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(MachineFunction &MF) {} 47 48 MachineFunctionInfo * 49 clone(BumpPtrAllocator &Allocator, MachineFunction &DestMF, 50 const DenseMap<MachineBasicBlock *, MachineBasicBlock *> &Src2DstMBB) 51 const override; 52 53 ~XCoreFunctionInfo() override = default; 54 55 void setVarArgsFrameIndex(int off) { VarArgsFrameIndex = off; } 56 int getVarArgsFrameIndex() const { return VarArgsFrameIndex; } 57 58 int createLRSpillSlot(MachineFunction &MF); 59 bool hasLRSpillSlot() { return LRSpillSlotSet; } 60 int getLRSpillSlot() const { 61 assert(LRSpillSlotSet && "LR Spill slot not set"); 62 return LRSpillSlot; 63 } 64 65 int createFPSpillSlot(MachineFunction &MF); 66 bool hasFPSpillSlot() { return FPSpillSlotSet; } 67 int getFPSpillSlot() const { 68 assert(FPSpillSlotSet && "FP Spill slot not set"); 69 return FPSpillSlot; 70 } 71 72 const int* createEHSpillSlot(MachineFunction &MF); 73 bool hasEHSpillSlot() { return EHSpillSlotSet; } 74 const int* getEHSpillSlot() const { 75 assert(EHSpillSlotSet && "EH Spill slot not set"); 76 return EHSpillSlot; 77 } 78 79 void setReturnStackOffset(unsigned value) { 80 assert(!ReturnStackOffsetSet && "Return stack offset set twice"); 81 ReturnStackOffset = value; 82 ReturnStackOffsetSet = true; 83 } 84 85 unsigned getReturnStackOffset() const { 86 assert(ReturnStackOffsetSet && "Return stack offset not set"); 87 return ReturnStackOffset; 88 } 89 90 bool isLargeFrame(const MachineFunction &MF) const; 91 92 std::vector<std::pair<MachineBasicBlock::iterator, CalleeSavedInfo>> & 93 getSpillLabels() { 94 return SpillLabels; 95 } 96 }; 97 98 } // end namespace llvm 99 100 #endif // LLVM_LIB_TARGET_XCORE_XCOREMACHINEFUNCTIONINFO_H 101