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 XCoreFunctionInfo(const Function & F,const TargetSubtargetInfo * STI)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 setVarArgsFrameIndex(int off)56 void setVarArgsFrameIndex(int off) { VarArgsFrameIndex = off; } getVarArgsFrameIndex()57 int getVarArgsFrameIndex() const { return VarArgsFrameIndex; } 58 59 int createLRSpillSlot(MachineFunction &MF); hasLRSpillSlot()60 bool hasLRSpillSlot() { return LRSpillSlotSet; } getLRSpillSlot()61 int getLRSpillSlot() const { 62 assert(LRSpillSlotSet && "LR Spill slot not set"); 63 return LRSpillSlot; 64 } 65 66 int createFPSpillSlot(MachineFunction &MF); hasFPSpillSlot()67 bool hasFPSpillSlot() { return FPSpillSlotSet; } getFPSpillSlot()68 int getFPSpillSlot() const { 69 assert(FPSpillSlotSet && "FP Spill slot not set"); 70 return FPSpillSlot; 71 } 72 73 const int* createEHSpillSlot(MachineFunction &MF); hasEHSpillSlot()74 bool hasEHSpillSlot() { return EHSpillSlotSet; } getEHSpillSlot()75 const int* getEHSpillSlot() const { 76 assert(EHSpillSlotSet && "EH Spill slot not set"); 77 return EHSpillSlot; 78 } 79 setReturnStackOffset(unsigned value)80 void setReturnStackOffset(unsigned value) { 81 assert(!ReturnStackOffsetSet && "Return stack offset set twice"); 82 ReturnStackOffset = value; 83 ReturnStackOffsetSet = true; 84 } 85 getReturnStackOffset()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>> & getSpillLabels()94 getSpillLabels() { 95 return SpillLabels; 96 } 97 }; 98 99 } // end namespace llvm 100 101 #endif // LLVM_LIB_TARGET_XCORE_XCOREMACHINEFUNCTIONINFO_H 102