| 1 | //===- XCoreMachineFunctionInfo.h - XCore machine function info -*- 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 declares XCore-specific per-machine-function information. |
| 10 | // |
| 11 | //===----------------------------------------------------------------------===// |
| 12 | |
| 13 | #ifndef LLVM_LIB_TARGET_XCORE_XCOREMACHINEFUNCTIONINFO_H |
| 14 | #define LLVM_LIB_TARGET_XCORE_XCOREMACHINEFUNCTIONINFO_H |
| 15 | |
| 16 | #include "llvm/CodeGen/MachineBasicBlock.h" |
| 17 | #include "llvm/CodeGen/MachineFrameInfo.h" |
| 18 | #include "llvm/CodeGen/MachineFunction.h" |
| 19 | #include <cassert> |
| 20 | #include <utility> |
| 21 | #include <vector> |
| 22 | |
| 23 | namespace llvm { |
| 24 | |
| 25 | /// XCoreFunctionInfo - This class is derived from MachineFunction private |
| 26 | /// XCore target-specific information for each MachineFunction. |
| 27 | class XCoreFunctionInfo : public MachineFunctionInfo { |
| 28 | bool LRSpillSlotSet = false; |
| 29 | int LRSpillSlot; |
| 30 | bool FPSpillSlotSet = false; |
| 31 | int FPSpillSlot; |
| 32 | bool EHSpillSlotSet = false; |
| 33 | int EHSpillSlot[2]; |
| 34 | unsigned ReturnStackOffset; |
| 35 | bool ReturnStackOffsetSet = false; |
| 36 | int VarArgsFrameIndex = 0; |
| 37 | mutable int CachedEStackSize = -1; |
| 38 | std::vector<std::pair<MachineBasicBlock::iterator, CalleeSavedInfo>> |
| 39 | SpillLabels; |
| 40 | |
| 41 | virtual void anchor(); |
| 42 | |
| 43 | public: |
| 44 | XCoreFunctionInfo() = default; |
| 45 | |
| 46 | explicit XCoreFunctionInfo(const Function &F, |
| 47 | const TargetSubtargetInfo *STI) {} |
| 48 | |
| 49 | MachineFunctionInfo * |
| 50 | clone(BumpPtrAllocator &Allocator, MachineFunction &DestMF, |
| 51 | const DenseMap<MachineBasicBlock *, MachineBasicBlock *> &Src2DstMBB) |
| 52 | const override; |
| 53 | |
| 54 | ~XCoreFunctionInfo() override = default; |
| 55 | |
| 56 | void setVarArgsFrameIndex(int off) { VarArgsFrameIndex = off; } |
| 57 | int getVarArgsFrameIndex() const { return VarArgsFrameIndex; } |
| 58 | |
| 59 | int createLRSpillSlot(MachineFunction &MF); |
| 60 | bool hasLRSpillSlot() { return LRSpillSlotSet; } |
| 61 | int getLRSpillSlot() const { |
| 62 | assert(LRSpillSlotSet && "LR Spill slot not set"); |
| 63 | return LRSpillSlot; |
| 64 | } |
| 65 | |
| 66 | int createFPSpillSlot(MachineFunction &MF); |
| 67 | bool hasFPSpillSlot() { return FPSpillSlotSet; } |
| 68 | int getFPSpillSlot() const { |
| 69 | assert(FPSpillSlotSet && "FP Spill slot not set"); |
| 70 | return FPSpillSlot; |
| 71 | } |
| 72 | |
| 73 | const int* createEHSpillSlot(MachineFunction &MF); |
| 74 | bool hasEHSpillSlot() { return EHSpillSlotSet; } |
| 75 | const int* getEHSpillSlot() const { |
| 76 | assert(EHSpillSlotSet && "EH Spill slot not set"); |
| 77 | return EHSpillSlot; |
| 78 | } |
| 79 | |
| 80 | void setReturnStackOffset(unsigned value) { |
| 81 | assert(!ReturnStackOffsetSet && "Return stack offset set twice"); |
| 82 | ReturnStackOffset = value; |
| 83 | ReturnStackOffsetSet = true; |
| 84 | } |
| 85 | |
| 86 | unsigned getReturnStackOffset() const { |
| 87 | assert(ReturnStackOffsetSet && "Return stack offset not set"); |
| 88 | return ReturnStackOffset; |
| 89 | } |
| 90 | |
| 91 | bool isLargeFrame(const MachineFunction &MF) const; |
| 92 | |
| 93 | std::vector<std::pair<MachineBasicBlock::iterator, CalleeSavedInfo>> & |
| 94 | getSpillLabels() { |
| 95 | return SpillLabels; |
| 96 | } |
| 97 | }; |
| 98 | |
| 99 | } // end namespace llvm |
| 100 | |
| 101 | #endif // LLVM_LIB_TARGET_XCORE_XCOREMACHINEFUNCTIONINFO_H |
| 102 |