1 //===-- XCoreMachineFuctionInfo.h - XCore machine function info -*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file declares XCore-specific per-machine-function information.
11 //
12 //===----------------------------------------------------------------------===//
14 #ifndef XCOREMACHINEFUNCTIONINFO_H
15 #define XCOREMACHINEFUNCTIONINFO_H
17 #include "llvm/CodeGen/MachineFrameInfo.h"
18 #include "llvm/CodeGen/MachineFunction.h"
19 #include <vector>
21 namespace llvm {
23 // Forward declarations
24 class Function;
26 /// XCoreFunctionInfo - This class is derived from MachineFunction private
27 /// XCore target-specific information for each MachineFunction.
28 class XCoreFunctionInfo : public MachineFunctionInfo {
29 virtual void anchor();
30 bool LRSpillSlotSet;
31 int LRSpillSlot;
32 bool FPSpillSlotSet;
33 int FPSpillSlot;
34 bool EHSpillSlotSet;
35 int EHSpillSlot[2];
36 unsigned ReturnStackOffset;
37 bool ReturnStackOffsetSet;
38 int VarArgsFrameIndex;
39 mutable int CachedEStackSize;
40 std::vector<std::pair<MCSymbol*, CalleeSavedInfo> > SpillLabels;
42 public:
43 XCoreFunctionInfo() :
44 LRSpillSlotSet(false),
45 FPSpillSlotSet(false),
46 EHSpillSlotSet(false),
47 ReturnStackOffsetSet(false),
48 VarArgsFrameIndex(0),
49 CachedEStackSize(-1) {}
51 explicit XCoreFunctionInfo(MachineFunction &MF) :
52 LRSpillSlotSet(false),
53 FPSpillSlotSet(false),
54 EHSpillSlotSet(false),
55 VarArgsFrameIndex(0),
56 CachedEStackSize(-1) {}
58 ~XCoreFunctionInfo() {}
60 void setVarArgsFrameIndex(int off) { VarArgsFrameIndex = off; }
61 int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
63 int createLRSpillSlot(MachineFunction &MF);
64 bool hasLRSpillSlot() { return LRSpillSlotSet; }
65 int getLRSpillSlot() const {
66 assert(LRSpillSlotSet && "LR Spill slot not set");
67 return LRSpillSlot;
68 }
70 int createFPSpillSlot(MachineFunction &MF);
71 bool hasFPSpillSlot() { return FPSpillSlotSet; }
72 int getFPSpillSlot() const {
73 assert(FPSpillSlotSet && "FP Spill slot not set");
74 return FPSpillSlot;
75 }
77 const int* createEHSpillSlot(MachineFunction &MF);
78 bool hasEHSpillSlot() { return EHSpillSlotSet; }
79 const int* getEHSpillSlot() const {
80 assert(EHSpillSlotSet && "EH Spill slot not set");
81 return EHSpillSlot;
82 }
84 void setReturnStackOffset(unsigned value) {
85 assert(!ReturnStackOffsetSet && "Return stack offset set twice");
86 ReturnStackOffset = value;
87 ReturnStackOffsetSet = true;
88 }
90 unsigned getReturnStackOffset() const {
91 assert(ReturnStackOffsetSet && "Return stack offset not set");
92 return ReturnStackOffset;
93 }
95 bool isLargeFrame(const MachineFunction &MF) const;
97 std::vector<std::pair<MCSymbol*, CalleeSavedInfo> > &getSpillLabels() {
98 return SpillLabels;
99 }
100 };
101 } // End llvm namespace
103 #endif // XCOREMACHINEFUNCTIONINFO_H