| 1 | //===- LanaiMachineFuctionInfo.h - Lanai machine func info -------*- 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 declares Lanai-specific per-machine-function information. |
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| 10 | // |
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| 11 | //===----------------------------------------------------------------------===// |
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| 12 | |
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| 13 | #ifndef LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H |
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| 14 | #define LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H |
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| 15 | |
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| 16 | #include "LanaiRegisterInfo.h" |
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| 17 | #include "llvm/CodeGen/MachineFunction.h" |
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| 18 | #include "llvm/CodeGen/MachineRegisterInfo.h" |
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| 19 | |
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| 20 | namespace llvm { |
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| 21 | |
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| 22 | // LanaiMachineFunctionInfo - This class is derived from MachineFunction and |
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| 23 | // contains private Lanai target-specific information for each MachineFunction. |
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| 24 | class LanaiMachineFunctionInfo : public MachineFunctionInfo { |
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| 25 | virtual void anchor(); |
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| 26 | |
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| 27 | // SRetReturnReg - Lanai ABI require that sret lowering includes |
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| 28 | // returning the value of the returned struct in a register. This field |
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| 29 | // holds the virtual register into which the sret argument is passed. |
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| 30 | Register SRetReturnReg; |
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| 31 | |
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| 32 | // GlobalBaseReg - keeps track of the virtual register initialized for |
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| 33 | // use as the global base register. This is used for PIC in some PIC |
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| 34 | // relocation models. |
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| 35 | Register GlobalBaseReg; |
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| 36 | |
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| 37 | // VarArgsFrameIndex - FrameIndex for start of varargs area. |
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| 38 | int VarArgsFrameIndex; |
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| 39 | |
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| 40 | public: |
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| 41 | LanaiMachineFunctionInfo(const Function &F, const TargetSubtargetInfo *STI) |
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| 42 | : VarArgsFrameIndex(0) {} |
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| 43 | MachineFunctionInfo * |
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| 44 | clone(BumpPtrAllocator &Allocator, MachineFunction &DestMF, |
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| 45 | const DenseMap<MachineBasicBlock *, MachineBasicBlock *> &Src2DstMBB) |
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| 46 | const override; |
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| 47 | |
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| 48 | Register getSRetReturnReg() const { return SRetReturnReg; } |
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| 49 | void setSRetReturnReg(Register Reg) { SRetReturnReg = Reg; } |
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| 50 | |
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| 51 | int getVarArgsFrameIndex() const { return VarArgsFrameIndex; } |
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| 52 | void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; } |
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| 53 | }; |
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| 54 | |
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| 55 | } // namespace llvm |
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| 56 | |
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| 57 | #endif // LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H |
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| 58 | |
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