCTIONINFO_H
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