| 1 | //= LoongArchRegisterInfo.h - LoongArch Register Information Impl -*- C++ -*-=// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // This file contains the LoongArch implementation of the TargetRegisterInfo |
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| 10 | // class. |
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| 11 | // |
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| 12 | //===----------------------------------------------------------------------===// |
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| 13 | |
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| 14 | #ifndef LLVM_LIB_TARGET_LOONGARCH_LOONGARCHREGISTERINFO_H |
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| 15 | #define LLVM_LIB_TARGET_LOONGARCH_LOONGARCHREGISTERINFO_H |
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| 16 | |
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| 17 | #include "llvm/CodeGen/TargetRegisterInfo.h" |
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| 18 | |
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| 19 | #define |
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| 20 | #include "LoongArchGenRegisterInfo.inc" |
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| 21 | |
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| 22 | namespace llvm { |
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| 23 | |
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| 24 | struct LoongArchRegisterInfo : public LoongArchGenRegisterInfo { |
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| 25 | |
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| 26 | LoongArchRegisterInfo(unsigned HwMode); |
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| 27 | |
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| 28 | const MCPhysReg *getCalleeSavedRegs(const MachineFunction *MF) const override; |
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| 29 | const uint32_t *getCallPreservedMask(const MachineFunction &MF, |
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| 30 | CallingConv::ID) const override; |
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| 31 | const uint32_t *getNoPreservedMask() const override; |
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| 32 | |
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| 33 | BitVector getReservedRegs(const MachineFunction &MF) const override; |
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| 34 | |
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| 35 | const TargetRegisterClass * |
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| 36 | getPointerRegClass(const MachineFunction &MF, |
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| 37 | unsigned Kind = 0) const override { |
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| 38 | return &LoongArch::GPRRegClass; |
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| 39 | } |
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| 40 | |
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| 41 | bool eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj, |
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| 42 | unsigned FIOperandNum, |
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| 43 | RegScavenger *RS = nullptr) const override; |
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| 44 | |
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| 45 | Register getFrameRegister(const MachineFunction &MF) const override; |
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| 46 | |
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| 47 | bool requiresRegisterScavenging(const MachineFunction &MF) const override { |
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| 48 | return true; |
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| 49 | } |
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| 50 | |
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| 51 | bool requiresFrameIndexScavenging(const MachineFunction &MF) const override { |
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| 52 | return true; |
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| 53 | } |
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| 54 | bool canRealignStack(const MachineFunction &MF) const override; |
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| 55 | }; |
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| 56 | } // end namespace llvm |
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| 57 | |
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| 58 | #endif // LLVM_LIB_TARGET_LOONGARCH_LOONGARCHREGISTERINFO_H |
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| 59 | |
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